【Android Studio】实现简易猴子摘桃功能_android小猴子摘桃

\app\src\main\AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.peach">
 
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.Peach">
        <activity
            android:name=".MainActivity"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".PeachActivity"/>
    </application>
 
</manifest>

\app\src\main\java\com\example\peach\MainActivity.java

package com.example.peach;
 
import androidx.activity.result.ActivityResult;
import androidx.activity.result.ActivityResultCallback;
import androidx.activity.result.ActivityResultLauncher;
import androidx.activity.result.contract.ActivityResultContracts;
import androidx.appcompat.app.AppCompatActivity;
 
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
 
public class MainActivity extends AppCompatActivity {
 
    private Button pickBtn;
    private TextView peachTotal;
    int count=0;
 
    private ActivityResultLauncher launcher = registerForActivityResult(new ActivityResultContracts.StartActivityForResult(), new ActivityResultCallback<ActivityResult>() {
        @Override
        public void onActivityResult(ActivityResult result) {
            if(result != null){
                if(result.getResultCode() == RESULT_OK){
                    Intent data = result.getData();
                    int peachNum = data.getIntExtra("peachNum", 0);
                    Log.i("MainActivity", "onActivityResult: "+ peachNum);
                    count = count + peachNum;
                    peachTotal.setText("桃子" + count + "个");
                }
            }
        }
    });
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        pickBtn = findViewById(R.id.pick_btn);
        peachTotal = findViewById(R.id.peach_total);
        pickBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent i = new Intent(MainActivity.this, PeachActivity.class);
                launcher.launch(i);
            }
        });
    }
}

\app\src\main\java\com\example\peach\PeachActivity.java

package com.example.peach;
 
import androidx.appcompat.app.AppCompatActivity;
 
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
 
public class PeachActivity extends AppCompatActivity implements View.OnClickListener {
 
    private ImageView peach1,peach2,peach3,peach4,peach5,peach6;
    private Button exitBtn;
    private int num = 0;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_peach);
        peach1 = findViewById(R.id.peach1);
        peach2 = findViewById(R.id.peach2);
        peach3 = findViewById(R.id.peach3);
        peach4 = findViewById(R.id.peach4);
        peach5 = findViewById(R.id.peach5);
        peach6 = findViewById(R.id.peach6);
        exitBtn = findViewById(R.id.exit_btn);
        peach1.setOnClickListener(this);
        peach2.setOnClickListener(this);
        peach3.setOnClickListener(this);
        peach4.setOnClickListener(this);
        peach5.setOnClickListener(this);
        peach6.setOnClickListener(this);
        exitBtn.setOnClickListener(this);
    }
 
    @Override
    public void onClick(View view) {
        if(view.getId() == R.id.peach1){
            info(peach1);
        }else if(view.getId() == R.id.peach2){
            info(peach2);
        }else if(view.getId() == R.id.peach3){
            info(peach3);
        }else if(view.getId() == R.id.peach4){
            info(peach4);
        }else if(view.getId() == R.id.peach5){
            info(peach5);
        }else if(view.getId() == R.id.peach6){
            info(peach6);
        }else if(view.getId() == R.id.exit_btn){
            returnData();
        }
    }
 
    private void returnData() {
        Intent i = new Intent();
        i.putExtra("peachNum", num);
        setResult(RESULT_OK,i);
        finish();
    }
 
    private void info(ImageView imageView) {
        imageView.setVisibility(View.INVISIBLE);
        num++;
    }
 
    @Override
    public void onBackPressed() {
        Intent i = new Intent();
        i.putExtra("peachNum", num);
        setResult(RESULT_OK,i);
        finish();
    }
}

\app\src\main\res\values\themes.xml

<resources xmlns:tools="http://schemas.android.com/tools">
    <!-- Base application theme. -->
    <style name="Theme.Peach" parent="Theme.MaterialComponents.DayNight.DarkActionBar.Bridge">
        <!-- Primary brand color. -->
        <item name="colorPrimary">@color/purple_500</item>
        <item name="colorPrimaryVariant">@color/purple_700</item>
        <item name="colorOnPrimary">@color/white</item>
        <!-- Secondary brand color. -->
        <item name="colorSecondary">@color/teal_200</item>
        <item name="colorSecondaryVariant">@color/teal_700</item>
        <item name="colorOnSecondary">@color/black</item>
        <!-- Status bar color. -->
        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
        <!-- Customize your theme here. -->
    </style>
</resources>

\app\src\main\res\layout\activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"
    android:background="@drawable/bg">
 
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/teal_700"
        android:gravity="center"
        android:padding="5dp"
        android:text="首页"
        android:textColor="#fff"
        android:textSize="25sp" />
 
    <ImageView
        android:id="@+id/monkey"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/monkey"
        android:layout_centerVertical="true"/>
 
    <Button
        android:id="@+id/pick_btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignTop="@+id/monkey"
        android:layout_toEndOf="@+id/monkey"
        android:background="@drawable/btn_peach"
        android:text="去桃园"
        android:textSize="22sp" />
 
    <ImageView
        android:id="@+id/peach"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/pick_btn"
        android:layout_alignLeft="@+id/pick_btn"
        android:layout_marginTop="50dp"
        android:src="@drawable/peach_pic" />
 
    <TextView
        android:id="@+id/peach_total"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/peach"
        android:layout_toEndOf="@+id/peach"
        android:text="摘到0个"
        android:textSize="22sp" />
 
</RelativeLayout>

\app\src\main\res\layout\activity_peach.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".PeachActivity"
    android:background="@drawable/tree_bg">
 
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/teal_700"
        android:gravity="center"
        android:padding="5dp"
        android:text="桃园"
        android:textColor="#fff"
        android:textSize="25sp" />
 
    <ImageView
        android:id="@+id/tree"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:src="@drawable/tree" />
 
    <ImageView
        android:id="@+id/peach1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignTop="@+id/tree"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="30dp"
        android:src="@drawable/peach_pic" />
 
    <ImageView
        android:id="@+id/peach2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/peach1"
        android:layout_alignLeft="@+id/tree"
        android:layout_marginLeft="50dp"
        android:src="@drawable/peach_pic" />
 
    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/peach_pic"
        android:id="@+id/peach3"
        android:layout_below="@+id/peach1"
        android:layout_alignRight="@+id/tree"
        android:layout_marginRight="50dp"/>
 
    <ImageView
        android:id="@+id/peach4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/peach2"
        android:layout_centerHorizontal="true"
        android:src="@drawable/peach_pic" />
 
    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/peach_pic"
        android:id="@+id/peach5"
        android:layout_below="@+id/peach2"
        android:layout_toStartOf="@+id/peach4"
        android:layout_marginRight="25dp"/>
 
    <ImageView
        android:id="@+id/peach6"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/peach2"
        android:layout_toEndOf="@+id/peach4"
        android:src="@drawable/peach_pic"
        android:layout_marginLeft="20dp"/>
 
    <Button
        android:id="@+id/exit_btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_alignParentBottom="true"
        android:layout_marginBottom="50dp"
        android:background="@drawable/btn_peach"
        android:text="退出桃园"
        android:textSize="22sp" />
 
</RelativeLayout>