java类com.facebook.react.bridge.Arguments的实例源码

@SuppressWarnings("deprecation")
public WritableMap getCameraInfo(int index) {
    CameraInfo info = new CameraInfo();

    Size size = null;
    try {
        Camera.getCameraInfo(index, info);
        Camera camera = Camera.open(index);
        size = getMaxSupportedVideoSize(camera);
        camera.release();
    } catch (Exception var3) {
        Logging.e("CameraEnumerationAndroid", "getCameraInfo failed on index " + index, var3);

        return null;
    }
    WritableMap params = Arguments.createMap();
    String facing = info.facing == 1 ? "front" : "back";
    params.putString("label", "Camera " + index + ", Facing " + facing + ", Orientation " + info.orientation);
    params.putString("id", "" + index);
    params.putString("facing", facing);
    params.putString("kind", "video");
    params.putString("maxWidth", String.valueOf(size.width));
    params.putString("maxHeight", String.valueOf(size.height));

    return params;
}

@Override
public boolean onInfo(MediaPlayer mp, int what, int extra) {
    switch (what) {
        case MediaPlayer.MEDIA_INFO_BUFFERING_START:
            mEventEmitter.receiveEvent(getId(), Events.EVENT_STALLED.toString(), Arguments.createMap());
            break;
        case MediaPlayer.MEDIA_INFO_BUFFERING_END:
            mEventEmitter.receiveEvent(getId(), Events.EVENT_RESUME.toString(), Arguments.createMap());
            break;
        case MediaPlayer.MEDIA_INFO_VIDEO_RENDERING_START:
            mEventEmitter.receiveEvent(getId(), Events.EVENT_READY_FOR_DISPLAY.toString(), Arguments.createMap());
            break;

        default:
    }
    return false;
}

@ReactMethod
public void queryCache(final ReadableArray uris, final Promise promise) {
  // perform cache interrogation in async task as disk cache checks are expensive
  new GuardedAsyncTask<Void, Void>(getReactApplicationContext()) {
    @Override
    protected void doInBackgroundGuarded(Void... params) {
      WritableMap result = Arguments.createMap();
      ImagePipeline imagePipeline = Fresco.getImagePipeline();
      for (int i = 0; i < uris.size(); i++) {
        String uriString = uris.getString(i);
        final Uri uri = Uri.parse(uriString);
        if (imagePipeline.isInBitmapMemoryCache(uri)) {
          result.putString(uriString, "memory");
        } else if (imagePipeline.isInDiskCacheSync(uri)) {
          result.putString(uriString, "disk");
        }
      }
      promise.resolve(result);
    }
  }.executeOnExecutor(GuardedAsyncTask.THREAD_POOL_EXECUTOR);
}

@ReactMethod
public void getEnginesInfo(Promise promise) {
    if(notReady(promise)) return;

    try {
        WritableArray ttsInfo = Arguments.createArray();

        List<TextToSpeech.EngineInfo> engineList = tts.getEngines();
        Iterator iterator = engineList.iterator();
        while(iterator.hasNext()) {
            ttsInfo.pushString(iterator.next().toString());
        }

        promise.resolve(ttsInfo);
    } catch(Exception e) {
        promise.reject("error", "Unable to retrieve TTS Engine info for getEnginesInfo()", e);
    }
}

private void handleError() {
  LogUtils.d(TAG, "handleError");
  if(tweetView != null) {
    tweetView.setVisibility(View.INVISIBLE);
  }

  WritableMap evt = Arguments.createMap();
  evt.putString("message", "Could not load tweet");

  ReactContext ctx = (ReactContext) getContext();
  ctx.getJSModule(RCTEventEmitter.class).receiveEvent(
          getId(),
          "onLoadError",
          evt);

