com.facebook.react.bridge.ReadableMap#hasKey ( )源码实例Demo

@Override
public void resetConfig(ReadableMap config) {
  ReadableArray frames = config.getArray("frames");
  int numberOfFrames = frames.size();
  if (mFrames == null || mFrames.length != numberOfFrames) {
    mFrames = new double[numberOfFrames];
  }
  for (int i = 0; i < numberOfFrames; i++) {
    mFrames[i] = frames.getDouble(i);
  }
  mToValue = config.hasKey("toValue") ? config.getDouble("toValue") : 0;
  mIterations = config.hasKey("iterations") ? config.getInt("iterations") : 1;
  mCurrentLoop = 1;
  mHasFinished = mIterations == 0;
  mStartFrameTimeNanos = -1;
}
 

public RNAGSGraphicsOverlay(ReadableMap rawData, GraphicsOverlay graphicsOverlay) {
    this.referenceId = rawData.getString("referenceId");
    ReadableArray pointImageDictionaryRaw = rawData.getArray("pointGraphics");
    pointImageDictionary = new HashMap<>();
    this.graphicsOverlay = graphicsOverlay;

    for (int i = 0; i < pointImageDictionaryRaw.size(); i++) {
        ReadableMap item = pointImageDictionaryRaw.getMap(i);
        if (item.hasKey("graphicId")) {
            String graphicId = item.getString("graphicId");
            String uri = item.getMap("graphic").getString("uri");
            pointImageDictionary.put(graphicId, uri);
        }
    }
    // Create graphics within overlay
    ReadableArray rawPoints = rawData.getArray("points");
    for (int i = 0; i < rawPoints.size(); i++) {
        addGraphicsLoop(rawPoints.getMap(i));

    }
}
 

@ReactMethod
public void setVisitorInfo(ReadableMap options) {
    VisitorInfo.Builder builder = new VisitorInfo.Builder();

    if (options.hasKey("name")) {
        builder.name(options.getString("name"));
    }
    if (options.hasKey("email")) {
        builder.email(options.getString("email"));
    }
    if (options.hasKey("phone")) {
        builder.phoneNumber(options.getString("phone"));
    }

    VisitorInfo visitorData = builder.build();

    ZopimChat.setVisitorInfo(visitorData);
}
 

SocketClient(ReadableMap params, ReactContext reactContext) {
    //String addr, int port, boolean autoReconnect
    mReactContext = reactContext;
    dstAddress = params.getString("address");
    dstPort = params.getInt("port");
    if (params.hasKey("timeout")) {
        timeout = params.getInt("timeout");
    } else {
        timeout = 60000;
    }
    if (params.hasKey("reconnect")) {
        reconnectOnClose = params.getBoolean("reconnect");
    }
    if (params.hasKey("maxReconnectAttempts")) {
        maxReconnectAttempts = params.getInt("maxReconnectAttempts");
    }
    if (params.hasKey("reconnectDelay")) {
        reconnectDelay = params.getInt("reconnectDelay");
    }

    Thread socketClientThread = new Thread(new SocketClientThread());
    socketClientThread.start();
}
 

private Bundle createFragmentArguments(ReadableMap options) {
  final Bundle args = new Bundle();
  if (options.hasKey(ARG_DATE) && !options.isNull(ARG_DATE)) {
    args.putLong(ARG_DATE, (long) options.getDouble(ARG_DATE));
  }
  if (options.hasKey(ARG_MINDATE) && !options.isNull(ARG_MINDATE)) {
    args.putLong(ARG_MINDATE, (long) options.getDouble(ARG_MINDATE));
  }
  if (options.hasKey(ARG_MAXDATE) && !options.isNull(ARG_MAXDATE)) {
    args.putLong(ARG_MAXDATE, (long) options.getDouble(ARG_MAXDATE));
  }
  if (options.hasKey(ARG_MODE) && !options.isNull(ARG_MODE)) {
    args.putString(ARG_MODE, options.getString(ARG_MODE));
  }
  return args;
}
 

