iOS10.3新增了更换备用icon的API

// Pass `nil` to use the primary application icon. The completion handler will be invoked asynchronously on an arbitrary background queue; be sure to dispatch back to the main queue before doing any further UI work.
- (void)setAlternateIconName:(nullable NSString *)alternateIconName completionHandler:(nullable void (^)(NSError *_Nullable error))completionHandler NS_EXTENSION_UNAVAILABLE("Extensions may not have alternate icons") API_AVAILABLE(ios(10.3), tvos(10.2));

实现步骤

• 配置Info.plist文件
  因为要实现轮换icon,所以需要准备两个icon图片,icon、icon2均为图片名称

<key>CFBundleIcons</key>
    <dict>
        <key>CFBundleAlternateIcons</key>
        <dict>
            <key>icon</key>
            <dict>
                <key>CFBundleIconFiles</key>
                <array>
                    <string>icon</string>
                </array>
            </dict>
            <key>icon2</key>
            <dict>
                <key>CFBundleIconFiles</key>
                <array>
                    <string>icon2</string>
                </array>
            </dict>
        </dict>
    </dict>

• 代码实现

if ([[UIApplication sharedApplication].alternateIconName isEqualToString:@"icon2"]) {
    [[UIApplication sharedApplication] setAlternateIconName:@"icon" completionHandler:^(NSError * _Nullable error) {
        if (error) {
            NSLog(@"set AlternateIcon error: %@",error.description);
        }
    }];
}else{
    [[UIApplication sharedApplication] setAlternateIconName:@"icon2" completionHandler:^(NSError * _Nullable error) {
        if (error) {
            NSLog(@"set AlternateIcon error: %@",error.description);
        }
    }];
}

AlternateIcon screenshot

同样,iOS10.3也更新了AppStore评分系统API

/** Controller class to request a review from the current user */
SK_EXTERN_CLASS_AVAILABLE(10_3) __TVOS_UNAVAILABLE @interface SKStoreReviewController : NSObject

/** Request StoreKit to ask the user for an app review. This may or may not show any UI.
 *
 *  Given this may not succussfully present an alert to the user, it is not appropriate for use
 *  from a button or any other user action. For presenting a write review form, a deep link is 
 *  available to the App Store by appending the query params "action=write-review" to a product URL.
 */
+ (void)requestReview;

代码实现

 [SKStoreReviewController requestReview];

SKStoreReviewController