利用NSThread实现异步更新UI和下载图片

// // ViewController.h // Thread_Test // // Created by 欧 展飞 on 13-7-10. // Copyright (c) 2013年 yaodd. All rights reserved. // #import <UIKit/UIKit.h> @interface ViewController : UIViewController { int count1; int count2; bool run1; bool run2; } @property (strong, nonatomic) IBOutlet UIButton *threadButton1; @property (strong, nonatomic) IBOutlet UIButton *threadButton2; @property (strong, nonatomic) IBOutlet UILabel *threadLabel1; @property (strong, nonatomic) IBOutlet UILabel *threadLabel2; @property (nonatomic, retain) NSThread *thread1; @property (nonatomic, retain) NSThread *thread2; @property (nonatomic, retain) NSThread *thread3; @property (strong, nonatomic) IBOutlet UIButton *downloadImageButton; @property (strong, nonatomic) IBOutlet UIImageView *imageView; @end