ios开发调用系统相机（照片／视频）

时间：2025-01-29 22:22:00

调用系统相机使用 UIImagePickerController

首先遵理代理：

@interface HomeViewController ()<UIImagePickerControllerDelegate,UINavigationControllerDelegate>


上代码（拍摄照片）: 

- (IBAction)SystemCamera:(id)sender {
    
    UIImagePickerController *pickerCon = [[UIImagePickerController alloc]init];
     = UIImagePickerControllerSourceTypeCamera;
     = NO;//是否可编辑
     = self;
    [self presentViewController:pickerCon animated:YES completion:nil];
    
}


若是拍摄视频：

- (IBAction)SystemCamera:(id)sender {
    
    UIImagePickerController *pickerCon = [[UIImagePickerController alloc]init];
     = UIImagePickerControllerSourceTypeCamera;
    
     = @[(NSString *)kUTTypeMovie];//设定相机为视频
     = UIImagePickerControllerCameraDeviceRear;//设置相机后摄像头
     = 10;//最长拍摄时间
     = UIImagePickerControllerQualityTypeHigh;//拍摄质量
    
     = NO;//是否可编辑
     = self;
    [self presentViewController:pickerCon animated:YES completion:nil];
    
}

也可将二者合一，只需修改属性： 

 = @[(NSString *)kUTTypeMovie,(NSString *)kUTTypeImage];


关于相机视频的更多设置，可以参考/lc_1581835288/article/details/50471482


注意：使用kUTTypeMovie时，需添加头文件#import<MobileCoreServices/>


使用UIImagePickerController拍摄完成回调方法：

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info{
    
    NSString *mediaType=[info objectForKey:UIImagePickerControllerMediaType];
    if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) {//如果是拍照
        UIImage *image;
        //如果允许编辑则获得编辑后的照片，否则获取原始照片
        if () {
            image=[info objectForKey:UIImagePickerControllerEditedImage];//获取编辑后的照片
        }else{
            image=[info objectForKey:UIImagePickerControllerOriginalImage];//获取原始照片
        }
         = image;
        UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);//保存到相簿
    }else if([mediaType isEqualToString:(NSString *)kUTTypeMovie]){//如果是录制视频
        NSLog(@"video...");
        NSURL *url=[info objectForKey:UIImagePickerControllerMediaURL];//视频路径
        NSString *urlStr=[url path];
        if (UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(urlStr)) {
            //保存视频到相簿，注意也可以使用ALAssetsLibrary来保存
            UISaveVideoAtPathToSavedPhotosAlbum(urlStr, self, @selector(video:didFinishSavingWithError:contextInfo:), nil);//保存视频到相簿
        }
        
    }
    
    [picker dismissViewControllerAnimated:YES completion:nil];
}



相关文章