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Android的Broadcase的使用

2020年10月8日 下午12:00 作者：amin 分类：python 104

工程目录：
Android的Broadcase的使用
Android的Broadcase的使用
Android的Broadcase的使用
app-MainActivity

package com.example.app;


import androidx.appcompat.app.AppCompatActivity;


import android.content.Intent;

import android.os.Bundle;

import android.view.View;

import android.widget.Toast;


public class MainActivity extends AppCompatActivity implements View.OnClickListener{


    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);


        findViewById(R.id.btn1).setOnClickListener(this);

        findViewById(R.id.btn2).setOnClickListener(this);

        findViewById(R.id.btn3).setOnClickListener(this);

        findViewById(R.id.btn4).setOnClickListener(this);

        findViewById(R.id.btn5).setOnClickListener(this);

    }


    @Override

    public void onClick(View v) {

        Intent intent = getPackageManager().getLaunchIntentForPackage("com.example.app1");

        switch(v.getId()){

            case R.id.btn1:

                intent = getPackageManager().getLaunchIntentForPackage("com.example.app1");

                break;

            case R.id.btn2:

                intent = getPackageManager().getLaunchIntentForPackage("com.example.app2");

                break;

            case R.id.btn3:

                intent = getPackageManager().getLaunchIntentForPackage("com.example.app3");

                break;

            case R.id.btn4:

                intent = getPackageManager().getLaunchIntentForPackage("com.example.app4");

                break;

            case R.id.btn5:

                intent = getPackageManager().getLaunchIntentForPackage("com.example.app5");

                break;

        }

        if (intent == null) {

            Toast.makeText(getApplicationContext(),"没有安装该app",Toast.LENGTH_SHORT).show();

        } else {

            startActivity(intent);

        }

    }

}


 


Layout


<?xml version="1.0" encoding="utf-8"?>

<androidx.constraintlayout.widget.ConstraintLayout 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">


    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:orientation="vertical">


        <Button

            android:id="@+id/btn1"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:text="系统广播，接收短信放音乐（静态注册）" />


        <Button

            android:id="@+id/btn2"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:text="短信广播，接收短信显示内容（静态注册）" />


        <Button

            android:id="@+id/btn3"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:text="系统广播，按钮停止音乐服务（停止服务）" />


        <Button

            android:id="@+id/btn4"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:text="自定义广播（动态注册）" />


        <Button

            android:id="@+id/btn5"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:textAllCaps="false"

            android:text="使用PendingIntent创建通知" />

    </LinearLayout>

</androidx.constraintlayout.widget.ConstraintLayout>

 


app1-MainActivity


package com.example.app1;


import androidx.annotation.NonNull;

import androidx.appcompat.app.AppCompatActivity;

import androidx.core.app.ActivityCompat;

import androidx.core.content.ContextCompat;


import android.Manifest;

import android.content.ComponentName;

import android.content.pm.PackageManager;

import android.os.Bundle;

import android.widget.Toast;


public class MainActivity extends AppCompatActivity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        if (ContextCompat.checkSelfPermission(this, Manifest.permission.RECEIVE_SMS) != PackageManager.PERMISSION_GRANTED){

            ActivityCompat.requestPermissions(this,new String[]{"android.permission.RECEIVE_SMS"},1);

        }

    }


    @Override

    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {

        super.onRequestPermissionsResult(requestCode, permissions, grantResults);

        switch (requestCode){

            case 1:

                if(grantResults[0]!=PackageManager.PERMISSION_GRANTED){

                    Toast.makeText(this, "未授权，无法实现预定的功能！", Toast.LENGTH_SHORT).show();

                    finish();

                }

        }

    }


    @Override

    protected void onDestroy() {  //按手机返回键时触发

        super.onDestroy();

        //创建组件对象

        ComponentName receiver = new ComponentName(this,SmsReceiver.class);

        //获取包管理器对象

        PackageManager pm = getPackageManager();

        //禁用一个静态注册的广播接收者

        pm.setComponentEnabledSetting(receiver, PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);

    }

}

 


SmsReceiver


package com.example.app1;


import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.media.MediaPlayer;


public class SmsReceiver extends BroadcastReceiver {

    @Override

    public void onReceive(Context context, Intent intent) {

        MediaPlayer mediaPlayer = MediaPlayer.create(context,R.raw.cc);

        mediaPlayer.start();

