iOS 相机工具类(支持照片/视频)

最近优化一些项目，然后就简单的把调用系统相机封装了一下。

1 首先需要申请权限

2 跳转到UIImagePickerController的代码

+(ImagePickerManager *)shareManager{static ImagePickerManager *instance = nil;static dispatch_once_t onceToken;dispatch_once(&onceToken, ^{instance = [[ImagePickerManager alloc] init];});return instance;
}-(void)showImagePickFromController:(UIViewController *)vc sourceType:(UIImagePickerControllerSourceType)sourceType completion:(completionImageBlock)completion{[self showImagePickFromAllowsEditing:NO videoQuality:UIImagePickerControllerQualityTypeLow sourceType:sourceType modalPresentationStyle:UIModalPresentationFullScreen controller:vc isFlash:YES completion:completion];
}-(void)showImagePickFromController:(UIViewController *)vc isEditing:(BOOL)isEditing isFlash:(BOOL)isFlash completion:(completionImageBlock)completion{[self showImagePickFromAllowsEditing:isEditing videoQuality:UIImagePickerControllerQualityTypeLow sourceType:UIImagePickerControllerSourceTypePhotoLibrary modalPresentationStyle:UIModalPresentationFullScreen controller:vc isFlash:isFlash completion:completion];
}-(void)showImagePickFromController:(UIViewController *)vc completion:(completionImageBlock)completion{[self showImagePickFromAllowsEditing:NO videoQuality:UIImagePickerControllerQualityTypeLow sourceType:UIImagePickerControllerSourceTypePhotoLibrary modalPresentationStyle:UIModalPresentationFullScreen controller:vc isFlash:YES completion:completion];
}-(void)showImagePickFromAllowsEditing:(BOOL)allowsEditing videoQuality:(UIImagePickerControllerQualityType)videoQuality sourceType:(UIImagePickerControllerSourceType)sourceType modalPresentationStyle:(UIModalPresentationStyle)modalPresentationStyle controller:(UIViewController *)vc isFlash:(BOOL)isFlash completion:(completionImageBlock)completion{UIImagePickerController *picker = [[UIImagePickerController alloc] init];picker.delegate = self;//可以编辑picker.allowsEditing = allowsEditing;//设置图片质量picker.videoQuality=videoQuality;picker.sourceType = sourceType;picker.modalPresentationStyle = modalPresentationStyle;picker.mediaTypes = @[(NSString *)kUTTypeImage,(NSString *)kUTTypeMovie];if (isFlash&&sourceType==UIImagePickerControllerSourceTypeCamera) {picker.cameraFlashMode = UIImagePickerControllerCameraFlashModeOn;}_vc = vc;_comBlock = [completion copy];[_vc presentViewController:picker animated:YES completion:^{}];
}

-(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{[_vc dismissViewControllerAnimated:YES completion:^{}];
}

4 确定图片之后的回调

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{//主线程等待0.5秒回到根视图dispatch_after(dispatch_time(DISPATCH_TIME_NOW,(int64_t)(0.51 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{if (![_vc.presentedViewController isBeingDismissed]) {[_vc dismissViewControllerAnimated:YES completion:^{}];}});NSString *mediaType = info[UIImagePickerControllerMediaType];if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) {UIImage *editedImage = info[UIImagePickerControllerEditedImage];UIImage *originalImage = info[UIImagePickerControllerOriginalImage];UIImage *needImage = nil;if (originalImage) {needImage = originalImage;}if (editedImage) {needImage = editedImage;}if (_comBlock) {_comBlock(needImage);}}else if([mediaType isEqualToString:(NSString *)kUTTypeMovie]){NSURL *videoURL = info[UIImagePickerControllerMediaURL];if (videoURL) {if (_comBlock) {_comBlock(videoURL);}}}
}

5 使用

/*UIImagePickerControllerSourceTypePhotoLibrary  总相册UIImagePickerControllerSourceTypeCamera  摄像头UIImagePickerControllerSourceTypeSavedPhotosAlbum  时刻*/[[ImagePickerManager shareManager] showImagePickFromController:self completion:^(id imageOrMovie) {if (imageOrMovie) {[self showImage:imageOrMovie];}}];

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