自定义相机覆盖不适用于iPad

Question

我正在尝试使用自定义叠加层。我的项目中有一个PNG图像。边缘有边框，而中心是透明的。在我的代码中，我有：

 self.imagePickerController = [[UIImagePickerController alloc] init];
    [self.imagePickerController setSourceType:UIImagePickerControllerSourceTypeCamera];
    [self.imagePickerController setDelegate:self];
    [self.imagePickerController setCameraDevice:UIImagePickerControllerCameraDeviceRear];
    [self.imagePickerController setShowsCameraControls:NO];

    UIView *myOverlay = [[UIView alloc] initWithFrame:self.view.bounds];
    UIImage *overlayImg = [UIImage imageNamed:@"overlay.png"];
    UIImageView *overlayBg = [[UIImageView alloc] initWithImage:overlayImg];
    [myOverlay addSubview:overlayBg];
    [self.navigationController presentViewController:self.imagePickerController animated:YES completion:nil];

当我按下按钮呈现控制器时，我明白了：

我做错了什么是让相机不占用整个屏幕，还没有添加overlay.png图像？这就是叠加层的样子，只记得白色部分实际上是透明的：

更新

我已更新代码：

self.imagePickerController = [[UIImagePickerController alloc] init];
    [self.imagePickerController setSourceType:UIImagePickerControllerSourceTypeCamera];
    [self.imagePickerController setDelegate:self];
    [self.imagePickerController setCameraDevice:UIImagePickerControllerCameraDeviceRear];
    [self.imagePickerController setShowsCameraControls:NO];

    UIView *myOverlay = [[UIView alloc] initWithFrame:self.view.bounds];
    UIImage *overlayImg = [UIImage imageNamed:@"overlay.png"];
    UIImageView *overlayBg = [[UIImageView alloc] initWithImage:overlayImg];
    [myOverlay addSubview:overlayBg];
    [self.imagePickerController.view addSubview:myOverlay];

    [self.navigationController presentViewController:self.imagePickerController animated:YES completion:nil];

它现在看起来像这样，变得更好，但相机仍占据屏幕的一小部分，并且框架的尺寸不是很合适。

Answer 1

您需要在myOverlay和imagePickerController之间建立联系，因此请尝试将myOverlay添加为imagePickerController.view的子视图。