崩溃iPad照片选择器

Question

根据UIActionSheet的结果，我使用以下函数激活设备摄像机或图像选择器。如果是fromCamera=YES，那么它同时适用于iPhone和iPad。如果是fromCamera=NO，那么它在iPhone上工作，图像选择器就会出现。但是它在iPad上崩溃时有以下错误：UIStatusBarStyleBlackTranslucent在这个设备上不可用。iPad我已经知道iPad不能显示UIStatusBarStyleBlackTranslucent statusBar，但是如何避免这种崩溃呢？

-(void)addPhotoFromCamera:(BOOL)fromCamera{

if(fromCamera){    
    picker.sourceType = UIImagePickerControllerSourceTypeCamera;
}
else{
    picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
}


[self presentModalViewController:picker animated:YES];

}

Answer 1

我怀疑UIImagePicker继承了来自Info.plist文件或当前显示的视图控制器的半透明状态栏。

如果你让应用程序没有半透明的状态栏，会发生什么？

Answer 2

如果在UIImagePickerControllerSourceTypePhotoLibrary上将选择器设置为iPad，则必须(！)将其呈现在弹出的概述中，否则会出现异常。我是这样做的，至少要控制罂粟的大小(我认为标准尺寸太小了)：

-(void)openPhotoPicker
{
    imagePicker = [[UIImagePickerController alloc] init];
    imagePicker.delegate = self;
    imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    imagePicker.navigationBar.opaque = true;

    //put the image picker in its own container controller, to control its size
    UIViewController *containerController = [[UIViewController alloc] init];
    containerController.contentSizeForViewInPopover = rightPane.frame.size;
    [containerController.view addSubview:imagePicker.view];

    //then, put the container controller in the popover
    popover = [[UIPopoverController alloc] initWithContentViewController:containerController];

    //Actually, I would like to do the following, but iOS doesn't let me:
    //[rightPane addSubview:imagePicker.view];

    //So, put the popover over my rightPane. You might want to change the parameters to suit your needs.
    [popover presentPopoverFromRect:CGRectMake(0.0, 0.0, 10.0,0.0) 
                     inView:rightPane
    permittedArrowDirections:UIPopoverArrowDirectionLeft
                   animated:YES];

    //There seems to be some nasty bug because of the added layer (the container controller), so you need to call this now and each time the view rotates (see below)
    [imagePicker.view setFrame:containerController.view.frame];
}

为了对抗旋转错误，我还有以下几点：

- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation {
    if(imagePicker!=nil && rightPane.frame.size.width>0)
        [imagePicker.view setFrame:imagePicker.view.superview.frame];
}

它并不完美，但就我目前的测试目的而言，它是可以的。我考虑写我自己的Imagepicker，因为我不喜欢被强迫使用流行概述.但那是另一回事。

Answer 3

我也有类似的问题，看看我的答案：

https://stackoverflow.com/questions/7677058/uiimagepickercontroller-crash-in-ipad-ios5/7839969#7839969