//点击任何处，出现提示框-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{    alert = [[AMSmoothAlertView alloc]initDropAlertWithTitle:@"Congrats !" andText:@"You‘ve just displayed this awesome alert view !" andCancelButton:NO forAlertType:AlertSuccess];    [alert.defaultButton setTitle:@"Great" forState:UIControlStateNormal];    alert.completionBlock = ^void (AMSmoothAlertView *alertObj, UIButton *button) {        if(button == alertObj.defaultButton) {            NSLog(@"Default");        } else {            NSLog(@"Others");        }    };    alert.cornerRadius = 3.0f;    [alert show];}