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NSObject擴展
// // NSObject+Extension.h // CloudShopping // // Created by sixiaobo on 14-7-8. // Copyright (c) 2014年 com.Uni2uni. All rights reserved. // #import <Foundation/Foundation.h> // 應用在app store上的ID #define kAppIDInAppStore @"" // 發布以後才有APP ID #define kAppStoreVersionKey @"AppStoreVersionKey" /*! * @brief 通用輔助擴展類 * @author huangyibiao */ @interface NSObject (Extension) // 把對象轉換成JSON格式數據，如果轉換失敗，返回nil + (NSMutableData *)JSONDataWithObject:(id)object; //! 保存應用在AppStore上版本到本地 + (void)saveAppStoreVersionToUserDefaults; //! 是否需要連網更新 + (BOOL)isAppNeedToUpdate:(BOOL)needNetwork; // 參數是要判斷的應用的URLSchemes + (BOOL)hadInstallApp:(NSString *)urlSchemes; // 能否打開應用 + (BOOL)canOpenApp:(NSString *)itunesUrlString; // 打開自己開發的應用 + (void)openApp:(NSString *)urlSchemes; //! 進入AppStore + (void)goToAppStoreWithURLString:(NSString *)itunesUrlString; @end
//
// NSObject+Extension.m
// CloudShopping
//
// Created by sixiaobo on 14-7-8.
// Copyright (c) 2014年 com.Uni2uni. All rights reserved.
//
#import "NSObject+Extension.h"
@implementation NSObject (Extension)
#pragma mark - 獲取JSON數據
// 把對象轉換成JSON格式數據，如果轉換失敗，返回nil
+ (NSMutableData *)JSONDataWithObject:(id)object {
NSMutableData *postBodyData = nil;
if ([NSJSONSerialization isValidJSONObject:object]) {
NSError *error = nil;
NSData *postData = [NSJSONSerialization dataWithJSONObject:object
options:NSJSONWritingPrettyPrinted
error:&error];
if (error) {
NSLog(@"error: %@", error.description);
} else {
postBodyData = [[NSMutableData alloc] initWithData:postData];
}
}
return postBodyData;
}
#pragma mark - 獲取最新版本
+ (NSString *)obtainLatestAppVersion {
// NSString *urlPath = [NSString stringWithFormat:@"https://itunes.apple.com/lookup?id=%@", kAppIDInAppStore];
NSString *latestVersion = nil;
NSDictionary *jsonData = nil; // 這裏需要從網絡請求到，這裏隻是寫成nil，在發布後再實現
NSArray *infoArray = [jsonData objectForKey:@"results"];
if([infoArray count] > 0) {
NSDictionary *releaseInfo = [infoArray objectAtIndex:0];
latestVersion = [releaseInfo objectForKey:@"version"];
// 在以前返回的值是如下格式："4.0"，後來變成了："V4.0",所以需要去掉非數值字符。
latestVersion = [latestVersion stringByTrimmingCharactersInSet:[NSCharacterSet letterCharacterSet]];
}
return latestVersion;
}
#pragma mark - 保存應用在AppStore上的版本號到本地
+ (void)saveAppStoreVersionToUserDefaults {
NSString *storeVersion = [kUserDefaults stringForKey:kAppStoreVersionKey];
NSString *bundleVersion = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleVersion"];
// 應用當前的version，應該小於等於store上的version。如果不是，則說明應用升級後，
// UserDefault中保存的store version未更新，需重新設。
if(nil == storeVersion || [self version:bundleVersion isBiggerThan:storeVersion]) {
storeVersion = [self obtainLatestAppVersion]; // 獲取最新的版本
if (storeVersion) {
[kUserDefaults setObject:storeVersion forKey:kAppStoreVersionKey];
}
}
return;
}
#pragma mark - 是否需要更新應用
+ (BOOL)isAppNeedToUpdate:(BOOL)needNetwork {
NSString *version = nil;
if (needNetwork) { // 獲取應用在appStore上的版本
version = [self obtainLatestAppVersion];
if (version) { // 保存到本地
[kUserDefaults setObject:version forKey:kAppStoreVersionKey];
}
} else { // 直接從本地獲取
version = [kUserDefaults stringForKey:kAppStoreVersionKey];
}
if (!version) {
return NO;
}
NSString *bundleVersion = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleVersion"];
if ([self version:version isBiggerThan:bundleVersion]) {
return YES;
}
return NO;
}
+ (BOOL)version:(NSString *)versionA isBiggerThan:(NSString *)versionB {
NSArray *a = [versionA componentsSeparatedByString:@"."];
NSArray *b = [versionB componentsSeparatedByString:@"."];
unsigned aa = [[a objectAtIndex:0] intValue];
unsigned ab = [a count] > 1 ? [[a objectAtIndex:1] intValue] : 0;
unsigned cc = [a count] > 2 ? [[a objectAtIndex:2] intValue] : 0;
unsigned ba = [[b objectAtIndex:0] intValue];
unsigned bb = [b count] > 1 ? [[b objectAtIndex:1] intValue] : 0;
unsigned bc = [b count] > 2 ? [[b objectAtIndex:2] intValue] : 0;
return ((aa > ba) || (aa == ba && ab > bb) || (aa == ba && ab == bb && cc > bc));
}
// 參數是要判斷的應用的URLSchemes
+ (BOOL)hadInstallApp:(NSString *)urlSchemes {
if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:urlSchemes]]) {
return YES;
}
return NO;
}
// 能否打開應用
+ (BOOL)canOpenApp:(NSString *)itunesUrlString {
if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:itunesUrlString]]) {
return YES;
}
return NO;
}
+ (void)openApp:(NSString *)urlSchemes {
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:urlSchemes]];
return;
}
#pragma mark - 進入AppStore應用
+ (void)goToAppStoreWithURLString:(NSString *)itunesUrlString {
#if TARGET_IPHONE_SIMULATOR
NSLog(@"虛擬機不支持APP Store.打開iTunes不會有效果。");
#else
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:itunesUrlString]];
#endif
return;
}
@end
最後更新：2017-04-03 05:39:42