關(guān)于 webView加載時 出現(xiàn)黑邊問題

解決方法

_WebView.opaque = NO; 
_WebView.backgroundColor = [UIColorclearColor]; **

關(guān)于在tabbar頁面監(jiān)聽跳轉(zhuǎn)

這個方法主要記錄用于點(diǎn)擊某個Tabbar 加一個判斷

如果需要驗(yàn)證登錄才能觀看的頁面 就跳轉(zhuǎn)登錄 已經(jīng)登陸 則不作處理

記一下筆記 嗯

- ( BOOL )tabBarController:( UITabBarController *)tabBarController shouldSelectViewController :( UIViewController *)viewController{
//    AppDelegate *app = (AppDelegate *)[UIApplication sharedApplication].delegate;
    if ([viewController.childViewControllers.firstObject isKindOfClass:[select1Controller class]]) {
        if (![[NSUserDefaults standardUserDefaults] boolForKey:@"isLogin"])
        {
            loginziyeViewController *landingVC = [[loginziyeViewController alloc]init ];
            [(UINavigationController *)tabBarController.selectedViewController pushViewController:landingVC animated:YES];
            return NO;
        }
    }
    return YES ;
} 

關(guān)于點(diǎn)擊某個按鈕 跳轉(zhuǎn)tabbar頁面

AppDelegate *app = (AppDelegate *)[UIApplication sharedApplication].delegate;
        mytabbarController *tab = (mytabbarController *)app.window.rootViewController;
        tab.selectedIndex = 2;