initializeApplication+snippet.kt

private fun initializeApplication() {
        // We first initialize our RtcEngine. This object will be used to call our Agora related methods
        try {
            mRtcEngine = RtcEngine.create(baseContext, APP_ID, object : IRtcEngineEventHandler() {})
        } catch (e: Exception) {
            Log.e(LOG_TAG, Log.getStackTraceString(e))
        }

        // By Default, Video is disabled. So we enable that.
        mRtcEngine!!.enableVideo()

        // We set some standard configuration like resolution, FPS and bitrate of the video
        mRtcEngine!!.setVideoEncoderConfiguration(VideoEncoderConfiguration(VideoEncoderConfiguration.VD_640x360,
            VideoEncoderConfiguration.FRAME_RATE.FRAME_RATE_FPS_15,
            VideoEncoderConfiguration.STANDARD_BITRATE,
            VideoEncoderConfiguration.ORIENTATION_MODE.ORIENTATION_MODE_FIXED_PORTRAIT))

        // All videos will be rendered on a SurfaceView.
        // We are first fetching a reference to the FrameLayout we have defined in the XML
        // We are then using Agora to create a SurfaceView object
        // We are then adding this SurfaceView as a child to the FrameLayout
        // And then, we are passing the SurfaceView to Agora so that it can render our local video on it
        val localContainer = findViewById<FrameLayout>(R.id.local_container)
        val localFrame = RtcEngine.CreateRendererView(baseContext)
        localContainer.addView(localFrame, FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT))
        mRtcEngine!!.setupLocalVideo(VideoCanvas(localFrame, VideoCanvas.RENDER_MODE_HIDDEN, 0))

        // We are calling this method to join the Agora Channel
        // We are passing in token. If it is empty, we are passing in null as the token
        mRtcEngine!!.joinChannel(if (TOKEN.isEmpty()) null else TOKEN, CHANNEL, "", 0)

        // This method allows us to fallback to low resolution and low bitrate
        mRtcEngine!!.enableDualStreamMode(true)
}