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Android Studio 选择 File - New - Other - Broadcast Receiver
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="cn.netkiller.broadcast">
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<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">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver
android:name=".MyReceiver"
android:enabled="true"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
</application>
</manifest>
MyReceiver 集成 BroadcastReceiver 在 onReceive 中写入你的业务逻辑。
package cn.netkiller.broadcast;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.widget.Toast;
public class MyReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
Toast.makeText(context, "程序已启动，接收到系统启动广播", Toast.LENGTH_SHORT).show();
}
}
现在重启 Android 模拟器，启动后虽然 App 并没有进入，但是屏幕底部会看到 "程序已启动，接收到系统启动广播"
静态注册
<receiver
android:name=".receiver.StaticBroadcastReceiver"
android:enabled="true"
android:exported="true">
<intent-filter android:priority="1000">
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.ACTION_BATTERY_CHANGED" />
<action android:name="android.intent.action.ACTION_BATTERY_LOW" />
<action android:name="android.intent.action.ACTION_BATTERY_OKAY" />
<action android:name="android.intent.action.ACTION_POWER_CONNECTED" />
<action android:name="android.intent.action.ACTION_POWER_DISCONNECTED" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
动态注册
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_BATTERY_CHANGED);
filter.addAction(Intent.ACTION_BATTERY_LOW);
filter.addAction(Intent.ACTION_BATTERY_OKAY);
filter.addAction(Intent.ACTION_POWER_CONNECTED);
filter.addAction(Intent.ACTION_POWER_DISCONNECTED);
Android 8 以上，静态广播必须指定包名 intent.setPackage(context.getPackageName());
public static void broadcastTest(String message) {
Log.d(TAG, "发送广播: " + message);
Context context = ContextHolder.getContext();
Intent intent = new Intent();
intent.setAction("test.broadcast");
intent.setPackage(context.getPackageName());
intent.putExtra("message", message);
context.sendBroadcast(intent);
}
<receiver
android:name="com.netkiller.conference.receiver.StaticBroadcastReceiver"
android:enabled="true"
android:exported="true">
<intent-filter android:priority="1000">
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.ACTION_BATTERY_CHANGED" />
<action android:name="android.intent.action.ACTION_BATTERY_LOW" />
<action android:name="android.intent.action.ACTION_BATTERY_OKAY" />
<action android:name="android.intent.action.ACTION_POWER_CONNECTED" />
<action android:name="android.intent.action.ACTION_POWER_DISCONNECTED" />
<action android:name="android.intent.action.DOWNLOAD_COMPLETE" />
<action android:name="android.intent.action.ACTION_CLOSE_SYSTEM_DIALOGS" />
<action android:name="android.intent.action" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
package com.netkiller.conference.receiver;
import android.app.DownloadManager;
import android.bluetooth.BluetoothDevice;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import com.netkiller.conference.MainActivity;
import com.netkiller.conference.ai.aigc.AigcSpeech;
import com.netkiller.conference.ai.aigc.Cache;
//import cn.aigcsst.aigc.education.skill.PictureSkillComponent;
public class StaticBroadcastReceiver extends BroadcastReceiver {
private static final String TAG = StaticBroadcastReceiver.class.getSimpleName();
private final Cache cache = new Cache();
private final AigcSpeech aigcSpeech = AigcSpeech.getInstance();
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
Log.d(TAG, "Static broadcast Action: " + intent.getAction());
try {
switch (action) {
case Intent.ACTION_BOOT_COMPLETED:
Log.d(TAG, "自启动了 ！！！！！");
intent = new Intent(context, MainActivity.class); // 要启动的Activity
//1.如果自启动APP，参数为需要自动启动的应用包名
//Intent intent = getPackageManager().getLaunchIntentForPackage(packageName);
//这句话必须加上才能开机自动运行app的界面
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
//2.如果自启动Activity
context.startActivity(intent);
//3.如果自启动服务
//context.startService(newIntent);
case Intent.ACTION_BATTERY_CHANGED://电量发生改变
// aigcSpeech.say("电量发生改变");
Log.e(TAG, "BatteryBroadcastReceiver --> ACTION_BATTERY_CHANGED");
break;
case Intent.ACTION_BATTERY_LOW://电量低
// aigcSpeech.say("电量低");
Log.e(TAG, "BatteryBroadcastReceiver --> ACTION_BATTERY_LOW");
break;
case Intent.ACTION_BATTERY_OKAY://电量充满
// aigcSpeech.say("电量充满");
Log.e(TAG, "BatteryBroadcastReceiver --> ACTION_BATTERY_OKAY");
break;
case Intent.ACTION_POWER_CONNECTED://接通电源
// aigcSpeech.say("接通电源");
Log.e(TAG, "BatteryBroadcastReceiver --> ACTION_POWER_CONNECTED");
break;
case Intent.ACTION_POWER_DISCONNECTED://拔出电源
// aigcSpeech.say("拔出电源");
Log.e(TAG, "BatteryBroadcastReceiver --> ACTION_POWER_DISCONNECTED");
break;
case DownloadManager.ACTION_DOWNLOAD_COMPLETE:
// aigcSpeech.say("文件下载完成");
long id = intent.getLongExtra(DownloadManager.EXTRA_DOWNLOAD_ID, 0);
cache.setDownloadCache(id);
// Log.d(TAG, "文件下载：" + id);
break;
case Intent.ACTION_CLOSE_SYSTEM_DIALOGS:
// 监听home键
// String reason = intent.getStringExtra(SYSTEM_REASON);
Log.d(TAG, "Home");
// 表示按了home键,程序到了后台
break;
case BluetoothDevice.ACTION_ACL_CONNECTED:
Log.d(TAG, "Bluetooth connected");
break;
case BluetoothDevice.ACTION_ACL_DISCONNECTED:
Log.d(TAG, "Bluetooth disconnected");
break;
case "main.screen":
context.startActivity(new Intent(context, MainActivity.class).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
break;
}
} catch (Exception e) {
Log.d(TAG, e.toString());
}
}
}