[IOS]Photo应用-创新互联

IOS应用开发，如何加载图片库中的Image到view中？下面我们来学习一下吧！

操作步骤：

1.创建一个SingleView的项目，然后启动模拟器，点击模拟器上的浏览器，然后将本地的图片拖放上去，然后点击图片长按，点击saveImage到图片库。

2.修改ViewController

ViewController.h:

#import  @interface DXWViewController : UIViewController @property (retain, nonatomic) IBOutlet UIImageView *imageView; @property (retain, nonatomic) IBOutlet UIButton *Button; @property(retain,nonatomic) UIImage *image; - (IBAction)click:(id)sender; @end

ViewController.m:

#import "DXWViewController.h"  @interface DXWViewController ()  @end  @implementation DXWViewController  - (void)viewDidLoad {     [super viewDidLoad]; 	 }  -(void)viewWillAppear:(BOOL)animated {     self.imageView.image = self.image; } //加载成功 -(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]; } //打开图库获取图片 - (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];     } } @end

运行结果：

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