iOS开发-实现获取下载主题配置动态切换主题

iOS开发-实现获取下载主题配置动态切换主题

iOS开发-实现获取下载主题配置更切换主题，主要是通过请求服务端配置的主题配置、下载主题、解压保存到本地。通知界面获取对应的图片及颜色等。

比如新年主题风格，常见的背景显示红色氛围图片、tabbar显示新年风格的按钮样式、导航条显示红色样式等。
在这里插入图片描述

一、主题Json对应的model

这里使用JsonModel将主题转成model

model代码如下

SDAppThemeConfigViewModel.h

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>/**Navigation主题样式*/
@interface SDAppThemeConfigNavViewModel : NSObject@property (nonatomic, strong) NSString *backgroundColor;
@property (nonatomic, strong) NSString *backgroundImage;@property (nonatomic, strong) UIImage *t_backgroundImage;@property (nonatomic, strong) NSString *btnImageColor;
@property (nonatomic, strong) NSString *btnTitleColor;
@property (nonatomic, strong) NSString *navTitleColor;@property (nonatomic, strong) NSString *showLine;
@property (nonatomic, strong) NSString *lineColor;@end/**单个tab按钮样式*/
@interface SDAppThemeConfigTabItemViewModel : NSObject@property (nonatomic, strong) NSString *title;
@property (nonatomic, strong) NSString *titleColor;
@property (nonatomic, strong) NSString *selectedTitleColor;
@property (nonatomic, strong) NSString *icon;
@property (nonatomic, strong) NSString *selectedIcon;@property (nonatomic, strong) UIImage *t_icon;
@property (nonatomic, strong) UIImage *t_selectedIcon;@end/**tabbar样式*/
@interface SDAppThemeConfigTabViewModel : NSObject@property (nonatomic, strong) NSString *backgroundColor;
@property (nonatomic, strong) NSString *backgroundImage;
@property (nonatomic, strong) NSString *showLine;
@property (nonatomic, strong) NSString *lineColor;
@property (nonatomic, strong) NSString *badgeBgColor;@property (nonatomic, strong) UIImage *t_backgroundImage;@property (nonatomic, strong) SDAppThemeConfigTabItemViewModel *lianlian;
@property (nonatomic, strong) SDAppThemeConfigTabItemViewModel *guangguang;
@property (nonatomic, strong) SDAppThemeConfigTabItemViewModel *message;
@property (nonatomic, strong) SDAppThemeConfigTabItemViewModel *shop;
@property (nonatomic, strong) SDAppThemeConfigTabItemViewModel *mine;@end/**将本地的主题config.json转成viewmodel*/
@interface SDAppThemeConfigViewModel : NSObject@property (nonatomic, strong) NSString *globalColor;
@property (nonatomic, strong) NSString *globalImage;
@property (nonatomic, strong) SDAppThemeConfigNavViewModel *navigation;
@property (nonatomic, strong) SDAppThemeConfigTabViewModel *tabbar;@property (nonatomic, strong) UIImage *t_globalImage;+ (SDAppThemeConfigViewModel *)themeViewModel:(NSString *)themeJson;+ (SDAppThemeConfigViewModel *)defautThemeViewModel;@end

SDAppThemeConfigViewModel.m

#import "SDAppThemeConfigViewModel.h"
#import <NSObject+YYModel.h>/**Navigation主题样式*/
@implementation SDAppThemeConfigNavViewModel@end/**单个tab按钮样式*/
@implementation SDAppThemeConfigTabItemViewModel@end/**tabbar样式*/
@implementation SDAppThemeConfigTabViewModel@end/**将本地的主题config.json转成viewmodel*/
@implementation SDAppThemeConfigViewModel+ (SDAppThemeConfigViewModel *)themeViewModel:(NSString *)themeJson {return [SDAppThemeConfigViewModel modelWithJSON:themeJson];
}+ (SDAppThemeConfigViewModel *)defautThemeViewModel {SDAppThemeConfigViewModel *viewModel = [[SDAppThemeConfigViewModel alloc] init];SDAppThemeConfigNavViewModel *navConfigViewModel = [[SDAppThemeConfigNavViewModel alloc] init];navConfigViewModel.backgroundColor = @"171013";navConfigViewModel.btnImageColor = @"ffffff";navConfigViewModel.btnTitleColor = @"ffffff";navConfigViewModel.navTitleColor = @"ffffff";viewModel.navigation = navConfigViewModel;return viewModel;
}@end

