企业官网建设流程全解析

iOS 相机与视频捕获开发全解析

1. 使用相机

在 Xcode 中切换到PhotoViewController.m文件，文件底部之前添加的动作方法此时为空，将其按以下代码进行扩展：

- (IBAction)loadPhotoPicker:(id)sender { UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init]; imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera; // uncomment for front camera // imagePicker.cameraDevice = UIImagePickerControllerCameraDeviceFront; imagePicker.delegate = self; imagePicker.allowsEditing = NO; [self presentModalViewController:imagePicker animated:YES]; }

此方法首先创建了UIImagePickerController类的实例，该类可打开 iOS 中常见的相机界面。这里将sourceType属性设置为后置相机，若要使用前置相机，可取消相应代码的注释。接着，将委托设置为self并