整个画面上移，使键盘不挡住画面，去除键盘

原创于 2011-07-04 17:00:52 发布 · 695 阅读

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#uiview #float

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本文介绍如何在UITextField开始编辑时使UIScrollView自动上移，并在结束编辑时返回原位。通过实现UITextFieldDelegate方法，配合UIView动画调整UIScrollView的位置，实现良好的用户体验。

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1.UIScrollView *view1;

UITextField *name;

2.添加UITextFieldDelegate

3.-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
    [self.view setCenter:CGPointMake(400,100 )];
//    NSTimeInterval animationDuration=0.30f;
//    [UIView beginAnimations:@"ResizeForKeyboard" context:nil];
//    [UIView setAnimationDuration:animationDuration];
//    float width=self.view.frame.size.width;
//    float height=self.view.frame.size.height;
//    CGRect rect=CGRectMake(0.0f,-80,width,height);//上移80个单位，按实际情况设置
//    self.view.frame=rect;
//    [UIView commitAnimations];
    NSLog(@"   begin editing ");
    return YES;
}

-(void)textFieldDidEndEditing:(UITextField *)textField
{
    [self.view setCenter:CGPointMake(400, 0)];

    NSLog(@"   begin editing ");
}

4.设置name.delegate = self;

//去除键盘

-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{
    [oldPwdTxt resignFirstResponder];
   [newPwdTxt resignFirstResponder];
   [confirmNewPwdTxt resignFirstResponder];
}