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嵌入式应用开发安卓——摄像头和视频流_百科荣创嵌入式小车代码

作者：木道寻08 | 2024-07-18 20:34:22

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百科荣创嵌入式小车代码

1.分享一下我的页面布局

静态资源请从百科荣创官网案例里面移植 

1.1 .activity_login

  1. <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  2.     android:layout_width="match_parent"
  3.     android:layout_height="match_parent"
  4.     android:gravity="left"
  5.     android:fitsSystemWindows="true">
  6.  
  7.  
  8.     <LinearLayout
  9.         android:layout_width="match_parent"
  10.         android:layout_height="match_parent"
  11.         android:background="#03A9F4"
  12.         android:orientation="vertical">
  13.  
  14.         <ImageView
  15.             android:layout_width="200dp"
  16.             android:layout_height="0dp"
  17.             android:layout_gravity="center_horizontal"
  18.             android:layout_weight="1.5"
  19.             android:background="@mipmap/logo"
  20.             android:backgroundTint="@color/CDP_color"
  21.             android:scaleType="fitCenter" />
  22.  
  23.         <LinearLayout
  24.             android:layout_width="match_parent"
  25.             android:layout_height="0dp"
  26.             android:layout_gravity="center_vertical"
  27.             android:layout_marginLeft="100dp"
  28.             android:layout_marginTop="30dp"
  29.             android:layout_marginRight="100dp"
  30.             android:layout_weight="1.5"
  31.             android:orientation="horizontal">
  32.  
  33.             <TextView
  34.                 android:layout_width="0dp"
  35.                 android:layout_height="wrap_content"
  36.                 android:layout_gravity="center_vertical"
  37.                 android:layout_weight="1"
  38.                 android:gravity="center"
  39.                 android:padding="3dp"
  40.                 android:text="@string/deviceid"
  41.                 android:textColor="@color/black"
  42.                 android:textSize="20sp" />
  43.  
  44.             <EditText
  45.                 android:id="@+id/deviceid"
  46.                 android:layout_width="0dp"
  47.                 android:layout_height="wrap_content"
  48.                 android:layout_margin="1dp"
  49.                 android:layout_weight="3"
  50.                 android:background="@drawable/editviewcase"
  51.                 android:cursorVisible="true"
  52.                 android:hint="CDP"
  53.                 android:paddingStart="10dp"
  54.                 android:selectAllOnFocus="true"
  55.                 android:text="CDP"
  56.                 android:textColorHint="#c0c0c0" />
  57.         </LinearLayout>
  58.  
  59.         <LinearLayout
  60.             android:layout_width="match_parent"
  61.             android:layout_height="0dp"
  62.             android:layout_gravity="center_vertical"
  63.             android:layout_marginLeft="100dp"
  64.             android:layout_marginTop="10dp"
  65.             android:layout_marginRight="100dp"
  66.             android:layout_weight="1.5"
  67.             android:orientation="horizontal">
  68.  
  69.             <TextView
  70.                 android:layout_width="0dp"
  71.                 android:layout_height="wrap_content"
  72.                 android:layout_gravity="center_vertical"
  73.                 android:layout_weight="1"
  74.                 android:gravity="center"
  75.                 android:text="@string/loginname"
  76.                 android:textColor="@color/black"
  77.                 android:textSize="20sp" />
  78.  
  79.             <EditText
  80.                 android:id="@+id/loginname"
  81.                 android:layout_width="0dp"
  82.                 android:layout_height="wrap_content"
  83.                 android:layout_margin="1dp"
  84.                 android:layout_weight="3"
  85.                 android:background="@drawable/editviewcase"
  86.                 android:cursorVisible="true"
  87.                 android:hint="CDP"
  88.                 android:maxLength="10"
  89.                 android:paddingStart="10dp"
  90.                 android:selectAllOnFocus="true"
  91.                 android:text="CDP"
  92.                 android:textColorHint="#c0c0c0" />
  93.         </LinearLayout>
  94.  
  95.         <LinearLayout
  96.             android:layout_width="match_parent"
  97.             android:layout_height="0dp"
  98.             android:layout_gravity="center_vertical"
  99.             android:layout_marginLeft="100dp"
  100.             android:layout_marginTop="10dp"
  101.             android:layout_marginRight="100dp"
  102.             android:layout_weight="1.5"
  103.             android:gravity="center"
  104.             android:orientation="horizontal">
  105.  
  106.             <TextView
  107.                 android:layout_width="0dp"
  108.                 android:layout_height="wrap_content"
  109.                 android:layout_weight="1"
  110.                 android:gravity="center"
  111.                 android:padding="3dp"
  112.                 android:text="密    码"
  113.                 android:textColor="@color/black"
  114.                 android:textSize="20sp" />
  115.  
  116.             <LinearLayout
  117.                 android:layout_width="0dp"
  118.                 android:layout_height="wrap_content"
  119.                 android:layout_weight="3"
  120.                 android:background="@drawable/editviewcase"
  121.                 android:gravity="center">
  122.  
  123.                 <EditText
  124.                     android:id="@+id/loginpasswd"
  125.                     android:layout_width="0dp"
  126.                     android:layout_height="wrap_content"
  127.                     android:layout_margin="1dp"
  128.                     android:layout_weight="3"
  129.                     android:background="#00000000"
  130.                     android:hint="@string/loginpsd"
  131.                     android:inputType="textPassword"
  132.                     android:maxLength="16"
  133.                     android:paddingStart="10dp"
  134.                     android:selectAllOnFocus="true"
  135.                     android:text="CDP"
  136.                     android:textColorHint="#c0c0c0" />
  137.  
  138.                 <ImageView
  139.                     android:id="@+id/remember"
  140.                     android:layout_width="wrap_content"
  141.                     android:layout_height="wrap_content"
  142.                     android:layout_alignParentEnd="true"
  143.                     android:layout_marginEnd="10dp"
  144.                     android:background="@drawable/ic_off"
  145.                     android:text="显示密码"
  146.                     android:textSize="18sp" />
  147.             </LinearLayout>
  148.  
  149.  
  150.         </LinearLayout>
  151.  
  152.  
  153.         <LinearLayout
  154.             android:layout_width="match_parent"
  155.             android:layout_height="0dp"
  156.             android:layout_marginTop="10dp"
  157.             android:layout_weight="1.5"
  158.             android:orientation="horizontal">
  159.  
  160.             <Button
  161.                 android:id="@+id/reset"
  162.                 android:layout_width="wrap_content"
  163.                 android:layout_height="wrap_content"
  164.                 android:layout_marginLeft="150dp"
  165.                 android:layout_marginRight="100dp"
  166.                 android:layout_weight="1"
  167.                 android:background="@drawable/loginbutton"
  168.                 android:text="重  置"
  169.                 android:textColor="@color/white"
  170.                 android:textSize="20sp" />
  171.  
  172.             <Button
  173.                 android:id="@+id/connect"
  174.                 android:layout_width="wrap_content"
  175.                 android:layout_height="wrap_content"
  176.                 android:layout_marginRight="150dp"
  177.                 android:layout_weight="1"
  178.                 android:background="@drawable/loginbutton"
  179.                 android:text="连  接"
  180.                 android:textColor="@color/white"
  181.                 android:textSize="20sp" />
  182.         </LinearLayout>
  183.  
  184.     </LinearLayout>
  185.  
  186.  
  187.  
  188. </RelativeLayout>

