使用自定义 AlertView - 窗口层次结构？

Question

所以我一直在构建一个使用我在 another question 中找到的自定义 AlertView 的应用程序。

完整的代码可以在Github找到。

具体来说，CustomiOSAlertView.m 可以找到HERE。

这就是我创建视图的方式，我调用它来显示警报表单IBAction 附加到 UIStoryboard 中的 UIImage，这是操作：

- (IBAction)Button1:(id)sender {
    NSString *name      = @"info";
    NSString *content   = @"info 2";
    NSString *info      = @"more info";
    NSString *imageLink = @"image.png";

    NSString *stringContent = [NSString stringWithFormat:@" %@\n\n %@\n\n %@", name, content, info];
    [self ConstructAlertContent:imageLink :stringContent];
}

调用它（使用上面附加的 CustomiOSAlertView.m）：

-(void)ConstructAlertContent:(NSString *)imgStr :(NSString *)str{
    NSString *imageLink = imgStr;
    NSString *stringContent = str;

    // Here we need to pass a full frame
    CustomIOSAlertView *alertView = [[CustomIOSAlertView alloc] init];

    // Add some custom content to the alert view with above method createDemoView()
    [alertView setContainerView:[self createDemoView:imageLink : stringContent]];

    // Modify the parameters
    [alertView setButtonTitles:[NSMutableArray arrayWithObjects:@"Done", nil]];
    [alertView setDelegate:self]; //add to .h: <CustomIOSAlertViewDelegate>

    // You may use a Block, rather than a delegate.
    [alertView setOnButtonTouchUpInside:^(CustomIOSAlertView *alertView, int buttonIndex) {
        //NSLog(@"Block: Button at position %d is clicked on alertView %d.", buttonIndex, (int)[alertView tag]);
        [alertView close];
    }];

    //allow alert to move with phone motion
    [alertView setUseMotionEffects:true];

    //set alert alpha to slightly transparent
    [alertView setAlpha:0.94];

    // And launch the dialog
    [alertView show];
}

并像这样创建视图：

- (UIView *)createDemoView:(NSString *)imgStr :(NSString *)str
{
    UIView *demoView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 290, 300)];

    //include image
    UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(70, 10, 150, 180)];
    [imageView setImage:[UIImage imageNamed:imgStr]];
    [demoView addSubview:imageView];

    //... with additional subviews

    return demoView;
}

在我创建单独的 UIStoryboard 并在 AppDelegate.m 中使用以下代码为特定设备实例化正确的故事板之前，它一直运行良好：

if (iOSScreenSize.height == 480){ //iPhone 3.5"

    //instantiate storyboard for iPhone4S
    UIStoryboard *iPhone35Storyboard = [UIStoryboard storyboardWithName:@"iPhone35" bundle:nil];
    UIViewController *initialViewcontroller = [iPhone35Storyboard instantiateInitialViewController];
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    self.window.rootViewController = initialViewcontroller;
    [self.window makeKeyAndVisible];
}

if (iOSScreenSize.height == 568){ //iPhone 4"

    //instantiate storyboard for iPhone 5S
    UIStoryboard *iPhone4Storyboard = [UIStoryboard storyboardWithName:@"iPhone4" bundle:nil];
    UIViewController *initialViewcontroller = [iPhone4Storyboard instantiateInitialViewController];
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    self.window.rootViewController = initialViewcontroller;
    [self.window makeKeyAndVisible];
}

if (iOSScreenSize.height == 667){ //iPhone 4.7"

    //instantiate storyboard for iPhone 6
    UIStoryboard *iPhone47Storyboard = [UIStoryboard storyboardWithName:@"iPhone47" bundle:nil];
    UIViewController *initialViewcontroller = [iPhone47Storyboard instantiateInitialViewController];
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    self.window.rootViewController = initialViewcontroller;
    [self.window makeKeyAndVisible];
}

if (iOSScreenSize.height == 736){ //iPhone 5.5"

    //instantiate storyboard for iPhone 6+
    UIStoryboard *iPhone55Storyboard = [UIStoryboard storyboardWithName:@"iPhone55" bundle:nil];
    UIViewController *initialViewcontroller = [iPhone55Storyboard instantiateInitialViewController];
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    self.window.rootViewController = initialViewcontroller;
    [self.window makeKeyAndVisible];
}

现在，当我在（模拟器和设备上）测试应用程序时，它会加载正确的故事板和内容，但不显示自定义的 AlertView...只要我注释掉上面的代码（以实例化特定的故事板)，然后运行应用程序，自定义 AlertViews 再次工作...

我猜这与视图层次结构有关？即使像我使用上面的代码那样手动实例化故事板，是否也可以让它出现？

编辑

请确保，使用下面 Rob 的答案，您没有在“主界面”的下拉选项卡菜单中选择故事板...将其留空，对我有用，现在从 AppDelegate 实例化故事板和调用时还会在 UIStoryboard 顶部创建一个 AlertView。

Answer 1

在我看来，您是在 实例化情节提要之前调用 AppDelegate 中的自定义视图方法。

您应该先实例化情节提要，然后从正确情节提要的控制器中调用该方法。

例如：

AppDelegate：

if (iOSScreenSize.height == 667){ //iPhone 4.7"

    //instantiate storyboard for iPhone 6
    UIStoryboard *iPhone47Storyboard = [UIStoryboard storyboardWithName:@"iPhone47" bundle:nil];
    UIViewController *initialViewcontroller = [iPhone47Storyboard instantiateInitialViewController];
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    self.window.rootViewController = initialViewcontroller;
    [self.window makeKeyAndVisible];
}

InitialViewController.m

-(void)viewDidAppear(Bool animated){

  [super animated:animated];

  [self createDemoView:"myImage.png" str:"Custom Alert"]'

}

编辑：在此处添加示例代码：https://github.com/robcontreras/CustomAlert