Question

I have a question that I have a splash screen in my android app in which I am using thread to wait for 8 seconds, it is running fine in 1.6,2.1,2.2,2.3.3, 3.0, 3.1 but returns error when I want to run the same in 4.0.3 version of android, I don’t know why? Please suggest me the right solution for the same. Below I mentioned error stack and my code also.

Error Stack:

01-05 10:16:06.417: E/AndroidRuntime(589): FATAL EXCEPTION: Thread-75
01-05 10:16:06.417: E/AndroidRuntime(589): java.lang.UnsupportedOperationException
01-05 10:16:06.417: E/AndroidRuntime(589):  at java.lang.Thread.stop(Thread.java:1076)
01-05 10:16:06.417: E/AndroidRuntime(589):  at java.lang.Thread.stop(Thread.java:1063)
01-05 10:16:06.417: E/AndroidRuntime(589):  at com.shipface.common.SplashScreen$1.run(SplashScreen.java:34)

Code:

public class SplashScreen extends Activity {
    /** Called when the activity is first created. */
    Thread splash;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        splash =  new Thread(){
            @Override
            public void run(){
                try {

                    synchronized(this){
                    // Wait given period of time or exit on touch
                        wait(4000);
                        Intent intent = new Intent(SplashScreen.this,HomeActivity.class);
                        startActivity(intent);
                        finish();
                    }
                }
                catch(InterruptedException ex){                    
                }

                finish();


                stop();                    
            }
        };


        splash.start();   
    }
}

Answer 1

Everybody’s already said where the exception is coming from (Thread.stop()), so I’ll leave that alone…

By far, the easiest method is to not create a Thread for this purpose at all; even an AsyncTask is over-doing it. This is what the Handler was created for (or even CountDownTimer, but Handler is cleaner, IMO).

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    Handler handler = new Handler();
    Runnable action = new Runnable(){
        @Override
        public void run(){
            Intent intent = new Intent(SplashScreen.this,HomeActivity.class);
            startActivity(intent);
            finish();
        }
    };

    handler.postDelayed(action, 8000);  
}

The Handler will even run the action on the main thread for you, where that code should pretty much be called anyway.

HTH