二、实现下载解压主题

2.1 AFNetworking下载

下载使用的是AFNetworking下载功能。AFNetworking是一个轻量级的iOS网络通信类库。

下载代码：

#pragma mark - Http download
/**请求下载@param aUrl aurl@param aSavePath aSavePath@param aFileName aFileName@param aTag aTag@param downloadprogress downloadprogress@param success success@param failure failure*/
- (void)downloadFileURL:(NSString *)aUrlsavePath:(NSString *)aSavePathfileName:(NSString *)aFileNametag:(NSInteger)aTagdownloadProgress:(void(^)(CGFloat progress))downloadprogresssuccess:(void(^)(NSURLResponse *response,NSString *filePath))successfailure:(void(^)(HttpError * e))failure {NSFileManager *fileManger = [NSFileManager defaultManager];if ([fileManger fileExistsAtPath:[aSavePath stringByAppendingPathComponent:aFileName]]) {//文件存在return;}//2.确定请求的URL地址NSString *requestUrl = [self requestUrlWithPath:aUrl clientType:HttpClientTypeWithOut];NSMutableURLRequest *request = [self.httpManager.requestSerializer requestWithMethod:@"GET" URLString:requestUrl parameters:nil error:nil];__block NSURLSessionDownloadTask *downloadTask = nil;downloadTask = [self.httpManager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull downloadProgress) {dispatch_async(dispatch_get_main_queue(), ^{downloadprogress(1.0 * downloadProgress.completedUnitCount / downloadProgress.totalUnitCount);});} destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) {return [NSURL fileURLWithPath:aSavePath];} completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nullable filePath, NSError * _Nullable error) {if(error == nil) {success(response,[filePath path]);} else {//下载失败NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;HttpError *e = [self httpRequestFailure:httpResponse error:error];failure(e);}}];[downloadTask resume];
}

2.2 判断主题版本是否已经下载

在获取主题版本时候，需要判断主题是否存在，如果存在，则直接获取保存的地址。不存在，下载解压当前版本的主题包。

//判断当前主题版本号下是否存在资源文件夹BOOL curThemeExist = [self hasAppThemeVersion:themeModel.curVersion];if (!curThemeExist) {//如果不存在，重新下载解压__block NSString *saveZipPath = [self saveThemeTargetBasePath:themeModel.curVersion];__block NSString *themeUnZipPath = [self saveThemeDirBasePath:themeModel.curVersion];__block NSString *curDownloadurl = themeModel.curDownloadurl;//下载成功NSString *afileName = [[NSURL URLWithString:curDownloadurl] lastPathComponent];__block NSString *afilePath = [NSString pathWithComponents:@[saveZipPath, afileName]];[[INHttpClientUtil sharedInstance] downloadFileURL:curDownloadurl savePath:afilePath fileName:afilePath tag:[afilePath hash] downloadProgress:^(CGFloat progress) {} success:^(NSURLResponse *response, NSString *filePath) {//下载成功NSString *fileName = [[NSURL URLWithString:curDownloadurl] lastPathComponent];NSString *selFilePath = [NSString pathWithComponents:@[saveZipPath, fileName]];//准备执行解压方法[self onFileSelected:selFilePath unZipPath:themeUnZipPath];} failure:^(HttpError *e) {NSLog(@"failure request :%@",e);}];} else {//如果存在，直接显示__block NSString *saveZipPath = [self saveThemeTargetBasePath:themeModel.curVersion];__block NSString *themeUnZipPath = [self saveThemeDirBasePath:themeModel.curVersion];__block NSString *curDownloadurl = themeModel.curDownloadurl;//下载成功NSString *fileName = [[NSURL URLWithString:curDownloadurl] lastPathComponent];NSString *filePath = [NSString pathWithComponents:@[saveZipPath, fileName]];//准备执行解压方法[self unzipCompltion:themeUnZipPath];}

2.2 解压zip主题包

将下载的主题包解压，zip包进行解压。

// 解压
- (void)releaseZipFilesWithUnzipFileAtPath:(NSString *)zipPath destination:(NSString *)unzipPath {NSError *error;// 如果解压成功if ([SSZipArchive unzipFileAtPath:zipPath toDestination:unzipPath overwrite:YES password:nil error:&error delegate:self]) {// 存储主题的色调[self unzipCompltion:unzipPath];} else {NSLog(@"%@",error);}
}

