IOS中輸入框被軟鍵盤遮擋的解決辦法

 實現方法：

   1）將輸入框的代理設置為self

       （在lb文件中將輸入框的delegate設置為File’s Owner 。或者使用代碼textField.delegate = self;

   2）將輸入框所對應的ViewController.h設置實現了UITextFieldDelegate協議

         在ViewController.m文件中實現UITextFieldDelegate的三個方法即可：

    //開始編輯輸入框的時候，軟鍵盤出現，執行此事件

    -(void)textFieldDidBeginEditing:(UITextField *)textField

    {

        CGRect frame = textField.frame;

        int offset = frame.origin.y + 32 - (self.view.frame.size.height - 216.0);//鍵盤高度216


    NSTimeInterval animationDuration = 0.30f;  
    [UIView beginAnimations:@"ResizeForKeyboard" context:nil];  
    [UIView setAnimationDuration:animationDuration];  

    //將視圖的Y坐標向上移動offset個單位，以使下面騰出地方用于軟鍵盤的顯示  
    if(offset > 0)  
        self.view.frame = CGRectMake(0.0f, -offset, self.view.frame.size.width, self.view.frame.size.height);  

    [UIView commitAnimations];  
}  

//當用戶按下return鍵或者按回車鍵，keyboard消失  
-(BOOL)textFieldShouldReturn:(UITextField *)textField  
{  
    [textField resignFirstResponder];  
    return YES;  
}  

//輸入框編輯完成以后，將視圖恢復到原始狀態  
-(void)textFieldDidEndEditing:(UITextField *)textField  
{  
    self.view.frame =CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height);  
}  </pre> 


 方法很簡單吧？請注意一定不要忘記設置輸入框的代理delegate哦