如何以编程方式"重启"Android应用程序？

public void restartApp() {
    Intent intent = getBaseContext().getPackageManager().getLaunchIntentForPackage(getBaseContext().getPackageName());
    ComponentName componentName = intent.getComponent();
    Intent mainIntent = Intent.makeRestartActivityTask(componentName);
    startActivity(mainIntent);
    Runtime.getRuntime().exit(0);
}

    android:name=".MainActivity"
    android:launchMode="singleTask">
   <intent-filter>
       <action android:name="android.intent.action.MAIN" />
       <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>
</activity>