@Override
public RequestBody toRequestBody(ReadableMap data, String contentType) {
  String type = contentType;
  if (data.hasKey("type") && !data.getString("type").isEmpty()) {
    type = data.getString("type");
  }
  if (type == null) {
    type = "application/octet-stream";
  }
  ReadableMap blob = data.getMap("blob");
  String blobId = blob.getString("blobId");
  byte[] bytes = resolve(
    blobId,
    blob.getInt("offset"),
    blob.getInt("size"));

  return RequestBody.create(MediaType.parse(type), bytes);
}
 

private IconImageInfo getIconImageInfo(ReadableMap source) {
  if (source.hasKey(PROP_ICON_WIDTH) && source.hasKey(PROP_ICON_HEIGHT)) {
    final int width = Math.round(PixelUtil.toPixelFromDIP(source.getInt(PROP_ICON_WIDTH)));
    final int height = Math.round(PixelUtil.toPixelFromDIP(source.getInt(PROP_ICON_HEIGHT)));
    return new IconImageInfo(width, height);
  } else {
    return null;
  }
}
 

public static @Nullable ReadableMap getReadableMap(@NonNull ReadableMap map, @NonNull String key) {
    if (!map.hasKey(key)) {
        return null;
    }

    return map.getMap(key);
}
 

@ReactMethod
public void createClient(ReadableMap props, final Promise promise) {
    final RCTTwilioIPMessagingClient tmp = RCTTwilioIPMessagingClient.getInstance();
    TwilioAccessManager accessManager = RCTTwilioAccessManager.getInstance().accessManager;

    TwilioIPMessagingClient.Properties.Builder builder = new TwilioIPMessagingClient.Properties.Builder();

    if (props != null) {
        if (props.hasKey("initialMessageCount")) {
            builder.setInitialMessageCount(props.getInt("initialMessageCount"));
        }
        if (props.hasKey("synchronizationStrategy")) {
            builder.setSynchronizationStrategy(TwilioIPMessagingClient.SynchronizationStrategy.valueOf(props.getString("synchronizationStrategy")));
        }
    }

    Constants.CallbackListener<TwilioIPMessagingClient> listener = new Constants.CallbackListener<TwilioIPMessagingClient>() {
        @Override
        public void onError(ErrorInfo errorInfo) {
            super.onError(errorInfo);
            promise.reject("create-client-error", "Error occurred while attempting to create the client. Error Message: " + errorInfo.getErrorText());
        }

        @Override
        public void onSuccess(TwilioIPMessagingClient twilioIPMessagingClient) {
            tmp.client = twilioIPMessagingClient;
            promise.resolve(RCTConvert.TwilioIPMessagingClient(tmp.client));
        }
    };
    tmp.client = TwilioIPMessagingSDK.createClient(accessManager, builder.createProperties(), listener);
    tmp.client.setListener(this);
}
 

private LinkObject createLinkObject(ReadableMap link) {
  LinkObject.Builder linkObject = LinkObject.newBuilder();
  if (link.hasKey("webURL")) linkObject.setWebUrl(link.getString("webURL"));
  if (link.hasKey("mobileWebURL")) linkObject.setMobileWebUrl(link.getString("mobileWebURL"));
  if (link.hasKey("androidExecutionParams"))
    linkObject.setAndroidExecutionParams(link.getString("androidExecutionParams"));
  if (link.hasKey("iosExecutionParams"))
    linkObject.setIosExecutionParams(link.getString("iosExecutionParams"));
  return linkObject.build();
}
 

@ReactMethod
public void createClient(String token, ReadableMap props, final Promise promise) {
    final RCTTwilioChatClient tmp = RCTTwilioChatClient.getInstance();
    ChatClient.Properties.Builder builder = new ChatClient.Properties.Builder();

    if (props != null) {
        if (props.hasKey("initialMessageCount")) {
            builder.setInitialMessageCount(props.getInt("initialMessageCount"));
        }
        if (props.hasKey("synchronizationStrategy")) {
            builder.setSynchronizationStrategy(ChatClient.SynchronizationStrategy.valueOf(props.getString("synchronizationStrategy")));
        }
    }