1.2.activity_main

  1. <?xml version="1.0" encoding="utf-8"?>
  2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  3.     xmlns:app="http://schemas.android.com/apk/res-auto"
  4.     xmlns:tools="http://schemas.android.com/tools"
  5.     android:layout_width="match_parent"
  6.     android:layout_height="match_parent"
  7.     android:orientation="vertical"
  8.     android:background="@color/blue"
  9.     tools:context=".Activity.MainActivity">
  10. <RelativeLayout
  11.     android:layout_width="match_parent"
  12.     android:layout_height="0dp"
  13.     android:background="@drawable/bg_selete_all"
  14.     android:layout_weight="1">
  15.  
  16.     <ImageView
  17.         android:layout_width="140dp"
  18.         android:layout_height="50dp"
  19.         android:layout_centerInParent="true"
  20.         android:layout_marginLeft="10dp"
  21.         android:layout_marginTop="10dp"
  22.         android:layout_marginRight="10dp"
  23.         android:layout_marginBottom="10dp"
  24.         android:background="@mipmap/logo"
  25.         android:backgroundTint="@color/CDP_color"
  26.         android:scaleType="fitCenter" />
  27.  
  28.     <TextureView
  29.         android:id="@+id/video_view"
  30.         android:layout_width="match_parent"
  31.         android:layout_height="match_parent"
  32.         android:layout_marginStart="5dp"
  33.         android:layout_marginTop="5dp"
  34.         android:layout_marginEnd="5dp"
  35.         android:layout_marginBottom="5dp"
  36.         android:visibility="visible" />
  37.  
  38. </RelativeLayout>
  39.  
  40.     <androidx.recyclerview.widget.RecyclerView
  41.         android:id="@+id/center_view"
  42.         android:layout_width="match_parent"
  43.         android:layout_weight="1"
  44.         android:layout_height="0dp"
  45.         android:background="@drawable/bg_selete_all"/>
  46.  
  47.     <LinearLayout
  48.         android:layout_marginTop="5dp"
  49.         android:layout_width="match_parent"
  50.         android:layout_height="0dp"
  51.         android:background="@drawable/bg_selete_all"
  52.         android:layout_weight="1"
  53.         android:orientation="horizontal">
  54.         <LinearLayout
  55.             android:layout_width="0dp"
  56.             android:orientation="vertical"
  57.             android:layout_weight="1"
  58.             android:padding="5dp"
  59.             android:layout_height="match_parent">
  60.  
  61.             <Button
  62.                 android:id="@+id/Traffic_Light"
  63.                 android:layout_width="match_parent"
  64.                 android:gravity="center"
  65.                 android:layout_weight="1"
  66.                 android:background="@drawable/loginbutton"
  67.                 android:text="红绿灯识别"
  68.                 android:textColor="@color/white"
  69.                 android:textSize="13sp"
  70.                 android:layout_height="0dp"/>
  71.             <Button
  72.                 android:id="@+id/Traffic"
  73.                 android:layout_marginTop="5dp"
  74.                 android:gravity="center"
  75.                 android:layout_width="match_parent"
  76.                 android:layout_weight="1"
  77.                 android:background="@drawable/loginbutton"
  78.                 android:text="交通标志识别"
  79.                 android:textColor="@color/white"
  80.                 android:textSize="13sp"
  81.                 android:layout_height="0dp"/>
  82.             <Button
  83.                 android:id="@+id/FaceMask"
  84.                 android:layout_marginTop="5dp"
  85.                 android:gravity="center"
  86.                 android:layout_width="match_parent"
  87.                 android:layout_weight="1"
  88.                 android:background="@drawable/loginbutton"
  89.                 android:text="口罩识别"
  90.                 android:textColor="@color/white"
  91.                 android:textSize="13sp"
  92.                 android:layout_height="0dp"/>
  93.             <Button
  94.                 android:id="@+id/Shap"
  95.                 android:layout_marginTop="5dp"
  96.                 android:gravity="center"
  97.                 android:layout_width="match_parent"
  98.                 android:layout_weight="1"
  99.                 android:background="@drawable/loginbutton"
  100.                 android:text="图形识别"
  101.                 android:textColor="@color/white"
  102.                 android:textSize="13sp"
  103.                 android:layout_height="0dp"/>
  104.             <Button
  105.                 android:id="@+id/QR_Code"
  106.                 android:layout_marginTop="5dp"
  107.                 android:layout_width="match_parent"
  108.                 android:layout_weight="1"
  109.                 android:gravity="center"
  110.                 android:background="@drawable/loginbutton"
  111.                 android:text="多二维码识别"
  112.                 android:textColor="@color/white"
  113.                 android:textSize="13sp"
  114.                 android:layout_height="0dp"/>
  115.         </LinearLayout>
  116.         <LinearLayout
  117.             android:layout_width="0dp"
  118.             android:orientation="vertical"
  119.             android:padding="5dp"
  120.             android:layout_weight="1"
  121.             android:layout_height="match_parent">
  122.             <Button
  123.                 android:id="@+id/Color_Qr"
  124.  
  125.                 android:gravity="center"
  126.                 android:layout_width="match_parent"
  127.                 android:layout_weight="1"
  128.                 android:background="@drawable/loginbutton"
  129.                 android:text="彩色二维码识别"
  130.                 android:textColor="@color/white"
  131.                 android:textSize="13sp"
  132.                 android:layout_height="0dp"/>
  133.  
  134.  
  135.             <Button
  136.                 android:layout_marginTop="5dp"
  137.                 android:id="@+id/Chepai"
  138.                 android:layout_width="match_parent"
  139.                 android:layout_weight="1"
  140.                 android:gravity="center"
  141.                 android:background="@drawable/loginbutton"
  142.                 android:text="车牌识别"
  143.                 android:textColor="@color/white"
  144.                 android:textSize="13sp"
  145.                 android:layout_height="0dp"/>
  146.             <Button
  147.                 android:id="@+id/shapchepai"
  148.                 android:layout_marginTop="5dp"
  149.                 android:gravity="center"
  150.                 android:layout_width="match_parent"
  151.                 android:layout_weight="1"
  152.                 android:background="@drawable/loginbutton"
  153.                 android:text="指定车型车牌识别"
  154.                 android:textColor="@color/white"
  155.                 android:textSize="13sp"
  156.                 android:layout_height="0dp"/>
  157.  
  158.  
  159.             <Button
  160.                 android:id="@+id/color_chepai"
  161.                 android:layout_width="match_parent"
  162.                 android:gravity="center"
  163.                 android:layout_marginTop="5dp"
  164.                 android:layout_weight="1"
  165.                 android:background="@drawable/loginbutton"
  166.                 android:text="指定颜色车牌识别"
  167.                 android:textColor="@color/white"
  168.                 android:textSize="13sp"
  169.                 android:layout_height="0dp"/>
  170.  
  171.             <Button
  172.                 android:id="@+id/Clear_img"
  173.                 android:layout_marginTop="5dp"
  174.                 android:layout_width="match_parent"
  175.                 android:gravity="center"
  176.                 android:layout_weight="1"
  177.                 android:background="@drawable/loginbutton"
  178.                 android:text="清空"
  179.                 android:textColor="@color/white"
  180.                 android:textSize="13sp"
  181.                 android:layout_height="0dp"/>
  182.  
  183.         </LinearLayout>
  184.         <LinearLayout
  185.             android:layout_width="0dp"
  186.             android:orientation="vertical"
  187.             android:padding="5dp"
  188.             android:layout_weight="1"
  189.             android:layout_height="match_parent">
  190.  
  191.             <Button
  192.                 android:id="@+id/wenzi"
  193.  
  194.                 android:gravity="center"
  195.                 android:layout_width="match_parent"
  196.                 android:layout_weight="1"
  197.                 android:background="@drawable/loginbutton"
  198.                 android:text="文字识别"
  199.                 android:textColor="@color/white"
  200.                 android:textSize="13sp"
  201.                 android:layout_height="0dp"/>
  202.  
  203.  
  204.             <Button
  205.                 android:layout_marginTop="5dp"
  206.                 android:id="@+id/Dxcj"
  207.                 android:layout_width="match_parent"
  208.                 android:layout_weight="1"
  209.                 android:gravity="center"
  210.                 android:background="@drawable/loginbutton"
  211.                 android:text="定向裁剪"
  212.                 android:textColor="@color/white"
  213.                 android:textSize="13sp"
  214.                 android:layout_height="0dp"/>
  215.             <Button
  216.                 android:id="@+id/TFT"
  217.                 android:layout_marginTop="5dp"
  218.                 android:gravity="center"
  219.                 android:layout_width="match_parent"
  220.                 android:layout_weight="1"
  221.                 android:background="@drawable/loginbutton"
  222.                 android:text="TFT_A"
  223.                 android:textColor="@color/white"
  224.                 android:textSize="13sp"
  225.                 android:layout_height="0dp"/>
  226.  
  227.  
  228.             <Button
  229.                 android:id="@+id/TFT_B"
  230.                 android:layout_width="match_parent"
  231.                 android:gravity="center"
  232.                 android:layout_marginTop="5dp"
  233.                 android:layout_weight="1"
  234.                 android:background="@drawable/loginbutton"
  235.                 android:text="TFT_B"
  236.                 android:visibility="invisible"
  237.                 android:textColor="@color/white"
  238.                 android:textSize="13sp"
  239.                 android:layout_height="0dp"/>
  240.  
  241.             <Button
  242.  
  243.                 android:layout_marginTop="5dp"
  244.                 android:layout_width="match_parent"
  245.                 android:gravity="center"
  246.                 android:layout_weight="1"
  247.                 android:visibility="invisible"
  248.                 android:background="@drawable/loginbutton"
  249.                 android:text="暂定"
  250.                 android:textColor="@color/white"
  251.                 android:textSize="13sp"
  252.                 android:layout_height="0dp"/>
  253.         </LinearLayout>
  254.     </LinearLayout>
  255.  
  256. </LinearLayout>

