如何更改ios6和ios7中導航欄的背景顏色？

Question

如何更改iOS6和iOS7中導航欄的背景顏色？我想知道何時使用setBarTintColor:方法以及何時使用backgroundColor更改導航欄的背景顏色。

請告訴我這兩種方法的區別。

另一種方法是在ios6和ios7中更改導航欄的背景顏色。

謝謝！

Answer 1

self.navigationBar.barTintColor = [UIColor blueColor]; 
self.navigationBar.tintColor = [UIColor whiteColor]; 
self.navigationBar.translucent = NO; 

// barTintColor設置背景顏色 // tintColor設置按鈕顏色

Answer 2

試試這個...我refered這link它支持兩種iOS6的和iOS7

// Uncomment to change the background color of navigation bar 
    [[UINavigationBar appearance] setBarTintColor:UIColorFromRGB(0x067AB5)]; 

    // Uncomment to change the color of back button 
    [[UINavigationBar appearance] setTintColor:[UIColor whiteColor]]; 

    // Uncomment to assign a custom backgroung image 
    [[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:@"nav_bg_ios7.png"] forBarMetrics:UIBarMetricsDefault]; 

    // Uncomment to change the back indicator image 

    [[UINavigationBar appearance] setBackIndicatorImage:[UIImage imageNamed:@"back_btn.png"]]; 
    [[UINavigationBar appearance] setBackIndicatorTransitionMaskImage:[UIImage imageNamed:@"back_btn.png"]]; 


    // Uncomment to change the font style of the title 

    NSShadow *shadow = [[NSShadow alloc] init]; 
    shadow.shadowColor = [UIColor colorWithRed:0.0 green:0.0 blue:0.0 alpha:0.8]; 
    shadow.shadowOffset = CGSizeMake(0, 1); 
    [[UINavigationBar appearance] setTitleTextAttributes: [NSDictionary dictionaryWithObjectsAndKeys: 
                  [UIColor colorWithRed:245.0/255.0 green:245.0/255.0 blue:245.0/255.0 alpha:1.0], NSForegroundColorAttributeName, 
                  shadow, NSShadowAttributeName, 
                  [UIFont fontWithName:@"HelveticaNeue-CondensedBlack" size:21.0], NSFontAttributeName, nil]]; 

Answer 3

in ios6

[[UINavigationBar appearance] setBackgroundColor:[UIColor redColor]]; 

在ios7

navigationController.navigationBar.barTintColor = [UIColor greenColor]; 

或

[UINavigationBar appearance] setBarTintColor:[UIColor greenColor]]; 

Answer 4

barTintColor =適用於導航欄背景。這個只適用於iOS 7.對於iOS 6，您可以使用tintColor。

tintColor =適用於導航項目和欄按鈕項目。

Developer Reference

Answer 5

可以使用

NSArray *ver = [[UIDevice currentDevice].systemVersion componentsSeparatedByString:@"."]; 
if ([[ver objectAtIndex:0] intValue] >= 7) { 
    // iOS 7.0 or later 
    self.navigationController.navigationBar.barTintColor = [UIColor redColor]; 
    self.navigationController.navigationBar.translucent = NO; 
}else { 
    // iOS 6.1 or earlier 
    self.navigationController.navigationBar.tintColor = [UIColor redColor]; 
} 

或

if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_6_1) { 
     // iOS 6.1 or earlier 
     self.navigationController.navigationBar.tintColor = [UIColor redColor]; 
    } else { 
     // iOS 7.0 or later  
     self.navigationController.navigationBar.barTintColor = [UIColor redColor]; 
     self.navigationController.navigationBar.translucent = NO; 
    } 
}