自定义摄像头在UIImagePickerController中查看

Question

我想知道是否有，我可以在使用UIImagePickerController时自定义摄像头视图的大小。就像当我使用相机选项拾取图像时，它会占用整个屏幕。相反，我希望它只需要一个250乘250的方形窗口。这样屏幕上其余的内容就不会受到影响，并且您将通过摄像头在仅分配给图片的小窗口中看到iPhone背后的视图。

这是可能的。

Answer 1

下面是一个如何自定义Jason Job相机覆盖的例子。

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

或刚做的UIImagePickerController相机覆盖

Answer 2

在.h文件搜索：

#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，在ViewWillAppear方法：

- (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]; 
}