- (void) recordVideo: (id) sender
 
{
 
UIImagePickerController *ipc = [[UIImagePickerController alloc] init];
 
ipc.sourceType =  UIImagePickerControllerSourceTypeCamera;
 
ipc.delegate = self;
 
ipc.allowsEditing = YES;
 www.2cto.com
ipc.videoQuality = UIImagePickerControllerQualityTypeMedium;
 
ipc.videoMaximumDuration = 30.0f; // 30 seconds
 
///ipc.mediaTypes = [NSArray arrayWithObject:@"public.movie"];
 
//主要是下邊的兩能數，@"public.movie", @"public.image"  一個是錄像，一個是拍照
 
ipc.mediaTypes = [NSArray arrayWithObjects:@"public.movie", @"public.image", nil];
 
[self presentModalViewController:ipc animated:YES];
 
}

摘自 阿華的博客