[IOS]Photo應用

IOS應用開發，如何載入圖片庫中的Image到view中？下面我們來學習一下吧！操作步驟：1.建立一個SingleView的項目，然後啟動模擬器，點擊模擬器上的瀏覽器，然後將本地的圖片拖放上去，然後點擊圖片長按，點擊saveImage到圖片庫。2.修改ViewControllerViewController.h:

 #import <UIKit/UIKit.h>  @interface DXWViewController : UIViewController<UIImagePickerControllerDelegate,UINavigationControllerDelegate>  @property (retain, nonatomic) IBOutlet UIImageView *imageView;  @property (retain, nonatomic) IBOutlet UIButton *Button;  @property(retain,nonatomic) UIImage *image;  - (IBAction)click:(id)sender;  @end  ViewController.m:[plain] view plaincopyprint?#import "DXWViewController.h"    @interface DXWViewController ()    @end    @implementation DXWViewController    - (void)viewDidLoad  {      [super viewDidLoad];        }    -(void)viewWillAppear:(BOOL)animated  {      self.imageView.image = self.image;  }  //載入成功  -(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info  {      self.Image = [info objectForKey:UIImagePickerControllerEditedImage];      [picker dismissViewControllerAnimated:YES completion:nil];  }  //取消  -(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker  {      [picker dismissViewControllerAnimated:YES completion:nil];  }    - (void)dealloc {      [_imageView release];      [_image release];      [_Button release];      [super dealloc];  }  //開啟圖庫擷取圖片  - (IBAction)click:(id)sender {      if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) {          UIImagePickerController *picker = [[UIImagePickerController alloc] init];          picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;          picker.delegate = self;          picker.allowsEditing = YES;          [self presentViewController:picker animated:YES completion:nil];      }  }