防止键盘遮挡

来源：互联网发布：otc焊接机器人编程ppt 编辑：程序博客网时间：2024/05/22 01:18

offset = originYTF + heightTF + heightKeyboard + view.orginY - view.height;

1，把内容都放在view中，然后判断会不会遮挡到，会的话向上移动一定距离。

#pragma mark UITextFieldDelegate

- (BOOL)textFieldShouldReturn:(UITextField *)textField

{

switch (textField.returnKeyType) {

caseUIReturnKeyNext:

if(textField == _tfPhone){

[_tfCompany becomeFirstResponder];

} else if(textField ==_tfCompany){

[_tfAddress becomeFirstResponder];

}else if(textField ==_tfAddress){

[_tfBrand becomeFirstResponder];

}else if(textField ==_tfBrand){

[_tfWays becomeFirstResponder];

}else if(textField ==_tfWays){

[_tfPerson becomeFirstResponder];

}

break;

caseUIReturnKeyDone:

if(textField == _tfPerson){

NSTimeInterval animationDuration =0.30f;

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

[UIView setAnimationDuration:animationDuration];

CGRect rect =CGRectMake(self.view.frame.origin.x,64.0f,self.view.frame.size.width,self.view.frame.size.height);

self.view.frame = rect;

[UIView commitAnimations];

[textField resignFirstResponder];

[self onSubmit:nil];

}

break;

default:

break;

}

return YES;

}

- (void)textFieldDidBeginEditing:(UITextField *)textField {

NSTimeInterval animationDuration = 0.30f;

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

[UIView setAnimationDuration:animationDuration];

float offset = textField.frame.origin.y + textField.frame.size.height + self.view.frame.origin.y +320 -self.view.window.frame.size.height;

if (offset > 0) {

CGRect rect = CGRectMake(self.view.frame.origin.x,self.view.frame.origin.y - offset,self.view.frame.size.width,self.view.frame.size.height);

self.view.frame = rect;

}

[UIView commitAnimations];

}

2，在view中加一个和view一样大小的UIScrollView，在scrollview的滑动的委托方法中隐藏键盘，其他和上面的一样。

#pragma UIScrollViewDelegate

- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView {

[self.tfPhoneresignFirstResponder];

[self.tfCompanyresignFirstResponder];

[self.tfAddressresignFirstResponder];

[self.tfBrandresignFirstResponder];

[self.tfWaysresignFirstResponder];

[self.tfPersonresignFirstResponder];

NSTimeInterval animationDuration = 0.30f;

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

[UIView setAnimationDuration:animationDuration];

CGRect rect = CGRectMake(self.view.frame.origin.x,64.0f,self.view.frame.size.width,self.view.frame.size.height);

self.view.frame = rect;

[UIView commitAnimations];

}

3，在view中加一个和view一样大小的UIScrollView，然后判断会不会遮挡到，会的话把view向上移动一定距离，并且把scrollview的contensize拉长键盘高度。

4，在view中加一个和view一样大小的UIScrollView，然后判断会不会遮挡到，把scrollview的contensize拉长键盘高度，并把scrollview scroll到一定的位置

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