用UIImagePickerViewController的OverlayView自定义相机界面

本文介绍如何使用UIImagePickerViewController的OverlayView特性,详细阐述设置参数和自定义iOS相机界面的方法,通过Xcode实现。

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首先,设定imagePacker参数

-(void)viewWillAppear:(BOOL)animated{
    
    UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
imagePickerController.delegate = self;

imagePickerController.sourceType = UIImagePickerControllerSourceTypeCamera;
imagePickerController.showsCameraControls = NO;
imagePickerController.navigationBarHidden = YES;
imagePickerController.wantsFullScreenLayout = YES;
imagePickerController.cameraViewTransform = CGAffineTransformScale(imagePickerController.cameraViewTransform, CAMERA_TRANSFORM_X, CAMERA_TRANSFORM_Y);
    cameraViewController = [[CameraOverlayViewController alloc]initWithNibName:@"CameraOverlayViewController" bundle:nil];
    imagePickerController.cameraOverlayView = cameraViewController.view;
    cameraViewController.pickerController = imagePickerController;
    [self presentModalViewController:i
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