[IOS]Photo应用

来源：互联网发布：疯狂java讲义精粹pdf 编辑：程序博客网时间：2024/05/21 03:16

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 <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:

#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：

demo文件：http://download.csdn.net/detail/s10141303/6037575