解压完成后得到解压的目录。

2.3 获取到解压的目录地址，将配置的json文件转成对应的model

获取到解压的目录地址，将配置的json文件转成对应的model

/**调用解压文件@param unzipPath 获取地址*/
- (void)unzipCompltion:(NSString *)unzipPath {// 存储主题的色调// 已经存储主题tabbar图片、navigationbar图片、配置文件等等资源NSArray *folders = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:unzipPath error:NULL];NSString *selectedFilePath = unzipPath;NSString *aPath = [folders lastObject];NSString *fullPath = [unzipPath stringByAppendingPathComponent:aPath];selectedFilePath = fullPath;NSString *configPath = [NSString stringWithFormat:@"%@/config.json",selectedFilePath];NSFileHandle *fh = [NSFileHandle fileHandleForReadingAtPath:configPath];NSData *data = [fh readDataToEndOfFile];NSString *jsonStr = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];NSMutableDictionary *dict = [[NSMutableDictionary alloc] initWithDictionary:[SDJsonUtil dictionaryWithJsonString:jsonStr]];NSLog(@"theme config.json:%@",dict);SDAppThemeConfigViewModel *themeViewModel = [SDAppThemeConfigViewModel themeViewModel:jsonStr];themeViewModel.t_globalImage = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.globalImage];themeViewModel.navigation.t_backgroundImage = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.navigation.backgroundImage];themeViewModel.tabbar.t_backgroundImage = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.tabbar.backgroundImage];themeViewModel.tabbar.lianlian.t_icon = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.tabbar.lianlian.icon];themeViewModel.tabbar.lianlian.t_selectedIcon = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.tabbar.lianlian.selectedIcon];themeViewModel.tabbar.guangguang.t_icon = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.tabbar.guangguang.icon];themeViewModel.tabbar.guangguang.t_selectedIcon = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.tabbar.guangguang.selectedIcon];themeViewModel.tabbar.message.t_icon = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.tabbar.message.icon];themeViewModel.tabbar.message.t_selectedIcon = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.tabbar.message.selectedIcon];themeViewModel.tabbar.mine.t_icon = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.tabbar.mine.icon];themeViewModel.tabbar.mine.t_selectedIcon = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.tabbar.mine.selectedIcon];//配置全局主题[SDAppThemeManager shareInstance].configViewModel = themeViewModel;[[NSNotificationCenter defaultCenter] postNotificationName:K_APP_THEME_CHANGED object:nil userInfo:nil];
}

之后通知界面切换对应的图片及风格图。

2.4 界面添加通知Observer

界面接收到通知后，更新到对应的图片及颜色。
我这里是就写一个切换Tabbar新年主题风格图片。

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(systemAppThemeChanged:) name:K_APP_THEME_CHANGED object:nil];

切换Tabbar新年主题风格图片

- (void)updateThemeConfig {//主题，可以更改tabbar样式SDAppThemeConfigViewModel *themeConfigViewModel = [SDAppThemeManager shareInstance].configViewModel;UIImage *backgroundImage;if (themeConfigViewModel.tabbar.t_backgroundImage) {backgroundImage = themeConfigViewModel.tabbar.t_backgroundImage;} else {NSString *bgColor = themeConfigViewModel.tabbar.backgroundColor;backgroundImage = [UIImage imageWithColor:[UIColor colorWithHexString:bgColor] size:CGSizeMake(20.0, 20.0)];backgroundImage = [backgroundImage stretchableImageWithLeftCapWidth:backgroundImage.leftCapWidth*0.5 topCapHeight:backgroundImage.topCapHeight*0.5];}self.sdTabbar.bgroundImage = backgroundImage;NSString *showLine = themeConfigViewModel.tabbar.showLine;self.sdTabbar.showLine = [showLine boolValue];self.sdTabbar.lineColor = [UIColor colorWithHexString:themeConfigViewModel.tabbar.lineColor];UIColor *badgeBGColor = [UIColor colorWithHexString:themeConfigViewModel.tabbar.badgeBgColor];SDTabbarItem *homeItem = [self themeTabbarItem:themeConfigViewModel.tabbar.lianlian];homeItem.identifier = @"home";homeItem.badgeColor = badgeBGColor;SDTabbarItem *addressbookItem = [self themeTabbarItem:themeConfigViewModel.tabbar.message];addressbookItem.identifier = @"addressbook";addressbookItem.badgeColor = badgeBGColor;SDTabbarItem *discoveryItem = [self themeTabbarItem:themeConfigViewModel.tabbar.guangguang];discoveryItem.identifier = @"discovery";discoveryItem.badgeColor = badgeBGColor;SDTabbarItem *mineItem = [self themeTabbarItem:themeConfigViewModel.tabbar.mine];mineItem.identifier = @"mine";mineItem.badgeColor = badgeBGColor;[self.sdTabbar updateTabbarStyle:homeItem];[self.sdTabbar updateTabbarStyle:addressbookItem];[self.sdTabbar updateTabbarStyle:discoveryItem];[self.sdTabbar updateTabbarStyle:mineItem];
}- (void)systemAppThemeChanged:(NSNotification *)notification {[self updateThemeConfig];
}- (SDTabbarItem *)themeTabbarItem:(SDAppThemeConfigTabItemViewModel *)itemViewModel {SDTabbarItem *tabbarItem = [[SDTabbarItem alloc] init];tabbarItem.title = itemViewModel.title;tabbarItem.titleColor = [UIColor colorWithHexString:itemViewModel.titleColor];tabbarItem.selectedTitleColor = [UIColor colorWithHexString:itemViewModel.selectedTitleColor];tabbarItem.image = itemViewModel.t_icon;tabbarItem.selectedImage = itemViewModel.t_selectedIcon;return tabbarItem;
}