    }

}

 


manifestes


<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.example.app1">


    <uses-permission android:name="android.permission.RECEIVE_SMS"/>

    <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/AppTheme">

        <receiver

            android:name=".SmsReceiver"

            android:enabled="true"

            android:exported="true">

            <intent-filter>

                <action android:name="android.provider.Telephony.SMS_RECEIVED"/>

            </intent-filter>

        </receiver>


        <activity android:name=".MainActivity">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />


                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>


</manifest>

 


app2-manifestes


<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.example.app2">


    <uses-permission android:name="android.permission.RECEIVE_SMS"/>

    <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/AppTheme">

        <receiver

            android:name=".SmsReceiver"

            android:enabled="true"

            android:exported="true">

            <intent-filter>

                <action android:name="android.provider.Telephony.SMS_RECEIVED"/>

            </intent-filter>

        </receiver>


        <activity android:name=".MainActivity">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />


                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>


</manifest>

 


MainActivity


package com.example.app2;


import androidx.annotation.NonNull;

import androidx.appcompat.app.AppCompatActivity;

import androidx.core.app.ActivityCompat;

import androidx.core.content.ContextCompat;


import android.Manifest;

import android.content.ComponentName;

import android.content.pm.PackageManager;

import android.os.Bundle;

import android.widget.Toast;


public class MainActivity extends AppCompatActivity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        if (ContextCompat.checkSelfPermission(this, Manifest.permission.RECEIVE_SMS) != PackageManager.PERMISSION_GRANTED){

            ActivityCompat.requestPermissions(this,new String[]{"android.permission.RECEIVE_SMS"},1);

        }

    }


    @Override

    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {

        super.onRequestPermissionsResult(requestCode, permissions, grantResults);

        switch (requestCode){

            case 1:

                if(grantResults[0]!=PackageManager.PERMISSION_GRANTED){

                    Toast.makeText(this, "未授权，无法实现预定的功能！", Toast.LENGTH_SHORT).show();

                    finish();

                }

        }

    }


    @Override

    protected void onDestroy() {  //按手机返回键时触发

        super.onDestroy();

        //创建组件对象

        ComponentName receiver = new ComponentName(this,SmsReceiver.class);

        //获取包管理器对象

        PackageManager pm = getPackageManager();

        //禁用一个静态注册的广播接收者

        pm.setComponentEnabledSetting(receiver, PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);

    }

}

 


SmsReceiver


package com.example.app2;


import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.os.Bundle;

import android.telephony.SmsMessage;

import android.widget.Toast;


import java.text.SimpleDateFormat;

import java.util.Date;


public class SmsReceiver extends BroadcastReceiver {

    @Override

    public void onReceive(Context context, Intent intent) {

        //获取发送短信意图对象携带的数据

        Bundle bundle = intent.getExtras();

        if(bundle != null){

            //可使用动态调试，查看短信数据结构

            Object[] pdus = (Object[]) bundle.get("pdus");

            //发送方的一条短信可能被分割、分多次发送

            SmsMessage[] msgs = new SmsMessage[pdus.length];

            for (int i = 0; i < msgs.length; i++) {

                byte[] pdu = (byte[]) pdus[i];

                //获取分段的短信

                msgs[i]= SmsMessage.createFromPdu(pdu);

            }

            //构建短信相关信息字符串

            StringBuilder strb=new StringBuilder();

            for(SmsMessage msg:msgs){

                strb.append("\n发短信人电话：\n")

                        .append(msg.getDisplayOriginatingAddress())

                        .append("\n短信内容：\n")

                        .append(msg.getMessageBody());

                //接收时间

                Date date=new Date(msg.getTimestampMillis());

                SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

                strb.append("\n短信接收时间：\n").append(sdf.format(date));

            }

            //在context指示的上下文（就是模块的MainActivity）里打Toast消息

            Toast.makeText(context, strb, Toast.LENGTH_LONG).show();

        }

    }

}


 


app3-manifestes


<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.example.app3">


    <uses-permission android:name="android.permission.RECEIVE_SMS"/>

    <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/AppTheme">

        <receiver

            android:name=".SmsReceiver"

            android:enabled="true"

            android:exported="true">

            <intent-filter>

                <action android:name="android.provider.Telephony.SMS_RECEIVED"/>

            </intent-filter>

        </receiver>


        <service

            android:name=".MyAudioService"

            android:enabled="true"

            android:exported="true" />


        <activity android:name=".MainActivity">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />


                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>


</manifest>

 


