时间 2016-11-23 09:35:54CocoaChina
原文http://www.cocoachina.com/ios/20161123/18170.html
主题iOS开发
一.前言:
1.iOS开发中,有时会有这种需求,在AppStore上出现新版本时,应用内弹窗提示用户更新.
2.之前在网上看到一种方法通过AppId查询更新的,但是有时候APP没上线或开发账号还没注册下来时我们并不知道AppId,此时就要把这个功能做上去,该怎么办呢?
3.现介绍一种简便的方法给大家,不需要提供AppId等任何信息,即可实现查询AppStore中是否有新版本,并提示更新.
4.代码地址:见篇尾.
二.效果:
三.实现逻辑:
1.先查询AppStore中该App的信息(包含版本,更新日志等)
2.和App当前版本进行比较,比当前版本新,弹窗并显示更新日志,提示用户跳转到AppStore更新
3.为了方便在以后开发中调用,笔者实现时进行简单封装.
四.直接上代码:
-4.1获取AppStore中该App的版本信息
1.为了不依赖其他数据请求库,笔者采用系统方法做数据请求,当然你们也可以使用AFN等框架请求数据.
2.新建一个请求版本信息的类继承NSObject笔者取名 XHVersionRequest
3.在XHVersionRequest.h文件中添加请求成功和失败回调和数据请求方法,代码如下:
#importtypedefvoid(^RequestSucess) (NSDictionary * responseDict);typedefvoid(^RequestFailure) (NSError *error);@interfaceXHVersionRequest:NSObject/**
* 从AppStore中获取App信息
*
* @param success 成功回调
* @param failure 失败回调
*/+(void)xh_versionRequestSuccess:(RequestSucess)successfailure:(RequestFailure)failure;@end
4.在XHVersionRequest.m文件中实现
#import"XHVersionRequest.h"@implementationXHVersionRequest+(void)xh_versionRequestSuccess:(RequestSucess)success failure:(RequestFailure)failure{NSDictionary*infoDict = [[NSBundlemainBundle] infoDictionary];NSString*bundleId = infoDict[@"CFBundleIdentifier"];NSURL*URL = [NSURLURLWithString:[NSStringstringWithFormat:@"http://itunes.apple.com/lookup?bundleId=%@",bundleId]];dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT,0), ^{NSURLRequest*request = [NSURLRequestrequestWithURL:URL];NSURLSessionDataTask*dataTask = [[NSURLSessionsharedSession] dataTaskWithRequest:request completionHandler:^(NSData* _Nullable data,NSURLResponse* _Nullable response,NSError* _Nullable error) {dispatch_async(dispatch_get_main_queue(), ^{if(!error) {NSDictionary*responseDict = [NSJSONSerializationJSONObjectWithData:data options:NSJSONReadingMutableLeaveserror:nil];if(success) success(responseDict); }else{if(failure) failure(error); } }); }]; [dataTask resume]; });}@end
-4.2解析请求回来App信息数据
1.新建一个App信息模型继承NSObject,笔者取名XHAppInfo,为减少依赖,笔者暂不采用JSON -> Model 框架解析数据.
2.在XHAppInfo.h和XHAppInfo.m中分别添加以下代码:
XHAppInfo.h文件
#import#import@interfaceXHAppInfo : NSObject/** * 版本号 */@property(nonatomic,copy) NSString * version;/**
* 更新日志
*/@property(nonatomic,copy)NSString*releaseNotes;/**
* 更新时间
*/@property(nonatomic,copy)NSString*currentVersionReleaseDate;/**
* APPId
*/@property(nonatomic,copy)NSString*trackId;/**
* bundleId
*/@property(nonatomic,copy)NSString*bundleId;/**
* AppStore地址
*/@property(nonatomic,copy)NSString*trackViewUrl;-(instancetype)initWithResult:(NSDictionary*)result;@end
XHAppInfo.m文件
#import"XHAppInfo.h"@implementationXHAppInfo- (instancetype)initWithResult:(NSDictionary*)result{self= [superinit];if(self) {self.version = result[@"version"];self.releaseNotes = result[@"releaseNotes"];self.currentVersionReleaseDate = result[@"currentVersionReleaseDate"];self.trackId = result[@"trackId"];self.bundleId = result[@"bundleId"];self.trackViewUrl = result[@"trackViewUrl"];self.appDescription = result[@"appDescription"];self.sellerName = result[@"sellerName"];self.fileSizeBytes = result[@"fileSizeBytes"];self.screenshotUrls = result[@"screenshotUrls"]; }returnself;}@end
-4.3比较与当前版本大小关系,提示更新
1.笔者新建一个类XHVersion(继承NSObject)来处理版本比较和弹窗
2.为了调用更灵活,我们在XHVersion.h文件中添加如下两个方法:1.一个是使用默认弹窗,2.一个是回调新版本信息,开发者自定义弹窗
XHVersion.h文件
#import#import"XHAppInfo.h"typedefvoid(^NewVersionBlock)(XHAppInfo *appInfo);@interfaceXHVersion : NSObject/**
* 检测新版本(使用默认提示框)
*/+(void)checkNewVersion;/**
* 检测新版本(自定义提示框)
*
* @param newVersion 新版本信息回调
*/+(void)checkNewVersionAndCustomAlert:(NewVersionBlock)newVersion;@end
XHVersion.m文件中进行实现,代码如下
