iOS版本更新
2019-02-20 10:55
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最近,应项目需求,简单写了一个版本更新的提示,有需要的码友可以去下载看看,实现起来比较简单。
效果图
首先是请求appStore上这个app的最新版本信息
NSURL *appStoreUrl = [NSURL URLWithString:[NSString stringWithFormat:@"https://itunes.apple.com/cn/lookup?id=%@", APPID]]; NSURLRequest *request = [[NSURLRequest alloc] initWithURL:appStoreUrl]; NSURLSession *session = [NSURLSession sharedSession]; NSURLSessionTask *task = [session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
然后根据相关逻辑处理数据
这个里边主要是富文本编辑修改了下alertVC的title跟message显示的格式,处理下逻辑
if (!error) { NSDictionary *appInfoDic = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil]; NSLog(@"%@",appInfoDic); if ([appInfoDic[@"results"] count] == 0) { NSLog(@"暂无版本信息"); return ; } NSDictionary *messageDic = appInfoDic[@"results"][0]; //版本 NSString *appVersionStr = messageDic[@"version"]; //更新内容 NSString *releaseNotes = messageDic[@"releaseNotes"]; if ([[NSUserDefaults standardUserDefaults] objectForKey:@"newVersion"] == nil ||[[NSUserDefaults standardUserDefaults] objectForKey:@"newVersion"] != appVersionStr) { [[NSUserDefaults standardUserDefaults] setObject:appVersionStr forKey:@"newVersion"]; [[NSUserDefaults standardUserDefaults] setBool:NO forKey:@"AppUpdate"]; [[NSUserDefaults standardUserDefaults] synchronize]; } if (appVersionStr == nil || [self getCurrentVersion] == appVersionStr || [[NSUserDefaults standardUserDefaults] boolForKey:@"AppUpdate"]){ return; } UIAlertController *alertVC = [UIAlertController alertControllerWithTitle:[NSString stringWithFormat:@"有新版本更新\n%@\n",appVersionStr] message:releaseNotes preferredStyle:UIAlertControllerStyleAlert]; UIView *messageParentView = [self getParentViewOfTitleAndMessageFromView:alertVC.view]; if (messageParentView && messageParentView.subviews.count > 1) { UILabel *messageLb = messageParentView.subviews[1]; messageLb.textAlignment = NSTextAlignmentLeft; } UIAlertAction *cancleAction = [UIAlertAction actionWithTitle:@"稍后更新" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) { }]; NSString *alertVCTitle = [NSString stringWithFormat:@"有新版本更新\n%@",appVersionStr]; NSMutableAttributedString *alertVCAttributedTitle = [self changeStrWith:alertVCTitle range:NSMakeRange(6, alertVCTitle.length - 6) strColor:[UIColor lightGrayColor] strFont:[UIFont systemFontOfSize:16]]; //修改提示框标题字体 [alertVC setValue:alertVCAttributedTitle forKey:@"attributedTitle"]; NSMutableAttributedString *alertVCAttributedMessage = [self changeStrWith:releaseNotes range:NSMakeRange(0, releaseNotes.length) strColor:[UIColor darkGrayColor] strFont:[UIFont systemFontOfSize:15.0]]; //修改提示信息格式 [alertVC setValue:alertVCAttributedMessage forKey:@"attributedMessage"]; //获取当前控制器 UIViewController *currentVc = [self activityViewController]; UIAlertAction *conformAction = [UIAlertAction actionWithTitle:@"前往更新" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) { if ([[UIDevice currentDevice].systemVersion floatValue] >= 8.0) { SKStoreProductViewController *storeViewController = [[SKStoreProductViewController alloc] init]; NSDictionary *parameters = @{SKStoreProductParameterITunesItemIdentifier : APPID, SKStoreProductParameterAffiliateToken : [NSString string], SKStoreProductParameterCampaignToken : [NSString string] }; [storeViewController loadProductWithParameters:parameters completionBlock:^(BOOL result, NSError *error) { if (!error) { dispatch_async(dispatch_get_main_queue(), ^{ [currentVc presentViewController:storeViewController animated:YES completion:^{ [[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"AppUpdate"]; [[NSUserDefaults standardUserDefaults] synchronize]; }]; }); }else{ NSLog(@"%@",error); } }]; }else{ NSString *appStroeStr = [NSString stringWithFormat:@"itms-apps://itunes.apple.com/cn/app/id%@?l=en&mt=8", APPID]; [[UIApplication sharedApplication] openURL:[NSURL URLWithString:appStroeStr]]; [[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"AppUpdate"]; [[NSUserDefaults standardUserDefaults] synchronize]; } }]; [alertVC addAction:cancleAction]; [alertVC addAction:conformAction]; dispatch_async(dispatch_get_main_queue(), ^{ [currentVc presentViewController:alertVC animated:YES completion:nil]; }); } }]; [task resume]; });
