iOS开发——打开手机相册，获取图片

　　1.添加代理UIImagePickerControllerDelegate

　　2.设置点击跳转事件

- (IBAction)picButton:(UIButton *)sender {

NSLog(@"我的相册");

if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]){

//a.初始化相册拾取器

UIImagePickerController *controller = [[UIImagePickerController alloc] init];

//b.设置代理

controller.delegate = self;

//c.设置资源：

/**

UIImagePickerControllerSourceTypePhotoLibrary,相册

UIImagePickerControllerSourceTypeCamera,相机

UIImagePickerControllerSourceTypeSavedPhotosAlbum,照片库

*/

controller.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;

//d.随便给他一个转场动画

controller.modalTransitionStyle=UIModalTransitionStyleFlipHorizontal;

[self presentViewController:controller animated:YES completion:NULL];

}else{

UIAlertView * alert = [[UIAlertView alloc]initWithTitle:@"提示" message:@"设备不支持访问相册，请在设置->隐私->照片中进行设置！" delegate:nil cancelButtonTitle:@"确定" otherButtonTitles:nil, nil];

[alert show];

}

}

　　3.获取图片

#pragma mark-> imagePickerController delegate

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info

{

//a.获取选择的图片

UIImage *image = info[UIImagePickerControllerOriginalImage];

self.imageView.image = image;

}