Ios4 使用ALAsset Library从库中选择视频并将该视频转换为数据类型
我正在使用Ios4 使用ALAsset Library从库中选择视频并将该视频转换为数据类型,ios4,Ios4,我正在使用ALAssertlibrary从iPhone库中选择视频,并将该视频文件的属性设置为 (void)selectedAssets:(NSArray*)_assets { NSMutableArray *returnArray = [[[NSMutableArray alloc] init] autorelease]; for(ALAsset *asset in _assets) { NSMutableDictionary *workingDictionary = [[N
ALAssert
library从iPhone库中选择视频,并将该视频文件的属性设置为
(void)selectedAssets:(NSArray*)_assets {
NSMutableArray *returnArray = [[[NSMutableArray alloc] init] autorelease];
for(ALAsset *asset in _assets) {
NSMutableDictionary *workingDictionary = [[NSMutableDictionary alloc] init];
[workingDictionary setObject:[asset valueForProperty:ALAssetPropertyType] forKey:@"UIImagePickerControllerMediaType"];
[workingDictionary setObject:[UIImage imageWithCGImage:[[asset defaultRepresentation] fullScreenImage]] forKey:@"UIImagePickerControllerOriginalImage"];
[workingDictionary setObject:[[asset valueForProperty:ALAssetPropertyURLs] valueForKey:[[[asset valueForProperty:ALAssetPropertyURLs] allKeys] objectAtIndex:0]] forKey:@"UIImagePickerControllerReferenceURL"];
[workingDictionary setObject:[[asset defaultRepresentation]url] forKey:@"UIImagePickerControllerMediaURL"];
[returnArray addObject:workingDictionary];
[workingDictionary release];
}
[self popToRootViewControllerAnimated:NO];
[[self parentViewController] dismissModalViewControllerAnimated:YES];
if([delegate respondsToSelector:@selector(elcImagePickerController:didFinishPickingMediaWithInfo:)]) {
[delegate performSelector:@selector(elcImagePickerController:didFinishPickingMediaWithInfo:) withObject:self withObject:[NSArray arrayWithArray:returnArray]];
}
}
这里我正在设置UIImagePickerControllerMediaURL
,但我认为设置UIImagePickerControllerMediaURL
是不对的
如何为所选视频提供
UIImagePickerControllerMediaURL
属性。并将视频MediaURL
转换为数据类型。使用UIImagePickerControllerReferenceURL而不是UIImagePickerControllerMediaURL使用UIImagePickerControllerReferenceURL而不是UIImagePickerControllerMediaURL