TabBarController中的UIImagePickerController

问题描述

我正在尝试在UITabBarController内实现imagepickercontroller.到目前为止，很好...

I am trying to implement the imagepickercontroller inside a UITabBarController. So far, so good....

在ViewController中，我启动了imagePickerController，然后将其放置在TabBarViewController tabbar数组中，我实现了"loadview"方法:

In my ViewController, where I initiate the imagePickerController and then place in my TabBarViewController tabbar array, I implemented the "loadview" method:

- (void)loadView{
    self.arController = [[IFAugmentRealityController alloc] initWithViewController:self];
    [self showCamera];
    [self initOverlayController];
    self.picker.delegate = self;
    [self.view addSubview:self.picker.view];

}

- (void)initOverlayController {
    overlay = [[IFAROverlayView alloc] initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH, SCREEN_HEIGTH)];
    overlay.delegate = self;    
}

- (void)showCamera {
    self.picker = [[UIImagePickerController alloc] init];
    self.picker.navigationBarHidden = YES;
    self.picker.toolbarHidden = YES;
    self.picker.sourceType = UIImagePickerControllerSourceTypeCamera;
    self.picker.showsCameraControls = NO;
    self.picker.cameraViewTransform = CGAffineTransformScale(self.picker.cameraViewTransform, CAMERA_TRANSFORM_X, CAMERA_TRANSFORM_Y);
    self.picker.cameraOverlayView = overlay;
}

但是当我运行该应用程序时，该应用程序似乎在loadView方法内创建了一个inifite循环，并且选项卡不再起作用.我错过了什么吗?

But when I run the app, the app seems to create an inifite loop within the loadView method, and the tabbar does not react anymore. Did I miss something out?

我不希望ImagePickerController是全屏显示并使用"presentviewcontroller"方法推送，而是作为其中一个选项卡中的普通"视图加载.

I do not want the ImagePickerController to be fullscreen and pushed with the "presentviewcontroller" method, but loaded as a "normal" view inside one of the tabs.

所以我的问题是:

1)我应该使用"viewdidload"而不是"loadview"吗?因为使用viewdidload似乎可以正常工作

1) should I rather use "viewdidload" instead of "loadview"? Because with viewdidload it seems to be working

2)但是，当使用viewdidload时，我无法固定应在其中显示图像选择器的框架.视频屏幕下方和tabBar上方始终有一个黑条.

2) But when using viewdidload I can't fix the frame in which the imagepicker should be shown. There is always a black bar under the video screen and above the tabBar.

非常感谢！

推荐答案

我认为在将-addSubview消息发送给self.view之前，先使用self.view = [[UIView alloc] initWithFrame:someFrame];之类的视图设置自身，这时就会出现无限循环，因为，从技术上讲，在loadView中，您应该设置视图控制器的视图.

I think the infinite loop is coming in when you send the -addSubview message to self.view before setting the view itself with something like self.view = [[UIView alloc] initWithFrame:someFrame]; because, technically, while in loadView you're supposed to be setting the view controller's view.

如果self.view是nil，并且您尝试向其发送消息，则会再次调用-loadView，从而导致无限循环.

If self.view is nil and you try to send it messages, -loadView is called again, resulting in the infinite loop.

这篇关于TabBarController中的UIImagePickerController的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！