 1.3 testimage 这个为中间滚动显示部分

  1. <?xml version="1.0" encoding="utf-8"?>
  2.  
  3. <androidx.cardview.widget.CardView
  4.     xmlns:android="http://schemas.android.com/apk/res/android"
  5.     xmlns:app="http://schemas.android.com/apk/res-auto"
  6.     android:layout_width="match_parent"
  7.     android:layout_height="wrap_content"
  8.     android:layout_marginStart="10dp"
  9.     android:layout_marginEnd="10dp"
  10.     android:layout_marginTop="10dp"
  11.     app:cardCornerRadius="5dp">
  12.  
  13.     <LinearLayout
  14.         android:background="@drawable/bg_selete_all"
  15.         android:orientation="vertical"
  16.         android:layout_width="match_parent"
  17.         android:layout_height="wrap_content"
  18.         >
  19.  
  20.         <ImageView
  21.             android:id="@+id/test_image"
  22.             android:padding="3dp"
  23.             android:layout_width="240dp"
  24.             android:layout_height="180dp"
  25.             android:scaleType="fitCenter"
  26.             android:layout_gravity="center_horizontal" />
  27.  
  28.         <TextView
  29.             android:id="@+id/test_name"
  30.             android:layout_width="wrap_content"
  31.             android:layout_height="wrap_content"
  32.             android:textSize="13sp"
  33.             android:layout_marginTop="2dp"
  34.             android:layout_marginBottom="2dp" />
  35.  
  36.         <TextView
  37.             android:id="@+id/test_name2"
  38.             android:layout_width="wrap_content"
  39.             android:layout_height="wrap_content"
  40.             android:layout_marginTop="2dp"
  41.             android:layout_marginBottom="2dp"
  42.             android:textSize="13sp" />
  43.  
  44.     </LinearLayout>
  45. </androidx.cardview.widget.CardView>

2.项目结构

2.1.CameraSearchService.java 可以直接复制粘贴，不用理解太深

  1. package com.example.test_car.CameraUtile;
  2.  
  3. import android.app.IntentService;
  4. import android.content.Intent;
  5. import android.util.Log;
  6.  
  7. import java.io.IOException;
  8. import java.io.UnsupportedEncodingException;
  9. import java.net.DatagramPacket;
  10. import java.net.DatagramSocket;
  11. import java.net.InetAddress;
  12. import java.net.InetSocketAddress;
  13. import java.net.SocketException;
  14. import java.net.UnknownHostException;
  15. import java.util.Timer;
  16. import java.util.TimerTask;
  17.  
  18. public class CameraSearchService extends IntentService {
  19.  
  20.     public CameraSearchService() {
  21.         super("CameraSearchService");
  22.     }
  23.  
  24.     //摄像头ͷIP
  25.     private String IP = null;
  26.  
  27.     @Override
  28.     protected void onHandleIntent(Intent intent) {
  29.         SearchCameraUtil searchCameraUtil;
  30.         for (int i = 0;i < 1 && IP == null;i++) {
  31.             searchCameraUtil = new SearchCameraUtil();
  32.             IP = searchCameraUtil !=null ? searchCameraUtil.send(): null;
  33.             try {
  34.                 Thread.sleep(500);
  35.             } catch (InterruptedException e) {
  36.                 e.printStackTrace();
  37.             }
  38.         }
  39.         Intent mintent = new Intent(CameraConnectUtil.A_S);
  40.         mintent.putExtra("IP", XcApplication.cameraip);
  41.         mintent.putExtra("IP", IP + ":81");
  42.         mintent.putExtra("pureip", IP);
  43.         sendBroadcast(mintent);
  44.     }
  45.  
  46.     class SearchCameraUtil {
  47.         private String IP = "";
  48.         private String TAG = "UDPClient";
  49.         private final int PORT = 3565;
  50.         private final int SERVER_PORT = 8600;
  51.         private byte[] mbyte = new byte[]{68, 72, 1, 1};
  52.         private DatagramSocket dSocket = null;
  53.         private byte[] msg = new byte[1024];
  54.         boolean isConn = false;
  55.  
  56.         public SearchCameraUtil() {
  57.         }
  58.  
  59.         public String send() {
  60.             InetAddress local = null;
  61.  
  62.             try {
  63.                 local = InetAddress.getByName("255.255.255.255");
  64.                 Log.e(this.TAG, "已找到服务器,连接中...");
  65.             } catch (UnknownHostException var7) {
  66.                 Log.e(this.TAG, "未找到服务器.");
  67.                 var7.printStackTrace();
  68.                 return null;
  69.             }
  70.  
  71.             try {
  72.                 if (this.dSocket != null) {
  73.                     this.dSocket.close();
  74.                     this.dSocket = null;
  75.                 }
  76.                 // 第一次连接没有报错，第二次开始报这个错误。字面意思看出是由于端口被占用，未释放导致。
  77.                 // 虽然程序貌似已经退出，个人猜测是由于系统还没有及时释放导致的。
  78. //				this.dSocket = new DatagramSocket(3565);
  79.                 if(dSocket == null){
  80.                     dSocket = new DatagramSocket(null);
  81.                     dSocket.setReuseAddress(true);
  82.                     dSocket.bind(new InetSocketAddress(PORT));
  83.                 }
  84.                 Log.e(this.TAG, "正在连接服务器...");
  85.             } catch (SocketException var6) {
  86.                 var6.printStackTrace();
  87.                 Log.e(this.TAG, "服务器连接失败.");
  88.                 return null;
  89.             }
  90.  
  91.             DatagramPacket sendPacket = new DatagramPacket(this.mbyte, 4, local, SERVER_PORT);
  92.             DatagramPacket recPacket = new DatagramPacket(this.msg, this.msg.length);
  93.  
  94.             try {
  95.                 this.dSocket.send(sendPacket);
  96.  
  97.                 Timer timer = new Timer();
  98.                 timer.schedule(new TimerTask() {
  99.                     @Override
  100.                     public void run() {
  101.                         if (isConn){
  102.                             dSocket.close();
  103.                             this.cancel();
  104.                         }
  105.                         isConn = true;
  106.                     }
  107.                 }, 0, 500);
  108.                 this.dSocket.receive(recPacket);
  109.                 timer.cancel();
  110.                 String text = new String(this.msg, 0, recPacket.getLength());
  111.                 if (text.substring(0, 2).equals("DH")) {    
  112.                     this.getIP(text);
  113.                 }
  114.  
  115.                 Log.e("IP值", this.IP);
  116.                 this.dSocket.close();
  117.                 Log.e(this.TAG, "消息发送成功!");
  118.             } catch (IOException var5) {
  119.                 var5.printStackTrace();
  120.                 Log.e(this.TAG, "消息发送失败.");
  121.                 return null;
  122.             }
  123.  
  124.             return this.IP;
  125.         }
  126.  
  127.         private void getIP(String text) {
  128.             try {
  129.                 byte[] ipbyte = text.getBytes("UTF-8");
  130.  
  131.                 for(int i = 4; i < 22 && ipbyte[i] != 0; ++i) {
  132.                     if (ipbyte[i] == 46) {
  133.                         this.IP = this.IP + ".";
  134.                     } else {
  135.                         this.IP = this.IP + (ipbyte[i] - 48);
  136.                     }
  137.                 }
  138.             } catch (UnsupportedEncodingException var4) {
  139.                 var4.printStackTrace();
  140.             }
  141.  
  142.         }
  143.     }
  144. }

