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  • 音频和视频

    1.系统相冊和拍照

    //有系统预置的多媒体參数
    #import <MobileCoreServices/MobileCoreServices.h>

    UIImagePickerController 拍照和获取系统相冊
    推断是否支持
    BOOL ret = [UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera];

    UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];

        //设置资源类型
        imagePicker.sourceType = type;
        //设置代理
        imagePicker.delegate = self;
        //是否同意对相冊 等做兴许处理
        imagePicker.allowsEditing = YES;
        [self presentViewController:imagePicker animated:YES completion:^{
            
        }];



    #pragma mark - UIImagePickerControllerDelegate
    //点击picker上的cancelbutton时。触发的方法
    - (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{
        NSLog(@"cancel!!");
        //实现picker的dismiss
        [picker dismissViewControllerAnimated:YES completion:^{
        }];
    }


    //点击choosebutton触发的方法
    //info 带有选中资源的信息
    - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
        
        //推断选中的资源的类型
        NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];
        //kUTTypeImage 系统预置的图片资源类型
        if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) {
            //证明取出来的是图片
            //通过字典获取选中的图片
            UIImage *image = [info objectForKey:UIImagePickerControllerEditedImage];
            //从相机中取出来的图片占的空间:(1M-2M)左右,须要对图片进行压缩处理,然后在进行兴许操作
            //将原图压缩成50*50的尺寸
            UIImage *smallImage = [[ImageTool shareTool] resizeImageToSize:CGSizeMake(50,50) sizeOfImage:image];
            self.view.backgroundColor = [UIColor colorWithPatternImage:smallImage];
        }
        [picker dismissViewControllerAnimated:YES completion:^{
       
    }];
    }


    2.视频
    MPMoviePlayerViewController
    @"http://hot.vrs.sohu.com/ipad1407291_4596271359934_4618512.m3u8"

    //创建一个带有视频播放器的控制器
            _playController = [[MPMoviePlayerViewController alloc] initWithContentURL:url];
               _playController.moviePlayer.movieSourceType = MPMovieSourceTypeFile;
            //通过模态化的方式呈现
            [self presentViewController:_playController animated:YES completion:^{
          
         
            }];


    3.音频
    AVAudioPlayer协议方法

    #pragma mark - AVAudioPlayerDelegate
    //当成功播放完毕一首歌后,调用此方法
    - (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag{
        NSLog(@"播放结束");
    }
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  • 原文地址:https://www.cnblogs.com/zhchoutai/p/8782799.html
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