java - Google meet、zoom 或 vetera 无法与 android webview 一起使用

Question

我如何从 web View 中使用 google meet、zoom 或任何这些视频通话应用程序？
我正在尝试从我的 android 应用程序中的 webview 创建视频通话，但它显示“浏览器不兼容，请下载 chrome、firefox 或 edge”
我可以在手机的桌面模式下使用 google meet，但是当我尝试在 webview 中使用它时，它不允许我使用。
我认为问题在于 webview 没有在应用程序内使用 chrome 作为浏览器，而且我不能使用自定义选项卡，因为我需要应用程序内的视频而不是外部页面中的视频。
这是我现在的代码，它工作正常，在桌面模式下打开网址但是当我尝试启动视频时出现错误:

class CameraFragment : Fragment() {
    private lateinit var binding: FragmentCameraBinding

    override fun onCreateView(
        inflater: LayoutInflater, container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_camera, container, false)
    }

    @RequiresApi(Build.VERSION_CODES.O)
    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
        binding = FragmentCameraBinding.bind(view)
        if (ContextCompat.checkSelfPermission(
                requireContext(),
                Manifest.permission.RECORD_AUDIO
            ) != PackageManager.PERMISSION_GRANTED && ContextCompat.checkSelfPermission(
                requireContext(),
                Manifest.permission.CAMERA
            ) != PackageManager.PERMISSION_GRANTED){
            val permissions = arrayOf(
                android.Manifest.permission.RECORD_AUDIO,
                android.Manifest.permission.CAMERA
            )
            ActivityCompat.requestPermissions(requireActivity(), permissions, 0)
        }
        webViewSetup()

    }

    @RequiresApi(Build.VERSION_CODES.O)
    private fun  webViewSetup() {
       
        binding.webView.webChromeClient = object : WebChromeClientCustomPoster() {
            override fun onPermissionRequest(request: PermissionRequest) {
                request.grant(request.resources)
            }
        }

        val newUA = "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36"
        binding.webView.apply {
            settings.javaScriptEnabled = true
            settings.domStorageEnabled = true
            settings.mediaPlaybackRequiresUserGesture = false

            settings.userAgentString = newUA
            loadUrl("https://www.vectera.com/login/")
        }
    }

    override fun onResume() {
        super.onResume()
        requireActivity().requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE
    }

    override fun onStop() {
        super.onStop()
        requireActivity().requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT
    }


   open inner class WebChromeClientCustomPoster : WebChromeClient() {
       override fun getDefaultVideoPoster(): Bitmap? {
            return Bitmap.createBitmap(10, 10, Bitmap.Config.ARGB_8888)
        }
    }


    inner class MyWebViewClient : WebViewClient() {
        override fun shouldOverrideUrlLoading(view: WebView, url: String): Boolean {
            view.loadUrl(url)
            return false
        }

    }

}

消息:

Answer 1

关于WebRtc，需要权限:

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.RECORD_AUDIO" />
    <uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />

        if (ContextCompat.checkSelfPermission(
                requireContext(),
                Manifest.permission.RECORD_AUDIO
            ) != PackageManager.PERMISSION_GRANTED && ContextCompat.checkSelfPermission(
                requireContext(),
                Manifest.permission.CAMERA
            ) != PackageManager.PERMISSION_GRANTED && ContextCompat.checkSelfPermission(
                requireContext(),
                Manifest.permission.MODIFY_AUDIO_SETTINGS
            ) != PackageManager.PERMISSION_GRANTED && ContextCompat.checkSelfPermission(
                requireContext(),
                Manifest.permission.INTERNET
            ) != PackageManager.PERMISSION_GRANTED
        ) {
            val permissions = arrayOf(
                android.Manifest.permission.RECORD_AUDIO,
                android.Manifest.permission.CAMERA,
                android.Manifest.permission.MODIFY_AUDIO_SETTINGS,
                android.Manifest.permission.INTERNET,
            )
            ActivityCompat.requestPermissions(requireActivity(), permissions, 0)
        }

如果尝试运行，如果运行不成功，可以打开浏览器Debug模式打印出具体错误。
此外，Google 官方也有 WebRtc 的实现代码。您可以引用: here

 open inner class WebChromeClientCustomPoster : WebChromeClient() {
       override fun getDefaultVideoPoster(): Bitmap? {
            return Bitmap.createBitmap(10, 10, Bitmap.Config.ARGB_8888)
        }
       override fun onPermissionRequest(request: PermissionRequest) {
           activity?.runOnUiThread { request.grant(request.resources) }
        }
    }

设置 webChromeClient :

binding.webView.webChromeClient = WebChromeClientCustomPoster()