Android WebView地理定位无法正常工作

Question

My application is displaying a WebView which is requesting for user's geolocation. The onGeolocationPermissionsShowPrompt callback in my WebChromeClient is called, but the JS callback is never called in response. Here's my Java code:

protected void onCreate(Bundle savedInstanceState) {
    // Binding views…

    webview.getSettings().setJavaScriptEnabled(true);
    webview.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
    webview.getSettings().setGeolocationEnabled(true);
    webview.setWebChromeClient(new GeoWebChromeClient());

    webview.loadUrl(BASE_URL);
}

private class GeoWebChromeClient extends WebChromeClient {
    @Override
    @DebugLog
    public void onGeolocationPermissionsShowPrompt(String origin, GeolocationPermissions.Callback callback) {
        callback.invoke(origin, true, true);
    }
}

As expected, onGeolocationPermissionsShowPrompt is called once, the first time the web page requests for user's position, then isn't called anymore. But either on the first or the following position requests, the JS callback is never called.

Edit: I just tested with an other application requesting the position in background. It worked. My application hass the following permissions (I'm pretty sure most of them are useless for this, but…):

<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.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

Answer 1

Yes it's true : onGeolocationPermissionsShowPrompt is called once, the first time the web page requests for user's location, then it's not called anymore. I am also facing the same issue. One workaround could be reload the page after location permission is granted.