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:
#import <Foundation/Foundation.h>
typedef void(^RequestSucess) (NSDictionary * responseDict);
typedef void(^RequestFailure) (NSError *error);
@interface XHVersionRequest : 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)success failure:(RequestFailure)failure;
@end
- 4.在XHVersionRequest.m文件中实现
#import "XHVersionRequest.h"
@implementation XHVersionRequest
+(void)xh_versionRequestSuccess:(RequestSucess)success failure:(RequestFailure)failure{
NSDictionary *infoDict = [[NSBundle mainBundle] infoDictionary];
NSString *bundleId = infoDict[@"CFBundleIdentifier"];
NSURL *URL = [NSURL URLWithString:[NSString stringWithFormat:@"http://itunes.apple.com/lookup?bundleId=%@",bundleId]];
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
NSURLRequest *request = [NSURLRequest requestWithURL:URL];
NSURLSessionDataTask *dataTask = [[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
dispatch_async(dispatch_get_main_queue(), ^{
if(!error)
{
NSDictionary *responseDict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error: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 <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
@interface XHAppInfo : 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"
@implementation XHAppInfo
- (instancetype)initWithResult:(NSDictionary *)result{
self = [super init];
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"];
}
return self;
}
@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 <Foundation/Foundation.h>
#import "XHAppInfo.h"
typedef void(^NewVersionBlock)(XHAppInfo *appInfo);
@interface XHVersion : 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"
@interface XHVersion()<UIAlertViewDelegate>
@property(nonatomic,strong)XHAppInfo *appInfo;
@end
@implementation XHVersion
+(void)checkNewVersion{
[[XHVersion shardManger] checkNewVersion];
}
+(void)checkNewVersionAndCustomAlert:(NewVersionBlock)newVersion{
[[XHVersion shardManger] checkNewVersionAndCustomAlert:newVersion];
}
#pragma mark - private
+(XHVersion *)shardManger{
static XHVersion *instance = nil;
static dispatch_once_t oneToken;
dispatch_once(&oneToken,^{
instance = [[XHVersion alloc] init];
});
return instance;
}
-(void)checkNewVersion{
[self versionRequest:^(XHAppInfo *appInfo) {
NSString *updateMsg = [NSString stringWithFormat:@"%@",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_0
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"发现新版本" message:updateMsg preferredStyle:UIAlertControllerStyleAlert];
[alert addAction:[UIAlertAction actionWithTitle:@"关闭" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
}]];
[alert addAction:[UIAlertAction actionWithTitle:@"更新" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
[self openInAppStoreForAppURL:self.appInfo.trackViewUrl];
}]];
[[self window].rootViewController presentViewController:alert animated:YES completion:nil];
#endif
}];
}
-(UIWindow *)window{
UIWindow *window = nil;
id<UIApplicationDelegate> delegate = [[UIApplication sharedApplication] delegate];
if ([delegate respondsToSelector:@selector(window)]) {
window = [delegate performSelector:@selector(window)];
} else {
window = [[UIApplication sharedApplication] keyWindow];
}
return window;
}
-(void)checkNewVersionAndCustomAlert:(NewVersionBlock)newVersion{
[self versionRequest:^(XHAppInfo *appInfo) {
if(newVersion) newVersion(appInfo);
}];
}
-(void)versionRequest:(NewVersionBlock)newVersion{
[XHVersionRequest xh_versionRequestSuccess:^(NSDictionary *responseDict) {
NSInteger resultCount = [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([self isNewVersion: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
[XHVersion checkNewVersionAndCustomAlert:^(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.
- 代码地址:https://github.com/CoderZhuXH/XHVersion