iOS TextField输入框点击键盘时随着键盘上移

-(void)textFieldDidBeginEditing:(UITextField *)textField

{

CGRect frame = textField.frame;

int offset = frame.origin.y + 70  - (self.view.frame.size.height -216.0);//iPhone键盘高度216，iPad的为352

[UIView beginAnimations:@"ResizeForKeyboard" context:nil];

[UIView setAnimationDuration:0.5f];

//将视图的Y坐标向上移动offset个单位，以使下面腾出地方用于软键盘的显示

if(offset > 0)

self.view.frame = CGRectMake(0.0f, -offset,self.view.frame.size.width, self.view.frame.size.height);

[UIView commitAnimations];

}

//输入框编辑完成以后，将视图恢复到原始状态

-(void)textFieldDidEndEditing:(UITextField *)textField

{

self.view.frame =CGRectMake(0, 0, self.view.frame.size.width,self.view.frame.size.height);

}