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生产环境中偶尔发生“Error inflating class android.webkit.WebView”错误。

androidwebview
42

我的应用程序在Google Play上，大部分设备上都可以正常运行（数千用户）。但在极少数情况下（每日活跃用户的一小部分），当我在onCreateView方法中填充片段的布局时，会出现Error inflating class android.webkit.WebView。 完整的堆栈跟踪如下：

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.tapmedia.tapito/com.tapmedia.tapito.LockscreenActivity}: android.view.InflateException: Binary XML file line #20: Error inflating class android.webkit.WebView
   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2694)
   at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2759)
   at android.app.ActivityThread.access$900(ActivityThread.java:178)
   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1449)
   at android.os.Handler.dispatchMessage(Handler.java:102)
   at android.os.Looper.loop(Looper.java:145)
   at android.app.ActivityThread.main(ActivityThread.java:5944)
   at java.lang.reflect.Method.invoke(Method.java)
   at java.lang.reflect.Method.invoke(Method.java:372)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
Caused by: android.view.InflateException: Binary XML file line #20: Error inflating class android.webkit.WebView
   at android.view.LayoutInflater.createView(LayoutInflater.java:640)
   at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:55)
   at android.view.LayoutInflater.onCreateView(LayoutInflater.java:689)
   at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:748)
   at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
   at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
   at com.tapmedia.tapito.WebViewFragment.onCreateView(SourceFile:84)
   at android.support.v4.app.Fragment.performCreateView(SourceFile:1789)
   at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:924)
   at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1116)
   at android.support.v4.app.FragmentManagerImpl.onCreateView(SourceFile:2196)
   at android.support.v4.app.FragmentActivity.onCreateView(SourceFile:300)
   at android.support.v7.app.AppCompatDelegateImplV7.callActivityOnCreateView(SourceFile:838)
   at android.support.v7.app.AppCompatDelegateImplV11.callActivityOnCreateView(SourceFile:34)
   at android.support.v7.app.AppCompatDelegateImplV7.onCreateView(SourceFile:826)
   at android.support.v4.view.LayoutInflaterCompatHC$FactoryWrapperHC.onCreateView(SourceFile:44)
   at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:732)
   at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:366)
   at android.support.v7.app.AppCompatDelegateImplV7.setContentView(SourceFile:249)
   at android.support.v7.app.AppCompatActivity.setContentView(SourceFile:106)
   at com.tapmedia.tapito.LockscreenActivity.onCreate(SourceFile:103)
   at android.app.Activity.performCreate(Activity.java:6289)
   at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2647)
   at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2759)
   at android.app.ActivityThread.access$900(ActivityThread.java:178)
   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1449)
   at android.os.Handler.dispatchMessage(Handler.java:102)
   at android.os.Looper.loop(Looper.java:145)
   at android.app.ActivityThread.main(ActivityThread.java:5944)
   at java.lang.reflect.Method.invoke(Method.java)
   at java.lang.reflect.Method.invoke(Method.java:372)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
Caused by: java.lang.reflect.InvocationTargetException
   at java.lang.reflect.Constructor.newInstance(Constructor.java)
   at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
   at android.view.LayoutInflater.createView(LayoutInflater.java:614)
   at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:55)
   at android.view.LayoutInflater.onCreateView(LayoutInflater.java:689)
   at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:748)
   at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
   at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
   at com.tapmedia.tapito.WebViewFragment.onCreateView(SourceFile:84)
