关于ios横竖屏显示不正常的一个Bug修复

修改一个旧项目的时候，设置iphone是竖屏、ipad横屏显示，

1.修改了这里

2 ipad设置了这

#pragma mark    ————  ipad

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation

{

    return (interfaceOrientation ==UIInterfaceOrientationLandscapeLeft || interfaceOrientation ==UIInterfaceOrientationLandscapeRight);//UIInterfaceOrientationPortrait

}

- (NSUInteger)supportedInterfaceOrientations {

    NSLog(@"让我旋转哪些方向");

    returnUIInterfaceOrientationMaskLandscape;

}

- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation{

    if (fromInterfaceOrientation == UIInterfaceOrientationLandscapeLeft) {

        [AppVars standardVars].InterfaceOrientation=@"left";

    }else {

        if (fromInterfaceOrientation == UIInterfaceOrientationLandscapeRight) {

            [AppVars standardVars].InterfaceOrientation =@"right";

        }

    }

}

屁作用不起！

最后原因是

        rootViewController = [[RootViewControlleralloc] initWithNibName:nilbundle:nil];

        navigation = [[UINavigationControlleralloc]initWithRootViewController:rootViewController];

//        [self.window addSubview:navigation.view];  //旧版

        self.window.rootViewController =navigation;  // 改成 这样   OK 搞定

这个addSubview: 坑了好几次了  这次记下啦