2.2.CameraConnectUtil.java 需要理解里面的广播机制

  1. package com.example.test_car.CameraUtile;
  2.  
  3. import android.content.BroadcastReceiver;
  4. import android.content.Context;
  5. import android.content.Intent;
  6. import android.content.IntentFilter;
  7. import android.util.Log;
  8.  
  9. import com.example.test_car.Activity.MainActivity;
  10. import com.example.test_car.MessageBean.DataRefreshBean;
  11.  
  12. import org.greenrobot.eventbus.EventBus;
  13.  
  14.  
  15.  
  16.  
  17. public class CameraConnectUtil {
  18.  
  19.     public CameraConnectUtil(Context context){
  20.         this.context = context;
  21.     }
  22.  
  23.     private Context context;
  24.  
  25.     public void cameraInit() {
  26.         //广播接收器注册
  27.         IntentFilter intentFilter = new IntentFilter();
  28.         intentFilter.addAction(A_S);
  29.         context.registerReceiver(myBroadcastReceiver, intentFilter);
  30.     }
  31.  
  32.     public void cameraStopService(){
  33.         Intent intent = new Intent(context, CameraSearchService.class);
  34.         context.stopService(intent);
  35.     }
  36.  
  37.     public static final String A_S = "com.a_s";
  38.     public BroadcastReceiver myBroadcastReceiver = new BroadcastReceiver() {
  39.         public void onReceive(Context arg0, Intent arg1) {
  40.             MainActivity.IPCamera = arg1.getStringExtra("IP");
  41.             MainActivity.purecameraip = arg1.getStringExtra("pureip");
  42.             Log.e("camera ip::", "  " + MainActivity.IPCamera);
  43.             EventBus.getDefault().post(new DataRefreshBean(2));
  44.             context.unregisterReceiver(this);
  45.         }
  46.     };
  47.  
  48.  
  49.     // 搜索摄像cameraIP
  50.     public void search() {
  51.         Intent intent = new Intent(context, CameraSearchService.class);
  52.         context.startService(intent);
  53.     }
  54.  
  55.     public void destroy(){
  56.         try {
  57.             context.unregisterReceiver(myBroadcastReceiver);
  58.         }catch (RuntimeException ignored){
  59.  
  60.         }
  61.     }
  62.  
  63. }

2.3 DataRefreshBean.java 这个类代表了消息广播中的实体类

  1. package com.example.test_car.MessageBean;
  2.  
  3. public class DataRefreshBean {
  4.  
  5.     private int refreshState;
  6.  
  7.     public DataRefreshBean(int refreshState){
  8.         this.refreshState = refreshState;
  9.     }
  10.  
  11.     public int getRefreshState() {
  12.         return refreshState;
  13.     }
  14.  
  15.     public void setRefreshState(int refreshState) {
  16.         this.refreshState = refreshState;
  17.     }
  18. }