}

public static WritableMap jsonToReact(JSONObject jsonObject) throws JSONException {
    WritableMap writableMap = Arguments.createMap();
    Iterator iterator = jsonObject.keys();
    while(iterator.hasNext()) {
        String key = (String) iterator.next();
        Object value = jsonObject.get(key);
        if (value instanceof Float || value instanceof Double) {
            writableMap.putDouble(key, jsonObject.getDouble(key));
        } else if (value instanceof Number) {
            writableMap.putInt(key, jsonObject.getInt(key));
        } else if (value instanceof String) {
            writableMap.putString(key, jsonObject.getString(key));
        } else if (value instanceof JSONObject) {
            writableMap.putMap(key,jsonToReact(jsonObject.getJSONObject(key)));
        } else if (value instanceof JSONArray){
            writableMap.putArray(key, jsonToReact(jsonObject.getJSONArray(key)));
        } else if (value == JSONObject.NULL){
            writableMap.putNull(key);
        }
    }

    return writableMap;
}

private void listenVolume(final ReactApplicationContext reactContext) {
    volumeBR = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            if (intent.getAction().equals("android.media.VOLUME_CHANGED_ACTION")) {
                WritableMap para = Arguments.createMap();
                para.putDouble("value", getNormalizationVolume(VOL_MUSIC));
                para.putDouble(VOL_VOICE_CALL, getNormalizationVolume(VOL_VOICE_CALL));
                para.putDouble(VOL_SYSTEM, getNormalizationVolume(VOL_SYSTEM));
                para.putDouble(VOL_RING, getNormalizationVolume(VOL_RING));
                para.putDouble(VOL_MUSIC, getNormalizationVolume(VOL_MUSIC));
                para.putDouble(VOL_ALARM, getNormalizationVolume(VOL_ALARM));
                para.putDouble(VOL_NOTIFICATION, getNormalizationVolume(VOL_NOTIFICATION));
                reactContext.getJSModule(DeviceEventManagerModule.RCTDeviceEventEmitter.class)
                        .emit("EventVolume", para);
            }
        }
    };
    filter = new IntentFilter("android.media.VOLUME_CHANGED_ACTION");

    reactContext.registerReceiver(volumeBR, filter);
}

private void checkForKeyboardEvents() {
  getRootView().getWindowVisibleDisplayFrame(mVisibleViewArea);
  final int heightDiff =
    DisplayMetricsHolder.getWindowDisplayMetrics().heightPixels - mVisibleViewArea.bottom;
  if (mKeyboardHeight != heightDiff && heightDiff > mMinKeyboardHeightDetected) {
    // keyboard is now showing, or the keyboard height has changed
    mKeyboardHeight = heightDiff;
    WritableMap params = Arguments.createMap();
    WritableMap coordinates = Arguments.createMap();
    coordinates.putDouble("screenY", PixelUtil.toDIPFromPixel(mVisibleViewArea.bottom));
    coordinates.putDouble("screenX", PixelUtil.toDIPFromPixel(mVisibleViewArea.left));
    coordinates.putDouble("width", PixelUtil.toDIPFromPixel(mVisibleViewArea.width()));
    coordinates.putDouble("height", PixelUtil.toDIPFromPixel(mKeyboardHeight));
    params.putMap("endCoordinates", coordinates);
    sendEvent("keyboardDidShow", params);
  } else if (mKeyboardHeight != 0 && heightDiff <= mMinKeyboardHeightDetected) {
    // keyboard is now hidden
    mKeyboardHeight = 0;
    sendEvent("keyboardDidHide", null);
  }
}

@ReactMethod
public void _newAsyncObject(final String name, String defaultValue) {
    try {
        JSONObject object = new JSONObject(defaultValue);
        TaplyticsVar var = new TaplyticsVar<>(name, object, new TaplyticsVarListener() {
            @Override
            public void variableUpdated(Object o) {
                WritableMap params = Arguments.createMap();
                params.putString("value", ((JSONObject) o).toString());
                sendEvent(name, params);
            }
        });
    } catch (JSONException e) {
        Log.e(tagName, e.getMessage());
    }
}

private WritableMap getIntentData(Intent intent) {
    WritableMap data = Arguments.createMap();
    JSONObject dataObject = new JSONObject();
    try {
        if (intent.hasExtra("tl_id")) {
            dataObject.put("tl_id", intent.getExtras().getString("tl_id"));
        }
        if (intent.hasExtra("custom_keys")) {
            dataObject.put("custom_keys", new JSONObject(intent.getExtras().getString("custom_keys")));
        }
    } catch (Throwable ignored) {
        //Ignore the bad JSON for now. Log here as you please.
    }
    data.putString("value", dataObject.toString());
    return data;
}

private void processDataSet(DataSet dataSet, WritableArray map) {
    //Log.i(TAG, "Data returned for Data type: " + dataSet.getDataType().getName());

    DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
    dateFormat.setTimeZone(TimeZone.getDefault());

    WritableMap stepMap = Arguments.createMap();

    for (DataPoint dp : dataSet.getDataPoints()) {
        Log.i(TAG, "\tData point:");
        Log.i(TAG, "\t\tType : " + dp.getDataType().getName());
        Log.i(TAG, "\t\tStart: " + dateFormat.format(dp.getStartTime(TimeUnit.MILLISECONDS)));
        Log.i(TAG, "\t\tEnd  : " + dateFormat.format(dp.getEndTime(TimeUnit.MILLISECONDS)));

        for(Field field : dp.getDataType().getFields()) {
            Log.i(TAG, "\t\tField: " + field.getName() +
                    " Value: " + dp.getValue(field));

            stepMap.putDouble("startDate", dp.getStartTime(TimeUnit.MILLISECONDS));
            stepMap.putDouble("endDate", dp.getEndTime(TimeUnit.MILLISECONDS));
            stepMap.putDouble("steps", dp.getValue(field).asInt());
            map.pushMap(stepMap);
        }
    }
}

@ReactMethod
public void startListeningToAnimatedNodeValue(final int tag) {
  final AnimatedNodeValueListener listener = new AnimatedNodeValueListener() {
    public void onValueUpdate(double value) {
      WritableMap onAnimatedValueData = Arguments.createMap();
      onAnimatedValueData.putInt("tag", tag);
      onAnimatedValueData.putDouble("value", value);
      getReactApplicationContext().getJSModule(DeviceEventManagerModule.RCTDeviceEventEmitter.class)
          .emit("onAnimatedValueUpdate", onAnimatedValueData);
    }
  };

  mOperations.add(new UIThreadOperation() {
    @Override
    public void execute(NativeAnimatedNodesManager animatedNodesManager) {
      animatedNodesManager.startListeningToAnimatedNodeValue(tag, listener);
    }
  });
}

private void sendResponse(String status, String message, Promise promise) {
    Reprint.cancelAuthentication();
    response = Arguments.createMap();
    response.putString("status", status);
    response.putString("error", message);
    promise.resolve(response);
}

@ReactMethod
public void scheduleLocalNotification(ReadableMap details) {
    Bundle bundle = Arguments.toBundle(details);
    // If notification ID is not provided by the user, generate one at random
    if (bundle.getString("id") == null) {
        bundle.putString("id", String.valueOf(mRandomNumberGenerator.nextInt()));
    }
    mRNPushNotificationHelper.sendNotificationScheduled(bundle);
}

@Override
public void onEvent(int eventType, Bundle params) {
  Logger.debug(TAG, "onEvent: " + eventType);
  WritableMap data = Arguments.createMap();
  data.putInt("eventType", eventType);
  data.putMap("params", Arguments.fromBundle(params));
  emit(SPEECH_TO_TEXT, data);
}

public ReactVideoView(ThemedReactContext themedReactContext) {
    super(themedReactContext);

    mThemedReactContext = themedReactContext;
    mEventEmitter = themedReactContext.getJSModule(RCTEventEmitter.class);
    themedReactContext.addLifecycleEventListener(this);

    initializeMediaPlayerIfNeeded();
    setSurfaceTextureListener(this);

    mProgressUpdateRunnable = new Runnable() {
        @Override
        public void run() {

            if (mMediaPlayerValid && !isCompleted &&!mPaused) {
                WritableMap event = Arguments.createMap();
                event.putDouble(EVENT_PROP_CURRENT_TIME, mMediaPlayer.getCurrentPosition() / 1000.0);
                event.putDouble(EVENT_PROP_PLAYABLE_DURATION, mVideoBufferedDuration / 1000.0); //TODO:mBufferUpdateRunnable
                mEventEmitter.receiveEvent(getId(), Events.EVENT_PROGRESS.toString(), event);

                // Check for update after an interval
                // TODO: The update interval is fixed at 250. There is a property in React component that defines this value. Totally ignored !!!
                mProgressUpdateHandler.postDelayed(mProgressUpdateRunnable, 250);
            }
        }
    };
}

@Override
public void onReceive(Context context, Intent intent) {
    WritableMap params = Arguments.createMap();

    switch(intent.getAction()) {
        case "update-position-event":
            int nCurrentPosition = intent.getIntExtra("currentPosition", 0);
            params.putInt("currentPosition", nCurrentPosition);
            sendEvent("onPlaybackPositionUpdated", params);
            break;
        case "change-playback-action-event":
            String strAction = intent.getStringExtra("action");
            params.putString("action", strAction);
            sendEvent("onPlaybackActionChanged", params);
            break;
        case "change-playback-state-event":
            int nState = intent.getIntExtra("state", 0);
            if (mStateMap.containsKey(nState)) {
                params.putString("state", mStateMap.get(nState));
                sendEvent("onPlaybackStateChanged", params);
            }
            break;
        case "playback-error-event":
            String strError = intent.getStringExtra("msg");
            params.putString("msg", strError);
            sendEvent("onPlaybackError", params);
        default:
            break;
    }
}

public static void onRequestError(
  RCTDeviceEventEmitter eventEmitter,
  int requestId,
  String error,
  IOException e) {
  WritableArray args = Arguments.createArray();
  args.pushInt(requestId);
  args.pushString(error);

  if ((e != null) && (e.getClass() == SocketTimeoutException.class)) {
    args.pushBoolean(true); // last argument is a time out boolean
  }

  eventEmitter.emit("didCompleteNetworkResponse", args);
}

public static void onRequestSuccess(RCTDeviceEventEmitter eventEmitter, int requestId) {
  WritableArray args = Arguments.createArray();
  args.pushInt(requestId);
  args.pushNull();

  eventEmitter.emit("didCompleteNetworkResponse", args);
}

/**
 * Post an event to all event subscriber for the given name
 * Example: MSREventBridgeModule.emitEventContext(getApplicationContext(), "eventName", data);
 */
static public void emitEventContext(Context context, final String name, @Nullable WritableMap info) {
  Bundle bundle = new Bundle();
  bundle.putString(EventBridgeModuleEventNameKey, name);
  if (info != null) {
    bundle.putBundle(EventBridgeModuleEventInfoKey, Arguments.toBundle(info));
  }

  LocalBroadcastManager localBroadcastManager = LocalBroadcastManager.getInstance(context);
  Intent customEvent= new Intent(EventBridgeModuleIntentEventName);
  customEvent.putExtra(EventBridgeModuleIntentEventDataKey, bundle);
  localBroadcastManager.sendBroadcast(customEvent);
}

private void registerNotificationsRegistration() {
    IntentFilter intentFilter = new IntentFilter(getReactApplicationContext().getPackageName() + ".RNPushNotificationRegisteredToken");

    getReactApplicationContext().registerReceiver(new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            String token = intent.getStringExtra("token");
            WritableMap params = Arguments.createMap();
            params.putString("deviceToken", token);
            mJsDelivery.sendEvent("remoteNotificationsRegistered", params);
        }
    }, intentFilter);
}

@Override
public void onSignalingChange(PeerConnection.SignalingState signalingState) {
    WritableMap params = Arguments.createMap();
    params.putInt("id", id);
    params.putString("signalingState", signalingStateString(signalingState));
    webRTCModule.sendEvent("peerConnectionSignalingStateChanged", params);
}

@Deprecated
public void onActivityResult(final int requestCode, final int resultCode, final Intent intent) {
  if (mHelper == null) return;

