blocks|key|750044|text|您是否在清单中声明了该权限？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|750045|<uses-permission+android:name="android.permission.ACCESS_FINE_LOCATION"+/>|code-block|syntax|javascript|750046|您可能还需要声明其他位置权限，如下所示：|750047|<uses-permission+android:name="android.permission.ACCESS_GPS"+/>
<uses-permission+android:name="android.permission.ACCESS_ASSISTED_GPS"+/>
<uses-permission+android:name="android.permission.ACCESS_LOCATION"+/>
<uses-permission+android:name="android.permission.ACCESS_COARSE_LOCATION"+/>
<uses-permission+android:name="android.permission.ACCESS_FINE_LOCATION"+/>|750048|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Are you declaring that permission in your manifest?

<pre><code>&lt;uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /&gt;
</code></pre>

You may also need to declare other location permissions, like these:

<pre><code>&lt;uses-permission android:name="android.permission.ACCESS_GPS" /&gt;
&lt;uses-permission android:name="android.permission.ACCESS_ASSISTED_GPS" /&gt;
&lt;uses-permission android:name="android.permission.ACCESS_LOCATION" /&gt;
&lt;uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /&gt;
&lt;uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /&gt;
</code></pre>

blocks|key|965556|text|接受或拒绝用户位置的对话框是由程序员设计的:D.正如Chris+Cashwell所说，您只需使用如下回调：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|965557|webview.setWebChromeClient(new+WebChromeClient(){
++public+void+onGeolocationPermissionsShowPrompt(String+origin,+GeolocationPermissions.Callback+callback)+{
++++//+callback.invoke(String+origin,+boolean+allow,+boolean+remember);
++++callback.invoke(origin,+true,+false);
++}
});|code-block|syntax|javascript|965558|在某些情况下，HTML5需要使用存储，因此您必须启用一些属性，以便webview具有完全访问权限才能正常运行。|965559|++++//+HTML5+API+flags
++++webView.getSettings().setAppCacheEnabled(true);
++++webView.getSettings().setDatabaseEnabled(true);
++++webView.getSettings().setDomStorageEnabled(true);|965560|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Dialog to accept or decline user location is design by programmer :D. As Chris Cashwell said, you just use a callback like this:
<pre><code>webview.setWebChromeClient(new WebChromeClient(){
 public void onGeolocationPermissionsShowPrompt(String origin, GeolocationPermissions.Callback callback) {
 // callback.invoke(String origin, boolean allow, boolean remember);
 callback.invoke(origin, true, false);
 }
});
</code></pre>
In some cases, HTML5 requires the use of storage, therefore you must enable some properties so that webview has full access to run normal.
<pre><code> // HTML5 API flags
 webView.getSettings().setAppCacheEnabled(true);
 webView.getSettings().setDatabaseEnabled(true);
 webView.getSettings().setDomStorageEnabled(true);
</code></pre>

blocks|key|750094|text|以下是显示警报对话框以提升用户使用其位置的权限的示例：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|750095|++++final+Context+context+=+this;

+++++@Override
+++++public+void+onGeolocationPermissionsShowPrompt(final+String+origin,+final+GeolocationPermissions.Callback+callback)+{
++++++++Log.i(TAG,+"onGeolocationPermissionsShowPrompt()");

++++++++final+boolean+remember+=+false;
++++++++AlertDialog.Builder+builder+=+new+AlertDialog.Builder(context);
++++++++builder.setTitle("Locations");
++++++++builder.setMessage("Would+like+to+use+your+Current+Location+")
++++++++.setCancelable(true).setPositiveButton("Allow",+new+DialogInterface.OnClickListener()+{
+++++++++++public+void+onClick(DialogInterface+dialog,+int+id)+{
++++++++++++++//+origin,+allow,+remember
++++++++++++++callback.invoke(origin,+true,+remember);
+++++++++++}
++++++++}).setNegativeButton("Don't+Allow",+new+DialogInterface.OnClickListener()+{
+++++++++++public+void+onClick(DialogInterface+dialog,+int+id)+{
++++++++++++++//+origin,+allow,+remember
++++++++++++++callback.invoke(origin,+false,+remember);
+++++++++++}
++++++++});
++++++++AlertDialog+alert+=+builder.create();
++++++++alert.show();
+++++}|code-block|syntax|javascript|750096|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This is an example of showing alert dialog to promote for user permission to use his/her location:
<pre><code> final Context context = this;

