AnroidStudio-微信聊天信息界面实现_android studio 向对方微信发一条消息

1、效果图

（空白处与本篇内容无关）

2、布局文件

（1）聊天主界面

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:background="@drawable/background_main"
    >

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/msg_recycle_view"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <EditText
            android:id="@+id/input_text"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:hint="请输入内容"
            android:maxLines="2"
            />

        <Button
            android:id="@+id/send"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="发送"
            android:background="#1E8F34"
            android:textColor="#fff"/>
    </LinearLayout>
</LinearLayout>

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38

（2）消息列表布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:padding="10dp">

    <LinearLayout
        android:id="@+id/left_layout"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="left"
        android:layout_margin="10dp"
        android:background="@drawable/message_left"
        tools:ignore="RtlHardcoded">

        <TextView
            android:id="@+id/left_msg"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_margin="10dp"
            android:textColor="#fff" />

    </LinearLayout>
    <LinearLayout
        android:id="@+id/right_layout"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="right"
        android:background="@drawable/message_right"
        tools:ignore="RtlHardcoded">

        <TextView
            android:id="@+id/right_msg"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_margin="10dp"/>

    </LinearLayout>

</LinearLayout>

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45

（3）消息框布局

（a)message_left.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="@color/white"/>
    <corners
        android:radius="15dip"/>


</shape>

1
2
3
4
5
6
7
8
9

(b)message_right.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="@color/white"/>
    <corners
        android:radius="15dip"/>


</shape>

1
2
3
4
5
6
7
8
9

3、java文件

（1）Msg.java

package com.example;


//新建消息类 用content表示消息的内容，type表示消息的类型，消息类型有两个值，0代表收到的信息，1代表发送的信息
public class Msg {
    public static final int TYPE_RECEIVED = 0;
    public static final int TYPE_SENT = 1;
    private final String content;//改为final
    private final int type;//改为final

    public Msg(String content,int type){
        this.content = content;
        this.type = type;
    }

    public String getContent(){
        return content;
    }
    public int getType(){
        return type;
    }

}

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

（2）MsgAdpater

package com.example.ict2021menu;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import java.util.List;

public class MsgAdapter extends RecyclerView.Adapter<MsgAdapter.ViewHolder> {

    private final List<com.example.ict2021menu.Msg> mMsgList;//改为final

    static class ViewHolder extends RecyclerView.ViewHolder{

        LinearLayout leftLayout;
        LinearLayout rightLayout;
        TextView leftMsg;
        TextView rightMsg;

        public ViewHolder(View view){
            super(view);
            leftLayout = view.findViewById(R.id.left_layout);
            rightLayout = view.findViewById(R.id.right_layout);
            leftMsg = view.findViewById(R.id.left_msg);
            rightMsg = view.findViewById(R.id.right_msg);
        }
    }

    public MsgAdapter(List<com.example.ict2021menu.Msg> msgList){
        mMsgList = msgList;
    }
    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent,int viewType){
        View view = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.msg_item,parent,false);
        return new ViewHolder(view);
    }
    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int position){
        com.example.ict2021menu.Msg msg = mMsgList.get(position);
        if (msg.getType()== com.example.ict2021menu.Msg.TYPE_RECEIVED){
            //如果是收到消息，则显示在左边，将右边布局隐藏
            holder.leftLayout.setVisibility(View.VISIBLE);
            holder.rightLayout.setVisibility(View.GONE);
            holder.leftMsg.setText(msg.getContent());

        }else if(msg.getType()== com.example.ict2021menu.Msg.TYPE_SENT){
            holder.rightLayout.setVisibility(View.VISIBLE);
            holder.leftLayout.setVisibility(View.GONE);
            holder.rightMsg.setText(msg.getContent());
        }
    }
    @Override
    public int getItemCount(){
        return mMsgList.size();
    }

}

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65

（3）android调用文件

======>>本文件由于添加了其他组件，进行了删除，运行时需要自己改一下，上面文件改一下包名即可（根据AndroidStudio提示改就行）

package com.example.ict2021menu;

import android.os.Build;
import android.os.Bundle;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import androidx.annotation.NonNull;
import androidx.annotation.RequiresApi;
import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import com.example.ict2021menu.utils.bafaCloudUtil;
import com.example.ict2021menu.utils.fileUtil;
import com.example.ict2021menu.utils.huaweiCloudUtil;

import java.io.IOException;
import java.util.List;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

public class voice_Activity extends AppCompatActivity {


    private final List<Msg> msgList = home_Activity.msgList;//改为final
    private EditText inputText;
    private RecyclerView msgRecyclerView;
    private MsgAdapter adapter;


    @RequiresApi(api = Build.VERSION_CODES.O)
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_voice);

        //初始化消息
        initMegs();

        //找到输入文本和发送按钮控件
        inputText = (EditText)findViewById(R.id.input_text);
        Button send = (Button) findViewById(R.id.send);


        msgRecyclerView = (RecyclerView)findViewById(R.id.msg_recycle_view);

        LinearLayoutManager layoutManager = new LinearLayoutManager(this);

        msgRecyclerView.setLayoutManager(layoutManager);

        adapter = new MsgAdapter(msgList);

        msgRecyclerView.setAdapter(adapter);

        /*
        将语音识别结果内容以String传递到这
        Msg msg4 = new Msg("String result",Msg.TYPE_RECEIVED);
        msgList.add(msg4);
         */


        send.setOnClickListener(v -> {
            String content = inputText.getText().toString();

            if(!"".equals(content)){
                Msg msg = new Msg(content,Msg.TYPE_SENT);

                msgList.add(msg);
                //当有新消息，刷新RecyclerView的显示
                adapter.notifyItemInserted(msgList.size() - 1);
                //将RecyclerView定位到最后一行
                msgRecyclerView.scrollToPosition(msgList.size() - 1);
                //清空输入框内容
                inputText.setText("");

            };
            doRe2Question(content);
           // doRe2Bafa();
        });
    }


    @RequiresApi(api = Build.VERSION_CODES.O)
    public String QA(String question){


        StringBuffer tip1=new StringBuffer("对于您的问题: ");
        StringBuffer tip_question=new StringBuffer(question);
        tip1.append(tip_question);

        Msg msg_no = new Msg(tip1.toString(), Msg.TYPE_RECEIVED);
        msgList.add(msg_no);

        /*
        问答处理
         */
        Toast.makeText(getApplicationContext(),"正在处理中",Toast.LENGTH_SHORT).show();


        String tip="没有找到您想要的答案,或许您可以换个说法再试试?";
        return tip;
    }
    }
    private void initMegs(){
        Msg msg1 = new Msg("你好呀,我是你的智慧菜谱小助手",Msg.TYPE_RECEIVED);
        msgList.add(msg1);
        Msg msg2 = new Msg("Hi",Msg.TYPE_SENT);
        msgList.add(msg2);
        Msg msg3 = new Msg("有什么需要吗?,home页直接点击语音就可以跟我对话哦", Msg.TYPE_RECEIVED);
    }
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117