Question

I am trying to write an utility method, that would be able to start activity (belonging to current application) marked as “android.intent.action.MAIN”. The utility method should not accept any parameters.

Desired code:

public void startMainActivity(Context context) {
    ...
}

Manifest:

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

Any ideas?

Answer 1

This works since API Level 3 (Android 1.5):

private void startMainActivity(Context context) throws NameNotFoundException {
    PackageManager pm = context.getPackageManager();
    Intent intent = pm.getLaunchIntentForPackage(context.getPackageName());
    context.startActivity(intent);
}