 @Override
 public void onGeolocationPermissionsShowPrompt(final String origin, final GeolocationPermissions.Callback callback) {
 Log.i(TAG, &quot;onGeolocationPermissionsShowPrompt()&quot;);

 final boolean remember = false;
 AlertDialog.Builder builder = new AlertDialog.Builder(context);
 builder.setTitle(&quot;Locations&quot;);
 builder.setMessage(&quot;Would like to use your Current Location &quot;)
 .setCancelable(true).setPositiveButton(&quot;Allow&quot;, new DialogInterface.OnClickListener() {
 public void onClick(DialogInterface dialog, int id) {
 // origin, allow, remember
 callback.invoke(origin, true, remember);
 }
 }).setNegativeButton(&quot;Don't Allow&quot;, new DialogInterface.OnClickListener() {
 public void onClick(DialogInterface dialog, int id) {
 // origin, allow, remember
 callback.invoke(origin, false, remember);
 }
 });
 AlertDialog alert = builder.create();
 alert.show();
 }
</code></pre>

blocks|key|965612|text|我最近遇到了这种情况，并完成了以下步骤来实现这一点：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|965613|步骤1:在AndroidManifest.xml文件中添加权限|offset|length|style|CODE|965614|<uses-permission+android:name="android.permission.INTERNET"/>
<uses-permission+android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission+android:name="android.permission.ACCESS_FINE_LOCATION"/>+|code-block|syntax|javascript|965615|步骤2:创建一个包含WebView和ProgressBar的活动(在我的例子中)|965616|xmlns:android="http://schemas.android.com/apk/res/android"
++++xmlns:app="http://schemas.android.com/apk/res-auto"
++++xmlns:tools="http://schemas.android.com/tools"
++++android:layout_width="match_parent"
++++android:layout_height="match_parent"
++++tools:context=".MainActivity">
++++<ProgressBar
++++++++android:id="@%2Bid/progressBar"
++++++++style="?android:attr/progressBarStyleHorizontal"
++++++++android:layout_width="0dp"
++++++++android:layout_height="wrap_content"
++++++++android:layout_margin="0dp"
++++++++android:minHeight="4dp"
++++++++android:padding="0dp"
++++++++app:layout_constraintEnd_toEndOf="parent"
++++++++app:layout_constraintStart_toStartOf="parent"
++++++++app:layout_constraintTop_toTopOf="parent"+/>
++++<WebView
++++++++android:id="@%2Bid/webView"
++++++++android:layout_width="0dp"
++++++++android:layout_height="0dp"
++++++++app:layout_constraintBottom_toBottomOf="parent"
++++++++app:layout_constraintEnd_toEndOf="parent"
++++++++app:layout_constraintStart_toStartOf="parent"
++++++++app:layout_constraintTop_toBottomOf="@%2Bid/progressBar"+/>
</androidx.constraintlayout.widget.ConstraintLayout>|965617|步骤3:在您的activity类中，添加以下代码并根据需要进行更改|965618|class+WebActivity+:+AppCompatActivity()+{
++++var+pageUrl:+String+=+"https://couponia.co/"
++++var+mGeoLocationRequestOrigin:+String?+=+null
++++var+mGeoLocationCallback:+GeolocationPermissions.Callback?+=+null
++++val+MAX_PROGRESS+=+100
++++override+fun+onCreate(savedInstanceState:+Bundle?)+{
++++++++super.onCreate(savedInstanceState)
++++++++setContentView(R.layout.activity_web)
++++++++initWebView()
++++++++setWebClient()
++++++++loadUrl(pageUrl)
++++}


++++@SuppressLint("SetJavaScriptEnabled")
++++private+fun+initWebView()+{
++++++++webView.settings.javaScriptEnabled+=+true
++++++++webView.settings.loadWithOverviewMode+=+true
++++++++webView.settings.useWideViewPort+=+true
++++++++webView.settings.domStorageEnabled+=+true
++++++++webView.settings.databaseEnabled+=+true
++++++++webView.settings.setAppCacheEnabled(true)
++++++++webView.webViewClient+=+object+:+WebViewClient()+{
++++++++++++override
++++++++++++fun+onReceivedSslError(view:+WebView?,+handler:+SslErrorHandler?,+error:+SslError?)+{
++++++++++++++++handler?.proceed()
++++++++++++}
++++++++}

++++}

++++private+fun+setWebClient()+{

++++++++webView.webChromeClient+=+object+:+WebChromeClient()+{
++++++++++++override+fun+onGeolocationPermissionsShowPrompt(
++++++++++++++++origin:+String?,
++++++++++++++++callback:+GeolocationPermissions.Callback?
++++++++++++)+{

