我正在尝试使用UIImagePickerController从iPhone照片库中选择一个视频,以便我可以将其上传到服务器。 我能够使用UIImagePickerController选择图像而没有任何错误/崩溃,但在选择时(不是实际点击选择按钮,而只是从库中选择视频)视频我的应用程序崩溃。 它只是在控制台上打印以下行:
设置电影路径:( null)
设置电影路径:/ Users / Mahesh / Library / Application Support / iPhone 模拟器/ 6.1 /媒体/ DCIM / 100APPLE / IMG_0006.mp4
在调用我的应用程序崩溃之前,委托方法 didFinishPickingMediaWithInfo 没有被调用。我只是无法弄清楚究竟是什么导致了这个问题。
以下是我打开iPhone库的代码:
UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
imagePicker.delegate = self;
//imagePicker.mediaTypes = [NSArray arrayWithObjects:@"public.movie", nil];
imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
imagePicker.mediaTypes =[UIImagePickerController availableMediaTypesForSourceType:imagePicker.sourceType];
[self presentViewController:imagePicker animated:YES completion:nil];
- (void) imagePickerController: (UIImagePickerController *) picker didFinishPickingMediaWithInfo: (NSDictionary *) info
{
NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];
if ([mediaType isEqualToString:@"public.image"]){
UIImage *editedImage = (UIImage *)[info objectForKey:@"UIImagePickerControllerOriginalImage"];
// Compressing the image size
CGSize newSize = CGSizeMake(400, 400);
UIGraphicsBeginImageContext(newSize);
[editedImage drawInRect:CGRectMake(0,0,newSize.width,newSize.height)];
// Get the new image from the context
UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext();
// End the context
UIGraphicsEndImageContext();
NSData *data = UIImageJPEGRepresentation(newImage,0.2);//PNGRepresentation(imgView.image);
}
else if ([mediaType isEqualToString:@"public.movie"]){
NSURL *videoURL = [info objectForKey:UIImagePickerControllerMediaURL];
}
[self dismissViewControllerAnimated:YES completion:nil];
}
请帮帮我..谢谢!
答案 0 :(得分:1)
尝试
picker.mediaTypes = @[(NSString *)kUTTypeMovie, (NSString *)kUTTypeImage];
答案 1 :(得分:0)
一切看起来都不错。
您是否在头文件中设置了委托?
我只能建议两件事:
2.当您检查它的图像或视频时,请替换
[mediaType isEqualToString:@"public.image"]
与
[mediaType isEqualToString:(NSString *)kUTTypeImage]
并将视频留给else语句。
您需要导入<MobileCoreServices/UTCoreTypes.h>
才能进行此项检查。
希望这会有所帮助。
修改:您还可以尝试添加imagePicker.allowsEditing = NO;