tabbar的按钮更新：根据对应的identifier切换到对应的图片及颜色配置。

/**更新tabbar样式@param tabbarItem item*/
- (void)updateTabbarStyle:(SDTabbarItem *)tabbarItem {for (UIView *subView in self.subviews) {if ([subView isKindOfClass:[SDTabbarButton class]]) {SDTabbarButton *tabbarButton = (SDTabbarButton *)subView;SDTabbarItem *item = tabbarButton.tabbarItem;if (tabbarItem.identifier && [tabbarItem.identifier isEqualToString:item.identifier]) {//更新tabbar[item copyClone:tabbarItem];tabbarButton.tabbarItem = item;break;}}}
}

三、将model序列化存储到本地目录

将主题数据序列号存储到本地目录，方便下次打开APP进行获取。

SDAppThemeConfigDbManager.h

#import <Foundation/Foundation.h>
#import "SDAppThemeManager.h"@interface SDAppThemeConfigDbManager : NSObject+ (id)shareInstance;- (SDAppThemeViewModel *)getAppThemeViewModelFromDb;- (void)saveAppThemeViewModelToDb:(SDAppThemeViewModel *)info;@end

SDAppThemeConfigDbManager.m

#import "SDAppThemeConfigDbManager.h"static NSString *appThemeConfigPath = @"sdAppThemeConfigPath";
static SDAppThemeConfigDbManager *instance = nil;@implementation SDAppThemeConfigDbManager+ (id)shareInstance
{static dispatch_once_t predicate;dispatch_once(&predicate,^{instance = [[self alloc] init];});return instance;
}- (NSString *)getAppThemeConfigPath
{NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);NSString *documentPath = [paths objectAtIndex:0];NSString *path = [documentPath stringByAppendingPathComponent:appThemeConfigPath];return path;
}- (SDAppThemeViewModel *)getAppThemeViewModelFromDb {NSString *dataFile = [self getAppThemeConfigPath];@try {SDAppThemeViewModel *viewModel = [NSKeyedUnarchiver unarchiveObjectWithFile:dataFile];if (viewModel) {return viewModel;}} @catch (NSException *e) {}return nil;
}- (void)saveAppThemeViewModelToDb:(SDAppThemeViewModel *)info {NSData *data = [NSKeyedArchiver archivedDataWithRootObject:info];NSString *dataFile = [self getAppThemeConfigPath];BOOL isSave = [data writeToFile:dataFile atomically:YES];if (isSave) {NSLog(@"存储成功");} else {NSLog(@"存储失败");}
}@end

四、完整实现代码

  • 需要用到主题Manager：SDAppThemeManager

SDAppThemeManager.h

#import <Foundation/Foundation.h>
//#import "SDThemeConfigRequest.h"
#import "SDAppThemeConfigViewModel.h"/**获取的app主题model，app主题颜色版本号*/
@interface SDAppThemeViewModel : NSObject<NSCoding>@property (nonatomic, strong) NSString *curDownloadurl;     //当前版本的下载地址
@property (nonatomic, strong) NSString *curVersion;         //当前app主题颜色版本号@property (nonatomic, strong) NSString *nextDownloadurl;    //下一版本的下载地址
@property (nonatomic, strong) NSString *nextVersion;        //下一版本app主题颜色版本号@end@interface SDAppThemeManager : NSObject+ (instancetype)shareInstance;@property (nonatomic, strong) SDAppThemeConfigViewModel *configViewModel; //当前版本控制文件/**从服务器端加载APP主题接口*/
- (void)loadAppThemeConfig;/**加载系统主题资源*/
- (void)loadCacheThemeResource;@end

SDAppThemeManager.m

#import "SDAppThemeManager.h"
#import "SDAppThemeConfigDbManager.h"
#import "SDAppThemeDownloadManager.h"
#import "INHttpClientUtil.h"@implementation SDAppThemeViewModel- (id)init {self = [super init];if (self) {}return self;
}- (id)initWithCoder:(NSCoder *)aDecoder
{self = [super init];if (self) {self.curDownloadurl = [aDecoder decodeObjectForKey:@"kAppThemeCurDownloadurl"];self.curVersion = [aDecoder decodeObjectForKey:@"kAppThemeCurVersion"];self.nextDownloadurl = [aDecoder decodeObjectForKey:@"kAppThemeNextDownloadurl"];self.nextVersion = [aDecoder decodeObjectForKey:@"kAppThemeNextVersion"];}return self;
}- (void)encodeWithCoder:(NSCoder *)aCoder
{[aCoder encodeObject:_curDownloadurl forKey:@"kAppThemeCurDownloadurl"];[aCoder encodeObject:_curVersion forKey:@"kAppThemeCurVersion"];[aCoder encodeObject:_nextDownloadurl forKey:@"kAppThemeNextDownloadurl"];[aCoder encodeObject:_nextVersion forKey:@"kAppThemeNextVersion"];
}- (void)clear {self.curDownloadurl = nil;self.curVersion = nil;self.nextDownloadurl = nil;self.nextVersion = nil;
}@endstatic SDAppThemeManager *shareInstance = nil;@implementation SDAppThemeManager+ (instancetype)shareInstance {static dispatch_once_t onceToken;dispatch_once(&onceToken, ^{shareInstance = [[SDAppThemeManager alloc] init];shareInstance.configViewModel = [SDAppThemeConfigViewModel defautThemeViewModel];});return shareInstance;
}/**从服务器端加载APP主题接口*/
- (void)loadAppThemeConfig {[[INHttpClientUtil sharedInstance] getWithClientType:HttpClientTypeDefault url:@"/v1/api/theme/system" params:nil success:^(id responseObj) {NSString *code = [NSString stringWithFormat:@"%@",responseObj[@"code"]];if ([@"0" isEqualToString:code] && responseObj[@"data"]) {NSString *curDownloadurl = responseObj[@"data"][@"curDownloadurl"];NSString *curVersion = responseObj[@"data"][@"curVersion"];NSString *nextDownloadurl = responseObj[@"data"][@"nextDownloadurl"];NSString *nextVersion = responseObj[@"data"][@"nextVersion"];SDAppThemeViewModel *themeViewModel = [[SDAppThemeViewModel alloc] init];themeViewModel.curDownloadurl = nextDownloadurl;themeViewModel.curVersion = @"2016.10.27";themeViewModel.nextDownloadurl = nextDownloadurl;themeViewModel.nextVersion = nextVersion;[[SDAppThemeConfigDbManager shareInstance] saveAppThemeViewModelToDb:themeViewModel];[[SDAppThemeDownloadManager shareInstance] downloadThemeZipPackage:themeViewModel];}} failure:^(HttpError *e) {DLog(@"request:%@",e);}];
}/**加载系统主题资源*/
- (void)loadCacheThemeResource {[[SDAppThemeDownloadManager shareInstance] loadCacheThemeResource];
}@end
  • 需要用到主题下载类SDAppThemeDownloadManager

SDAppThemeDownloadManager.h

#import <Foundation/Foundation.h>
//#import "SDThemeConfigRequest.h"
#import "SDAppThemeManager.h"
#import "SDAppThemeConfigViewModel.h"
#import "SDAppThemeConfigDbManager.h"#define K_APP_THEME_CHANGED @"K_APP_THEME_CHANGED"
#define K_DEFAULT_APP_THEME_VERSION @"1.0.0"@interface SDAppThemeDownloadManager : NSObject+ (instancetype)shareInstance;- (void)downloadThemeZipPackage:(SDAppThemeViewModel *)themeModel;/**加载系统主题资源*/
- (void)loadCacheThemeResource;@end