MainActivity


package com.example.app3;


import androidx.annotation.NonNull;

import androidx.appcompat.app.AppCompatActivity;

import androidx.core.app.ActivityCompat;

import androidx.core.content.ContextCompat;


import android.Manifest;

import android.content.Intent;

import android.content.pm.PackageManager;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.Toast;


public class MainActivity extends AppCompatActivity {


    private Button btnStop;

    private boolean isCast; //是否为广播激活


    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        if (ContextCompat.checkSelfPermission(this, Manifest.permission.RECEIVE_SMS) != PackageManager.PERMISSION_GRANTED){

            ActivityCompat.requestPermissions(this,new String[]{"android.permission.RECEIVE_SMS"},1);

        }

        btnStop=findViewById(R.id.btnStop);

        Intent intent = getIntent(); //获取广播意图对象

        isCast = intent.getBooleanExtra("iscast", false);  //默认值为false

        btnStop.setEnabled(isCast);   //设置停止按钮可用和单击监听

        if(isCast) Toast.makeText(this, "正在播放音乐...", Toast.LENGTH_SHORT).show();

        btnStop.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v){

                //显式服务调用意图（非绑定式）

                Intent intent=new Intent(MainActivity.this,MyAudioService.class);

                //在Activity组件里，停止音乐播放服务

                stopService(intent);

                finish();  //销毁本活动

            }

        });

    }


    @Override

    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {

        super.onRequestPermissionsResult(requestCode, permissions, grantResults);

        switch (requestCode){

            case 1:

                if(grantResults[0]!= PackageManager.PERMISSION_GRANTED){

                    Toast.makeText(this, "未授权，无法实现预定的功能！", Toast.LENGTH_SHORT).show();

                    finish();

                }else{

                    Toast.makeText(this, "请发一条短信验证...", Toast.LENGTH_SHORT).show();

                }

        }

    }

}

 


MyAudioService


package com.example.app3;


import android.app.Service;

import android.content.Intent;

import android.media.MediaPlayer;

import android.os.IBinder;


public class MyAudioService extends Service {

    MediaPlayer mediaPlayer;


    @Override

    public IBinder onBind(Intent intent) {

        return null;

    }

    @Override

    public void onCreate() {

        mediaPlayer  = MediaPlayer.create(this,R.raw.cc);

        mediaPlayer.start();

    }

    @Override

    public void onDestroy() {

        mediaPlayer.stop();

    }

}

 


SmsReceiver


package com.example.app3;


import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;


public class SmsReceiver extends BroadcastReceiver {

    @Override

    public void onReceive(Context context, Intent intent) {


        Intent serviceIntent = new Intent(context, MyAudioService.class);

        //在广播组件里，通过上下文对象启动音乐播放服务组件

        context.startService(serviceIntent);


        //新建调用Activity组件的意图

        Intent activityIntent = new Intent(context, MainActivity.class);

        activityIntent.putExtra("iscast", true);  //携带数据

        //新建栈用来存放被启动的Activity（当已经存在时，只做移动处理）

        activityIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

        //在广播组件里，通过上下文对象启动Activity组件

        context.startActivity(activityIntent);

    }

}

 


Layout


<?xml version="1.0" encoding="utf-8"?>

<androidx.constraintlayout.widget.ConstraintLayout 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">


    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:orientation="vertical">


        <Button

            android:id="@+id/btnStop"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:textAllCaps="false"

            android:text="Stop Music" />

    </LinearLayout>

</androidx.constraintlayout.widget.ConstraintLayout>

 


app4-MainActivity


package com.example.app4;


import androidx.appcompat.app.AppCompatActivity;


import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.os.Bundle;

import android.view.View;

import android.widget.TextView;

import android.widget.Toast;


public class MainActivity extends AppCompatActivity {

    private TextView tv;  //用于显示接收到的广播信息

    private BroadcastReceiver myReceiver = new BroadcastReceiver() {

        @Override

        public void onReceive(Context context, Intent intent) {

            Bundle mybundle =  intent.getExtras();

            String str1 = mybundle.getString("data1");

            String str2 = mybundle.getString("data2");

            Toast.makeText(context, str1+" " +str2, Toast.LENGTH_LONG).show();

            tv.setText(str1+" " +str2);

        }

    };

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);


        //使用意图过滤器类IntentFilter动态注册广播接收者

        IntentFilter myintentfliter = new IntentFilter();

        myintentfliter.addAction("com.example.broadcast.MY_BROADCAST");

        registerReceiver(myReceiver, myintentfliter);


        tv = findViewById(R.id.tv);

        findViewById(R.id.btn).setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View arg0) {

