横向/纵向大小不同 iOS

Question

我有五个UIButton，我需要设置UIButton 的框架，使其适合Landscape 和portrait 不同的大小。 但是从下面的代码viewDidLoad 它的加载很好但问题是加载堆栈后当我移动到Landscape 到portrait 或portrait 到Landscape 它应该根据@987654330 进行更改@我设置的大小..但这没有发生......它已经重叠，因为之前的按钮已经创建......我需要进行哪些更改，以便在更改视图时..按钮应该正确..不应该重叠。

-(void)viewDidLoad{
 int Height = 200;
    int Yposition = 20;
    for (int k=0; k<5; k++)
    {
 if ([UIApplication sharedApplication].statusBarOrientation== UIInterfaceOrientationLandscapeLeft || [UIApplication sharedApplication].statusBarOrientation  == UIInterfaceOrientationLandscapeRight) {

        UIButton *loPlayButton=[UIButton buttonWithType:UIButtonTypeCustom];
        [loPlayButton addTarget:self action:@selector(PlayButtonAction:) forControlEvents:UIControlEventTouchUpInside];
            //   loPlayButton.tag  = 100+k;
        NSLog(@"tag is %i",loPlayButton.tag);
        loPlayButton.alpha = 1.0;

        UIImage *image=[UIImage imageNamed:@"vid.png"];
        [loPlayButton setBackgroundImage:image forState:UIControlStateNormal];
        loPlayButton.frame=CGRectMake(520, Yposition +(k*Height +170), image.size.width, 30);
        // loPlayButton.tag=3;


        [mScrollView_por addSubview:loPlayButton];
        [mPlayButtonsArray addObject:loPlayButton];
             }



        if ([UIDevice currentDevice].orientation==UIInterfaceOrientationPortrait || [UIDevice currentDevice].orientation == UIInterfaceOrientationPortraitUpsideDown) {


            UIButton *loPlayButton=[UIButton buttonWithType:UIButtonTypeCustom];
            [loPlayButton addTarget:self action:@selector(PlayButtonAction:) forControlEvents:UIControlEventTouchUpInside];
                //   loPlayButton.tag  = 100+k;
            NSLog(@"tag is %i",loPlayButton.tag);
            loPlayButton.alpha = 1.0;

            UIImage *image=[UIImage imageNamed:@"vid.png"];
            [loPlayButton setBackgroundImage:image forState:UIControlStateNormal];
            loPlayButton.frame=CGRectMake(440, Yposition +(k*Height +170), image.size.width, 30);
                // loPlayButton.tag=3;


            [mScrollView_por addSubview:loPlayButton];
            [mPlayButtonsArray addObject:loPlayButton];

        }}}


- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {

 [self viewDidLoad];
}

Answer 1

- (void)viewWillAppear:(BOOL)animated
{
    UIInterfaceOrientation statusBarOrientation = [[UIApplication sharedApplication] statusBarOrientation];
    if(UIInterfaceOrientationIsPortrait(statusBarOrientation))
    {
        [self ArrangeControllsFor_Protrate];
    }
    else
    {
        [self ArrangeControllsFor_LandScape];
    }
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    // Return YES for supported orientations

    switch (interfaceOrientation) {

        case UIInterfaceOrientationPortrait:
        case UIInterfaceOrientationPortraitUpsideDown:
            //[self ArrangeControllsFor_Protrate];
            [self performSelector:@selector(ArrangeControllsFor_Protrate) withObject:Nil afterDelay:0.005f];
            return YES;
            break;
        case UIInterfaceOrientationLandscapeLeft:
        case UIInterfaceOrientationLandscapeRight:
            [self performSelector:@selector(ArrangeControllsFor_LandScape) withObject:Nil afterDelay:0.005f];
            return YES;
            break;
    }
}
- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration{
    //switch ([UIApplication sharedApplication].statusBarOrientation) {
    switch (toInterfaceOrientation) {