SDAppThemeDownloadManager.m

#import "SDAppThemeDownloadManager.h"
#import "SDJsonUtil.h"
//#import "NSString+ext.h"
#import <SSZipArchive/SSZipArchive.h>
#import "SDAppThemeManager.h"
#import "INHttpClientUtil.h"static SDAppThemeDownloadManager *manager = nil;@interface SDAppThemeDownloadManager () <SSZipArchiveDelegate>@end@implementation SDAppThemeDownloadManager+ (instancetype)shareInstance {static dispatch_once_t onceToken;dispatch_once(&onceToken, ^{manager = [[SDAppThemeDownloadManager alloc] init];});return manager;
}- (void)downloadThemeZipPackage:(SDAppThemeViewModel *)themeModel {//判断当前主题版本号下是否存在资源文件夹BOOL curThemeExist = [self hasAppThemeVersion:themeModel.curVersion];if (!curThemeExist) {//如果不存在，重新下载解压__block NSString *saveZipPath = [self saveThemeTargetBasePath:themeModel.curVersion];__block NSString *themeUnZipPath = [self saveThemeDirBasePath:themeModel.curVersion];__block NSString *curDownloadurl = themeModel.curDownloadurl;//下载成功NSString *afileName = [[NSURL URLWithString:curDownloadurl] lastPathComponent];__block NSString *afilePath = [NSString pathWithComponents:@[saveZipPath, afileName]];[[INHttpClientUtil sharedInstance] downloadFileURL:curDownloadurl savePath:afilePath fileName:afilePath tag:[afilePath hash] downloadProgress:^(CGFloat progress) {} success:^(NSURLResponse *response, NSString *filePath) {//下载成功NSString *fileName = [[NSURL URLWithString:curDownloadurl] lastPathComponent];NSString *selFilePath = [NSString pathWithComponents:@[saveZipPath, fileName]];//准备执行解压方法[self onFileSelected:selFilePath unZipPath:themeUnZipPath];} failure:^(HttpError *e) {NSLog(@"failure request :%@",e);}];} else {//如果存在，直接显示__block NSString *saveZipPath = [self saveThemeTargetBasePath:themeModel.curVersion];__block NSString *themeUnZipPath = [self saveThemeDirBasePath:themeModel.curVersion];__block NSString *curDownloadurl = themeModel.curDownloadurl;//下载成功NSString *fileName = [[NSURL URLWithString:curDownloadurl] lastPathComponent];NSString *filePath = [NSString pathWithComponents:@[saveZipPath, fileName]];//准备执行解压方法[self unzipCompltion:themeUnZipPath];}/*//判断下一主题版本号下是否存在资源文件夹中BOOL nextThemeExist = [self hasAppThemeVersion:themeModel.nextVersion];if (!nextThemeExist) {//如果不存在，重新下载解压__block NSString *saveZipPath = [self saveThemeTargetBasePath:themeModel.nextVersion];[[HttpClient sharedInstance] downloadFileURL:themeModel.curDownloadurl savePath:saveZipPath fileName:saveZipPath tag:[saveZipPath hash] success:^(id responseObj) {//下载成功} failure:^(HttpException *e) {//下载失败}];}*/
}// 解压
- (void)releaseZipFilesWithUnzipFileAtPath:(NSString *)zipPath destination:(NSString *)unzipPath {NSError *error;// 如果解压成功if ([SSZipArchive unzipFileAtPath:zipPath toDestination:unzipPath overwrite:YES password:nil error:&error delegate:self]) {// 存储主题的色调[self unzipCompltion:unzipPath];} else {NSLog(@"%@",error);}
}/**调用解压文件@param unzipPath 获取地址*/
- (void)unzipCompltion:(NSString *)unzipPath {// 存储主题的色调// 已经存储主题tabbar图片、navigationbar图片、配置文件等等资源NSArray *folders = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:unzipPath error:NULL];NSString *selectedFilePath = unzipPath;NSString *aPath = [folders lastObject];NSString *fullPath = [unzipPath stringByAppendingPathComponent:aPath];selectedFilePath = fullPath;NSString *configPath = [NSString stringWithFormat:@"%@/config.json",selectedFilePath];NSFileHandle *fh = [NSFileHandle fileHandleForReadingAtPath:configPath];NSData *data = [fh readDataToEndOfFile];NSString *jsonStr = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];NSMutableDictionary *dict = [[NSMutableDictionary alloc] initWithDictionary:[SDJsonUtil dictionaryWithJsonString:jsonStr]];NSLog(@"theme config.json:%@",dict);SDAppThemeConfigViewModel *themeViewModel = [SDAppThemeConfigViewModel themeViewModel:jsonStr];themeViewModel.t_globalImage = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.globalImage];themeViewModel.navigation.t_backgroundImage = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.navigation.backgroundImage];themeViewModel.tabbar.t_backgroundImage = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.tabbar.backgroundImage];themeViewModel.tabbar.lianlian.t_icon = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.tabbar.lianlian.icon];themeViewModel.tabbar.lianlian.t_selectedIcon = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.tabbar.lianlian.selectedIcon];themeViewModel.tabbar.guangguang.t_icon = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.tabbar.guangguang.icon];themeViewModel.tabbar.guangguang.t_selectedIcon = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.tabbar.guangguang.selectedIcon];themeViewModel.tabbar.message.t_icon = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.tabbar.message.icon];themeViewModel.tabbar.message.t_selectedIcon = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.tabbar.message.selectedIcon];themeViewModel.tabbar.mine.t_icon = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.tabbar.mine.icon];themeViewModel.tabbar.mine.t_selectedIcon = [self imageWithDocumentoryName:[NSString stringWithFormat:@"%@",selectedFilePath] imageName:themeViewModel.tabbar.mine.selectedIcon];//配置全局主题[SDAppThemeManager shareInstance].configViewModel = themeViewModel;[[NSNotificationCenter defaultCenter] postNotificationName:K_APP_THEME_CHANGED object:nil userInfo:nil];
}/**准备执行解压方法@param selectedPath 原先文件路径@param unZipPath 解压文件路径*/
- (void)onFileSelected:(NSString *)selectedPath unZipPath:(NSString *)unZipPath {NSURL *fileURL = [NSURL fileURLWithPath:selectedPath];NSString *fileNameComponent = fileURL.lastPathComponent;// 获取文件的扩展名NSString *extension = [[fileNameComponent pathExtension] lowercaseString];// 如果是zip类型的压缩包文件，则进行解压if ([extension isEqualToString:@"zip"]) {// 设置解压路径[self releaseZipFilesWithUnzipFileAtPath:selectedPath destination:unZipPath];}
}/**判断当前path路径是否存在@param themeVersion 主题版本号@return 是否文件*/
- (BOOL)hasAppThemeVersion:(NSString *)themeVersion {NSString *pathOfLibrary = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];NSString *path = [pathOfLibrary stringByAppendingPathComponent:[NSString stringWithFormat:@"dftheme-%@",themeVersion]];NSArray *folders = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:path error:NULL];if (!(folders && folders.count > 0)) {return NO;}NSString *aPath = [folders lastObject];NSString *fullPath = [path stringByAppendingPathComponent:aPath];NSFileManager *fileManager = [NSFileManager defaultManager];BOOL result = [fileManager fileExistsAtPath:fullPath];return result;
}/**主题未解压下载目录@param themeVersion 主题版本号@return 最后path*/
- (NSString *)saveThemeTargetBasePath:(NSString *)themeVersion {NSString *pathOfLibrary = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];NSString *path = [pathOfLibrary stringByAppendingPathComponent:[NSString stringWithFormat:@"dfThemesZip-%@",themeVersion]];[self createDirectory:path];return path;
}/**主题解压目录@param themeVersion 主题版本号@return 最后path*/
- (NSString *)saveThemeDirBasePath:(NSString *)themeVersion {NSString *pathOfLibrary = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];NSString *path = [pathOfLibrary stringByAppendingPathComponent:[NSString stringWithFormat:@"dftheme-%@",themeVersion]];[self createDirectory:path];return path;
}- (void)createDirectory:(NSString *)path {NSError *error = nil;[[NSFileManager defaultManager] createDirectoryAtPath:path withIntermediateDirectories:YESattributes:nil error:&error];if (error) {NSLog(@"Create directory error: %@", error);}
}/**获取使用存储在沙盒里的图片@param documentoryName 文件目录@param imageName 图片名字@return 图片*/
- (UIImage *)imageWithDocumentoryName:(NSString *)documentoryNameimageName:(NSString *)imageName {// 如果文件名不存在或者文件名为空，则返回空if (!imageName || [imageName isEqualToString:@""]) {return nil;}NSString *imgPath = [documentoryName stringByAppendingPathComponent:[NSString stringWithFormat:@"%@",imageName]];UIImage *image = [UIImage imageWithContentsOfFile:imgPath];if (image) {return image;}return [UIImage imageNamed:imageName];
}/**加载系统主题资源*/
- (void)loadCacheThemeResource {SDAppThemeViewModel *themeVersionViewModel = [[SDAppThemeConfigDbManager shareInstance] getAppThemeViewModelFromDb];if (themeVersionViewModel && ![K_DEFAULT_APP_THEME_VERSION isEqualToString:themeVersionViewModel.curVersion]) {[self downloadThemeZipPackage:themeVersionViewModel];}
}

