Question

i have class that extends thread and in one of its methodes i added Thread.sleep(5000) to wait for something, and i start this thread from onCreate() like this

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

MyClass mc = MyClass();
mc.start(); 
mc.join();
// do something

}

and in the MyClass run methode i do something like this

Class MyClass extends Thread {

public void run() {
sleep(15000);
// do something
}

}

the problem that i see the UI thread sleep for 5 second too if i run MyClass thread (that calls the sleep methode), why this happens ?

Answer 1

Well, here’s you problem:

mc.join();

This makes the current thread (i.e. the UI) wait until the thread represented by mc has finished its run() method. What were you trying to achieve with the join() anyway.