UITextField 与 键盘的关闭 about ios-learning HOT 1 CLOSED

// 触摸背景，关闭键盘
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    UITouch *touch = [touches anyObject];
    UIView *view = (UIView *)[touch view];
    NSLog(@"touch");
    if(view == self.view){
        [self.textField resignFirstResponder];//第一种方法,再头文件中声明成全局控件
        //[[self.view.subviews objectAtIndex:3] resignFirstResponder];//第二种方法,找到subViews数组中对应的view索引
        /* 第三种方法 遍历subviews找到UITextField类型的view
         * http://stackoverflow.com/questions/10395690/clear-uitextfield-data-when-coming-to-that-page-again-iphone
         */
        /*
        NSArray *arraysubViews = [self.view subviews];
        for(UIView *subView in arraysubViews){
            if([subView isKindOfClass:[UITextField class]]){
                [subView resignFirstResponder];
            }
        }
         */
    }
}