   at android.support.v4.app.Fragment.performCreateView(SourceFile:1789)
   at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:924)
   at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1116)
   at android.support.v4.app.FragmentManagerImpl.onCreateView(SourceFile:2196)
   at android.support.v4.app.FragmentActivity.onCreateView(SourceFile:300)
   at android.support.v7.app.AppCompatDelegateImplV7.callActivityOnCreateView(SourceFile:838)
   at android.support.v7.app.AppCompatDelegateImplV11.callActivityOnCreateView(SourceFile:34)
   at android.support.v7.app.AppCompatDelegateImplV7.onCreateView(SourceFile:826)
   at android.support.v4.view.LayoutInflaterCompatHC$FactoryWrapperHC.onCreateView(SourceFile:44)
   at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:732)
   at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:366)
   at android.support.v7.app.AppCompatDelegateImplV7.setContentView(SourceFile:249)
   at android.support.v7.app.AppCompatActivity.setContentView(SourceFile:106)
   at com.tapmedia.tapito.LockscreenActivity.onCreate(SourceFile:103)
   at android.app.Activity.performCreate(Activity.java:6289)
   at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2647)
   at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2759)
   at android.app.ActivityThread.access$900(ActivityThread.java:178)
   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1449)
   at android.os.Handler.dispatchMessage(Handler.java:102)
   at android.os.Looper.loop(Looper.java:145)
   at android.app.ActivityThread.main(ActivityThread.java:5944)
   at java.lang.reflect.Method.invoke(Method.java)
   at java.lang.reflect.Method.invoke(Method.java:372)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
Caused by: android.util.AndroidRuntimeException: android.content.pm.PackageManager$NameNotFoundException: com.google.android.webview
   at android.webkit.WebViewFactory.getFactoryClass(WebViewFactory.java:161)
   at android.webkit.WebViewFactory.getProvider(WebViewFactory.java:101)
   at android.webkit.WebView.getFactory(WebView.java:2193)
   at android.webkit.WebView.ensureProviderCreated(WebView.java:2188)
   at android.webkit.WebView.setOverScrollMode(WebView.java:2247)
   at android.view.View.(View.java:3795)
   at android.view.View.(View.java:3909)
   at android.view.ViewGroup.(ViewGroup.java:507)
   at android.widget.AbsoluteLayout.(AbsoluteLayout.java:55)
   at android.webkit.WebView.(WebView.java:547)
   at android.webkit.WebView.(WebView.java:492)
   at android.webkit.WebView.(WebView.java:475)
   at android.webkit.WebView.(WebView.java:462)
   at java.lang.reflect.Constructor.newInstance(Constructor.java)
   at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
   at android.view.LayoutInflater.createView(LayoutInflater.java:614)
   at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:55)
   at android.view.LayoutInflater.onCreateView(LayoutInflater.java:689)
   at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:748)
   at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
   at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
   at com.tapmedia.tapito.WebViewFragment.onCreateView(SourceFile:84)
   at android.support.v4.app.Fragment.performCreateView(SourceFile:1789)
   at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:924)
   at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1116)
   at android.support.v4.app.FragmentManagerImpl.onCreateView(SourceFile:2196)
   at android.support.v4.app.FragmentActivity.onCreateView(SourceFile:300)
   at android.support.v7.app.AppCompatDelegateImplV7.callActivityOnCreateView(SourceFile:838)
   at android.support.v7.app.AppCompatDelegateImplV11.callActivityOnCreateView(SourceFile:34)
   at android.support.v7.app.AppCompatDelegateImplV7.onCreateView(SourceFile:826)
   at android.support.v4.view.LayoutInflaterCompatHC$FactoryWrapperHC.onCreateView(SourceFile:44)
   at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:732)
   at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:366)
   at android.support.v7.app.AppCompatDelegateImplV7.setContentView(SourceFile:249)
