设置工具栏的颜色和导航栏后退按钮

问题描述：

我想设置工具栏的背景色iOS7：我设置的颜色与此：设置工具栏的颜色和导航栏后退按钮

toolBar= [[UIToolbar alloc] initWithFrame:CGRectMake(0,0,320,40)]; 
[toolBar setBarStyle:UIBarStyleBlack]; 
toolBar.items = [[NSArray alloc] initWithObjects:barButtonDone,flexible,barButtonOther,nil]; 
toolBar.tintColor=[UIColor colorWithPatternImage:[UIImage imageNamed:@"dropdownbar"]];

但背景图像不显示。

enter image description here

而且我想知道这是什么一样：

NSArray *ver = [[UIDevice currentDevice].systemVersion componentsSeparatedByString:@"."]; 
if ([[ver objectAtIndex:0] intValue] >= 7) { 
    self.navigationController.navigationBar.barTintColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"top_bar"]]; 
    self.navigationController.navigationBar.translucent = NO; 
} else { 
    self.navigationController.navigationBar.tintColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"top_bar"]]; 

}

钕怎么改回默认的导航栏上的按钮颜色：

enter image description here

工具栏或导航栏他们是两个完全不同的事情。导航栏在顶部通常位于底部。 – Popeye

@Popeye我知道那..但我想知道那代码会做什么？ – vivek

我其实在谈论你的形象。如果这是在顶部，它应该是一个导航栏而不是一个工具栏。 – Popeye

答

在iOS中7，你必须使用toolbar.barTintColor设置彩色，toolbar.tintColor将设置工具栏里面的barButtons的颜色。

最后一段代码测试应用程序是否在iOS 7上运行，如果使用的是barTintColor，如果不是，则会使用tintColor。

要改变后退按钮，你可以通过设定的导航栏

我做了这个，然后我做了，其他按钮消失了; – vivek

我使用'tintColor'和'barTintColor'工具栏上的颜色相同，您的按钮和工具栏将具有相同的颜色。 – KIDdAe

不，不，你是对的...它的工作...错误我已经删除线添加按钮到工具栏... :) – vivek

答

你c下面的代码使用...

[toolBar setBackgroundImage:toolBarIMG forToolbarPosition:0 barMetrics:0];

答

此代码基本上确定了iOS是什么tintColor，并选择正确的方法调用来设置的导航栏的tintColor这样做。请参阅下面的代码中的评论

/* This is basically getting the systemVersion of the device so 7.0.1 - as this is returned 
    as an NSString the user is separating this string based on the string "." which will 
    place each string into the array. so you will have 3 objects in this array of "7", "0", "1" 
*/ 
NSArray *ver = [[UIDevice currentDevice].systemVersion componentsSeparatedByString:@"."]; 
/* Once we have separated this string into the array we are getting the first object in that array 
    so index `0` which will return a string at which point we are converting the string "7" to 
    an intValue and comparing it to the int 7. So if that value is 7 or greater return TRUE 
*/ 
if ([[ver objectAtIndex:0] intValue] >= 7) { 
    /* The value was TRUE so lets use the iOS 7 way of setting the tintColor. 
     We do this by setting barTintColor for the navigationBar and because 
     in iOS 7 the navigationBar can be translucent - by default this is YES 
     but because we are setting to a color we want we need to set this to NO 
     because we don't want to have it translucent. 
    */ 
    self.navigationController.navigationBar.barTintColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"top_bar"]]; 
    self.navigationController.navigationBar.translucent = NO; 
} else { 
    /* 
    If all fails in the if statements conditional check we must be on something 
    that is below iOS 7 so use the old way of things and just set the tintColor 
    */ 
    self.navigationController.navigationBar.tintColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"top_bar"]]; 
}

只是让你知道这是行不通的。如果你要使用它这个变化：

if (floor(NSFoundationVersionNumber) => NSFoundationVersionNumber_iOS_7_0) { 
    self.navigationController.navigationBar.barTintColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"top_bar"]]; 
    self.navigationController.navigationBar.translucent = NO; 
} else { 
    self.navigationController.navigationBar.tintColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"top_bar"]]; 
}

这是因为if ([[ver objectAtIndex:0] intValue] >= 7)将返回FALSE即使iOS的7

要设置工具栏，你可以用同样的方法，但替换：

self.navigationController.navigationBar.barTintColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"top_bar"]]; 
self.navigationController.navigationBar.translucent = NO;

与

[toolbar setBarTintColor:[UIColor colorWithPatternImage:[UIImage imageNamed:@"dropdownbar"]]]; 
[toolbar setTranslucent:NO];

和替换

self.navigationController.navigationBar.tintColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"top_bar"]];

与

[toolbar setTintColor:[UIColor colorWithPatternImage:[UIImage imageNamed:@"dropdownbar"]]];

很好...如果我只针对我的应用程序ios7然后没有必要检查操作系统版本正确...直接与bartintcolor？？ – vivek

如果你只支持iOS 7+并且你的部署目标是iOS 7，那么这是正确的，那么就不需要'if语句'，因为else部分永远不会达到一百万年。所以你可以设置barTintColor： – Popeye

答

//How to set color of *all* navigationbars and toolbars in an app in Swift 2.0 

    @UIApplicationMain 
    class AppDelegate: UIResponder, UIApplicationDelegate { 

     func application(application: UIApplication, didFinishLaunchingWithOptionslaunchOptions: [NSObject: AnyObject]?) -> Bool { 
     UINavigationBar.appearance().tintColor = UIColor.greenColor(); // All back button in the app are now green. 
     UIToolbar.appearance().tintColor = UIColor.orangeColor(); // All toolBar icons in the app are now orange. 

     //........ 
     let returnCode: Bool = getAppSpecificReturnCode(); 



     return returnCode 
    } 


    }

设置工具栏的颜色和导航栏后退按钮

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