    ChatClient.create(reactContext, token, builder.createProperties(), new CallbackListener<ChatClient>() {
        @Override
        public void onError(ErrorInfo errorInfo) {
            super.onError(errorInfo);
            promise.reject("create-client-error", "Error occurred while attempting to create the client. Error Message: " + errorInfo.getErrorText());
        }

        @Override
        public void onSuccess(ChatClient twilioChatClient) {
            tmp.client = twilioChatClient;
            tmp.client.setListener(tmp);
            promise.resolve(RCTConvert.ChatClient(tmp.client));
        }
    });
}
 

@ReactProp(name = "selection")
public void setSelection(ReactEditText view, @Nullable ReadableMap selection) {
  if (selection == null) {
    return;
  }

  if (selection.hasKey("start") && selection.hasKey("end")) {
    view.setSelection(selection.getInt("start"), selection.getInt("end"));
  }
}
 

public static SipMessageDTO fromReadableMap(ReadableMap data) {
    SipMessageDTO result = new SipMessageDTO();

    if (data.hasKey("targetURI")) {
        result.setTargetUri(data.getString("targetURI"));
    }
    if (data.hasKey("headers")) {
        ReadableMap headersData = data.getMap("headers");
        ReadableMapKeySetIterator headersIt = headersData.keySetIterator();
        Map<String, String> headers = new HashMap<>();

        while (headersIt.hasNextKey()) {
            String key = headersIt.nextKey();
            headers.put(key, headersData.getString(key));
        }

        result.setHeaders(headers);
    }
    if (data.hasKey("contentType")) {
        result.setContentType(data.getString("contentType"));
    }
    if (data.hasKey("body")) {
        result.setBody(data.getString("body"));
    }

    return result;
}
 

private IconImageInfo getIconImageInfo(ReadableMap source) {
  if (source.hasKey(PROP_ICON_WIDTH) && source.hasKey(PROP_ICON_HEIGHT)) {
    final int width = Math.round(PixelUtil.toPixelFromDIP(source.getInt(PROP_ICON_WIDTH)));
    final int height = Math.round(PixelUtil.toPixelFromDIP(source.getInt(PROP_ICON_HEIGHT)));
    return new IconImageInfo(width, height);
  } else {
    return null;
  }
}
 

public static @Nullable Boolean getBoolean(@NonNull ReadableMap map, @NonNull String key) {
    if (!map.hasKey(key)) {
        return null;
    }

    return map.getBoolean(key);
}
 

/**
 * Get the current position. This can return almost immediately if the location is cached or
 * request an update, which might take a while.
 *
 * @param options map containing optional arguments: timeout (millis), maximumAge (millis),
 *                highAccuracy (boolean), distanceFilter (double) and showLocationDialog (boolean)
 * @param success success callback
 * @param error   error callback
 */
@ReactMethod
public void getCurrentPosition(ReadableMap options, final Callback success, final Callback error) {
  ReactApplicationContext context = getContext();

  mSuccessCallback = success;
  mErrorCallback = error;

  if (!LocationUtils.hasLocationPermission(context)) {
    invokeError(
      LocationError.PERMISSION_DENIED.getValue(),
      "Location permission not granted.",
      true
    );
    return;
  }

  if (!LocationUtils.isGooglePlayServicesAvailable(context)) {
    invokeError(
      LocationError.PLAY_SERVICE_NOT_AVAILABLE.getValue(),
      "Google play service is not available.",
      true
    );
    return;
  }

  boolean highAccuracy = options.hasKey("enableHighAccuracy") &&
    options.getBoolean("enableHighAccuracy");

