Android實現app開機自啟動功能

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="包名">
 
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
    <uses-permission android:name="android.permission.INTERNET" />
   <!--    開機自啟動-->
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
 
    <application
        android:allowBackup="true"
        android:icon="@drawable/timg"
        android:label="@string/app_name"
        android:roundIcon="@drawable/timg"
        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>
        <activity android:name=".NetWorkActivity"></activity>
        <!-- 程式自啟動廣播 -->
        <receiver android:name="com.wisdtour.interact.Broadcast.MyBroadcastReceiver"
            >
            <intent-filter>
                <action android:name="android.intent.action.BOOT_COMPLETED"/>
                <category android:name="android.intent.category.LAUNCHER" />
                <category android:name="android.intent.category.HOME" />
            </intent-filter>
        </receiver>
    </application>
 
</manifest>

import ...;
 
//開機自啟動
public class MyBroadcastReceiver extends BroadcastReceiver {
    private final String ACTION_BOOT = "android.intent.action.BOOT_COMPLETED";
 
    @Override
    public void onReceive(Context context, Intent intent) {
        Log.e("TAG", intent.getAction());
        Toast.makeText(context, intent.getAction(), Toast.LENGTH_LONG).show();
 
        /**
         * 如果 系統 啟動的訊息，則啟動 APP 主頁活動
         */
 
        if (ACTION_BOOT.equals(intent.getAction())) {
            Intent intentMainActivity = new Intent(context, MainActivity.class);
            intentMainActivity.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            context.startActivity(intentMainActivity);
            Log.e("TAG", "開機完畢~------啟動MainActivity");
            Toast.makeText(context, "開機完畢~", Toast.LENGTH_LONG).show();
        }
    }
   
}