Implement standalone event tracing in AppRTCDemo.

webrtc/examples/androidapp/src/org/appspot/apprtc/SettingsActivity.java

 /*
  *  Copyright 2014 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 22 matching lines @@
   private String keyprefCaptureToTexture;
 
   private String keyprefStartAudioBitrateType;
   private String keyprefStartAudioBitrateValue;
   private String keyPrefAudioCodec;
   private String keyprefNoAudioProcessing;
   private String keyprefOpenSLES;
 
   private String keyPrefRoomServerUrl;
   private String keyPrefDisplayHud;
+  private String keyPrefTracing;
 
   @Override
   protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     keyprefVideoCall = getString(R.string.pref_videocall_key);
     keyprefResolution = getString(R.string.pref_resolution_key);
     keyprefFps = getString(R.string.pref_fps_key);
     keyprefCaptureQualitySlider = getString(R.string.pref_capturequalityslider_key);
     keyprefStartVideoBitrateType = getString(R.string.pref_startvideobitrate_key);
     keyprefStartVideoBitrateValue = getString(R.string.pref_startvideobitratevalue_key);
     keyPrefVideoCodec = getString(R.string.pref_videocodec_key);
     keyprefHwCodec = getString(R.string.pref_hwcodec_key);
     keyprefCaptureToTexture = getString(R.string.pref_capturetotexture_key);
 
     keyprefStartAudioBitrateType = getString(R.string.pref_startaudiobitrate_key);
     keyprefStartAudioBitrateValue = getString(R.string.pref_startaudiobitratevalue_key);
     keyPrefAudioCodec = getString(R.string.pref_audiocodec_key);
     keyprefNoAudioProcessing = getString(R.string.pref_noaudioprocessing_key);
     keyprefOpenSLES = getString(R.string.pref_opensles_key);
 
     keyPrefRoomServerUrl = getString(R.string.pref_room_server_url_key);
     keyPrefDisplayHud = getString(R.string.pref_displayhud_key);
+    keyPrefTracing = getString(R.string.pref_tracing_key);
 
     // Display the fragment as the main content.
     settingsFragment = new SettingsFragment();
     getFragmentManager().beginTransaction()
         .replace(android.R.id.content, settingsFragment)
         .commit();
   }
 
   @Override
   protected void onResume() {
@@ skipping 15 matching lines @@
 
     updateSummary(sharedPreferences, keyprefStartAudioBitrateType);
     updateSummaryBitrate(sharedPreferences, keyprefStartAudioBitrateValue);
     setAudioBitrateEnable(sharedPreferences);
     updateSummary(sharedPreferences, keyPrefAudioCodec);
     updateSummaryB(sharedPreferences, keyprefNoAudioProcessing);
     updateSummaryB(sharedPreferences, keyprefOpenSLES);
 
     updateSummary(sharedPreferences, keyPrefRoomServerUrl);
     updateSummaryB(sharedPreferences, keyPrefDisplayHud);
+    updateSummaryB(sharedPreferences, keyPrefTracing);
   }
 
   @Override
   protected void onPause() {
     super.onPause();
     SharedPreferences sharedPreferences =
         settingsFragment.getPreferenceScreen().getSharedPreferences();
     sharedPreferences.unregisterOnSharedPreferenceChangeListener(this);
   }
 
   @Override
   public void onSharedPreferenceChanged(SharedPreferences sharedPreferences,
       String key) {
     if (key.equals(keyprefResolution)
         || key.equals(keyprefFps)
         || key.equals(keyprefStartVideoBitrateType)
         || key.equals(keyPrefVideoCodec)
         || key.equals(keyprefStartAudioBitrateType)
         || key.equals(keyPrefAudioCodec)
         || key.equals(keyPrefRoomServerUrl)) {
       updateSummary(sharedPreferences, key);
     } else if (key.equals(keyprefStartVideoBitrateValue)
         || key.equals(keyprefStartAudioBitrateValue)) {
       updateSummaryBitrate(sharedPreferences, key);
     } else if (key.equals(keyprefVideoCall)
+        || key.equals(keyPrefTracing)
         || key.equals(keyprefCaptureQualitySlider)
         || key.equals(keyprefHwCodec)
         || key.equals(keyprefCaptureToTexture)
         || key.equals(keyprefNoAudioProcessing)
         || key.equals(keyprefOpenSLES)
         || key.equals(keyPrefDisplayHud)) {
       updateSummaryB(sharedPreferences, key);
     }
     if (key.equals(keyprefStartVideoBitrateType)) {
       setVideoBitrateEnable(sharedPreferences);
@@ skipping 41 matching lines @@
     String bitrateTypeDefault = getString(R.string.pref_startaudiobitrate_default);
     String bitrateType = sharedPreferences.getString(
         keyprefStartAudioBitrateType, bitrateTypeDefault);
     if (bitrateType.equals(bitrateTypeDefault)) {
       bitratePreferenceValue.setEnabled(false);
     } else {
       bitratePreferenceValue.setEnabled(true);
     }
   }
 }