Running code on boot android

Question

I'm having issues getting code to run on boot, I've downloaded the source for an example that should work, but it doesn't. according to the example, it should produce a toast when the phones turned on, but it doesn't happen, I've tested on android 6.0 and 7.0.

any help is appreciated thanks. The code is as follows:
Manifest:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.androidautostartup"
    android:versionCode="1"
    android:versionName="1.0" >

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

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="18" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <receiver
            android:name=".BootComplete"
            android:enabled="true"
            android:exported="false" >
            <intent-filter>
                <action android:name="android.intent.action.BOOT_COMPLETED" />
            </intent-filter>
        </receiver>

        <service android:name=".AutoStartUp" >
        </service>

        <activity
            android:name="com.example.androidautostartup.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

BootComplete.java

public class BootComplete extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {

        if (intent.getAction().equalsIgnoreCase(Intent.ACTION_BOOT_COMPLETED)) {
            Intent serviceIntent = new Intent(context, AutoStartUp.class);
            context.startService(serviceIntent);
        }
    }
}

AutoStartUp.java

public class AutoStartUp extends Service {

    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public void onCreate() {
        super.onCreate();
        Toast.makeText(this, "Service Started", Toast.LENGTH_LONG).show();
        // do something when the service is created
    }

}

Answer 1

I really wouldn't recommend doing UI stuff on a worker thread (service). While it can be done, it generates confusion for the user to receive a message outside an app context.

Having said that, if you need to do this you should be running UI code on the UI thread.

Handler handler = new Handler(Looper.getMainLooper());

handler.post(new Runnable() {

        @Override
        public void run() {
            Toast.makeText(getContext(), "Service Started", Toast.LENGTH_LONG).show();
        }
    });