Android的Broadcase的使用（读取短信和创建通知）

工程目录：

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{@Overrideprotected 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);}@Overridepublic 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"><LinearLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><Buttonandroid: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）" /><Buttonandroid: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）" /><Buttonandroid: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）" /><Buttonandroid:id="@+id/btn4"android:layout_width="match_parent"android:layout_height="wrap_content"android:text="自定义广播（动态注册）" /><Buttonandroid: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 {@Overrideprotected 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);}}@Overridepublic 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();}}}@Overrideprotected 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 {@Overridepublic 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"/><applicationandroid: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"><receiverandroid: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"/><applicationandroid: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"><receiverandroid: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 {@Overrideprotected 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);}}@Overridepublic 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();}}}@Overrideprotected 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 {@Overridepublic 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"/><applicationandroid: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"><receiverandroid:name=".SmsReceiver"android:enabled="true"android:exported="true"><intent-filter><action android:name="android.provider.Telephony.SMS_RECEIVED"/></intent-filter></receiver><serviceandroid: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@Overrideprotected 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falsebtnStop.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() {@Overridepublic 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}});}@Overridepublic 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;@Overridepublic IBinder onBind(Intent intent) {return null;}@Overridepublic void onCreate() {mediaPlayer  = MediaPlayer.create(this,R.raw.cc);mediaPlayer.start();}@Overridepublic 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 {@Overridepublic 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"><LinearLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><Buttonandroid: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() {@Overridepublic 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);}};@Overrideprotected 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() {@Overridepublic 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"><LinearLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><Buttonandroid:id="@+id/btn"android:layout_width="match_parent"android:layout_height="wrap_content"android:text="运行时快速发广播" /><TextViewandroid: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@Overrideprotected 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 8.0NotificationChannel 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() {@Overridepublic 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"><LinearLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><Buttonandroid:id="@+id/btn_notification"android:layout_width="match_parent"android:layout_height="wrap_content"android:text="发通知" /><TextViewandroid: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:

app2:

app3:

app4:

app5:

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Android的Broadcase的使用（读取短信和创建通知）

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