Android WebView，如何添加 GPS 和相机权限

如何解决Android WebView，如何添加 GPS 和相机权限

我有一个可用的 android webview 代码。但它缺乏 GPS 和视频捕获权限。我通过在 stackoverflow 和其他地方查看许多答案尝试了一些答案，但无论我尝试什么都不起作用。

我觉得我错过了一些东西，但无法找出究竟是什么。

在 AndroidManifest 中我有

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.webkit.PermissionRequest" />
<uses-permission android:name="com.android.vending.BILLING" />
<uses-permission android:name="com.android.vending.CHECK_LICENSE" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />

<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera2" />
<uses-feature android:name="android.hardware.location.gps" />
<uses-feature android:name="android.hardware.location.network" />

在 MainActivity 我有

package com.apptheway.wexview;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.Window;
import android.webkit.GeolocationPermissions;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;

import androidx.annotation.RequiresApi;
import java.util.Random;

@SuppressLint("SetJavaScriptEnabled")

public class MainActivity extends Activity {

    private WebView mWebView;

    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().requestFeature(Window.FEATURE_NO_TITLE);

        mWebView = new WebView(this);
        WebSettings webSettings = mWebView.getSettings();
        webSettings.setLoadWithOverviewMode(true);
        webSettings.setUseWideViewPort(true);
        webSettings.setDomStorageEnabled(true);
        webSettings.setGeolocationEnabled(true);
        webSettings.setBuiltInZoomControls(true);
        webSettings.setDisplayZoomControls(false);
        webSettings.setSupportZoom(true);
        webSettings.setJavaScriptCanOpenWindowsAutomatically(true);
        webSettings.setJavaScriptEnabled(true);
        webSettings.setAppCacheEnabled(true);
        webSettings.setCacheMode(WebSettings.LOAD_DEFAULT);
        webSettings.setAllowUniversalAccessFromFileURLs(true);
        webSettings.setAllowFileAccessFromFileURLs(true);
        webSettings.setAllowFileAccess(true);
        webSettings.setAllowContentAccess(true);
        webSettings.setDatabaseEnabled(true);
        webSettings.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);

        mWebView.setWebViewClient(new WebViewClient() {

            @Override
            public boolean shouldOverrideUrlLoading(WebView view,String url) {

                int opensInWexView = 1;

                if (    url.contains(".pdf") || url.contains(".mov") || url.contains(".mp") ||
                        url.contains(".hv") || url.contains(".aif") || url.contains(".wav") ||
                        url.contains(".xls") || url.contains(".doc") || url.contains(".txt")
                ) {
                    opensInWexView = 0;
                }

                if (    url.startsWith("tel:") || url.startsWith("sms:") ||
                        url.startsWith("smsto:") || url.startsWith("mailto:") ||
                        url.startsWith("mms:") || url.startsWith("mmsto:")
                ) {
                    opensInWexView = 0;
                }

                if ( opensInWexView == 0 ) {
                    Intent intent = new Intent(Intent.ACTION_VIEW,Uri.parse(url));
                    startActivity(intent);
                    return true;
                }
                else {
                    view.loadUrl(url);
                    return true;
                }

            }
        });

        mWebView.setWebChromeClient(new WebChromeClient() {

        });

        mWebView.loadUrl("https://www.stubfee.com/account/" + (new Random().nextInt((1000000 - 1) + 1) + 1) + "/");

        this.setContentView(mWebView);
    }

    @Override
    public boolean onKeyDown(final int keyCode,final KeyEvent event) {
        if ((keyCode == KeyEvent.KEYCODE_BACK) && mWebView.canGoBack()) {
            mWebView.goBack();
            return true;
        }
        return super.onKeyDown(keyCode,event);
    }
}

我找到了关于修改的答案

mWebView.setWebChromeClient(new WebChromeClient() { ...code here... });

我试过 GPS

public void onGeolocationPermissionsShowPrompt(String origin,GeolocationPermissions.Callback callback) {
                callback.invoke(origin,true,false);
            }

但是无论我在那里放什么代码，我都会出错，或者根本不起作用:(

我错过了什么？