  // TODO: Make other PRIORITY_* constants available to the user
  mLocationPriority = highAccuracy ? LocationRequest.PRIORITY_HIGH_ACCURACY : DEFAULT_ACCURACY;

  mTimeout = options.hasKey("timeout") ? (long) options.getDouble("timeout") : Long.MAX_VALUE;
  mMaximumAge = options.hasKey("maximumAge")
    ? options.getDouble("maximumAge")
    : Double.POSITIVE_INFINITY;
  mDistanceFilter = options.hasKey("distanceFilter")
    ? (float) options.getDouble("distanceFilter")
    : 0;
  mShowLocationDialog = options.hasKey("showLocationDialog")
    ? options.getBoolean("showLocationDialog")
    : true;
  mForceRequestLocation = options.hasKey("forceRequestLocation")
    ? options.getBoolean("forceRequestLocation")
    : false;

  LocationSettingsRequest locationSettingsRequest = buildLocationSettingsRequest();

  if (mSettingsClient != null) {
    mSettingsClient.checkLocationSettings(locationSettingsRequest)
      .addOnCompleteListener(new OnCompleteListener<LocationSettingsResponse>() {
        @Override
        public void onComplete(@NonNull Task<LocationSettingsResponse> task) {
          onLocationSettingsResponse(task, true);
        }
      });
  }
}
 

public ShowOptions(@Nullable ReadableMap options) {
    if (options == null) {
        return;
    }

    if (options.hasKey(CLOSABLE_KEY)) {
        closable = options.getBoolean(CLOSABLE_KEY);
        Log.d(TAG, CLOSABLE_KEY + closable);
    }

    if (options.hasKey(DISABLE_SIGNUP)) {
         disableSignUp = options.getBoolean(DISABLE_SIGNUP);
         Log.d(TAG, DISABLE_SIGNUP + disableSignUp);
    }

    if (options.hasKey(DISABLE_RESET_PASSWORD)) {
         disableResetPassword = options.getBoolean(DISABLE_RESET_PASSWORD);
         Log.d(TAG, DISABLE_RESET_PASSWORD + disableResetPassword);
    }

    if (options.hasKey(USE_MAGIC_LINK_KEY)) {
        useMagicLink = options.getBoolean(USE_MAGIC_LINK_KEY);
        Log.d(TAG, USE_MAGIC_LINK_KEY + useMagicLink);
    }

    if (options.hasKey(AUTH_PARAMS_KEY)) {
        ReadableMap reactMap = options.getMap(AUTH_PARAMS_KEY);
        authParams = OptionsHelper.convertReadableMapToMap(reactMap);
        Log.d(TAG, AUTH_PARAMS_KEY + authParams);
    }

    if (options.hasKey(CONNECTIONS_KEY)) {
        ReadableArray connections = options.getArray(CONNECTIONS_KEY);
        List<String> list = new ArrayList<>(connections.size());
        for (int i = 0; i < connections.size(); i++) {
            String connectionName = connections.getString(i);
            switch (connectionName) {
                case LockReactModule.CONNECTION_EMAIL:
                    connectionType = LockReactModule.CONNECTION_EMAIL;
                    break;
                case LockReactModule.CONNECTION_SMS:
                    connectionType = LockReactModule.CONNECTION_SMS;
                    break;
            }
            list.add(connectionName);
        }
        this.connections = new String[list.size()];
        this.connections = list.toArray(this.connections);
        Log.d(TAG, CONNECTIONS_KEY + list);
    }
}
 

@ReactMethod
public void createNotificationChannel(ReadableMap details, Promise promise){
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        NotificationManager mngr = (NotificationManager) getReactApplicationContext().getSystemService(NOTIFICATION_SERVICE);
        String id = details.getString("id");
        String name = details.getString("name");
        String priority = details.getString("priority");
        int importance;
        switch(priority) {
            case "min":
                importance = NotificationManager.IMPORTANCE_MIN;
                break;
            case "low":
                importance = NotificationManager.IMPORTANCE_LOW;
                break;
            case "high":
                importance = NotificationManager.IMPORTANCE_HIGH;
                break;
            case "max":
                importance = NotificationManager.IMPORTANCE_MAX;
                break;
            default:
                importance = NotificationManager.IMPORTANCE_DEFAULT;
        }
        if (mngr.getNotificationChannel(id) != null) {
            promise.resolve(null);
            return;
        }
        //
        NotificationChannel channel = new NotificationChannel(
                id,
                name,
                importance);
        // Configure the notification channel.
        if(details.hasKey("description")){
            channel.setDescription(details.getString("description"));
        }
        mngr.createNotificationChannel(channel);
    }
    promise.resolve(null);
}
 

