package com.mogo.utils;

import android.os.Handler;
import android.os.Looper;

public class UiThreadHandler {

    private static Handler sUiHandler = new Handler( Looper.getMainLooper() );

    private static Object sToken = new Object();

    public UiThreadHandler() {
    }

    public static boolean post( Runnable r ) {
        return sUiHandler != null && sUiHandler.post( r );
    }

    public static boolean postDelayed( Runnable r, long delayMillis ) {
        return sUiHandler != null && sUiHandler.postDelayed( r, delayMillis );
    }

    public static Handler getsUiHandler() {
        return sUiHandler;
    }

    public static boolean postOnceDelayed( Runnable r, long delayMillis ) {
        if ( sUiHandler == null ) {
            return false;
        } else {
            sUiHandler.removeCallbacks( r, sToken );
            return sUiHandler.postDelayed( r, delayMillis );
        }
    }

    public static void removeCallbacks( Runnable runnable ) {
        if ( sUiHandler != null ) {
            sUiHandler.removeCallbacks( runnable );
        }
    }
}