设置导航栏主题＋iOS6 & iOS7 适配

 1 /**
 2  *  设置导航栏按钮主题
 3  */
 4 + (void)setupBarButtonItemTheme
 5 {
 6     UIBarButtonItem *item = [UIBarButtonItem appearance];
 7     
 8     // 设置背景
 9     if (!iOS7) {
10         [item setBackgroundImage:[UIImage imageWithName:@"navigationbar_button_background"] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
11         [item setBackgroundImage:[UIImage imageWithName:@"navigationbar_button_background_pushed"] forState:UIControlStateHighlighted barMetrics:UIBarMetricsDefault];
12         [item setBackgroundImage:[UIImage imageWithName:@"navigationbar_button_background_disable"] forState:UIControlStateDisabled barMetrics:UIBarMetricsDefault];
13     }
14     
15     // 设置文字属性
16     NSMutableDictionary *textAttrs = [NSMutableDictionary dictionary];
17     textAttrs[UITextAttributeTextColor] = iOS7 ? [UIColor orangeColor] : [UIColor grayColor];
18     textAttrs[UITextAttributeTextShadowOffset] = [NSValue valueWithUIOffset:UIOffsetZero];
19     textAttrs[UITextAttributeFont] = [UIFont systemFontOfSize:iOS7 ? 14 : 12];
20     [item setTitleTextAttributes:textAttrs forState:UIControlStateNormal];
21     [item setTitleTextAttributes:textAttrs forState:UIControlStateHighlighted];
22 }
23 
24 /**
25  *  设置导航栏主题
26  */
27 + (void)setupNavBarTheme
28 {
29     // 取出appearance对象
30     UINavigationBar *navBar = [UINavigationBar appearance];
31     
32     // 设置背景
33     if (!iOS7) {
34         [navBar setBackgroundImage:[UIImage imageWithName:@"navigationbar_background"] forBarMetrics:UIBarMetricsDefault];
35         [UIApplication sharedApplication].statusBarStyle = UIStatusBarStyleBlackOpaque;
36     }
37     
38     // 设置标题属性
39     NSMutableDictionary *textAttrs = [NSMutableDictionary dictionary];
40     textAttrs[UITextAttributeTextColor] = [UIColor blackColor];
41     textAttrs[UITextAttributeTextShadowOffset] = [NSValue valueWithUIOffset:UIOffsetZero];
42     textAttrs[UITextAttributeFont] = [UIFont boldSystemFontOfSize:19];
43     [navBar setTitleTextAttributes:textAttrs];
44 }