++++++++++++++++if+(ContextCompat.checkSelfPermission(
++++++++++++++++++++++++this@WebActivity,
++++++++++++++++++++++++Manifest.permission.ACCESS_FINE_LOCATION
++++++++++++++++++++)
++++++++++++++++++++!=+PackageManager.PERMISSION_GRANTED
++++++++++++++++)+{

++++++++++++++++++++if+(ActivityCompat.shouldShowRequestPermissionRationale(
++++++++++++++++++++++++++++this@WebActivity,
++++++++++++++++++++++++++++Manifest.permission.ACCESS_FINE_LOCATION
++++++++++++++++++++++++)
++++++++++++++++++++)+{
++++++++++++++++++++++++AlertDialog.Builder(this@WebActivity)
++++++++++++++++++++++++++++.setMessage("Please+turn+ON+the+GPS+to+make+app+work+smoothly")
++++++++++++++++++++++++++++.setNeutralButton(
++++++++++++++++++++++++++++++++android.R.string.ok,
++++++++++++++++++++++++++++++++DialogInterface.OnClickListener+{+dialogInterface,+i+->
++++++++++++++++++++++++++++++++++++mGeoLocationCallback+=+callback
++++++++++++++++++++++++++++++++++++mGeoLocationRequestOrigin+=+origin
++++++++++++++++++++++++++++++++++++ActivityCompat.requestPermissions(
++++++++++++++++++++++++++++++++++++++++this@WebActivity,
++++++++++++++++++++++++++++++++++++++++arrayOf(Manifest.permission.ACCESS_FINE_LOCATION),+1001
++++++++++++++++++++++++++++++++++++)

++++++++++++++++++++++++++++++++})
++++++++++++++++++++++++++++.show()

++++++++++++++++++++}+else+{
++++++++++++++++++++++++//no+explanation+need+we+can+request+the+locatio
++++++++++++++++++++++++mGeoLocationCallback+=+callback
++++++++++++++++++++++++mGeoLocationRequestOrigin+=+origin
++++++++++++++++++++++++ActivityCompat.requestPermissions(
++++++++++++++++++++++++++++this@WebActivity,
++++++++++++++++++++++++++++arrayOf(Manifest.permission.ACCESS_FINE_LOCATION),+1001
++++++++++++++++++++++++)
++++++++++++++++++++}
++++++++++++++++}+else+{
++++++++++++++++++++//tell+the+webview+that+permission+has+granted
++++++++++++++++++++callback!!.invoke(origin,+true,+true)
++++++++++++++++}

++++++++++++}

++++++++++++override+fun+onProgressChanged(view:+WebView?,+newProgress:+Int)+{
++++++++++++++++super.onProgressChanged(view,+newProgress)
++++++++++++++++progressBar.progress+=+newProgress
++++++++++++++++if+(newProgress+<+MAX_PROGRESS+&&+progressBar.visibility+==+ProgressBar.GONE)+{
++++++++++++++++++++progressBar.visibility+=+ProgressBar.VISIBLE
++++++++++++++++}
++++++++++++++++if+(newProgress+==+MAX_PROGRESS)+{
++++++++++++++++++++progressBar.visibility+=+ProgressBar.GONE
++++++++++++++++}
++++++++++++}


++++++++}
++++}

++++override+fun+onKeyDown(keyCode:+Int,+event:+KeyEvent?):+Boolean+{
++++++++//+Check+if+the+key+event+was+the+Back+button+and+if+there's+history
++++++++if+(keyCode+==+KeyEvent.KEYCODE_BACK+&&+webView.canGoBack())+{
++++++++++++webView.goBack()
++++++++++++return+true
++++++++}
++++++++//+If+it+wasn't+the+Back+key+or+there's+no+web+page+history,+exit+the+activity)
++++++++return+super.onKeyDown(keyCode,+event)
++++}

++++private+fun+loadUrl(pageUrl:+String)+{
++++++++webView.loadUrl(pageUrl)
++++}


++++override+fun+onRequestPermissionsResult(
++++++++requestCode:+Int,
++++++++permissions:+Array<out+String>,
++++++++grantResults:+IntArray
++++)+{
++++++++super.onRequestPermissionsResult(requestCode,+permissions,+grantResults)