  // Pass on the activity result to the helper for handling
  if (!mHelper.handleActivityResult(requestCode, resultCode, intent)) {
      // not handled, so handle it ourselves (here's where you'd
      // perform any handling of activity results not related to in-app
      // billing...
      WritableMap params = Arguments.createMap();
      params.putString("Warning","you need to use your activity to perfom billing");
      sendEvent(TAG, params);
  }
}

private WritableMap serializeEventData() {
  WritableMap eventData = Arguments.createMap();
  eventData.putInt("target", getViewTag());
  eventData.putDouble("value", getValue());
  eventData.putBoolean("fromUser", isFromUser());
  return eventData;
}

public static WritableArray Members(ArrayList<Member> members) {
    WritableArray array = Arguments.createArray();

    for (Member m : members) {
        array.pushMap(Member(m));
    }

    return array;
}

@Override
public void loadComplete(int pageCount) {
    WritableMap event = Arguments.createMap();
    event.putString("message", String.valueOf(pageCount));
    ReactContext reactContext = (ReactContext) this.getContext();
    reactContext.getJSModule(RCTEventEmitter.class).receiveEvent(
            this.getId(),
            "topChange",
            event
    );
}

@Override
public void phoneDataConnectionStateUpdated(int direction) {
    WritableMap map = Arguments.createMap();
    map.putInt("direction", direction);

    WritableMap result = Arguments.createMap();
    result.putString("type", "LISTEN_DATA_CONNECTION_STATE");
    result.putMap("data", map);

    sendEvent(PHONE_STATE_LISTENER, result);
}

@ReactMethod
public void getScheduledAlarms(Promise promise) {
    ArrayList<Bundle> bundles = anHelper.getScheduledAlarms();
    WritableArray array = Arguments.createArray();
    for(Bundle bundle:bundles){
        array.pushMap(Arguments.fromBundle(bundle));
    }
    promise.resolve(array);
}

private WritableMap createWebViewEvent(WebView webView, String url) {
  WritableMap event = Arguments.createMap();
  event.putDouble("target", webView.getId());
  // Don't use webView.getUrl() here, the URL isn't updated to the new value yet in callbacks
  // like onPageFinished
  event.putString("url", url);
  event.putBoolean("loading", !mLastLoadFailed && webView.getProgress() != 100);
  event.putString("title", webView.getTitle());
  event.putBoolean("canGoBack", webView.canGoBack());
  event.putBoolean("canGoForward", webView.canGoForward());
  return event;
}

@ReactMethod
public void download(final ReadableMap params, Callback callback){
    // 获取参数
    String url = params.hasKey("url") ? params.getString("url") : null;
    String description = params.hasKey("description") ? params.getString("description") : "downloading";
    // 判断是否未回调继续调用
    if(rctCallback!=null){
        WritableMap map = Arguments.createMap();
        map.putInt("status", -2);
        map.putString("description", "busy");
        map.putString("url",url);
        callback.invoke(map);
        return;
    }
    rctCallback = callback;
    rctParams = params;
    // 设置参数
    DownloadManager.Request request = new Request(Uri.parse(url));
    request.setAllowedNetworkTypes(Request.NETWORK_WIFI);

    request.setNotificationVisibility(Request.VISIBILITY_VISIBLE); // 是否通知
    MimeTypeMap mimeTypeMap = MimeTypeMap.getSingleton();
    String mimeString = mimeTypeMap.getMimeTypeFromExtension(MimeTypeMap.getFileExtensionFromUrl(url));
    request.setMimeType(mimeString); // 下载的文件类型
    request.setTitle("下载"); // 通知栏的标题
    request.setDescription(description); // 通知栏描述
    request.setAllowedOverRoaming(false); //漫游网络是否可以下载
    request.setAllowedOverMetered(false);
    request.setVisibleInDownloadsUi(true);

    //设置文件存放目录
    request.setDestinationInExternalFilesDir(mApplicationContext, Environment.DIRECTORY_DOWNLOADS, description);
    mTaskId = downloadManager.enqueue(request);
    //注册广播接收者，监听下载状态
    mApplicationContext.registerReceiver(receiver, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));
}