IOS主题切换ThemeManager

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1. //当前主题的名字  
2. @property (nonatomic, copy) NSString *themeName;  
3.   
4. //主题图片字典, 主题名字对应的文件路径  
5. @property (nonatomic, copy) NSDictionary *themeDic;  
6.   
7. //主题颜色字典  
8. @property(nonatomic, copy) NSDictionary *fontColorDic;  
9.   
10.   
11.   
12. +(ThemeManager *)shareInstance;  
13.   
14. //根据业务逻辑分析，切换主题只需要切换主题图片和主题颜色，所以提供下面2个方法  
15. -(UIImage *)loadThemeImage:(NSString *)imgName;  
16. -(UIColor *)loadColorWithKeyName:(NSString *)themeKeyName;  
17.   
18. -(void)saveTheme;  

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1.   

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1. #import "ThemeManager.h"  
2.   
3. #define kDefaultThemeName   @"默认主题"  
4. #define kThemeName          @"kThemeName"  
5.   
6. @implementation ThemeManager  
7.   
8. static ThemeManager *instance = nil;  
9.   
10. +(ThemeManager *)shareInstance  
11. {  
12.     static dispatch_once_t onceToken;  
13.     dispatch_once(&onceToken, ^{  
14.         instance = [[ThemeManager alloc] init];  
15.     });  
16.       
17.     return instance;  
18. }  
19.   
20. - (id)init  
21. {  
22.     self = [super init];  
23.     if (self) {  
24.         NSString *themePath = [[NSBundle mainBundle] pathForResource:@"theme" ofType:@"plist"];  
25.         _themeDic = [[NSDictionary dictionaryWithContentsOfFile:themePath] copy];  
26.           
27.         //从 NSUserDefaults 读取主题  
28.         NSString *theme = [[NSUserDefaults standardUserDefaults] objectForKey:kThemeName];  
29.         if (theme) {  
30.             self.themeName = theme;  
31.         }else{  
32.             self.themeName = kDefaultThemeName;  
33.         }  
34.     }  
35.     return self;  
36. }  
37.   
38. - (void)dealloc  
39. {  
40.     [_themeName release];  
41.     [_themeDic release];  
42.     [_fontColorDic release];  
43.     [super dealloc];  
44. }  
45.   
46. -(NSString *)themePath  
47. {  
48.     //1.获取程序包的路径  
49.     NSString *rootPath = [[NSBundle mainBundle] resourcePath];  
50.       
51.     //2.获取当前主题对应的路径  
52.     NSString *themePath = [self.themeDic objectForKey:_themeName];  
53.     return [rootPath stringByAppendingPathComponent:themePath];  
54. }  
55.   
56. //切换主题  
57. -(void)setThemeName:(NSString *)themeName  
58. {  
59.     if (_themeName != themeName) {  
60.         [_themeName release];  
61.         _themeName = [themeName copy];  
62.           
63.           
64.         //读取主题颜色配置文件  
65.         NSString *fontFilePath = [[self themePath] stringByAppendingPathComponent:@"config.plist"];  
66.         self.fontColorDic = [NSDictionary dictionaryWithContentsOfFile:fontFilePath];  
67.     }  
68. }  
69.   
70. -(UIImage *)loadThemeImage:(NSString *)imgName  
71. {  
72.     if (!imgName) {  
73.         return nil;  
74.     }  
75.       
76.     NSString *imgPath = [[self themePath] stringByAppendingPathComponent:imgName];  
77.     return [UIImage imageWithContentsOfFile:imgPath];  
78. }  
79.   
80. -(UIColor *)loadColorWithKeyName:(NSString *)themeKeyName  
81. {  
82.     if (!themeKeyName) {  
83.         return nil;  
84.     }  
85.       
86.     NSDictionary *rgbDic = [_fontColorDic objectForKey:themeKeyName];  
87.     float r = [[rgbDic objectForKey:@"R"] floatValue];  
88.     float g = [[rgbDic objectForKey:@"G"] floatValue];  
89.     float b = [[rgbDic objectForKey:@"B"] floatValue];  
90.       
91.     return [UIColor colorWithRed:r/255 green:g/255 blue:b/255 alpha:1];  
92. }  
93.   
94. //保存主题  
95. -(void)saveTheme  
96. {  
97.     [[NSUserDefaults standardUserDefaults] setObject:_themeName forKey:kThemeName];  
98.     [[NSUserDefaults standardUserDefaults] synchronize];  
99. }  
100.   
101. @end