在UIImagePickerController中自定义相机视图

Question

我想知道有没有，我可以自定义相机视图的大小，同时使用UIImagePickerController。就像当我使用相机选项来拍摄图像时，它占据了整个屏幕。相反，我希望它只需要一个250 * 250的正方形窗口。这样屏幕的其余部分就不会受到影响，你可以通过相机在指定的小窗口中看到iPhone后面的画面。

有没有可能。

Answer 1

下面是一个关于如何自定义Jason Job的相机覆盖的示例。

http://www.musicalgeometry.com/?p=821

或者只是搜索UIImagePickerController摄像头覆盖

Answer 2

在.h文件中：

#define CAMERA_TRANSFORM_X 0.70
#define CAMERA_TRANSFORM_Y 0.50 

 // For screen dimensions:
   #define SCREEN_WIDTH  100
   #define SCREEN_HEIGTH 100

在.m文件中，在ViewWillAppear方法中：

- (void) viewDidAppear:(BOOL)animated 
{
  OverlayView *overlay = [[OverlayView alloc] initWithFrame:CGRectMake(0, 0,   SCREEN_WIDTH, SCREEN_HEIGTH)];

// Create a new image picker instance:
UIImagePickerController *picker = [[UIImagePickerController alloc] init];

// Set the image picker source:
picker.sourceType = UIImagePickerControllerSourceTypeCamera;

// Hide the controls:
picker.showsCameraControls = NO;
picker.navigationBarHidden = NO;


//[[[self captureManager] previewLayer] setBounds:CGRectMake(0,0,320,480)]; // Make camera view full screen:
picker.wantsFullScreenLayout = normal;
picker.cameraOverlayView =CGRectMinXEdge;

picker.cameraViewTransform = CGAffineTransformScale(picker.cameraViewTransform, CAMERA_TRANSFORM_X, CAMERA_TRANSFORM_Y);
//picker.cameraViewTransform=CGAffineTransformMakeTranslation(CAMERA_TRANSFORM_X, CAMERA_TRANSFORM_Y);
// Insert the overlay:
//picker.cameraOverlayView = overlay;

// Show the picker:
[self presentModalViewController:picker animated:YES];  
[picker release];

[super viewDidAppear:YES];
}