2.4.VLCPlayer.java 这个是视频播放工具类，不用深入理解

  1. package com.example.test_car.Utils;
  2.  
  3.  
  4. import android.content.Context;
  5. import android.media.MediaScannerConnection;
  6. import android.net.Uri;
  7. import android.util.Log;
  8. import android.view.TextureView;
  9. import android.view.View;
  10.  
  11. import com.example.test_car.Activity.MainActivity;
  12.  
  13. import org.videolan.libvlc.LibVLC;
  14. import org.videolan.libvlc.Media;
  15. import org.videolan.libvlc.MediaPlayer;
  16.  
  17. import java.io.File;
  18. import java.net.FileNameMap;
  19. import java.net.URLConnection;
  20. import java.util.ArrayList;
  21.  
  22.  
  23. /**
  24.  * VLC播放视频工具类
  25.  */
  26. public class VLCPlayer implements MediaPlayer.EventListener{
  27.  
  28.     private LibVLC libVLC;
  29.     private MediaPlayer mediaPlayer;
  30.  
  31.     public VLCPlayer(Context context) {
  32.         ArrayList<String> options = new ArrayList<>();
  33.         options.add("--no-drop-late-frames"); //防止掉帧
  34.         options.add("--skip-frames"); //防止掉帧
  35.         options.add("--rtsp-tcp");//强制使用TCP方式
  36.         options.add("--avcodec-hw=any"); //尝试使用硬件加速
  37.         options.add("--live-caching=0");//缓冲时长
  38.         options.add("--no-audio");//关闭音频
  39.         options.add("--sout-display");//持续串流输出
  40.         options.add("--network-caching=300");//网络缓冲时长
  41.  
  42.  
  43.  
  44.         libVLC = new LibVLC(context, options);
  45.         mediaPlayer = new MediaPlayer(libVLC);
  46.         mediaPlayer.setEventListener(this);
  47.     }
  48.  
  49.     /**
  50.      * 设置播放视图
  51.      * @param textureView
  52.      */
  53.     public void setVideoSurface(TextureView textureView) {
  54.         mediaPlayer.getVLCVout().setVideoSurface(textureView.getSurfaceTexture());
  55.         mediaPlayer.getVLCVout().setWindowSize(textureView.getWidth(), textureView.getHeight());
  56.         textureView.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
  57.             @Override
  58.             public void onLayoutChange(View v, int left, int top, int right, int bottom,
  59.                                        int oldLeft, int oldTop, int oldRight, int oldBottom) {
  60.                 // 获取新的宽度和高度
  61.                 int newWidth = right - left;
  62.                 int newHeight = bottom - top;
  63.                 // 设置VLC播放器的宽高参数
  64.                 mediaPlayer.getVLCVout().setWindowSize(newWidth, newHeight);
  65.             }
  66.         });
  67.  
  68.         mediaPlayer.getVLCVout().attachViews();
  69.  
  70.     }
  71.  
  72.     /**
  73.      * 设置播放地址
  74.      * @param url
  75.      */
  76.     public void setDataSource(String url) {
  77.         try {
  78.             Media media = new Media(libVLC, Uri.parse(url));
  79.             media.setHWDecoderEnabled(false,false);
  80.             mediaPlayer.setMedia(media);
  81.         }catch (Exception e){
  82.             Log.e("VLCPlayer",e.getMessage(),e);
  83.         }
  84.     }
  85.  
  86.     /**
  87.      * 播放
  88.      */
  89.     public void play() {
  90.         if (mediaPlayer == null) {
  91.             return;
  92.         }
  93.         mediaPlayer.play();
  94.     }
  95.  
  96.     /**
  97.      * 暂停
  98.      */
  99.     public void pause() {
  100.         if (mediaPlayer == null) {
  101.             return;
  102.         }
  103.         mediaPlayer.pause();
  104.     }
  105.  
  106.     /**
  107.      * 停止播放
  108.      */
  109.     public void stop() {
  110.         if (mediaPlayer == null) {
  111.             return;
  112.         }
  113.         new Thread(new Runnable() {
  114.             @Override
  115.             public void run() {
  116.                 mediaPlayer.stop();
  117.             }
  118.         }).start();
  119.     }
  120.  
  121.     public boolean takeSnapShot(int number, String _path, int width, int height){
  122.  
  123.         boolean b = mediaPlayer.takeSnapShot(number,_path,width,height);
  124.         MediaScannerConnection.scanFile(MainActivity.INSTANCE, new String[]{_path}, null, (path, uri) -> Log.e("资源刷新成功路径为", path));
  125.         return b;
  126.     }
  127.  
  128.     /**
  129.      * 兼容android 10
  130.      * 更新图库
  131.      * @param mContext
  132.      * @param file
  133.      */
  134.     public static void updatePhotoAlbum(Context mContext,String file) {
  135.         // 扫描刷新
  136.         String[] pathArray = new String[]{file};
  137.         String[] typeArray = new String[]{"image/jpeg"};
  138.         MediaScannerConnection.scanFile(mContext, pathArray, typeArray, new MediaScannerConnection.OnScanCompletedListener() {
  139.             @Override
  140.             public void onScanCompleted(String s, Uri uri) {
  141.                 Log.d("ImageUtils", "onScanCompleted  s->" + s);
  142.             }
  143.         });
  144.     }
  145.  
  146.     public static String getMimeType(File file) {
  147.         FileNameMap fileNameMap = URLConnection.getFileNameMap();
  148.         String type = fileNameMap.getContentTypeFor(file.getName());
  149.         return type;
  150.     }
  151.  
  152.  
  153.  
  154.     /**
  155.      * 释放资源
  156.      */
  157.     public void release() {
  158.         if(mediaPlayer!=null) {
  159.             mediaPlayer.release();
  160.         }
  161.         if(libVLC!=null) {
  162.             libVLC.release();
  163.         }
  164.     }
  165.  
  166.  
  167.     @Override
  168.     public void onEvent(MediaPlayer.Event event) {
  169.         switch (event.type) {
  170.             case MediaPlayer.Event.Buffering:
  171.                 // 处理缓冲事件
  172.                 if (callback != null) {
  173.                     callback.onBuffering(event.getBuffering());
  174.                 }
  175.                 break;
  176.             case MediaPlayer.Event.EndReached:
  177.                 // 处理播放结束事件
  178.                 if (callback != null) {
  179.                     callback.onEndReached();
  180.                 }
  181.                 break;
  182.             case MediaPlayer.Event.EncounteredError:
  183.                 // 处理播放错误事件
  184.                 if (callback != null) {
  185.                     callback.onError();
  186.                 }
  187.                 break;
  188.             case MediaPlayer.Event.TimeChanged:
  189.                 // 处理播放进度变化事件
  190.                 if (callback != null) {
  191.                     callback.onTimeChanged(event.getTimeChanged());
  192.                 }
  193.                 break;
  194.             case MediaPlayer.Event.PositionChanged:
  195.                 // 处理播放位置变化事件
  196.                 if (callback != null) {
  197.                     callback.onPositionChanged(event.getPositionChanged());
  198.                 }
  199.                 break;
  200.             case MediaPlayer.Event.Vout:
  201.  
  202.                 break;
  203.         }
  204.     }
  205.  
  206.  
  207.     private VLCPlayerCallback callback;
  208.  
  209.     public void setCallback(VLCPlayerCallback callback) {
  210.         this.callback = callback;
  211.     }
  212.  
  213.     public interface VLCPlayerCallback {
  214.         void onBuffering(float bufferPercent);
  215.         void onEndReached();
  216.         void onError();
  217.         void onTimeChanged(long currentTime);
  218.         void onPositionChanged(float position);
  219.     }
  220.  
  221. }

2.5 Login 登录页面代码

  1. package com.example.test_car.Activity;
  2.  
  3. import androidx.appcompat.app.AppCompatActivity;
  4. import androidx.core.view.ViewCompat;
  5. import androidx.core.view.WindowInsetsControllerCompat;
  6.  
  7. import android.content.Intent;
  8. import android.os.Bundle;
  9. import android.util.Log;
  10. import android.view.View;
  11. import android.view.Window;
  12. import android.view.WindowManager;
  13. import android.widget.Button;
  14.  
  15. import com.example.test_car.CameraUtile.CameraConnectUtil;
  16. import com.example.test_car.CameraUtile.CameraSearchService;
  17. import com.example.test_car.MessageBean.DataRefreshBean;
  18. import com.example.test_car.R;
  19.  
  20. import org.greenrobot.eventbus.EventBus;
  21. import org.greenrobot.eventbus.Subscribe;
  22. import org.greenrobot.eventbus.ThreadMode;
  23.  
  24. public class Login extends AppCompatActivity {
  25.     private Button bt_connect = null;
  26.     @Override
  27.     protected void onCreate(Bundle savedInstanceState) {
  28.         super.onCreate(savedInstanceState);
  29.         supportRequestWindowFeature(Window.FEATURE_NO_TITLE);//用于在 Activity 中去除标题栏
  30.         getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
  31.                 WindowManager.LayoutParams.FLAG_FULLSCREEN);// 设置全屏
  32.         Window window = getWindow();
  33.         window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
  34.         window.addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
  35.         WindowInsetsControllerCompat wic = ViewCompat.getWindowInsetsController(getWindow().getDecorView());
  36.         if (wic != null) {
  37.             // true表示Light Mode，状态栏字体呈黑色，反之呈白色
  38.             wic.setAppearanceLightStatusBars(true);
  39.         }
  40.         setContentView(R.layout.activity_login);
  41.         EventBus.getDefault().register(this); // EventBus消息注册,只有注册了消息机制后，才能收到广播出来的消息
  42.         bt_connect=findViewById(R.id.connect);
  43.         bt_connect.setOnClickListener(new View.OnClickListener() {
  44.             @Override
  45.             public void onClick(View v) {
  46.                 search();
  47.             }
  48.         });
  49.         CameraConnectUtil cameraConnectUtil = new CameraConnectUtil(this);
  50.         cameraConnectUtil.cameraInit();//摄像头初始化
  51.  
  52.     }
  53.  
  54.  
  55.     // 搜索摄像cameraIP
  56.     private void search() {
  57.         Intent intent = new Intent(Login.this, CameraSearchService.class);
  58.         startService(intent);
  59.     }
  60.  
  61.     /**
  62.      * 接收Eventbus消息
  63.      *
  64.      * @param refresh
  65.      */
  66.     @Subscribe(threadMode = ThreadMode.MAIN)
  67.     public void onEventMainThread(DataRefreshBean refresh) {
  68.         if (refresh.getRefreshState() == 2) {//如果CameraConnectUtil中广播出来的消息为2
  69.             startFirstActivity();//页面跳转
  70.         }
  71.     }
  72.  
  73.     private void startFirstActivity() {
  74.         startActivity(new Intent(Login.this,MainActivity.class));
  75.         finish();
  76.     }
  77.     @Override
  78.     protected void onDestroy() {
  79.         super.onDestroy();
  80.         EventBus.getDefault().unregister(this); // EventBus消息注销
  81.         Log.e("LoginActivity", "onDestroy");
  82.     }
  83. }

