give a delay of few seconds without using threads

Question

How can I give a delay of few seconds without using threads.some function that I can call anywhere for giving delay. Android built-in function is highly preferred. Thanks

Answer 1

Call delayed method from a static context

public final class Config {
    public static MainActivity context = null;
}

In MainActivity:

@Override
protected void onCreate(final Bundle savedInstanceState) {
    ...
    Config.context = this;
    ...
}

...

public void execute_method_after_delay(final Callable method, int millisec)
{
    final Handler handler = new Handler();
    handler.postDelayed(new Runnable() {
        @Override
        public void run() {
            try {
                method.call();
            }
            catch (Exception e) {

            }
        }
    }, millisec);
}

From any class using static methods:

private static void a_static_method()
{

    int delay = 3000;
    Config.context.execute_method_after_delay(new Callable() {
        public Integer call() {
            return method_to_call();
        }
    }, delay);


}

public static Integer method_to_call()
{
    // DO SOMETHING