Question

During loading of my android application i want to show a logo during the first 2,3 seconds of launching, I think it’s less ugly than just seeing a UI after launching.
So in my code i make first a setContentView with the logo (splash) and after a setContentView with the UI (main).
The pb is instead of seeing the logo screen I just see a black screen.
I am doing that in main thread so I don’t understand.
Do you have an explanation of the problem and if possible a workaround ?

The not working well onCreate() of the activity is the following (black screen during 5 seconds and after can see the UI, no exception thrown) :

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.splash); //doesn't work
    Log.i(TAG, Thread.currentThread().getName());
    //this.r
    try {
        Thread.sleep(5000);
    } catch (InterruptedException e) {
        Log.i(TAG, Thread.currentThread().getName() + e.toString() );
    }
    setContentView(R.layout.main); //work OK
}

}

if I just left the class with the code below there is no problem I can see the “first” and only view :

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.splash); //work OK

}
}

Answer 1

You can use TimerTask instead of using Thread.sleep for making wait in main UI thread as:

new Timer().schedule(new TimerTask() {
    @Override
    public void run() {
        // use runOnUiThread for Updating Ui elements
        Your_Activity.this.runOnUiThread(new Runnable() {
            @Override
            public void run() {
                 // set Activity Next layout Here
                setContentView(R.layout.main);
            }
        });
    }
}, 5000);