2.6 MainActivity

  1. package com.example.test_car.Activity;
  2.  
  3. import androidx.annotation.NonNull;
  4. import androidx.appcompat.app.AppCompatActivity;
  5.  
  6. import android.annotation.SuppressLint;
  7. import android.app.AlertDialog;
  8. import android.content.Context;
  9. import android.content.Intent;
  10. import android.graphics.Bitmap;
  11. import android.graphics.SurfaceTexture;
  12. import android.net.DhcpInfo;
  13. import android.net.wifi.WifiManager;
  14. import android.os.Bundle;
  15. import android.os.Handler;
  16. import android.os.Message;
  17. import android.text.format.Formatter;
  18. import android.util.Log;
  19. import android.view.MotionEvent;
  20. import android.view.TextureView;
  21. import android.view.View;
  22. import android.view.WindowManager;
  23. import android.widget.Button;
  24.  
  25. import com.bkrcl.control_car_video.camerautil.CameraCommandUtil;
  26. import com.example.test_car.CameraUtile.CameraConnectUtil;
  27. import com.example.test_car.CameraUtile.XcApplication;
  28. import com.example.test_car.Data.Connect;
  29. import com.example.test_car.MessageBean.DataRefreshBean;
  30. import com.example.test_car.R;
  31. import com.example.test_car.Utils.ToastUtil;
  32. import com.example.test_car.Utils.VLCPlayer;
  33.  
  34. import org.greenrobot.eventbus.EventBus;
  35. import org.greenrobot.eventbus.Subscribe;
  36. import org.greenrobot.eventbus.ThreadMode;
  37.  
  38. import java.net.InetAddress;
  39. import java.net.UnknownHostException;
  40. import java.util.concurrent.ExecutorService;
  41. import java.util.concurrent.Executors;
  42.  
  43. public class MainActivity extends AppCompatActivity implements VLCPlayer.VLCPlayerCallback  {
  44.  
  45.     private static final String TAG = "测试";
  46.     // 摄像头IP
  47.     public static String IPCamera = null;
  48.     public static String purecameraip = null;
  49.     // 图片
  50.     public static Bitmap bitmap;
  51.     // 摄像头连接状态
  52.     private boolean cameraConnectState = false;
  53.     ToastUtil toastUtil = new ToastUtil(this);
  54.     Connect connect = new Connect();
  55.     // 摄像头工具
  56.     public static CameraCommandUtil cameraCommandUtil;
  57.     private CameraConnectUtil cameraConnectUtil;
  58.     public static MainActivity INSTANCE;
  59.     // 小车ip
  60.     static String IPCar,IPmask;
  61.  
  62.     private VLCPlayer vlcPlayer;
  63. //坐标
  64.     private float x1 = 0;
  65.     private float y1 = 0;
  66.  
  67.     //控件
  68.     private TextureView textureView;
  69.     Button Traffic_Light_btn;//红绿灯识别按钮
  70.     Button Traffic_btn;//交通标志
  71.     Button FaceMask_btn;//口罩
  72.     Button Shap_btn;//图形
  73.     Button QR_Code_btn;//多二维码
  74.     Button Color_QR_btn;//彩色二维码
  75.     Button Chepai_btn;//车牌
  76.     Button Shap_ChePai_btn;//指定车型车牌
  77.     Button Color_Chepai_btn;//指定颜色车牌
  78.     Button Clear_btn ;// 清空
  79.     Button wenzi_btn;//文字
  80.     Button Dxcj;//定向裁剪
  81.     Button TFT;
  82.  
  83.  
  84.  
  85.  
  86.     @Override
  87.     protected void onCreate(Bundle savedInstanceState) {
  88.         super.onCreate(savedInstanceState);
  89.         getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
  90.                 WindowManager.LayoutParams.FLAG_FULLSCREEN);//这段代码是用于设置 Android 应用程序窗口为全屏模式
  91.         setContentView(R.layout.activity_main);
  92.  
  93.         initView();//控件初始化
  94.         init();
  95.         btn();
  96.         wifi_Init();//wifi初始化
  97.         INSTANCE=this;
  98.         EventBus.getDefault().register(this); // EventBus消息注册
  99.         cameraCommandUtil = new CameraCommandUtil();
  100.         cameraConnectUtil = new CameraConnectUtil(this);
  101.         cameraConnectUtil.cameraInit();//摄像头初始化
  102.         cameraConnectUtil.search();//搜索摄像头
  103.        XcApplication.executorServicetor.execute(()->{
  104.             connect.connect(recvhandler,IPCar);
  105.         });//建立与小车的连接
  106.  
  107.     }
  108.  
  109.  
  110.  
  111.     public static void setBitmap(Bitmap bitmap1) {
  112.         bitmap = bitmap1;
  113.     }
  114.  
  115.     public boolean isCameraConnectState() {//判断是否连接成功
  116.         return cameraConnectState;
  117.     }
  118.     public void setCameraConnectState(boolean cameraConnectState) {
  119.         this.cameraConnectState = cameraConnectState;
  120.     }
  121.     // 得到当前摄像头的图片信息，转换为Bitmap
  122.     public Bitmap getBitmap() {
  123.         return bitmap = textureView.getBitmap();
  124.     }
  125.  
  126.     //WiFi初始化
  127.     /**
  128.      * 首先，通过 getSystemService(Context.WIFI_SERVICE) 方法获取到 WifiManager 对象，
  129.      * 该对象用于管理 Wi-Fi 相关的操作。然后使用 wifiManager.getDhcpInfo() 方法获取到 DhcpInfo 对象，
  130.      * DhcpInfo 包含了当前连接的 Wi-Fi 网络的 DHCP 信息，包括网关地址、IP 地址、子网掩码等。
  131.      * 接着，通过 Formatter.formatIpAddress(dhcpInfo.gateway) 将 DhcpInfo 中的网关地址转换成字符串格式的 IP 地址。
  132.      * 这里的 dhcpInfo.gateway 表示 DhcpInfo 中保存的网关地址，通过 Formatter.formatIpAddress()
  133.      * 方法将其转换成常用的点分十进制的 IP 地址表示形式。
  134.      */
  135.     private void wifi_Init() {
  136.         // 得到服务器的IP地址
  137.         WifiManager wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
  138.         // 服务器管理器
  139.         DhcpInfo dhcpInfo = wifiManager.getDhcpInfo();
  140.         IPCar = Formatter.formatIpAddress(dhcpInfo.gateway);
  141.         IPmask = Formatter.formatIpAddress(dhcpInfo.netmask);
  142.     }
  143.  
  144.  
  145.     /**
  146.      * 接收显示小车发送的数据
  147.      */
  148.     @SuppressLint("HandlerLeak")
  149.     private final Handler recvhandler = new Handler() {
  150.         @SuppressLint("SetTextI18n")
  151.         public void handleMessage(Message msg) {
  152.             if (msg.what == 1) {
  153.                 byte[] mByte = (byte[]) msg.obj;
  154.                 if (mByte[0] == 0x55) {
  155.                     if (mByte[1] == (byte) 0xaa) {//主车
  156.                         // 显示数据
  157.  
  158.                     }
  159.  
  160.                 }
  161.             }
  162.         }
  163.     };
  164.  
  165.  
  166.  
  167.     private final Bitmap newbitmap = null;
  168.     /**
  169.      * 接收Eventbus消息
  170.      *
  171.      * @param refresh
  172.      */
  173.     @SuppressLint("SetTextI18n")
  174.     @Subscribe(threadMode = ThreadMode.MAIN)
  175.     public void onEventMainThread(DataRefreshBean refresh) {
  176.         if (refresh.getRefreshState() == 1) {//这个if其实可以不用谢，因为我没有做刷新按钮
  177.             Log.e(TAG, "onEventMainThread: " + IPCamera);
  178.             if (IPCamera.equals("null:81")) {
  179.                 Log.e(TAG, "onEventMainThread: " + IPCamera);
  180.                 cameraConnectUtil.cameraStopService();
  181.                 cameraConnectUtil.cameraInit();
  182.                 cameraConnectUtil.search();
  183.             } else {
  184.                 cameraConnectUtil.cameraStopService();
  185.                 cameraConnectUtil.cameraInit();
