iOS 扫一扫功能实现概要1.doc

iOS 扫一扫功能实现 下面贴上代码： AppDelegate.m： [objc] view plain copy 在CODE上查看代码片派生到我的代码片 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; self.window.rootViewController = [[UINavigationController alloc] initWithRootViewController:[[ViewController alloc] init]]; self.window.backgroundColor = [UIColor whiteColor]; [self.window makeKeyAndVisible]; return YES; } ViewController： [objc] view plain copy 在CODE上查看代码片派生到我的代码片 #import UIKit/UIKit.h @interface ViewController : UIViewController @end /*** ---------------分割线--------------- ***/ #import ViewController.h #import HWScanViewController.h @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; self.view.backgroundColor = [UIColor whiteColor]; //创建控件 [self creatControl]; } - (void)creatControl { //扫一扫按钮 UIButton *scanBtn = [[UIButton alloc] initWithFrame:CGRectMake(100, 100, 100, 44)]; scanBtn.backgroundColor = [UIColor orangeColor]; [scanBtn setTitle:@扫一扫 forState:UIControlStateNormal]; [scanBtn addTarget:self action:@selector(scanBtnOnClick) forControlEvents:UIControlEventTouchUpInside]; [self.view addSubview:scanBtn]; } - (void)scanBtnOnClick { HWScanViewController *vc = [[HWScanViewController alloc] init]; [self.navigationController pushViewController:vc animated:YES]; } @end HWScanViewController： [objc] view plain copy 在CODE上查看代码片派生到我的代码片 #import UIKit/UIKit.h @interface HWScanViewController : UIViewController @end /*** ---------------分割线--------------- ***/ #import HWScanViewController.h #import AVFoundation/AVFoundation.h #define KMainW [UIScreen mainScreen].bounds.size.width #define KMainH [UIScreen mainScreen].bounds.size.height @interface HWScanViewCo