在我的应用程序中，我使用具有 UITextField 和 UITextView 的 UIScrollView，我在 UITextField 中对键盘方向进行了编码。它工作正常，但不适用于 UITextView。在 UITextView 中编辑时，键盘完全隐藏 UITextView。这是我的代码
- (void)textFieldDidBeginEditing:(UITextField *)textField {
[textField setClearButtonMode:UITextFieldViewModeWhileEditing];
CGRect textFieldRect = [self.view.window convertRect:textField.bounds fromView:textField];
CGRect viewRect = [self.view.window convertRect:self.view.bounds fromView:self.view];
CGFloat midline = textFieldRect.origin.y + 0.5 * textFieldRect.size.height;
CGFloat numerator = midline - viewRect.origin.y - MINIMUM_SCROLL_FRACTION * viewRect.size.height;
CGFloat denominator = (MAXIMUM_SCROLL_FRACTION - MINIMUM_SCROLL_FRACTION) * viewRect.size.height;
CGFloat heightFraction = numerator / denominator;
if (heightFraction < 0.0) {
heightFraction = 0.0;
} else if (heightFraction > 1.0) {
heightFraction = 1.0;
}
UIInterfaceOrientation orientation =
[[UIApplication sharedApplication] statusBarOrientation];
if (orientation == UIInterfaceOrientationPortrait ||
orientation == UIInterfaceOrientationPortraitUpsideDown) {
animatedDistance = floor(PORTRAIT_KEYBOARD_HEIGHT * heightFraction);
} else {
animatedDistance = floor(LANDSCAPE_KEYBOARD_HEIGHT * heightFraction);
}
CGRect viewFrame = self.view.frame;
viewFrame.origin.y -= animatedDistance;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDuration:KEYBOARD_ANIMATION_DURATION];
[self.view setFrame:viewFrame];
[UIView commitAnimations];
}
- (void)textFieldDidEndEditing:(UITextField *)textField {
CGRect viewFrame = self.view.frame;
viewFrame.origin.y += animatedDistance;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDuration:KEYBOARD_ANIMATION_DURATION];
[self.view setFrame:viewFrame];
[UIView commitAnimations];
}
谁能帮我解决这个问题吗？
最佳答案
UITextview使用textview的委托(delegate)方法 就像下面这样
-(void)textViewDidBeginEditing:(UITextView *)textView;
还有
-(void)textViewDidEndEditing:(UITextView *)textView;
与textField委托(delegate)方法相同
例如...
-(void)textViewDidBeginEditing:(UITextView *)textView{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.3];
self.view.frame=CGRectMake(0, -100, 320, 460);//just for an example
[UIView commitAnimations];
}
-(void)textViewDidEndEditing:(UITextView *)textView{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.3];
self.view.frame=CGRectMake(0,0, 320, 460);
[UIView commitAnimations];
}
希望这对你有帮助..
:)
关于iphone - UIScrollView 中 UITextView 中的键盘方向，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/12423516/