Question

我遇到问题，在录制视频后，我点击“使用”按钮将此视频保存到库中，但保存完成后，我无法点击“播放”按钮或“重新启动”按钮。这是我的代码：

  -(void)actionLaunchAppCamera
{
    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
    {
        UIImagePickerController * imagePickerController = [[UIImagePickerController alloc] init];

        if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])  {
            imagePickerController.mediaTypes =  [NSArray arrayWithObject:(NSString *)kUTTypeMovie];
            imagePickerController.sourceType = UIImagePickerControllerSourceTypeCamera;
            imagePickerController.showsCameraControls = YES;
            imagePickerController.allowsEditing = YES;
            imagePickerController.cameraCaptureMode = UIImagePickerControllerCameraCaptureModeVideo;
            imagePickerController.delegate = self;
            imagePickerController.cameraDevice = UIImagePickerControllerCameraDeviceRear;

            [self presentModalViewController:imagePickerController animated:YES];
            //[imagePickerController release];
        }
    }
}

保存拍摄的图像

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
    ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
    NSURL *recordedVideoURL= [info objectForKey:UIImagePickerControllerMediaURL];

    if ([library videoAtPathIsCompatibleWithSavedPhotosAlbum:recordedVideoURL]) {
        [library writeVideoAtPathToSavedPhotosAlbum:recordedVideoURL
                completionBlock:^(NSURL *assetURL, NSError *error){
                    [library assetForURL:assetURL resultBlock:^(ALAsset *asset) {
                        NSDate* date = [asset valueForProperty:ALAssetPropertyDate];
                        NSLog(@"Date Time Modify %@",date);
                        NSDateFormatter* formatter = [[[NSDateFormatter alloc] init] autorelease];
                        [formatter setDateFormat: @"dd.MM.yyyy HH:mm:ss"];
                        NSString* CurrentDateStamp = [formatter stringFromDate:date];

                        NSLog(@"NameVideo %@",asset.defaultRepresentation.filename);
                        NSLog(@"DateModify %@",CurrentDateStamp);
                        NSLog(@"Size: %lld", asset.defaultRepresentation.size);
                    } failureBlock:nil];

 actionSheetUpload= [[UIActionSheet alloc] initWithTitle:@"Do you want to upload this video?" delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:@"Upload" otherButtonTitles:nil];
                actionSheetUpload.actionSheetStyle = UIActionSheetStyleBlackOpaque;
                [actionSheetUpload showInView:[UIApplication sharedApplication].keyWindow];
                [actionSheetUpload release];
                }
         ];
    }
   [library release];
}

有什么想法吗？提前致谢

Answer 1

该代码适用于保存视频，如果你想让它播放。然后你需要使用播放器来播放它。

例如：

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
    NSURL *recordedVideoURL= [info objectForKey:UIImagePickerControllerMediaURL];
.// Save Your Stuff
.
.

     MPMoviePlayerController *movieplayer =[[MPMoviePlayerController alloc] initWithContentURL: recordedVideoURL];    
    [[movieplayer view] setFrame: 
    [self.view bounds]];  
    [self.view addSubview: 
    [movieplayer view]];
    [movieplayer play];
}

编辑：对于上传视频，根据您的代码：声明NSURL *recordedVideoURL;

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
    //NSLog(@"but ind %d", buttonIndex);
    if (buttonIndex == uploadBTnIndex) {
     NSData *videoData = [NSData dataWithContentsOfURL:recordedVideoURL];
   //Use this NSData to upload, So what else your problem to upload using web Services ?
}

Answer 2

也许你不会用- (void)dismissViewControllerAnimated: (BOOL)flag completion: (void (^)(void))completion

解雇选择器

单击UIImagepickercontroller ios中的“使用”按钮后无法点击任何位置

2 个答案: