一.前言:
- 1.iOS開發中,有時會有這種需求,在AppStore上出現新版本時,應用內彈窗提示用戶更新.
- 2.之前在網上看到一種方法通過AppId查詢更新的,但是有時候APP沒上線或開發賬號還沒注冊下來時我們并不知道AppId,此時就要把這個功能做上去,該怎么辦呢?
- 3.現介紹一種簡便的方法給大家,不需要提供AppId等任何信息,即可實現查詢AppStore中是否有新版本,并提示更新.
- 4.代碼地址:見篇尾.
二.效果:
效果.png
三.實現邏輯:
- 1.先查詢AppStore中該App的信息(包含版本,更新日志等)
- 2.和App當前版本進行比較,比當前版本新,彈窗并顯示更新日志,提示用戶跳轉到AppStore更新
- 3.為了方便在以后開發中調用,筆者實現時進行簡單封裝.
四.直接上代碼:
-4.1獲取AppStore中該App的版本信息
- 1.為了不依賴其他數據請求庫,筆者采用系統方法做數據請求,當然你們也可以使用AFN等框架請求數據.
- 2.新建一個請求版本信息的類繼承NSObject筆者取名 XHVersionRequest
- 3.在XHVersionRequest.h文件中添加請求成功和失敗回調和數據請求方法,代碼如下:
#import <Foundation/Foundation.h>
typedef void(^RequestSucess) (NSDictionary * responseDict);
typedef void(^RequestFailure) (NSError *error);
@interface XHVersionRequest : NSObject
/**
* 從AppStore中獲取App信息
*
* @param success 成功回調
* @param failure 失敗回調
*/
+(void)xh_versionRequestSuccess:(RequestSucess)success failure:(RequestFailure)failure;
@end
- 4.在XHVersionRequest.m文件中實現
#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解析請求回來App信息數據
1.新建一個App信息模型繼承NSObject,筆者取名XHAppInfo,為減少依賴,筆者暫不采用JSON -> Model 框架解析數據.
2.在XHAppInfo.h和XHAppInfo.m中分別添加以下代碼:
XHAppInfo.h文件
#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
@interface XHAppInfo : NSObject
/**
* 版本號
*/
@property(nonatomic,copy) NSString * version;
/**
* 更新日志
*/
@property(nonatomic,copy)NSString *releaseNotes;
/**
* 更新時間
*/
@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比較與當前版本大小關系,提示更新
1.筆者新建一個類XHVersion(繼承NSObject)來處理版本比較和彈窗
2.為了調用更靈活,我們在XHVersion.h文件中添加如下兩個方法:1.一個是使用默認彈窗,2.一個是回調新版本信息,開發者自定義彈窗
XHVersion.h文件
#import <Foundation/Foundation.h>
#import "XHAppInfo.h"
typedef void(^NewVersionBlock)(XHAppInfo *appInfo);
@interface XHVersion : NSObject
/**
* 檢測新版本(使用默認提示框)
*/
+(void)checkNewVersion;
/**
* 檢測新版本(自定義提示框)
*
* @param newVersion 新版本信息回調
*/
+(void)checkNewVersionAndCustomAlert:(NewVersionBlock)newVersion;
@end
- XHVersion.m文件中進行實現,代碼如下
#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:@"發現新版本" message:updateMsg delegate:self cancelButtonTitle:@"關閉" otherButtonTitles:@"更新", nil];
[alertView show];
#endif
#if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_8_0
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"發現新版本" message:updateMsg preferredStyle:UIAlertControllerStyleAlert];
[alert addAction:[UIAlertAction actionWithTitle:@"關閉" 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.調用:
- 導入頭文件 #import "XHVersion.h" ,在需要檢測新版本的地方調用下面代碼
//1.新版本檢測(使用默認提示框)
[XHVersion checkNewVersion];
//2.如果你需要自定義提示框,請使用下面方法
[XHVersion checkNewVersionAndCustomAlert:^(XHAppInfo *appInfo) {
//appInfo為新版本在AppStore相關信息
//請在此處自定義您的提示框
//......
}];
六.小結:
- 細看代碼的同學可能會發現,筆者并沒有通過AppId去拉取該App的版本信息,而是通過bundleId去查詢的.
- 代碼地址:https://github.com/CoderZhuXH/XHVersion
