UI中实现点击输入框时整个屏幕往上升，解决部分界面被遮盖问题

 

当点击输入框准备编辑时调用 animateKeyframesWithDuration 方法

 

// start time and duration are values between 0.0 and 1.0 specifying time and duration relative to the overall time of the keyframe animation

 //准备开始编辑时屏幕上升

- (void)textFieldDidBeginEditing:(UITextField *)textField{

    [UIView animateKeyframesWithDuration:0.25 delay:0 options:0 animations:^{

        self.view.frame = CGRectMake(0, -50, [UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height);

    } completion:nil];

}

 

 //准备结束编辑时屏幕下降

-(BOOL)textFieldShouldEndEditing:(UITextField *)textField{

    [UIView animateKeyframesWithDuration:0.25 delay:0 options:0 animations:^{

        self.view.frame = CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height);

    } completion:nil];

    return YES;

}