@end

  • 需要用到主题数据：SDAppThemeConfigViewModel

SDAppThemeConfigViewModel.h

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>/**Navigation主题样式*/
@interface SDAppThemeConfigNavViewModel : NSObject@property (nonatomic, strong) NSString *backgroundColor;
@property (nonatomic, strong) NSString *backgroundImage;@property (nonatomic, strong) UIImage *t_backgroundImage;@property (nonatomic, strong) NSString *btnImageColor;
@property (nonatomic, strong) NSString *btnTitleColor;
@property (nonatomic, strong) NSString *navTitleColor;@property (nonatomic, strong) NSString *showLine;
@property (nonatomic, strong) NSString *lineColor;@end/**单个tab按钮样式*/
@interface SDAppThemeConfigTabItemViewModel : NSObject@property (nonatomic, strong) NSString *title;
@property (nonatomic, strong) NSString *titleColor;
@property (nonatomic, strong) NSString *selectedTitleColor;
@property (nonatomic, strong) NSString *icon;
@property (nonatomic, strong) NSString *selectedIcon;@property (nonatomic, strong) UIImage *t_icon;
@property (nonatomic, strong) UIImage *t_selectedIcon;@end/**tabbar样式*/
@interface SDAppThemeConfigTabViewModel : NSObject@property (nonatomic, strong) NSString *backgroundColor;
@property (nonatomic, strong) NSString *backgroundImage;
@property (nonatomic, strong) NSString *showLine;
@property (nonatomic, strong) NSString *lineColor;
@property (nonatomic, strong) NSString *badgeBgColor;@property (nonatomic, strong) UIImage *t_backgroundImage;@property (nonatomic, strong) SDAppThemeConfigTabItemViewModel *lianlian;
@property (nonatomic, strong) SDAppThemeConfigTabItemViewModel *guangguang;
@property (nonatomic, strong) SDAppThemeConfigTabItemViewModel *message;
@property (nonatomic, strong) SDAppThemeConfigTabItemViewModel *shop;
@property (nonatomic, strong) SDAppThemeConfigTabItemViewModel *mine;@end/**将本地的主题config.json转成viewmodel*/
@interface SDAppThemeConfigViewModel : NSObject@property (nonatomic, strong) NSString *globalColor;
@property (nonatomic, strong) NSString *globalImage;
@property (nonatomic, strong) SDAppThemeConfigNavViewModel *navigation;
@property (nonatomic, strong) SDAppThemeConfigTabViewModel *tabbar;@property (nonatomic, strong) UIImage *t_globalImage;+ (SDAppThemeConfigViewModel *)themeViewModel:(NSString *)themeJson;+ (SDAppThemeConfigViewModel *)defautThemeViewModel;@end

SDAppThemeConfigViewModel.m

#import "SDAppThemeConfigViewModel.h"
#import <NSObject+YYModel.h>/**Navigation主题样式*/
@implementation SDAppThemeConfigNavViewModel@end/**单个tab按钮样式*/
@implementation SDAppThemeConfigTabItemViewModel@end/**tabbar样式*/
@implementation SDAppThemeConfigTabViewModel@end/**将本地的主题config.json转成viewmodel*/
@implementation SDAppThemeConfigViewModel+ (SDAppThemeConfigViewModel *)themeViewModel:(NSString *)themeJson {return [SDAppThemeConfigViewModel modelWithJSON:themeJson];
}+ (SDAppThemeConfigViewModel *)defautThemeViewModel {SDAppThemeConfigViewModel *viewModel = [[SDAppThemeConfigViewModel alloc] init];SDAppThemeConfigNavViewModel *navConfigViewModel = [[SDAppThemeConfigNavViewModel alloc] init];navConfigViewModel.backgroundColor = @"171013";navConfigViewModel.btnImageColor = @"ffffff";navConfigViewModel.btnTitleColor = @"ffffff";navConfigViewModel.navTitleColor = @"ffffff";viewModel.navigation = navConfigViewModel;return viewModel;
}@end
  • 主题配置序列化存储本地：SDAppThemeConfigDbManager

SDAppThemeConfigDbManager.h

#import <Foundation/Foundation.h>
#import "SDAppThemeManager.h"@interface SDAppThemeConfigDbManager : NSObject+ (id)shareInstance;- (SDAppThemeViewModel *)getAppThemeViewModelFromDb;- (void)saveAppThemeViewModelToDb:(SDAppThemeViewModel *)info;@end

SDAppThemeConfigDbManager.m

#import "SDAppThemeConfigDbManager.h"static NSString *appThemeConfigPath = @"sdAppThemeConfigPath";
static SDAppThemeConfigDbManager *instance = nil;@implementation SDAppThemeConfigDbManager+ (id)shareInstance
{static dispatch_once_t predicate;dispatch_once(&predicate,^{instance = [[self alloc] init];});return instance;
}- (NSString *)getAppThemeConfigPath
{NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);NSString *documentPath = [paths objectAtIndex:0];NSString *path = [documentPath stringByAppendingPathComponent:appThemeConfigPath];return path;
}- (SDAppThemeViewModel *)getAppThemeViewModelFromDb {NSString *dataFile = [self getAppThemeConfigPath];@try {SDAppThemeViewModel *viewModel = [NSKeyedUnarchiver unarchiveObjectWithFile:dataFile];if (viewModel) {return viewModel;}} @catch (NSException *e) {}return nil;
}- (void)saveAppThemeViewModelToDb:(SDAppThemeViewModel *)info {NSData *data = [NSKeyedArchiver archivedDataWithRootObject:info];NSString *dataFile = [self getAppThemeConfigPath];BOOL isSave = [data writeToFile:dataFile atomically:YES];if (isSave) {NSLog(@"存储成功");} else {NSLog(@"存储失败");}
}@end

至此，实现获取下载主题配置更切换主题的代码实现完成。

五、小结

iOS开发-实现获取下载主题配置更切换主题，主要是通过请求服务端配置的主题配置、下载主题、解压保存到本地。通知界面获取对应的图片及颜色等。

学习记录，每天不停进步。

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