   at android.support.v7.app.AppCompatActivity.setContentView(SourceFile:106)
   at com.tapmedia.tapito.LockscreenActivity.onCreate(SourceFile:103)
   at android.app.Activity.performCreate(Activity.java:6289)
   at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2647)
   at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2759)
   at android.app.ActivityThread.access$900(ActivityThread.java:178)
   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1449)
   at android.os.Handler.dispatchMessage(Handler.java:102)
   at android.os.Looper.loop(Looper.java:145)
   at android.app.ActivityThread.main(ActivityThread.java:5944)
   at java.lang.reflect.Method.invoke(Method.java)
   at java.lang.reflect.Method.invoke(Method.java:372)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
Caused by: android.content.pm.PackageManager$NameNotFoundException: com.google.android.webview
   at android.app.ApplicationPackageManager.getPackageInfo(ApplicationPackageManager.java:137)
   at android.webkit.WebViewFactory.getFactoryClass(WebViewFactory.java:133)
   at android.webkit.WebViewFactory.getProvider(WebViewFactory.java:101)
   at android.webkit.WebView.getFactory(WebView.java:2193)
   at android.webkit.WebView.ensureProviderCreated(WebView.java:2188)
   at android.webkit.WebView.setOverScrollMode(WebView.java:2247)
   at android.view.View.(View.java:3795)
   at android.view.View.(View.java:3909)
   at android.view.ViewGroup.(ViewGroup.java:507)
   at android.widget.AbsoluteLayout.(AbsoluteLayout.java:55)
   at android.webkit.WebView.(WebView.java:547)
   at android.webkit.WebView.(WebView.java:492)
   at android.webkit.WebView.(WebView.java:475)
   at android.webkit.WebView.(WebView.java:462)
   at java.lang.reflect.Constructor.newInstance(Constructor.java)
   at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
   at android.view.LayoutInflater.createView(LayoutInflater.java:614)
   at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:55)
   at android.view.LayoutInflater.onCreateView(LayoutInflater.java:689)
   at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:748)
   at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
   at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
   at com.tapmedia.tapito.WebViewFragment.onCreateView(SourceFile:84)
   at android.support.v4.app.Fragment.performCreateView(SourceFile:1789)
   at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:924)
   at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1116)
   at android.support.v4.app.FragmentManagerImpl.onCreateView(SourceFile:2196)
   at android.support.v4.app.FragmentActivity.onCreateView(SourceFile:300)
   at android.support.v7.app.AppCompatDelegateImplV7.callActivityOnCreateView(SourceFile:838)
   at android.support.v7.app.AppCompatDelegateImplV11.callActivityOnCreateView(SourceFile:34)
   at android.support.v7.app.AppCompatDelegateImplV7.onCreateView(SourceFile:826)
   at android.support.v4.view.LayoutInflaterCompatHC$FactoryWrapperHC.onCreateView(SourceFile:44)
   at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:732)
   at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:366)
   at android.support.v7.app.AppCompatDelegateImplV7.setContentView(SourceFile:249)
   at android.support.v7.app.AppCompatActivity.setContentView(SourceFile:106)
   at com.tapmedia.tapito.LockscreenActivity.onCreate(SourceFile:103)
   at android.app.Activity.performCreate(Activity.java:6289)
   at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2647)
   at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2759)
   at android.app.ActivityThread.access$900(ActivityThread.java:178)
   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1449)
   at android.os.Handler.dispatchMessage(Handler.java:102)
   at android.os.Looper.loop(Looper.java:145)
   at android.app.ActivityThread.main(ActivityThread.java:5944)
   at java.lang.reflect.Method.invoke(Method.java)
   at java.lang.reflect.Method.invoke(Method.java:372)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)