里边用运了程序内部调用appStore的方法,苹果有相关的框架StoreKit,里边的控制器SKStoreProductViewController就是展示界面,我们可以只传相应的appID进去就行
if ([[UIDevice currentDevice].systemVersion floatValue] >= 8.0) { SKStoreProductViewController *storeViewController = [[SKStoreProductViewController alloc] init]; NSDictionary *parameters = @{SKStoreProductParameterITunesItemIdentifier : APPID, SKStoreProductParameterAffiliateToken : [NSString string], SKStoreProductParameterCampaignToken : [NSString string] }; [storeViewController loadProductWithParameters:parameters completionBlock:^(BOOL result, NSError *error) { if (!error) { dispatch_async(dispatch_get_main_queue(), ^{ [currentVc presentViewController:storeViewController animated:YES completion:^{ [[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"AppUpdate"]; [[NSUserDefaults standardUserDefaults] synchronize]; }]; }); }else{ NSLog(@"%@",error); } }]; }else{ NSString *appStroeStr = [NSString stringWithFormat:@"itms-apps://itunes.apple.com/cn/app/id%@?l=en&mt=8", APPID]; [[UIApplication sharedApplication] openURL:[NSURL URLWithString:appStroeStr]]; [[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"AppUpdate"]; [[NSUserDefaults standardUserDefaults] synchronize]; } }];
使用runtime,获取调出的appStore界面后点击取消button时的方法,用于dismiss自己,写了一个SKStoreProductViewController的扩展类
+ (void)load{ static dispatch_once_t onceToken; dispatch_once(&onceToken, ^{ Class class = [self class]; SEL originalSelector = NSSelectorFromString(@"_didFinish"); //动态获取当前控制器点击取消时候的方法,以便dismiss自己 SEL swizzledSelector = @selector(vc_didFinish); Method originalMethod = class_getInstanceMethod(class, originalSelector); Method swizzledMethod = class_getInstanceMethod(class, swizzledSelector); BOOL didAddMethod = class_addMethod(class, originalSelector, me 3ff7 thod_getImplementation(swizzledMethod), method_getTypeEncoding(swizzledMethod)); if (didAddMethod) { class_replaceMethod(class, swizzledSelector, method_getImplementation(originalMethod), method_getTypeEncoding(originalMethod)); }else{ method_exchangeImplementations(originalMethod, swizzledMethod); } }); }
在自定义的方法里边调用,dismiss
- (void)vc_didFinish{ [self vc_didFinish]; [self dismissViewControllerAnimated:YES completion:nil]; }
其中,用了递归算法,用于获取alertVc里边用于展示message的Label,使它的文字对中方式为距左对齐
/** 递归算法 */ + (UIView *)getParentViewOfTitleAndMessageFromView:(UIView *)view { for (UIView *subView in view.subviews) { if ([subView isKindOfClass:[UILabel class]]) { return view; }else{ UIView *resultV = [self getParentViewOfTitleAndMessageFromView:subView]; if (resultV) return resultV; } } return nil; }
/** 富文本编辑 @param string 要编辑的字符串 @param range 需要改变的字符串range @param color 字体颜色 @param font 字体大小 @return 修改后的字符串 */ + (NSMutableAttributedString *)changeStrWith:(NSString *)string range:(NSRange)range strColor:(UIColor *)color strFont:(UIFont *)font { NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:string]; [attributedString addAttribute:NSForegroundColorAttributeName value:color range:range]; [attributedString addAttribute:NSFontAttributeName value:font range:range]; return attributedString; }
获取当前系统展示的控制器,用于模态alertVc跟SKStoreProductViewController
/** 获取当前显示的控制器 @return 当前控制器 */ + (UIViewController *)activityViewController { UIViewController* activityViewController = nil; UIWindow *window = [[UIApplication sharedApplication] keyWindow]; if(window.windowLevel != UIWindowLevelNormal) { NSArray *windows = [[UIApplication sharedApplication] windows]; for(UIWindow *tmpWin in windows) { if(tmpWin.windowLevel == UIWindowLevelNormal) { window = tmpWin; break; } } } NSArray *viewsArray = [window subviews]; if([viewsArray count] > 0) { UIView *frontView = [viewsArray objectAtIndex:0]; id nextResponder = [frontView nextResponder]; if([nextResponder isKindOfClass:[UIViewController class]]) { activityViewController = nextResponder; } else { activityViewController = window.rootViewController; } } return activityViewController; }
具体的代码实现,请前往gitHub下载源码参照,如果有什么问题欢迎留言探讨。
下载地址
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