在自动旋转设定帧后，UIButtons不响应触摸 [英] UIButtons don't respond to touch after set frame on autorotate

问题描述

你好我的应用程序我有一些uiButtons作为子视图添加到视图如下图所示。
alt text http://img99.imageshack.us/img99/5244/ portraitc.png

Hello in my app i have some uiButtons added as subviews to a view like in the picture below. alt text http://img99.imageshack.us/img99/5244/portraitc.png

当用户在横向旋转手机时，视图和按钮必须将位置更改为：
替代文字http://img193.imageshack.us/img193/5931/landscapeq.png

when the user rotates the phone in landscape the views and buttons must change position to this: alt text http://img193.imageshack.us/img193/5931/landscapeq.png

最初当视图处于纵向模式时，按钮会响应触摸。如果我倾斜手机按钮移动，一切看起来都像第二张图像一样，按钮响应触摸。如果我将手机倾斜回到纵向模式，按钮向后移动它们看起来不错，但它们不响应触摸。如果我改回横向按钮工作...

initially when the view is in portrait mode the buttons respond to touches. If i tilt the phone the buttons move, everything looks ok like in the second image and the buttons respond to touches. If i tilt the phone back to portrait mode, the buttons move back they look ok but they don't respond to touches. If i change back to landscape the buttons work...

我的按钮是这样创建的：

my buttons are created like this:

nextNewsP = [[UIButton alloc] initWithFrame:CGRectMake([[UIScreen mainScreen] bounds].size.width - 40, 10, 25, 25)];
[nextNewsP setImage:[UIImage newImageFromResource:@"next_arrow.png"] forState:UIControlStateNormal];
[nextNewsP addTarget:self action:@selector(nextNewsAction:) forControlEvents:UIControlEventTouchUpInside];
[nextNewsP setShowsTouchWhenHighlighted:TRUE];
[bottomTools addSubview:nextNewsP];
[nextNewsP release];

previousNewsP = [[UIButton alloc] initWithFrame:CGRectMake([[UIScreen mainScreen] bounds].size.width - 85, 10, 25, 25)];
[previousNewsP setImage:[UIImage newImageFromResource:@"previous_arrow.png"] forState:UIControlStateNormal];
[previousNewsP addTarget:self action:@selector(previousNewsAction:) forControlEvents:UIControlEventTouchUpInside];
[previousNewsP setShowsTouchWhenHighlighted:TRUE];
[bottomTools addSubview:previousNewsP];
[previousNewsP release];

bottomTools是一个视图，也可以添加为这样的子视图：

bottomTools is a view and is added also as a subview like this:

[self.view addSubview:bottomTools];
[bottomTools release];

我的shouldAutorotateToInterfaceOrientation函数如下所示：

and my shouldAutorotateToInterfaceOrientation function looks like this:

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {


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


    if(interfaceOrientation == UIInterfaceOrientationPortrait || interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown)
    {
        NSLog(@"set frames for portrait");
        closeView.frame = CGRectMake([[UIScreen mainScreen] bounds].size.width - 30, 2, 23, 25);
        newsInfo.frame = CGRectMake(10, 10, [[UIScreen mainScreen] bounds].size.width - 10, 22);
        internetActivityIndicator.frame = CGRectMake([[UIScreen mainScreen] bounds].size.width - 55, 5, 18, 18);
        industryLabel.frame = CGRectMake([[UIScreen mainScreen] bounds].size.width/2.0 - [industryTitle sizeWithFont:[UIFont systemFontOfSize:14]].width/2, 3, [industryTitle sizeWithFont:[UIFont systemFontOfSize:14]].width, 22);
        bottomTools.frame = CGRectMake(0, [[UIScreen mainScreen] bounds].size.height-40, [[UIScreen mainScreen] bounds].size.width, 40);
        nextNewsP.frame = CGRectMake([[UIScreen mainScreen] bounds].size.width - 40, 10, 25, 25);
        previousNewsP.frame = CGRectMake([[UIScreen mainScreen] bounds].size.width - 85, 10, 25, 25);
    }
    else
    {
        NSLog(@"set frames for landscape");
        closeView.frame = CGRectMake([[UIScreen mainScreen] bounds].size.height - 30, 2, 23, 25);
        newsInfo.frame = CGRectMake(10, 10, [[UIScreen mainScreen] bounds].size.height - 10, 22);
        internetActivityIndicator.frame = CGRectMake([[UIScreen mainScreen] bounds].size.height - 55, 5, 18, 18);
        industryLabel.frame = CGRectMake([[UIScreen mainScreen] bounds].size.height/2.0 - [industryTitle sizeWithFont:[UIFont systemFontOfSize:14]].width/2, 3, [industryTitle sizeWithFont:[UIFont systemFontOfSize:14]].width, 22);
        bottomTools.frame = CGRectMake(0, [[UIScreen mainScreen] bounds].size.width-40, [[UIScreen mainScreen] bounds].size.height, 40);
        nextNewsP.frame = CGRectMake([[UIScreen mainScreen] bounds].size.height - 40, 10, 25, 25);
        previousNewsP.frame = CGRectMake([[UIScreen mainScreen] bounds].size.height - 85, 10, 25, 25);
    }

    [UIView commitAnimations];

return YES;

}

你曾经有过类似的问题？
提前谢谢你，
Sorin

did you ever had a similar problem? thank you in advance, Sorin

推荐答案

我认为你的问题在你的框架调整中。我的直觉告诉我它与 shouldAutorotateToInterfaceOrientation 中的逻辑有关，因为这发生在旋转实际完成之前。尝试按照这篇文章的方式进行数学运算，看看是否有帮助。

I think your problem is in your frame adjustment. My gut tells me it has something to do with the logic being inside shouldAutorotateToInterfaceOrientation because that happens before the rotation is actually done. Try doing your math the way they do it in this article and see if that helps.

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