        case UIInterfaceOrientationPortrait:
        case UIInterfaceOrientationPortraitUpsideDown:
            //[self ArrangeControllsFor_Protrate];
            [self performSelector:@selector(ArrangeControllsFor_Protrate) withObject:Nil afterDelay:0.005f];
            break;
        case UIInterfaceOrientationLandscapeLeft:
        case UIInterfaceOrientationLandscapeRight:
            [self performSelector:@selector(ArrangeControllsFor_LandScape) withObject:Nil afterDelay:0.005f];
            break;
    }
}
-(NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskAll;
}
-(BOOL)shouldAutorotate
{
    return YES;
}
-(void)ArrangeControllsFor_Protrate
{set frames here.
}
-(void)ArrangeControllsFor_LandScape
{set frames here.
}

Answer 2

Mate 在单独的方法中添加您的旋转代码，并从 viewDidLoad 调用它，并在它改变方向时调用它。就像下面的代码：

-(void)viewDidLoad{
    [self rotateTheView];
}

- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation     duration:(NSTimeInterval)duration {

     [self rotateTheView];
}

- (void) rotateTheView{
    int Height = 200;
    int Yposition = 20;
    for (int k=0; k<5; k++)
    {
      if ([UIApplication sharedApplication].statusBarOrientation== UIInterfaceOrientationLandscapeLeft || [UIApplication sharedApplication].statusBarOrientation  == UIInterfaceOrientationLandscapeRight) {

          UIButton *loPlayButton=[UIButton buttonWithType:UIButtonTypeCustom];
          [loPlayButton addTarget:self action:@selector(PlayButtonAction:)        forControlEvents:UIControlEventTouchUpInside];
          //   loPlayButton.tag  = 100+k;
          NSLog(@"tag is %i",loPlayButton.tag);
          loPlayButton.alpha = 1.0;

         UIImage *image=[UIImage imageNamed:@"vid.png"];
        [loPlayButton setBackgroundImage:image forState:UIControlStateNormal];
         loPlayButton.frame=CGRectMake(520, Yposition +(k*Height +170), image.size.width, 30);
        // loPlayButton.tag=3;


        [mScrollView_por addSubview:loPlayButton];
        [mPlayButtonsArray addObject:loPlayButton];
    }



    if ([UIDevice currentDevice].orientation==UIInterfaceOrientationPortrait || [UIDevice currentDevice].orientation == UIInterfaceOrientationPortraitUpsideDown) {


        UIButton *loPlayButton=[UIButton buttonWithType:UIButtonTypeCustom];
        [loPlayButton addTarget:self action:@selector(PlayButtonAction:) forControlEvents:UIControlEventTouchUpInside];
            //   loPlayButton.tag  = 100+k;
        NSLog(@"tag is %i",loPlayButton.tag);
        loPlayButton.alpha = 1.0;

        UIImage *image=[UIImage imageNamed:@"vid.png"];
        [loPlayButton setBackgroundImage:image forState:UIControlStateNormal];
        loPlayButton.frame=CGRectMake(440, Yposition +(k*Height +170), image.size.width, 30);
            // loPlayButton.tag=3;


        [mScrollView_por addSubview:loPlayButton];
        [mPlayButtonsArray addObject:loPlayButton];

    }
  }
}

Answer 3

您不应该手动调用 viewDidLoad。不要那样做。

 -(void)viewWillAppear:(BOOL)animated
 {

  [self resetFrame:[[UIApplication sharedApplication]statusBarOrientation]]; 

}

  - (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
 {
  [self resetFrame:toInterfaceOrientation];
 }


- (void) resetFrame: (UIInterfaceOrientation)orientation
{


if (UIInterfaceOrientationIsPortrait(orientation))
{
   // For portrait

}
else
{

    // for landscape

}
}

Answer 4

首先，您需要先移除所有 UIButton，然后再从滚动条中添加新的 5 UIButton。

for (UIView *button in mScrollView_por.subviews) {
    if([button isKindOfClass:[UIButton class]]) {
        [button removeFromSuperview];
    }
}