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1 つのテキストビューにカスタム UIView クラスがあります。カスタム ビュー クラス フレームは、ビュー コントローラーを 1 つだけ設定します。私の考えでは、テキスト ビューのデリゲート メソッド textviewdidbegining が、キーボードの高さに基づいてテキスト ビューのアニメーションを編集し始めたとき、正しく機能しなかったと思います。次のコードを使用しています

static const CGFloat KEYBOARD_ANIMATION_DURATION = 0.3;
static const CGFloat MINIMUM_SCROLL_FRACTION = 0.2;
static const CGFloat MAXIMUM_SCROLL_FRACTION = 0.2;
static const CGFloat PORTRAIT_KEYBOARD_HEIGHT = 216;
static const CGFloat LANDSCAPE_KEYBOARD_HEIGHT = 162;
- (void)textViewDidBeginEditing:(UITextView *)textView {
CGRect textFieldRect=
[self.window convertRect:textView.bounds fromView:textView];
CGRect viewRect =[self.window convertRect:self.bounds fromView:self];
//So now we have the bounds, we need to calculate the fraction between the top and bottom of the middle section for the text field's midline:
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;
//Clamp this fraction so that the top section is all "0.0" and the bottom section is all "1.0".
if (heightFraction < 0.0)
{
    heightFraction = 0.0;
}
else if (heightFraction > 1.0)
{
    heightFraction = 1.0;
}

//    Now take this fraction and convert it into an amount to scroll by multiplying by the keyboard height for the current screen orientation. Notice the calls to floor so that we only scroll by whole pixel amounts.
UIInterfaceOrientation orientation =
[[UIApplication sharedApplication] statusBarOrientation];
if (orientation == UIInterfaceOrientationPortrait ||orientation == UIInterfaceOrientationPortraitUpsideDown)
{
    animatedDistance = floor(PORTRAIT_KEYBOARD_HEIGHT * heightFraction);
}
else
{
    animatedDistance = floor(LANDSCAPE_KEYBOARD_HEIGHT * heightFraction);
}
//Finally, apply the animation. Note the use of setAnimationBeginsFromCurrentState: — this will allow a smooth transition to new text field if the user taps on another.

CGRect viewFrame = self.frame;
viewFrame.origin.y -= animatedDistance;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDuration:KEYBOARD_ANIMATION_DURATION];
[self setFrame:viewFrame];

[UIView commitAnimations];

 }

-(void)textViewDidEndEditing:(UITextView *)textView{
CGRect viewFrame = self.frame;
viewFrame.origin.y += animatedDistance;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDuration:KEYBOARD_ANIMATION_DURATION];

[self setFrame:viewFrame];
[UIView commitAnimations];
 }

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この問題を解決する方法

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1 に答える 1

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animation を使用して textView を移動し、

ここにコードがあります。あなたに応じてフレームを設定できます

-(void)makeAnimation
{
    yourView.alpha = 0;
    CGRect optionsFrame = yourView.frame;
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:.5];

    CGRect optionsFrame2  = {0,0,320,266};
    yourView.frame  = optionsFrame2;
    yourView.alpha=1;
    [UIView commitAnimations];
}
于 2012-11-29T08:18:54.413 に答える