#import"XHVersion.h"#import"XHVersionRequest.h"@interfaceXHVersion()@property(nonatomic,strong)XHAppInfo*appInfo;@end@implementationXHVersion+(void)checkNewVersion{ [[XHVersion shardManger] checkNewVersion];}+(void)checkNewVersionAndCustomAlert:(NewVersionBlock)newVersion{ [[XHVersion shardManger] checkNewVersionAndCustomAlert:newVersion];}#pragma mark - private+(XHVersion *)shardManger{staticXHVersion *instance =nil;staticdispatch_once_toneToken;dispatch_once(&oneToken,^{ instance = [[XHVersion alloc] init]; });returninstance;}-(void)checkNewVersion{ [selfversionRequest:^(XHAppInfo *appInfo) {NSString*updateMsg = [NSStringstringWithFormat:@"%@",appInfo.releaseNotes];#if __IPHONE_OS_VERSION_MIN_REQUIRED< __IPHONE_8_0
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"发现新版本" message:updateMsg delegate:self cancelButtonTitle:@"关闭" otherButtonTitles:@"更新", nil];
[alertView show];
#endif
#if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_8_0UIAlertController*alert = [UIAlertControlleralertControllerWithTitle:@"发现新版本"message:updateMsg preferredStyle:UIAlertControllerStyleAlert]; [alert addAction:[UIAlertActionactionWithTitle:@"关闭"style:UIAlertActionStyleDefaulthandler:^(UIAlertAction* _Nonnull action) { }]]; [alert addAction:[UIAlertActionactionWithTitle:@"更新"style:UIAlertActionStyleDefaulthandler:^(UIAlertAction* _Nonnull action) { [selfopenInAppStoreForAppURL:self.appInfo.trackViewUrl]; }]]; [[selfwindow].rootViewController presentViewController:alert animated:YEScompletion:nil];#endif}];}-(UIWindow*)window{UIWindow*window =nil;iddelegate = [[UIApplicationsharedApplication] delegate];if([delegate respondsToSelector:@selector(window)]) { window = [delegate performSelector:@selector(window)]; }else{ window = [[UIApplicationsharedApplication] keyWindow]; }returnwindow;}-(void)checkNewVersionAndCustomAlert:(NewVersionBlock)newVersion{ [selfversionRequest:^(XHAppInfo *appInfo) {if(newVersion) newVersion(appInfo); }];}-(void)versionRequest:(NewVersionBlock)newVersion{ [XHVersionRequest xh_versionRequestSuccess:^(NSDictionary*responseDict) {NSIntegerresultCount = [responseDict[@"resultCount"] integerValue];if(resultCount==1) {NSArray*resultArray = responseDict[@"results"];NSDictionary*result = resultArray.firstObject; XHAppInfo *appInfo = [[XHAppInfo alloc] initWithResult:result];NSString*version = appInfo.version;self.appInfo = appInfo;if([selfisNewVersion:version])//新版本{if(newVersion) newVersion(self.appInfo); } } } failure:^(NSError*error) { }];}#if __IPHONE_OS_VERSION_MIN_REQUIRED< __IPHONE_8_0
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
if(buttonIndex==1)
{
[self openInAppStoreForAppURL:self.appInfo.trackViewUrl];
}
}
#endif
-(void)openInAppStoreForAppURL:(NSString *)appURL{
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:appURL]];
}
- (void)productViewControllerDidFinish:(SKStoreProductViewController *)viewController {
[viewController dismissViewControllerAnimated:YES completion:nil];
}
//是否是新版本
-(BOOL)isNewVersion:(NSString *)newVersion{
return [self newVersion:newVersion moreThanCurrentVersion:[self currentVersion]];
}
-(NSString * )currentVersion{
NSString *key = @"CFBundleShortVersionString";
NSString * currentVersion = [NSBundle mainBundle].infoDictionary[key];
return currentVersion;
}
-(BOOL)newVersion:(NSString *)newVersion moreThanCurrentVersion:(NSString *)currentVersion{
if([currentVersion compare:newVersion options:NSNumericSearch]==NSOrderedAscending)
{
return YES;
}
return NO;
}
五.调用:
导入头文件 #import "XHVersion.h" ,在需要检测新版本的地方调用下面代码
//1.新版本检测(使用默认提示框)[XHVersion checkNewVersion];//2.如果你需要自定义提示框,请使用下面方法[XHVersioncheckNewVersionAndCustomAlert:^(XHAppInfo *appInfo) {//appInfo为新版本在AppStore相关信息//请在此处自定义您的提示框//......}];
六.小结:
细看代码的同学可能会发现,笔者并没有通过AppId去拉取该App的版本信息,而是通过bundleId去查询的.