我不明白出了什么问题。因为这个错误来自在线报告工具（Crashlytics/Fabric），我无法确定，特定用户每次尝试使用片段时是否会发生，或者用户通常是否可以展开片段并且错误只是偶尔发生。 WebView小部件是系统的一部分，对吧？我的意思是说-我不可能在我的生产APK中缺少任何东西-像支持库之类的。还是可以呢？

3
"WebView小部件是系统的一部分，对吗？"-- 是也不是。现在在Android 4.4+的Google Play设备上通过Play商店进行更新（请查看安卓系统WebView应用程序）。这个具体的堆栈跟踪指示Android期望找到此应用程序(com.google.android.webview)，但出于某种原因找不到它。 - CommonsWare
@CommonsWare OOM会导致这个错误吗？因为我有时候也遇到相同的错误，针对TextView或ImageView小部件。 - Shayan Pourvatan
1
@shayanpourvatan：“OOM会导致这个错误吗？” - 据我所知，不是那个特定的堆栈跟踪。“因为我有时也会遇到相同的错误，针对TextView或ImageView小部件” - 我很难相信当您使用TextView或ImageView时，PackageManager会因缺少com.google.android.webview包而引发异常。您确实可以在这些小部件上获得InflateException，但是由于不同的根本原因（例如OOM），因此会出现不同的情况。有许多导致InflateException的原因。 - CommonsWare
感谢@CommonsWare清晰的解释。非常感谢。 - Shayan Pourvatan
感谢提供的见解，@CommonsWare。正如Mikhail在他的回答中所述，当我的应用程序尝试使用它时，Android System WebView应用程序的更新可能会导致此异常。 - d.aemon
5个回答
92
如果您看到来自运行Android Lollipop的设备的这些报告，请忽略它们。每当某个应用程序启动使用WebView的活动时，而WebView软件包正在被Play Store更新（目前仅适用于Lollipop），就会出现此问题。在更新期间，软件包被包管理器视为未安装。也就是说，您的应用程序没有问题。更新后软件包被视为不存在的时间窗口通常很小，因此，在此类崩溃之后重新启动应用程序时，它将正常启动。
1
目前我只在Lollipop设备上看到了这个问题。到目前为止，这个答案看起来是正确的。谢谢，@Mikhail - d.aemon
1
请确保在UI线程中填充WebView，我曾因此遇到过问题。 - sonique
4
没关系，根本原因异常是“NameNotFoundException”，这意味着WebView确实不存在于用户的设备上，这是设备故障，或者可能是用户作为管理员删除了WebView。 - Vicky Chijwani
12
仍然在Android 8上发生。 - AlexAndro
2
同样适用于Android 9（Note 8）。崩溃发生在Note 8的最新八月更新之后。更不用说我一直在遇到Play商店的问题。我无法下载/更新任何应用程序。它只是显示等待下载。除了重置手机，我尝试了所有方法。没有什么能解决这个问题。 - TheRealChx101
显示剩余5条评论
20

为了解决在Android Lollipop上出现的问题，您可以使用自定义WebView，在Android Lollipop（API 21和22）上创建一个新的配置。将您XML布局中的WebView替换为此自定义WebView即可。

import android.annotation.TargetApi;
import android.content.Context;
import android.content.res.Configuration;
import android.os.Build;
import android.util.AttributeSet;
import android.webkit.WebView;

public class LollipopFixedWebView extends WebView {

    public LollipopFixedWebView(Context context) {
        super(getFixedContext(context));
    }

    public LollipopFixedWebView(Context context, AttributeSet attrs) {
        super(getFixedContext(context), attrs);
    }

    public LollipopFixedWebView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(getFixedContext(context), attrs, defStyleAttr);
    }

    // To fix Android Lollipop WebView problem create a new configuration on that Android version only
    private static Context getFixedContext(Context context) {
        if (Build.VERSION.SDK_INT == 21 || Build.VERSION.SDK_INT == 22) // Android Lollipop 5.0 & 5.1
            return context.createConfigurationContext(new Configuration());
        return context;
    }
}
1
这很有帮助。我的 Android 5 模拟器以前会崩溃，但是有了这个解决方案，我就可以无崩溃地使用它了。 - xiaomi
@Hector 但是在点击下拉菜单或长按突出显示Webview中的文本时会崩溃。https://stackoverflow.com/questions/58710401/android-webview-drop-down-crashing-only-on-android-lollipop5-0-5-1 - Girish
9
如果您不依赖于新的Material DayNight主题切换（或其他UiMode事件），您可以将android:configChanges="uiMode"添加到webview的活动清单中，以防止AppCompatDelegate更新资源配置，并因此弄乱webview膨胀。
3

我在2020年也遇到了这个问题，现在有了解决方案：

只需添加以下新的依赖项：

implementation 'androidx.appcompat:appcompat:1.2.0-beta01'
implementation 'androidx.appcompat:appcompat-resources:1.2.0-beta01'

官方文档说明如下：

修复了一个问题，即当长按WebView时，androidx.appcompat:appcompat:1.1.0会导致WebView崩溃（b/141351441）。

0
在将Webview填充到UI中的Activity的onCreate方法中，您可以使用try-catch来避免Crashlytics产生的错误。
  /**
     * This element touches the UI elements
     * of the application and set them up.
     */
   try {
        setContentView(R.layout.activity_main);
        // ... further setup
    } catch (Exception ex) {
        transferToNoPackageFoundActivity(ex.getMessage());
    }


    private void transferToNoPackageFoundActivity(String errorMessage) {
        Intent intent = new Intent(this, NoPackageFoundActivity.class);
        intent.putExtra(Intent.EXTRA_INTENT, errorMessage);
        startActivity(intent);
        finish();
    }

在NoPackageFoundActivity中，您可以将用户带到Playstore下载Webview包。
    /**
 * This field is used for presenting the user
 * with an error image for no connectivity.
 */
private lateinit var mErrorImage: ImageView

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_no_network)
    // get the intent for the error message, if any.
    val intent: Intent = intent
    if (intent.hasExtra(Intent.EXTRA_INTENT)) {
        println(intent.getStringExtra(Intent.EXTRA_INTENT))
    }

    mErrorImage = findViewById(R.id.error_image)
    mErrorImage.contentDescription = resources.getString(R.string.no_network_image_desc)
    Glide.with(this)
            .load(R.drawable.ic_no_web_view_illustration)
            .into(mErrorImage)

    val enableButton = findViewById<Button>(R.id.error_handler_btn)
    enableButton.setOnClickListener { openGooglePlayStore() }
    enableButton.text = resources.getString(R.string.no_package_btn_text)

    val reloadText = findViewById<TextView>(R.id.no_network_reload)
    reloadText.setOnClickListener { reloadApplication() }

    val errorHeadingText = findViewById<TextView>(R.id.error_heading)
    val errorSubheadingText = findViewById<TextView>(R.id.error_subheading)
    errorHeadingText.text = resources.getString(R.string.no_package_heading_text)
    errorSubheadingText.text = resources.getString(R.string.no_package_subheading_text)
}

/**
 * This is a onClickListener Handler that
 * reloads the application when the user
 * clicks on it.
 * It starts the activity again from
 */
private fun reloadApplication() {
    val intent = Intent(this, SplashScreen::class.java)
    startActivity(intent)
    finish()
}

private fun openGooglePlayStore() {
    // you can also use BuildConfig.APPLICATION_ID
    val appId = "com.google.android.webview"
    val rateIntent = Intent(Intent.ACTION_VIEW,
            Uri.parse("market://details?id=$appId"))
    var marketFound = false
    // find all applications able to handle our rateIntent
    val otherApps = packageManager
            .queryIntentActivities(rateIntent, 0)
    for (otherApp in otherApps) { // look for Google Play application
        if (otherApp.activityInfo.applicationInfo.packageName
                == "com.android.vending") {
            val otherAppActivity = otherApp.activityInfo
            val componentName = ComponentName(
                    otherAppActivity.applicationInfo.packageName,
                    otherAppActivity.name
            )
            // make sure it does NOT open in the stack of your activity
            rateIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
            // task reparenting if needed
            rateIntent.addFlags(Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED)
            // if the Google Play was already open in a search result
            //  this make sure it still go to the app page you requested
            rateIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
            // this make sure only the Google Play app is allowed to
            // intercept the intent
            rateIntent.component = componentName
            startActivity(rateIntent)
            marketFound = true
            break
        }
    }
    // if GP not present on device, open web browser
    if (!marketFound) {
        val webIntent = Intent(Intent.ACTION_VIEW,
                Uri.parse("https://play.google.com/store/apps/details?id=$appId"))
        startActivity(webIntent)
    }
}
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