阻止iOS webview在状态栏下返回

Question

我有一个phonegap / cordova应用程序，当我从应用程序调用ChildBrowser时，退出 childbrowser ，然后返回应用程序，webview进入状态栏 。

关于如何防止webview（在iOS7及更高版本中）进入状态栏，有一百万个答案。这不是问题，因为最初应用程序很好，其webview不与状态栏重叠。

问题仅在退出子浏览器后才会发生。

基本流程： 启动应用程序（一切都很好） - ＆gt;调用ChildBrowser（来自app） - ＆gt;退出ChildBrowser - ＆gt;回到应用程序（问题：状态栏下的webview）。

请询问澄清，请告知。

AppDelegate.m

/*
 Licensed to the Apache Software Foundation (ASF) under one
...
 */

//
//  AppDelegate.m

#import "AppDelegate.h"
#import "MainViewController.h"

#ifdef CORDOVA_FRAMEWORK
    #import <Cordova/CDVPlugin.h>
    #import <Cordova/CDVURLProtocol.h>
#else
    #import "CDVPlugin.h"
    #import "CDVURLProtocol.h"
#endif

@implementation AppDelegate
@synthesize window, viewController;

- (id) init
{   
    /** If you need to do any extra app-specific initialization, you can do it here
     *  -jm
     **/
    NSHTTPCookieStorage *cookieStorage = [NSHTTPCookieStorage sharedHTTPCookieStorage]; 
    [cookieStorage setCookieAcceptPolicy:NSHTTPCookieAcceptPolicyAlways];         
    [CDVURLProtocol registerURLProtocol];

    return [super init];
}

#pragma UIApplicationDelegate implementation

/**
 * This is main kick off after the app inits, the views and Settings are setup here. (preferred - iOS4 and up)
 */
- (BOOL) application:(UIApplication*)application didFinishLaunchingWithOptions:(NSDictionary*)launchOptions
{    
    NSURL* url = [launchOptions objectForKey:UIApplicationLaunchOptionsURLKey];
    NSString* invokeString = nil;

    if (url && [url isKindOfClass:[NSURL class]]) {
        invokeString = [url absoluteString];
        NSLog(@"ios-cordova-childbrowser launchOptions = %@", url);
    }    

    CGRect screenBounds = [[UIScreen mainScreen] bounds];
    self.window = [[[UIWindow alloc] initWithFrame:screenBounds] autorelease];
    self.window.autoresizesSubviews = YES;

    CGRect viewBounds = [[UIScreen mainScreen] applicationFrame];

    self.viewController = [[[MainViewController alloc] init] autorelease];
    self.viewController.useSplashScreen = YES;
    self.viewController.wwwFolderName = @"www";
    self.viewController.startPage = @"index.html";
    self.viewController.invokeString = invokeString;
    self.viewController.view.frame = viewBounds;

    // check whether the current orientation is supported: if it is, keep it, rather than forcing a rotation
    BOOL forceStartupRotation = YES;
    UIDeviceOrientation curDevOrientation = [[UIDevice currentDevice] orientation];

    if (UIDeviceOrientationUnknown == curDevOrientation) {
        // UIDevice isn't firing orientation notifications yet… go look at the status bar
        curDevOrientation = (UIDeviceOrientation)[[UIApplication sharedApplication] statusBarOrientation];
    }

    if (UIDeviceOrientationIsValidInterfaceOrientation(curDevOrientation)) {
        for (NSNumber *orient in self.viewController.supportedOrientations) {
            if ([orient intValue] == curDevOrientation) {
                forceStartupRotation = NO;
                break;
            }
        }
    } 

    if (forceStartupRotation) {
        NSLog(@"supportedOrientations: %@", self.viewController.supportedOrientations);
        // The first item in the supportedOrientations array is the start orientation (guaranteed to be at least Portrait)
        UIInterfaceOrientation newOrient = [[self.viewController.supportedOrientations objectAtIndex:0] intValue];
        NSLog(@"AppDelegate forcing status bar to: %d from: %d", newOrient, curDevOrientation);
        [[UIApplication sharedApplication] setStatusBarOrientation:newOrient];
    }

    NSURLCache *sharedCache = [[NSURLCache alloc] initWithMemoryCapacity:0 diskCapacity:0 diskPath:nil];
    [NSURLCache setSharedURLCache:sharedCache];
    [sharedCache release];

    [self.window addSubview:self.viewController.view];
    [self.window makeKeyAndVisible];

    [[UIApplication sharedApplication]setStatusBarStyle:UIStatusBarStyleBlackTranslucent];

    return YES;
}

// this happens while we are running ( in the background, or from within our own app )
// only valid if ios-cordova-childbrowser-Info.plist specifies a protocol to handle
- (BOOL) application:(UIApplication*)application handleOpenURL:(NSURL*)url 
{
    if (!url) { 
        return NO; 
    }

    // calls into javascript global function 'handleOpenURL'
    NSString* jsString = [NSString stringWithFormat:@"handleOpenURL(\"%@\");", url];
    [self.viewController.webView stringByEvaluatingJavaScriptFromString:jsString];

    // all plugins will get the notification, and their handlers will be called 
    [[NSNotificationCenter defaultCenter] postNotification:[NSNotification notificationWithName:CDVPluginHandleOpenURLNotification object:url]];

    return YES;    
}

- (void) dealloc
{
    [super dealloc];
}

- (void)setOrientation:(NSMutableArray *)arguments
{
    NSLog(@"setting orientation");
    MainViewController *vc = self.viewController;
    [vc setDevideDirection:2];
    //self.viewController.supportedOrientations = arguments;
    //self.viewController.supportedOrientations = arguments;
}
@end