  186.                 cameraConnectUtil.search();
  187.                 initVLCPlayer(false); // 初始化视频流
  188.             }
  189.         } else if (refresh.getRefreshState() == 2) {//广播为2，代表摄像头和网络没问题
  190.             setCameraConnectState(true);
  191.             if (!IPCamera.equals("null:81")) {
  192.                 try {
  193.                     if (!isIpAddressInSubnet(IPCar, purecameraip,IPmask)) {
  194.                         toastUtil.ShowToast("请检查摄像头配置，当前摄像头地址与小车不在同一网段内，请重新配置");
  195.                     } else initVLCPlayer(false); // 初始化视频流
  196.                 } catch (UnknownHostException e) {
  197.                     throw new RuntimeException(e);
  198.                 }
  199.             }
  200.         } else if (refresh.getRefreshState() == 4) {//表示没搜到摄像头
  201.             if (bitmap != null) {
  202.                 bitmap.recycle();
  203.             }
  204.             setBitmap(newbitmap);
  205.         }
  206.     }
  207.  
  208.  
  209.     public static boolean isIpAddressInSubnet(String ipAddress, String subnetAddress, String subnetMask) throws UnknownHostException {
  210.         InetAddress inetAddress = InetAddress.getByName(ipAddress);
  211.         InetAddress subnet = InetAddress.getByName(subnetAddress);
  212.         InetAddress mask = InetAddress.getByName(subnetMask);
  213.  
  214.         byte[] inetAddressBytes = inetAddress.getAddress();
  215.         byte[] subnetBytes = subnet.getAddress();
  216.         byte[] maskBytes = mask.getAddress();
  217.  
  218.         for (int i = 0; i < inetAddressBytes.length; i++) {
  219.             int addressByte = inetAddressBytes[i] & 0xFF;
  220.             int subnetByte = subnetBytes[i] & 0xFF;
  221.             int maskByte = maskBytes[i] & 0xFF;
  222.  
  223.             if ((addressByte & maskByte) != (subnetByte & maskByte)) {
  224.                 return false;
  225.             }
  226.         }
  227.  
  228.         return true;
  229.     }
  230.  
  231.     /**
  232.      * 初始化视频流的代码
  233.      * @param isFirst
  234.      */
  235.     private void initVLCPlayer(Boolean isFirst) {
  236.         XcApplication.executorServicetor.execute(() -> {
  237.             if (isFirst) {
  238.                 vlcPlayer = new VLCPlayer(this);
  239.                 vlcPlayer.setVideoSurface(textureView);
  240.  
  241.             }
  242. //            String ip = IPCamera.substring(0, IPCamera.indexOf(":"));
  243.             String url = "rtsp://admin:888888@" + purecameraip + ":10554/tcp/av0_0";
  244.             vlcPlayer.setDataSource(url);
  245.             vlcPlayer.setCallback(INSTANCE);
  246.             vlcPlayer.play();
  247.         });
  248.     }
  249.  
  250.     /**
  251.      * 初始化视频流控件
  252.      */
  253.     private void initView(){
  254.         textureView = findViewById(R.id.video_view);
  255.         textureView.setOnTouchListener(new ontouchlistener1());
  256.         // 视频流显示区域
  257.         textureView.setSurfaceTextureListener(new TextureView.SurfaceTextureListener() {
  258.             @Override
  259.             public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture, int i, int i1) {
  260.                 initVLCPlayer(true);
  261.             }
  262.  
  263.             @Override
  264.             public void onSurfaceTextureSizeChanged(@NonNull SurfaceTexture surface, int width, int height) {
  265.  
  266.             }
  267.  
  268.             @Override
  269.             public boolean onSurfaceTextureDestroyed(@NonNull SurfaceTexture surface) {
  270.                 return false;
  271.             }
  272.  
  273.             @Override
  274.             public void onSurfaceTextureUpdated(@NonNull SurfaceTexture surface) {
  275.  
  276.             }
  277.         });
  278.  
  279.     }
  280.     /**
  281.      * 初始化按钮控件
  282.      */
  283.     private void init(){
  284.         Clear_btn = findViewById(R.id.Clear_img);//清空按钮
  285.         Traffic_Light_btn=findViewById(R.id.Traffic_Light);//红绿灯识别按钮
  286.         Traffic_btn = findViewById(R.id.Traffic);//交通标志
  287.         FaceMask_btn = findViewById(R.id.FaceMask);//口罩
  288.         Shap_btn = findViewById(R.id.Shap);//图形
  289.         QR_Code_btn = findViewById(R.id.QR_Code);//多二维码
  290.         Color_QR_btn = findViewById(R.id.Color_Qr);//彩色二维码
  291.         Chepai_btn = findViewById(R.id.Chepai);//车牌
  292.         Shap_ChePai_btn = findViewById(R.id.shapchepai);//指定车型车牌
  293.         Color_Chepai_btn = findViewById(R.id.color_chepai);//指定颜色车牌
  294.          wenzi_btn = findViewById(R.id.wenzi);//文字
  295.          Dxcj = findViewById(R.id.Dxcj);//定向裁剪
  296.          TFT =findViewById(R.id.TFT);
  297.  
  298.     }
  299.  
  300.     /**
  301.      * 底部按钮点击事件
  302.      */
  303.     private void btn(){
  304.  
  305.         Clear_btn.setOnClickListener(new View.OnClickListener() {
  306.             @Override
  307.             public void onClick(View view) {
  308.  
  309.             }
  310.         });//清空
  311.         Traffic_Light_btn.setOnClickListener(new View.OnClickListener() {
  312.             @Override
  313.             public void onClick(View view) {
  314.  
  315.             }
  316.         });//红绿灯
  317.         Traffic_btn.setOnClickListener(new View.OnClickListener() {
  318.             @Override
  319.             public void onClick(View view) {
  320.  
  321.             }
  322.         });//交通标志
  323.         FaceMask_btn.setOnClickListener(new View.OnClickListener() {
  324.             @Override
  325.             public void onClick(View view) {
  326.  
  327.  
  328.             }
  329.         });//口罩
  330.         Shap_btn.setOnClickListener(new View.OnClickListener() {
  331.             @Override
  332.             public void onClick(View view) {
  333.  
  334.                 toastUtil.ShowToast("请自行进行模型训练，如果不会，请联系学长!");
  335.             }
  336.         });//图形
  337.         QR_Code_btn.setOnClickListener(new View.OnClickListener() {
  338.             @Override
  339.             public void onClick(View view) {
  340.  
  341.             }
  342.         });//多二维码
  343.         Color_QR_btn.setOnClickListener(new View.OnClickListener() {
  344.             @Override
  345.             public void onClick(View view) {
  346.  
  347.             }
  348.         });//颜色二维码
  349.         Chepai_btn.setOnClickListener(new View.OnClickListener() {
  350.             @Override
  351.             public void onClick(View view) {
  352.  
  353.             }
  354.         });//车牌
  355.         Shap_ChePai_btn.setOnClickListener(new View.OnClickListener() {
  356.             @Override
  357.             public void onClick(View view) {
  358.  
  359.             }
  360.         });//指定车型识别车牌
  361.         Color_Chepai_btn.setOnClickListener(new View.OnClickListener() {
  362.             @Override
  363.             public void onClick(View view) {
  364.  
  365.             }
  366.         });//指定颜色识别车牌
  367.         wenzi_btn.setOnClickListener(new View.OnClickListener() {
  368.             @Override
  369.             public void onClick(View v) {
  370.  
  371.             }
  372.         });//文字
  373.         Dxcj.setOnClickListener(new View.OnClickListener() {
  374.             @Override
  375.             public void onClick(View v) {
  376.  
  377.             }
  378.         });//定向裁剪
  379.         TFT.setOnClickListener(new View.OnClickListener() {
  380.             @Override
  381.             public void onClick(View v) {
  382.                 TFT_Control();
  383.             }
  384.         });//控制tft
  385.  
  386.     }
  387.  
  388.  
  389.     private void TFT_Control() {
  390.         AlertDialog.Builder tft_builder = new AlertDialog.Builder(this);
  391.         tft_builder.setTitle("多功能信息显示标志物");
  392.         String[] ga = {"TFT（A）", "TFT（B）", "TFT（C）"};
  393.         tft_builder.setSingleChoiceItems(ga, -1, (dialog, i) -> {
  394.             switch (i) {
  395.                 case 0: // A
  396.                     Smart_DataDisplay_Image("多功能信息显示标志物（A）",0x0B);
  397.                     break;
  398.                 case 1: // B
  399.                     Smart_DataDisplay_Image("多功能信息显示标志物（B）",0x08);
  400.                     break;
  401.                 case 2: // C
  402.                     Smart_DataDisplay_Image("多功能信息显示标志物（C）",0x11);
  403.                     break;
  404.                 default:
  405.                     break;
  406.             }
  407.         });
  408.         tft_builder.create().show();
  409.     }
  410.  
  411.     /**
  412.      * 显示弹窗
  413.      * @param
  414.      */
  415.     private void Smart_DataDisplay_Image(String name,int id) {
  416.         AlertDialog.Builder TFT_Image_builder = new AlertDialog.Builder(this);
  417.         TFT_Image_builder.setTitle(name);
  418.         String[] TFT_Image_item = { "上翻一页", "下翻一页", "自动翻页"};
  419.         TFT_Image_builder.setSingleChoiceItems(TFT_Image_item, -1, (dialog, which) -> {
  420.             // TODO 自动生成的方法存根
  421.             switch (which) {
  422.                 case 0:
  423.                     connect.TFT_LCD(id, 0x10, 0x01, 0x00, 0x00);
  424.                     break;
  425.                 case 1:
  426.                     connect.TFT_LCD(id, 0x10, 0x02, 0x00, 0x00);
  427.                     break;
  428.                 case 2:
  429.                     connect.TFT_LCD(id, 0x10, 0x03, 0x00, 0x00);
  430.                     break;
  431.             }
  432.         });
  433.         TFT_Image_builder.create().show();
  434.     }
  435.  
  436.  
  437.  
  438.     @Override
  439.     public void onBuffering(float bufferPercent) {
  440.  
  441.     }
  442.  
  443.     @Override
  444.     public void onEndReached() {
  445.  
  446.     }
  447.  
  448.     @Override
  449.     public void onError() {
  450.  
  451.     }
  452.  
  453.     @Override
  454.     public void onTimeChanged(long currentTime) {
  455.  
  456.     }
  457.  
  458.     @Override
  459.     public void onPositionChanged(float position) {
  460.  
  461.     }
  462.  
  463.  
  464.     /**
  465.      * 控制摄像头滑动
  466.      */
  467.     private class ontouchlistener1 implements View.OnTouchListener {
  468.         @Override
  469.         public boolean onTouch(View v, MotionEvent event) {
  470.             // TODO 自动生成的方法存根
  471.             if (cameraConnectState) {
  472.                 switch (event.getAction() & MotionEvent.ACTION_MASK) {
  473.                     // 点击位置坐标
  474.                     case MotionEvent.ACTION_DOWN:
  475.                         x1 = event.getX();
  476.                         y1 = event.getY();
  477.                         break;
  478.                     // 弹起坐标
  479.                     case MotionEvent.ACTION_UP:
  480.                         float x2 = event.getX();
  481.                         float y2 = event.getY();
  482.                         float xx = x1 > x2 ? x1 - x2 : x2 - x1;
  483.                         float yy = y1 > y2 ? y1 - y2 : y2 - y1;
  484.                         // 判断滑屏趋势
  485.                         int MINLEN = 30;
  486.                         if (xx > yy) {
  487.                             if ((x1 > x2) && (xx > MINLEN)) {        // left
  488.                                 XcApplication.executorServicetor.execute(new Runnable() {
  489.                                     @Override
  490.                                     public void run() {
  491.                                         cameraCommandUtil.postHttp(IPCamera, 4, 1);  //左
  492.                                     }
  493.                                 });
  494.  
  495.                             } else if ((x1 < x2) && (xx > MINLEN)) { // right
  496.                                 XcApplication.executorServicetor.execute(new Runnable() {
  497.                                     @Override
  498.                                     public void run() {
  499.                                         cameraCommandUtil.postHttp(IPCamera, 6, 1);  //右
  500.                                     }
  501.                                 });
  502.                             }
  503.                         } else {
  504.                             if ((y1 > y2) && (yy > MINLEN)) {        // up
  505.                                 XcApplication.executorServicetor.execute(new Runnable() {
  506.                                     @Override
  507.                                     public void run() {
  508.                                         cameraCommandUtil.postHttp(IPCamera, 0, 1);  //上
  509.                                     }
  510.                                 });
  511.                             } else if ((y1 < y2) && (yy > MINLEN)) { // down
  512.                                 XcApplication.executorServicetor.execute(new Runnable() {
  513.                                     @Override
  514.                                     public void run() {
  515.                                         cameraCommandUtil.postHttp(IPCamera, 2, 1);  //下
  516.                                     }
  517.                                 });
  518.                             }
  519.                         }
  520.                         x1 = 0;
  521.                         x2 = 0;
  522.                         y1 = 0;
  523.                         y2 = 0;
  524.  
  525.                         break;
  526.                 }
  527.             }
  528.             return true;
  529.         }
  530.     }
  531.     /**
  532.      * 生命周期结束时结束Socket链接
  533.      */
  534.     @Override
  535.     protected void onDestroy() {
  536.         super.onDestroy();
  537.         connect.destory();
  538.     }
  539.  
  540. }

具体的识别代码不会放出来，如果需要了解怎么识别，请私信我。

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