                Intent myintent = new Intent("com.example.broadcast.MY_BROADCAST");

                Bundle  bundle = new Bundle();

                bundle.putString("data1", "自定义广播与接收案例");

                bundle.putString("data2", "我是自定义的字符串!");

                myintent.putExtras(bundle);  //捆绑数据

                sendBroadcast(myintent);   //发送广播

                try {

                    Thread.sleep(1000);  //休眠一下，模拟广播可能存在的延迟

                } catch (InterruptedException e) {

                    e.printStackTrace();

                }

            }

        });

    }

}


 


Layout


<?xml version="1.0" encoding="utf-8"?>

<androidx.constraintlayout.widget.ConstraintLayout 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">


    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:orientation="vertical">


        <Button

            android:id="@+id/btn"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:text="运行时快速发广播" />


        <TextView

            android:id="@+id/tv"

            android:gravity="center"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:text="TextView" />

    </LinearLayout>

</androidx.constraintlayout.widget.ConstraintLayout>

 


app5-MainActivity


package com.example.app5;


import androidx.appcompat.app.AppCompatActivity;

import androidx.core.app.NotificationCompat;


import android.app.Notification;

import android.app.NotificationChannel;

import android.app.NotificationManager;

import android.app.PendingIntent;

import android.content.Intent;

import android.os.Build;

import android.os.Bundle;

import android.provider.Settings;

import android.view.View;

import android.widget.Button;

import android.widget.TextView;


public class MainActivity extends AppCompatActivity {

    NotificationManager notificationManager;  //通知管理器

    NotificationCompat.Builder builder;  //通知构造器（与Android版本相关）

    Button btn_notification;  //按钮

    boolean isCreate = false; //通知未创建


    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);


        btn_notification = findViewById(R.id.btn_notification);

        //创建设置意图对象

        Intent intent = new Intent(Settings.ACTION_SETTINGS);

        //创建延期意图对象

        PendingIntent pendingIntent = PendingIntent.getActivity(this,0,intent,0);

        //获取通知管理器

        notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

        //使用通知构造器

        builder = new NotificationCompat.Builder(this,getPackageName());

        //构建通知内容

        builder.setSmallIcon(R.drawable.ic_launcher_foreground)  //图标使用矢量图形

                .setContentTitle("进入设置界面")

                .setContentText("点击进入设置界面")

                .setWhen(System.currentTimeMillis())

                .setDefaults(Notification.DEFAULT_SOUND)

                .setContentIntent(pendingIntent);  //关键方法

        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { //Android 8.0

            NotificationChannel channel = new NotificationChannel( //Android 8.0需要创建通知频道

                    getPackageName(),

                    "MusicNotify",

                    NotificationManager.IMPORTANCE_DEFAULT

            );

            notificationManager.createNotificationChannel(channel);

        }


        btn_notification.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                isCreate = !isCreate;  //在创建与取消之间切换

                TextView tv=findViewById(R.id.hide_tv);

                if(isCreate) {  //如果准备创建通知

                    //发送通知至通知栏

                    notificationManager.notify(1, builder.build());  //发通知

                    tv.setVisibility(View.VISIBLE);  //设置可见

                    btn_notification.setText("取消通知");

                }else {

                    notificationManager.cancel(1);  //取消通知

                    btn_notification.setText("创建通知");

                    tv.setVisibility(View.INVISIBLE);  //设置不可见

                }

            }

        });

    }

}

 


Layout


<?xml version="1.0" encoding="utf-8"?>

<androidx.constraintlayout.widget.ConstraintLayout 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">


    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:orientation="vertical">


        <Button

            android:id="@+id/btn_notification"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:text="发通知" />


        <TextView

            android:id="@+id/hide_tv"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:visibility="invisible"

            android:gravity="center"

            android:text="通知已创建，请下拉查看！" />

    </LinearLayout>

</androidx.constraintlayout.widget.ConstraintLayout>

 


app1:
 Android的Broadcase的使用
 app2:
 Android的Broadcase的使用
 app3:
 Android的Broadcase的使用
 app4:
 Android的Broadcase的使用
 app5:
 Android的Broadcase的使用


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Android的Broadcase的使用




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未经允许不得转载：书荒源码源码网每日更新网站源码模板！ » Android的Broadcase的使用

                                
                                    
                                
                    

        

            
            
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