我看过一些答案，但对它们不满意并得到了一些想法，但不知道如何正确使用它，使它以正确的方式执行，虽然我认为它应该在App代理中使用didFinishLaunching，但在没有任何麻烦的情况下实现它之前，我想确认一下。
SKStoreReviewController 只适用于iOS 10.3，据我所读，有人能用一点Swift和Objective C的代码进行解释吗？
更新：
实际上，我对调用requestReview()方法感到困惑，在哪里需要调用此方法？在rootViewController的viewDidLoad还是在appDelegate的didFinishlaunching中？
谢谢。
SKStoreReviewController可用于iOS 10.3及更高版本。
根据苹果文档：
您可以在用户使用应用程序时要求他们对其进行评分或评论，而无需将他们发送到App Store。您确定调用API的用户体验要点，系统会负责其余操作。
为了在应用程序内显示评分/评论，您必须添加StoreKit框架。
请查找以下两种语言的样本代码：
Objective C:
#import <StoreKit/StoreKit.h>
- (void)DisplayReviewController {
if([SKStoreReviewController class]){
[SKStoreReviewController requestReview] ;
}
}
从xCode 9开始，您可以这样做：
#import <StoreKit/StoreKit.h>
- (void)DisplayReviewController {
if (@available(iOS 10.3, *)) {
[SKStoreReviewController requestReview];
}
}
迅捷:
import StoreKit
func DisplayReviewController {
if #available( iOS 10.3,*){
SKStoreReviewController.requestReview()
}
}
@import StoreKit。使用 Apple 框架时，阅读和理解起来会更加容易。 - Ethan Allenif(@available(iOS 10.3, *)) 替代 if ([SKStoreReviewController class])。 - vmeyer对于Swift语言，
import StoreKit
当您想要请求时，请添加以下代码。
if #available(iOS 10.3, *) {
SKStoreReviewController.requestReview()
}
对于Objective C，
1-) 从Link Binary With Library中添加了StoreKit框架。
2-) 添加了框架。
#import <StoreKit/StoreKit.h>
3-) 在需要调用App-Review弹窗的位置添加以下代码。在这个例子中，我将其添加到了viewDidLoad方法中。
- (void)viewDidLoad {
[super viewDidLoad];
[SKStoreReviewController requestReview];
}
4-) 以下是苹果公司的说明，当你在调试模式下进行测试时，请注意：
当你在应用程序还处于开发模式时调用此方法，将始终显示一个评分/评论请求视图，以便您测试用户界面和体验。但是，当您在使用TestFlight分发的应用程序中调用它时，此方法没有任何效果。
你可以在用户打开你的应用程序时，每10次(10,20,30,...100)显示评论请求。因此，首先需要创建一个文件，负责保存您的应用程序在用户默认设置中的打开计数，检索应用程序打开计数，并显示requestReview()。请查看以下代码片段，这个文件将会负责一切。SKStoreReviewController.requestReview()
import Foundation
import StoreKit
class SpsRateManager {
private static let instance = SpsRateManager()
var shareinstance: SpsRateManager{
return .instance
}
static func incrementAppOpenedCount() { // called from appdelegate didfinishLaunchingWithOptions:
let userdefault = UserDefaults.standard
let savedvalue = userdefault.integer(forKey: Configuration.APPLICATIONOPENCOUNTSTATUS)
if savedvalue == 0 {
print("Not saved ")
userdefault.set(1, forKey: Configuration.APPLICATIONOPENCOUNTSTATUS)
}
else{
userdefault.set(savedvalue+1, forKey: Configuration.APPLICATIONOPENCOUNTSTATUS)
}
}
static func checkAppopencountandProvideReview(){
let userdefault = UserDefaults.standard
let appopencountvalue = userdefault.integer(forKey: Configuration.APPLICATIONOPENCOUNTSTATUS)
if appopencountvalue % 10 == 0 {
print("its been 10 times so ask for review ")
SpsRateManager().requestReview()
}
else{
print("not enough open count dont show ")
}
}
fileprivate func requestReview() {
if #available(iOS 10.3, *) {
SKStoreReviewController.requestReview()
} else {
// Fallback on earlier versions
// Try any other 3rd party or manual method here.
}
}
}
在korat上面的出色答案中，我想再补充一点......
如果你正在支持一个传统的Objective-C应用程序，并且想在几个应用程序打开后调用DisplayReviewController，则需要执行以下操作：
在AppDelegate.m类中添加以下内容：
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
int count = [[NSUserDefaults standardUserDefaults] integerForKey:@"LaunchCount"];
if(count < 0) count = 0;
[[NSUserDefaults standardUserDefaults] setInteger:count+1 forKey:@"LaunchCount"];
}
//The application was in background and become active
- (void)applicationWillEnterForeground:(UIApplication *)application {
int count = [[NSUserDefaults standardUserDefaults] integerForKey:@"LaunchCount"];
if(count < 0) count = 0;
[[NSUserDefaults standardUserDefaults] setInteger:count+1 forKey:@"LaunchCount"];
}
- (void)applicationDidBecomeActive {
if ([[NSUserDefaults standardUserDefaults] integerForKey:@"LaunchCount"] == 5) {
[self DisplayReviewController];
}
}
我认为你可以实现一种方法来计算用户运行应用的次数，并将其存储在UserDefaults中，如果计数数字是5或10或类似的数字（这取决于你），则调用requestReview()，这样你就有更多获得好评的机会。
/// Requests review from user based on certain conditions.
/// 1. Should have recorderd at least 3 recordings (if you want to force attept a review ask don't pass any parameter)
/// 2. Has not already asked for a review today
/// 3. A probabitly of 50% if will ask today
/// 4. If review has not been asked more than 30 times in the same year for the current version
/// - Parameter numberOfRecordings: If the number of recordings is greater than 3 then a review will be asked.
func askForReview(numberOfRecordings: Int = 5) {
let defaults = UserDefaults.standard
let lastAskedReviewAt = defaults.double(forKey: lastAskedReviewAtKey)
let dateStringForLastReviewAsk = getDateString(from: lastAskedReviewAt)
let dateForLastReviewAsk = getDate(from: dateStringForLastReviewAsk) ?? Date(timeIntervalSince1970: 0)
let askedReviewToday = Calendar.current.isDateInToday(dateForLastReviewAsk)
var appReviewRequestsCount = defaults.integer(forKey: appReviewRequestsCountKey)
if Date().localDate().years(from: dateForLastReviewAsk) >= 1 {
defaults.setValue(0, forKey: appReviewRequestsCountKey)
appReviewRequestsCount = 0
}
var isAskingReviewForSameVersion = false
if let currentlyInstalledVersion = getInstalledVersionNumber(), let lastReviewAskedForVersion = defaults.string(forKey: lastReviewAskedForVersionKey) {
if currentlyInstalledVersion == lastReviewAskedForVersion {
isAskingReviewForSameVersion = true
} else {
appReviewRequestsCount = 0
defaults.setValue(0, forKey: appReviewRequestsCountKey)
}
}
let askingReviewTooManyTimes = appReviewRequestsCount >= 30 && isAskingReviewForSameVersion
let totalRecordingsTillDateCount = defaults.integer(forKey: totalRecordingsTillDateCountKey)
let localNumberOfRecordings = max(numberOfRecordings, totalRecordingsTillDateCount)
if localNumberOfRecordings > 3 && Bool.random() && !askedReviewToday && !askingReviewTooManyTimes {
SKStoreReviewController.requestReview()
defaults.setValue(Date().timeIntervalSince1970, forKey: lastAskedReviewAtKey)
if let versionNumber = getInstalledVersionNumber() {
defaults.setValue(versionNumber, forKey: lastReviewAskedForVersionKey)
}
defaults.setValue(appReviewRequestsCount + 1, forKey: appReviewRequestsCountKey)
}
}
字典键：
let lastAskedReviewAtKey = "LastAskedReviewAt"
let appReviewRequestsCountKey = "AppReviewRequestsCount"
let lastReviewAskedForVersionKey = "AskedReviewForVersion"
let appVersionNumberKey = "CFBundleShortVersionString"
/// Get a string representation in current local time for a timestamp
/// - Parameter timestamp: Timestamp to be converted to date string
/// - Returns: A date string from passed timestamp in dd MMM yyy format
func getDateString(from timestamp: Double) -> String {
let dateFormatter = getDateFormatter()
let date = Date(timeIntervalSince1970: timestamp)
let dateString = dateFormatter.string(from: date)
return dateString
}
/// Get a date from a string of date format dd MMM yyyy.
/// - Parameter dateString: Date string formated as dd MMM yyyy
/// - Returns: A date object by parsing date in dd MMM yyy format
func getDate(from dateString: String) -> Date? {
// print("Date String: ", dateString)
let dateFormatter = getDateFormatter()
return dateFormatter.date(from: dateString) ?? nil
}
//Ref: https://dev59.com/ll4d5IYBdhLWcg3wFPQ7
extension Date {
/// Returns the amount of years from another date
func years(from date: Date) -> Int {
return Calendar.current.dateComponents([.year], from: date, to: self).year ?? 0
}
/// Returns the amount of months from another date
func months(from date: Date) -> Int {
return Calendar.current.dateComponents([.month], from: date, to: self).month ?? 0
}
/// Returns the amount of weeks from another date
func weeks(from date: Date) -> Int {
return Calendar.current.dateComponents([.weekOfMonth], from: date, to: self).weekOfMonth ?? 0
}
/// Returns the amount of days from another date
func days(from date: Date) -> Int {
return Calendar.current.dateComponents([.day], from: date, to: self).day ?? 0
}
/// Returns the amount of hours from another date
func hours(from date: Date) -> Int {
return Calendar.current.dateComponents([.hour], from: date, to: self).hour ?? 0
}
/// Returns the amount of minutes from another date
func minutes(from date: Date) -> Int {
return Calendar.current.dateComponents([.minute], from: date, to: self).minute ?? 0
}
/// Returns the amount of seconds from another date
func seconds(from date: Date) -> Int {
return Calendar.current.dateComponents([.second], from: date, to: self).second ?? 0
}
/// Returns the a custom time interval description from another date
func offset(from date: Date) -> String {
if years(from: date) > 0 { return "\(years(from: date))y" }
if months(from: date) > 0 { return "\(months(from: date))M" }
if weeks(from: date) > 0 { return "\(weeks(from: date))w" }
if days(from: date) > 0 { return "\(days(from: date))d" }
if hours(from: date) > 0 { return "\(hours(from: date))h" }
if minutes(from: date) > 0 { return "\(minutes(from: date))m" }
if seconds(from: date) > 0 { return "\(seconds(from: date))s" }
return ""
}
}
//Ref: https://dev59.com/214c5IYBdhLWcg3wCGVJ
extension Date {
func localDate() -> Date {
let nowUTC = Date()
let timeZoneOffset = Double(TimeZone.current.secondsFromGMT(for: nowUTC))
guard let localDate = Calendar.current.date(byAdding: .second, value: Int(timeZoneOffset), to: nowUTC) else {return Date()}
return localDate
}
}
func getInstalledVersionNumber() -> String? {
guard let infoDictionary = Bundle.main.infoDictionary, let currentVersionNumber = infoDictionary[appVersionNumberKey] as? String else { return nil}
return currentVersionNumber
}