++++++++when+(requestCode)+{
++++++++++++1001+->+{
++++++++++++++++//if+permission+is+cancel+result+array+would+be+empty
++++++++++++++++if+(grantResults.size+>+0+&&+grantResults[0]+==+PackageManager.PERMISSION_GRANTED)+{
++++++++++++++++++++//permission+was+granted
++++++++++++++++++++if+(mGeoLocationCallback+!=+null)+{
++++++++++++++++++++++++mGeoLocationCallback!!.invoke(mGeoLocationRequestOrigin,+true,+true)
++++++++++++++++++++}
++++++++++++++++}+else+{
++++++++++++++++++++//permission+denied
++++++++++++++++++++if+(mGeoLocationCallback+!=+null)+{
++++++++++++++++++++++++mGeoLocationCallback!!.invoke(mGeoLocationRequestOrigin,+false,+false)
++++++++++++++++++++}
++++++++++++++++}
++++++++++++}

++++++++}
++++}
}|965619|entityMap^0|0|5|J|0|0|A|7|I|B|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@$D|Y|E|Z|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|10|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|11|8|@$D|12|E|13|F|G]|$D|14|E|15|F|G]]|9|@]|A|$]]|$1|O|3|P|5|J|7|16|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|17|8|@]|9|@]|A|$]]|$1|S|3|T|5|J|7|18|8|@]|9|@]|A|$K|L]]|$1|U|3|-4|5|6|7|19|8|@]|9|@]|A|$]]]|V|$]]

I have recently come across this type of situation and have done below steps to achieve this:

Step 1: 
Add permissions in your <code>AndroidManifest.xml</code> file 

<pre><code>&lt;uses-permission android:name="android.permission.INTERNET"/&gt;
&lt;uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/&gt;
&lt;uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/&gt; 
</code></pre>

Step 2: Create an activity that would contain a <code>WebView</code> and <code>ProgressBar</code> (in my case)




<pre><code>xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:app="http://schemas.android.com/apk/res-auto"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 tools:context=".MainActivity"&gt;
 &lt;ProgressBar
 android:id="@+id/progressBar"
 style="?android:attr/progressBarStyleHorizontal"
 android:layout_width="0dp"
 android:layout_height="wrap_content"
 android:layout_margin="0dp"
 android:minHeight="4dp"
 android:padding="0dp"
 app:layout_constraintEnd_toEndOf="parent"
 app:layout_constraintStart_toStartOf="parent"
 app:layout_constraintTop_toTopOf="parent" /&gt;
 &lt;WebView
 android:id="@+id/webView"
 android:layout_width="0dp"
 android:layout_height="0dp"
 app:layout_constraintBottom_toBottomOf="parent"
 app:layout_constraintEnd_toEndOf="parent"
 app:layout_constraintStart_toStartOf="parent"
 app:layout_constraintTop_toBottomOf="@+id/progressBar" /&gt;
&lt;/androidx.constraintlayout.widget.ConstraintLayout&gt;
</code></pre>

Step 3: In your activity class, add below code and make changes according to your need 

<pre><code>class WebActivity : AppCompatActivity() {
 var pageUrl: String = "https://couponia.co/"
 var mGeoLocationRequestOrigin: String? = null
 var mGeoLocationCallback: GeolocationPermissions.Callback? = null
 val MAX_PROGRESS = 100
 override fun onCreate(savedInstanceState: Bundle?) {
 super.onCreate(savedInstanceState)
 setContentView(R.layout.activity_web)
 initWebView()
 setWebClient()
 loadUrl(pageUrl)
 }


 @SuppressLint("SetJavaScriptEnabled")
 private fun initWebView() {
 webView.settings.javaScriptEnabled = true
 webView.settings.loadWithOverviewMode = true
 webView.settings.useWideViewPort = true
 webView.settings.domStorageEnabled = true
 webView.settings.databaseEnabled = true
 webView.settings.setAppCacheEnabled(true)
 webView.webViewClient = object : WebViewClient() {
 override
 fun onReceivedSslError(view: WebView?, handler: SslErrorHandler?, error: SslError?) {
 handler?.proceed()
 }
 }

