Question

我正在尝试使用SWRevealViewController使我的应用程序在设备转向横向时自动显示侧面板，并且我可以在应用程序最初打开但不在此之后执行此操作。基本上我试图使它的行为有点像iPad上的Mail应用程序，除了你仍然可以在横向模式下手动关闭侧面板。我在AppDelegate中尝试了这个但没有成功：

#import "AppDelegate.h"
#import "SWRevealViewController.h"

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    SWRevealViewController *revealViewController = (SWRevealViewController *)self.window.rootViewController;

    UIInterfaceOrientation orientation = [UIApplication sharedApplication].statusBarOrientation;
    if (orientation == UIInterfaceOrientationPortrait) {

    }   
    if (orientation == UIInterfaceOrientationLandscapeLeft || orientation == UIInterfaceOrientationLandscapeRight) {

        if (revealViewController.frontViewPosition == FrontViewPositionLeft) {
            [revealViewController revealToggleAnimated:YES];           
        }
    }
    return YES;
}

有人可以告诉我我应该做什么吗？

Answer 1

我终于明白了。一种更简单的方法是简单地将以下代码添加到前视图控制器：

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    UIInterfaceOrientation interfaceOrientation = [[UIApplication sharedApplication] statusBarOrientation];
    [self openSidePanel:interfaceOrientation];
}

- (void)openSidePanel:(UIInterfaceOrientation)orientation
{
    if (UIInterfaceOrientationIsLandscape(orientation)) {
        [self.revealViewController setFrontViewPosition:FrontViewPositionRight animated:YES];
    }
    else {
        [self.revealViewController setFrontViewPosition:FrontViewPositionLeft animated:YES];
    }

}

- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{
    [self openSidePanel:toInterfaceOrientation];
}

现在，当我将iPad旋转到横向模式时，侧面板会自动打开;当我将其旋转回纵向模式时，它会关闭侧面板。

如何以横向方式自动打开SWRevealViewController侧面板

1 个答案: