应用程序内评论API是谷歌在2020年8月推出的一个期待已久的功能，就像苹果在2016年为iOS应用程序推出的功能一样。

有了这个API，用户不用离开就可以对应用程序进行审查和评分。谷歌建议开发人员不要强迫用户一直进行评分或审查，因为这个API在一段时间内为每个用户分配了应用程序的特定使用配额。开发人员当然不能在他们的任务中间用一个诱人的弹出窗口打断用户。

Java

In Application level (build.gradle)

       dependencies {
            // This dependency from the Google Maven repository.
            // include that repository in your project's build.gradle file.
            implementation 'com.google.android.play:core:1.9.0'
        }

 

boolean isGMSAvailable = false;
int result = GoogleApiAvailability.getInstance().isGooglePlayServicesAvailable(this);
isGMSAvailable = (com.google.android.gms.common.ConnectionResult.SUCCESS == result);
  if(isGMSAvailable)
  {
    ReviewManager manager = ReviewManagerFactory.create(this);
    Task<ReviewInfo> request = manager.requestReviewFlow();
    request.addOnCompleteListener(task -> {
      try {
        if (task.isSuccessful())
        {
           // getting ReviewInfo object
            ReviewInfo reviewInfo = task.getResult();
            Task<Void> flow = manager.launchReviewFlow(this, reviewInfo);
            flow.addOnCompleteListener(task2 -> {
                // The flow has finished. The API does not indicate whether the user
                // reviewed or not, or even whether the review dialog was shown. Thus,
                // no matter the result, we continue our app flow.
                   });
        } else 
        {
            // There was some problem, continue regardless of the result
           // call old method for rating and user will land in Play Store App page
           Utils.rateOnPlayStore(this);       
        }
        } catch (Exception ex)
        {
            Log.e("review Ex", "review & rate: "+ ex);
                 }
                });
    }
    else
    {
       // if user has not installed Google play services in his/her device you land them to 
       // specific store e.g. Huawei AppGallery or Samsung Galaxy Store 
       Utils.rateOnOtherStore(this);
    }   

科特林

val manager = ReviewManagerFactory.create(context)
val request = manager.requestReviewFlow()
request.addOnCompleteListener { request ->
    if (request.isSuccessful) {
        // We got the ReviewInfo object
        val reviewInfo = request.result
    } else {
        // There was some problem, continue regardless of the result.
    }
}

//Launch the in-app review flow

val flow = manager.launchReviewFlow(activity, reviewInfo)
flow.addOnCompleteListener { _ ->
    // The flow has finished. The API does not indicate whether the user
    // reviewed or not, or even whether the review dialog was shown. Thus, no
    // matter the result, we continue our app flow.
}

对于测试使用FakeReviewManager

//java
ReviewManager manager = new FakeReviewManager(this);

//Kotlin
val manager = FakeReviewManager(context)

我用以下代码从我的应用程序打开Play Store:

            val uri: Uri = Uri.parse("market://details?id=$packageName")
            val goToMarket = Intent(Intent.ACTION_VIEW, uri)
            // To count with Play market backstack, After pressing back button, 
            // to taken back to our application, we need to add following flags to intent. 
            goToMarket.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY or
                    Intent.FLAG_ACTIVITY_NEW_DOCUMENT or
                    Intent.FLAG_ACTIVITY_MULTIPLE_TASK)
            try {
                startActivity(goToMarket)
            } catch (e: ActivityNotFoundException) {
                startActivity(Intent(Intent.ACTION_VIEW,
                        Uri.parse("http://play.google.com/store/apps/details?id=$packageName")))
            }

选项2: 是使用resolveActivity而不是try. catch

if (sendIntent.resolveActivity(getPackageManager()) != null) {
     startActivity(chooser);
} else {
    openUrl();
}

您总是可以从PackageManager类调用getInstalledPackages()，并检查以确保市场类已安装。你也可以使用queryIntentActivities()来确保你构造的Intent能够被某些东西处理，即使它不是市场应用程序。这可能是最好的方法，因为它最灵活，最健壮。

你可以查看市场应用程序是否在那里

Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
intent.setData(Uri.parse("market://search?q=foo"));
PackageManager pm = getPackageManager();
List<ResolveInfo> list = pm.queryIntentActivities(intent, 0);

如果列表中至少有一个条目，那么市场就在那里。

你可以使用下面的方法在你的应用页面上启动Android Market，它会更加自动化:

Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse("market://details?id=" + getPackageName()));
startActivity(i);

如果你想在模拟器上测试这个，你可能没有安装市场: 详情请参见以下链接:

如何在谷歌Android模拟器中开启Android市场

在Android模拟器上安装谷歌播放

我使用以下方法结合这个和这个答案，而不使用基于异常的编程，也支持api 21之前的意图标志。

@SuppressWarnings("deprecation")
private Intent getRateIntent()
{
  String url        = isMarketAppInstalled() ? "market://details" : "https://play.google.com/store/apps/details";
  Intent rateIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(String.format("%s?id=%s", url, getPackageName())));
  int intentFlags   = Intent.FLAG_ACTIVITY_NO_HISTORY | Intent.FLAG_ACTIVITY_MULTIPLE_TASK;
  intentFlags      |= Build.VERSION.SDK_INT >= 21 ? Intent.FLAG_ACTIVITY_NEW_DOCUMENT : Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET;
  rateIntent.addFlags(intentFlags);
  return rateIntent;
}

private boolean isMarketAppInstalled()
{
  Intent marketIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("market://search?q=anyText"));
  return getPackageManager().queryIntentActivities(marketIntent, 0).size() > 0;
}


// use
startActivity(getRateIntent());

由于意图标志FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET已从API 21弃用，我在getRateIntent方法上使用@SuppressWarnings(“弃用”)标签，因为我的应用程序目标SDK低于API 21。

我还尝试了他们网站上建议的谷歌官方方式(2019年12月6日)。据我所知，如果没有安装Play Store应用程序，它就无法处理这种情况:

Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse(
    "https://play.google.com/store/apps/details?id=com.example.android"));
intent.setPackage("com.android.vending");
startActivity(intent);

下面是我使用BuildConfig类的版本:

Intent marketIntent = new Intent(Intent.ACTION_VIEW, uri);

marketIntent.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY | Intent.FLAG_ACTIVITY_MULTIPLE_TASK);

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
    marketIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_DOCUMENT);
}

try {
    startActivity(marketIntent);
} catch (ActivityNotFoundException e) {
    startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("https://play.google.com/store/apps/details?id=" + BuildConfig.APPLICATION_ID)));
}

自从这个答案以来，很多时间已经过去了，现在有一种方法可以将谷歌播放审查窗口附加到你的应用程序

https://developer.android.com/guide/playcore/in-app-review

// In your app’s build.gradle file:
...
dependencies {
    // This dependency is downloaded from the Google’s Maven repository.
    // So, make sure you also include that repository in your project's build.gradle file.
    implementation 'com.google.android.play:core:1.10.0'

    // For Kotlin users also add the Kotlin extensions library for Play Core:
    implementation 'com.google.android.play:core-ktx:1.8.1'
    ...
}

然后，当您想要显示速率弹出时

final ReviewManager manager = ReviewManagerFactory.create(context);
final Task<ReviewInfo> request = manager.requestReviewFlow();
request.addOnCompleteListener(task -> {
    if (task.isSuccessful()) {
        // We can get the ReviewInfo object
        ReviewInfo reviewInfo = task.getResult();
        Task<Void> flow = manager.launchReviewFlow(context, reviewInfo);
flow.addOnCompleteListener(task -> {
    // The flow has finished. The API does not indicate whether the user
    // reviewed or not, or even whether the review dialog was shown. Thus, no
    // matter the result, we continue our app flow.
});
    } else {
        // There was some problem, log or handle the error code.
        @ReviewErrorCode int reviewErrorCode = ((TaskException) task.getException()).getErrorCode();
    }
});

正如在评论中所说的，API不会让你知道用户给出了什么评级

谷歌也有严格的指导方针使用这个api，频率你被允许显示窗口是有限的，也不允许诱导用户给你一个好的评价。你可以在上面的链接中查看完整的文档和指南