 }

 private fun setWebClient() {

 webView.webChromeClient = object : WebChromeClient() {
 override fun onGeolocationPermissionsShowPrompt(
 origin: String?,
 callback: GeolocationPermissions.Callback?
 ) {

 if (ContextCompat.checkSelfPermission(
 this@WebActivity,
 Manifest.permission.ACCESS_FINE_LOCATION
 )
 != PackageManager.PERMISSION_GRANTED
 ) {

 if (ActivityCompat.shouldShowRequestPermissionRationale(
 this@WebActivity,
 Manifest.permission.ACCESS_FINE_LOCATION
 )
 ) {
 AlertDialog.Builder(this@WebActivity)
 .setMessage("Please turn ON the GPS to make app work smoothly")
 .setNeutralButton(
 android.R.string.ok,
 DialogInterface.OnClickListener { dialogInterface, i -&gt;
 mGeoLocationCallback = callback
 mGeoLocationRequestOrigin = origin
 ActivityCompat.requestPermissions(
 this@WebActivity,
 arrayOf(Manifest.permission.ACCESS_FINE_LOCATION), 1001
 )

 })
 .show()

 } else {
 //no explanation need we can request the locatio
 mGeoLocationCallback = callback
 mGeoLocationRequestOrigin = origin
 ActivityCompat.requestPermissions(
 this@WebActivity,
 arrayOf(Manifest.permission.ACCESS_FINE_LOCATION), 1001
 )
 }
 } else {
 //tell the webview that permission has granted
 callback!!.invoke(origin, true, true)
 }

 }

 override fun onProgressChanged(view: WebView?, newProgress: Int) {
 super.onProgressChanged(view, newProgress)
 progressBar.progress = newProgress
 if (newProgress &lt; MAX_PROGRESS &amp;&amp; progressBar.visibility == ProgressBar.GONE) {
 progressBar.visibility = ProgressBar.VISIBLE
 }
 if (newProgress == MAX_PROGRESS) {
 progressBar.visibility = ProgressBar.GONE
 }
 }


 }
 }

 override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
 // Check if the key event was the Back button and if there's history
 if (keyCode == KeyEvent.KEYCODE_BACK &amp;&amp; webView.canGoBack()) {
 webView.goBack()
 return true
 }
 // If it wasn't the Back key or there's no web page history, exit the activity)
 return super.onKeyDown(keyCode, event)
 }

 private fun loadUrl(pageUrl: String) {
 webView.loadUrl(pageUrl)
 }


 override fun onRequestPermissionsResult(
 requestCode: Int,
 permissions: Array&lt;out String&gt;,
 grantResults: IntArray
 ) {
 super.onRequestPermissionsResult(requestCode, permissions, grantResults)

 when (requestCode) {
 1001 -&gt; {
 //if permission is cancel result array would be empty
 if (grantResults.size &gt; 0 &amp;&amp; grantResults[0] == PackageManager.PERMISSION_GRANTED) {
 //permission was granted
 if (mGeoLocationCallback != null) {
 mGeoLocationCallback!!.invoke(mGeoLocationRequestOrigin, true, true)
 }
 } else {
 //permission denied
 if (mGeoLocationCallback != null) {
 mGeoLocationCallback!!.invoke(mGeoLocationRequestOrigin, false, false)
 }
 }
 }

 }
 }
}
</code></pre>

blocks|key|750154|text|作为更新安卓的新答案，在一个帖子中包含所有内容，因为你不再需要使用setWebChromeClient。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|750155|使用android+GPS，您只需使用ActivityCompat.requestPermissions(context,+new+String[]{Manifest.permission.ACCESS_FINE_LOCATION},+123);在运行时请求6%2B权限。|750156|entityMap^0|X|I|0|J|2W|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|P|8|@]|D|@]|E|$]]]|I|$]]

Posting as a new answer for updated Android with everything in one post, because you no longer need to use <code>setWebChromeClient</code>.
With android 6+ you just to ask for the GPS permissions at runtime using <code>ActivityCompat.requestPermissions(context, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, 123);</code>.

I have to retrieve a user's location in a <code>WebView</code>. I do this with the following Javascript:

<pre><code>function getLocation() {
 navigator.geolocation.getCurrentPosition(displayLocation, handleError);
}
</code></pre>

But the permission request popup never opens.

I've set these settings: 

<pre><code>ws.setJavaScriptEnabled(true);
ws.setGeolocationEnabled(true);
ws.setJavaScriptCanOpenWindowsAutomatically(true);
</code></pre>

What is the correct way to access a user's location from within a <code>WebView</code>?

android webview geolocation

HTML5

我必须在WebView中检索用户的位置。我使用以下Javascript完成此操作：function getLocation() {   navigator.geolocation.getCurrentPosition(displayLocation, handleError);}但是权限请求弹出窗口永远不会打开。我已经...

问android webview地理位置
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