Why Isn\'t My Android Service Starting on Boot?

Start a Service on Android Boot

Implementing the correct configuration to automatically start a service upon Android OS boot is crucial. Despite seemingly having everything set up properly, there might be underlying issues preventing the desired behavior.

Android Manifest

Review the provided Android Manifest:

<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.phx.batterylogger" android:versioncode="1" android:versionname="1.0" android:installlocation="internalOnly">

<uses-sdk android:minsdkversion="8"></uses-sdk>
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"></uses-permission>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
<uses-permission android:name="android.permission.BATTERY_STATS"></uses-permission>

<application android:icon="@drawable/icon" android:label="@string/app_name">
    <service android:name=".BatteryLogger"></service>
    <receiver android:name=".StartupIntentReceiver">  
        <intent-filter>  
            <action android:name="android.intent.action.BOOT_COMPLETED"></action>  
        </intent-filter>  
    </receiver>
</application>

</manifest>

Ensure that the BOOT_COMPLETED action is registered in the IntentReceiver.

BroadcastReceiver for Startup

Next, check the StartupIntentReceiver:

package com.phx.batterylogger;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;

public class StartupIntentReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        Intent serviceIntent = new Intent(context, BatteryLogger.class);
        context.startService(serviceIntent);
    }
}

This receiver should be listening for the BOOT_COMPLETED action and starting the desired service.

Troubleshooting

If the service is not starting on boot, consider the following steps:

• Verify that the logs indicate the receiver is receiving the BOOT_COMPLETED broadcast.
• Check that the target service is properly declared and configured in the Manifest.
• Ensure that the target service is not disabled or optimized by the system.
• Consider using the Context.startForegroundService(Intent intent, int notificationId) API to start the service in the foreground (available in API level 26 and above).

Complete Example

For a comprehensive example of an AutoStart application, refer to the following code snippet:

AndroidManifest

<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="pack.saltriver" android:versioncode="1" android:versionname="1.0">

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

    <application android:icon="@drawable/icon" android:label="@string/app_name">

        <receiver android:name=".autostart">
            <intent-filter>
                <action android:name="android.intent.action.BOOT_COMPLETED"></action>
            </intent-filter>
        </receiver>

        <activity android:name=".hello"></activity>
        <service android:enabled="true" android:name=".service"></service>
    </application>
</manifest>

autostart.java

public class autostart extends BroadcastReceiver 
{
    public void onReceive(Context context, Intent arg1) 
    {
        Intent intent = new Intent(context,service.class);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            context.startForegroundService(intent);
        } else {
            context.startService(intent);
        }
        Log.i("Autostart", "started");
    }
}

service.java

public class service extends Service
{
    private static final String TAG = "MyService";
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }
    public void onDestroy() {
        Toast.makeText(this, "My Service Stopped", Toast.LENGTH_LONG).show();
        Log.d(TAG, "onDestroy");
    }

    @Override
    public void onStart(Intent intent, int startid)
    {
        Intent intents = new Intent(getBaseContext(),hello.class);
        intents.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        startActivity(intents);
        Toast.makeText(this, "My Service Started", Toast.LENGTH_LONG).show();
        Log.d(TAG, "onStart");
    }
}

hello.java

public class hello extends Activity 
{   
    public void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Toast.makeText(getBaseContext(), "Hello........", Toast.LENGTH_LONG).show();
    }
}

Implementing these steps thoroughly should ensure your Android service starts successfully upon OS boot.

The above is the detailed content of Why Isn\'t My Android Service Starting on Boot?. For more information, please follow other related articles on the PHP Chinese website!