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copied!<p>Try this~~ I think it is your goal.</p> <pre><code>#import "ViewController.h" @interface ViewController () @property (nonatomic, strong) UIImagePickerController *imagePicker; @end @implementation ViewController @synthesize imagePicker = _imagePicker; - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. } - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:YES]; sleep(2); _imagePicker = [[UIImagePickerController alloc] init]; [_imagePicker setSourceType:UIImagePickerControllerSourceTypeCamera]; [_imagePicker setDelegate:self]; UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(10, 50, 100, 30)]; [button setTitle:@"Library" forState:UIControlStateNormal]; [button setBackgroundColor:[UIColor darkGrayColor]]; [button addTarget:self action:@selector(gotoLibrary:) forControlEvents:UIControlEventTouchUpInside]; [_imagePicker.view addSubview:button]; [self presentViewController:_imagePicker animated:YES completion:nil]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } -(IBAction)gotoLibrary:(id)sender { UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init]; [imagePicker.view setFrame:CGRectMake(0, 80, 320, 350)]; [imagePicker setSourceType:UIImagePickerControllerSourceTypeSavedPhotosAlbum]; [imagePicker setDelegate:self]; [_imagePicker presentViewController:imagePicker animated:YES completion:nil]; } - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { [picker dismissViewControllerAnimated:YES completion:nil]; } - (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker { [picker dismissViewControllerAnimated:YES completion:nil]; } @end </code></pre>

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