如何将y轴设置为0,如果屏幕超出了原始屏幕或屏幕下方 - 在iPad
问题描述:
我在学习过程中,我有这个特定的代码,只要我们点击文本框或textview屏幕向上移动,当我们退出键盘屏幕到达其原始位置时,它对于横向和纵向模式均可正常工作如何将y轴设置为0,如果屏幕超出了原始屏幕或屏幕下方 - 在iPad
问题是什么。最初它是在肖像模式下,当我们点击文本框或文本视图时,屏幕正在抬起并显示键盘,现在当我旋转到横向并退出键盘时,屏幕正在向下移动,反之亦然。
- (void)animateTextField:(UITextField*)textField textView:(UITextView *)textView up:(BOOL)up{
int animatedDistance;
int moveUpValue;
if (textField) {
moveUpValue = textField.frame.origin.y+ textField.frame.size.height;
}
else {
moveUpValue = textView.frame.origin.y+ textView.frame.size.height;
}
NSLog(@"moveup%d",moveUpValue);
UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation];
if (orientation == UIInterfaceOrientationPortrait ||
orientation == UIInterfaceOrientationPortraitUpsideDown)
{
if(textField){
animatedDistance = 216-(650-moveUpValue-5);
}
else{
animatedDistance = 216-(850-moveUpValue-5);
}
}
else
{
if(textField){
animatedDistance = 162-(505-moveUpValue-5);
}
else{
animatedDistance = 162-(750-moveUpValue-5);
}
}
NSLog(@"animated%d",animatedDistance);
if(animatedDistance>0)
{
const int movementDistance = animatedDistance;
const float movementDuration = 0.3f;
int movement = (up ? -movementDistance : movementDistance);
NSLog(@"movement portrait%d",movement);
[UIView beginAnimations: nil context: nil];
[UIView setAnimationBeginsFromCurrentState: YES];
[UIView setAnimationDuration: movementDuration];
scrollview.frame = CGRectOffset(scrollview.frame, 0, movement);
[UIView commitAnimations];
}
}
我想现在我该如何解决这个问题,或者怎样才能改变y轴为0
请您做的帮助。 在前提前感谢
答
验证设备方向更改时的animatedDistance设置。
您可以使用方向委托方法按照新方向更新animatedDistance。所以当你辞职键盘时,animatedDistance将按照currentOrientation。 – Ravin
请参考以下链接你的答案.. http://stackoverflow.com/questions/8090063/how-to-manage-application-when-orientation-changes/8090119#8090119 –
我已经使用了,和 - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { //返回YES用于支撑取向 如果(interfaceOrientation == UIInterfaceOrientationPortrait || interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown){ [自portraitFrames]; } else { [self landscapeFrames]; } return YES; } – iYahoo