Class serviceManagerClass;

                    try {

                        serviceManagerClass = Class.forName("android.os.ServiceManager");

                        Method getService = serviceManagerClass.getMethod("getService",

                                String.class);

                        IBinder retbinder = (IBinder) getService.invoke(

                                serviceManagerClass, "statusbar");

                        Class statusBarClass = Class.forName(retbinder

                                .getInterfaceDescriptor());

                        Object statusBarObject = statusBarClass.getClasses()[0].getMethod(

                                "asInterface", IBinder.class).invoke(null,

                                new Object[] { retbinder });

                        Method clearAll = statusBarClass.getMethod("toggleRecentApps");

                        clearAll.setAccessible(true);

                        clearAll.invoke(statusBarObject);

                    } catch (ClassNotFoundException e) {

                        e.printStackTrace();

                    } catch (NoSuchMethodException e) {

                        e.printStackTrace();

                    } catch (IllegalArgumentException e) {

                        e.printStackTrace();

                    } catch (IllegalAccessException e) {

                        e.printStackTrace();

                    } catch (InvocationTargetException e) {

                        e.printStackTrace();

                    } catch (RemoteException e) {

                        e.printStackTrace();

                    }