解決鍵盤遮擋輸入框的問題，鍵盤遮擋輸入框

解決鍵盤遮擋輸入框的問題，鍵盤遮擋輸入框
1)首先得遵守協議UITextFieldDelegate@interface userInfoViewController()<UITextFieldDelegate>2)設定代理(下面的self都是輸入框所在的父view)  textField.delegate = self;3)實現UITextFieldDelegate的三個方法即可：- (BOOL)textFieldShouldReturn:(UITextField *)textField {
    [textField resignFirstResponder];
    return YES;
} /***下面是全屏的一個view, view上有子控制項textField的使用方法***/- (void)textFieldDidBeginEditing:(UITextField *)textField{      CGRect frame = textField.frame;    int offset = frame.origin.y + 32 - (self.frame.size.height - 256.0);//鍵盤高度256, textField高度32   
    NSTimeInterval animationDuration = 0.30f;
    [UIView beginAnimations:@"ResizeForKeyboard" context:nil];
    [UIView setAnimationDuration:animationDuration];
   
    //將視圖的Y座標向上移動offset個單位，以使下面騰出地方用於軟鍵盤的顯示
    if(offset > 0)
        self.frame = CGRectMake(0.0f, -offset, self.frame.size.width, self.frame.size.height);
       [UIView commitAnimations];} - (void)textFieldDidEndEditing:(UITextField *)textField{     self.frame =CGRectMake(0, 0, self.frame.size.width, self.frame.size.height);} /***下面是全屏的一個view, view上有tableView, 每個tableViewCell有子控制項 textField的使用方法***/ - (void)textFieldDidBeginEditing:(UITextField *)textField
{
    CGRect frame = textField.frame;
   
    int index = (int)(textField.tag - 0x1000);

    //30為textField的高度, (index - 1)為前面有幾個cell, 90為tableView的y,即輸入框底部距self.view的高度減去鍵盤的頂部距self.view的高度
    int offset = frame.origin.y + (index - 1) * 50 + 30 + 90 - (self.view.frame.size.height - 256.0);//鍵盤高度256
   
    NSTimeInterval animationDuration = 0.30f;
    [UIView beginAnimations:@"ResizeForKeyboard" context:nil];
    [UIView setAnimationDuration:animationDuration];
   
    //將視圖的Y座標向上移動offset個單位，以使下面騰出地方用於軟鍵盤的顯示
    if(offset > 0)
        self.infoList.frame = CGRectMake(10.0f, 90 - offset, self.infoList.frame.size.width, self.infoList.frame.size.height);
   
    [UIView commitAnimations];
}

- (void)textFieldDidEndEditing:(UITextField *)textField
{
    self.infoList.frame =CGRectMake(10, 90, [UIScreen mainScreen].bounds.size.width - 20, 300);}效果: