IOS 不让键盘挡住UITextField (自适应)

switchcore

于 2012-01-30 11:59:55 发布

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分类专栏： IOS 文章标签： ios uiview keyboard float user

本文链接：https://blog.youkuaiyun.com/switchcore/article/details/7219338

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本文深入探讨了在iOS应用中优化文本输入体验的方法，通过自定义键盘行为和视图调整，实现更流畅、响应更快的用户交互。重点介绍了如何在用户按下返回键时调整视图布局，确保键盘快速消失，同时保持UI的一致性和美观。文章还详细阐述了在文本字段开始编辑时，如何智能地调整视图位置，以减少键盘覆盖内容的影响，提供更好的用户体验。

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- (BOOL)textFieldShouldReturn:(UITextField *)textField   
{          
    // When the user presses return, take focus away from the text field so that the keyboard is dismissed.  
   
    NSTimeInterval animationDuration = 0.30f;       
    [UIView beginAnimations:@"ResizeForKeyboard" context:nil];       
    [UIView setAnimationDuration:animationDuration];       
    CGRect rect = CGRectMake(0.0f, 0.0f, self.frame.size.width, self.frame.size.height);       
    self.frame = rect;
    [UIView commitAnimations];
    [textField resignFirstResponder];
    return YES;        
} 

#define Move_Height 80
- (void)textFieldDidBeginEditing:(UITextField *)textField
{    
    
    CGRect frame = textField.frame;
    int offset = frame.origin.y + Move_Height - (self.frame.size.height - 216.0);//键盘高度216
    NSTimeInterval animationDuration = 0.30f;               
    [UIView beginAnimations:@"ResizeForKeyBoard" context:nil];               
    [UIView setAnimationDuration:animationDuration];
    float width = self.frame.size.width;               
    float height = self.frame.size.height;       
    if(offset > 0)
    {
        CGRect rect = CGRectMake(0.0f, -offset,width,height);               
        self.frame = rect;       
    }       
    [UIView commitAnimations];  
     
}