@ReactMethod
public void promptWithArgs(ReadableMap options, final Callback callback) {
    final FragmentManagerHelper fragmentManagerHelper = getFragmentManagerHelper();
    if (fragmentManagerHelper == null) {
        FLog.w(RNPromptModule.class, "Tried to show an alert while not attached to an Activity");
        return;
    }

    final Bundle args = new Bundle();
    if (options.hasKey(KEY_TITLE)) {
        args.putString(RNPromptFragment.ARG_TITLE, options.getString(KEY_TITLE));
    }
    if (options.hasKey(KEY_MESSAGE)) {
        String message = options.getString(KEY_MESSAGE);
        if (!message.isEmpty()) {
            args.putString(RNPromptFragment.ARG_MESSAGE, options.getString(KEY_MESSAGE));
        }
    }
    if (options.hasKey(KEY_BUTTON_POSITIVE)) {
        args.putString(RNPromptFragment.ARG_BUTTON_POSITIVE, options.getString(KEY_BUTTON_POSITIVE));
    }
    if (options.hasKey(KEY_BUTTON_NEGATIVE)) {
        args.putString(RNPromptFragment.ARG_BUTTON_NEGATIVE, options.getString(KEY_BUTTON_NEGATIVE));
    }
    if (options.hasKey(KEY_BUTTON_NEUTRAL)) {
        args.putString(RNPromptFragment.ARG_BUTTON_NEUTRAL, options.getString(KEY_BUTTON_NEUTRAL));
    }
    if (options.hasKey(KEY_ITEMS)) {
        ReadableArray items = options.getArray(KEY_ITEMS);
        CharSequence[] itemsArray = new CharSequence[items.size()];
        for (int i = 0; i < items.size(); i++) {
            itemsArray[i] = items.getString(i);
        }
        args.putCharSequenceArray(RNPromptFragment.ARG_ITEMS, itemsArray);
    }
    if (options.hasKey(KEY_CANCELABLE)) {
        args.putBoolean(KEY_CANCELABLE, options.getBoolean(KEY_CANCELABLE));
    }
    if (options.hasKey(KEY_TYPE)) {
        args.putString(KEY_TYPE, options.getString(KEY_TYPE));
    }
    if (options.hasKey(KEY_STYLE)) {
        args.putString(KEY_STYLE, options.getString(KEY_STYLE));
    }
    if (options.hasKey(KEY_DEFAULT_VALUE)) {
        args.putString(KEY_DEFAULT_VALUE, options.getString(KEY_DEFAULT_VALUE));
    }
    if (options.hasKey(KEY_PLACEHOLDER)) {
        args.putString(KEY_PLACEHOLDER, options.getString(KEY_PLACEHOLDER));
    }
    fragmentManagerHelper.showNewAlert(mIsInForeground, args, callback);
}
 

@ReactProp(name = "source")
public void setSource(WebView view, @Nullable ReadableMap source) {
  if (source != null) {
    if (source.hasKey("html")) {
      String html = source.getString("html");
      if (source.hasKey("baseUrl")) {
        view.loadDataWithBaseURL(
          source.getString("baseUrl"), html, HTML_MIME_TYPE, HTML_ENCODING, null);
      } else {
        view.loadData(html, HTML_MIME_TYPE, HTML_ENCODING);
      }
      return;
    }
    if (source.hasKey("uri")) {
      String url = source.getString("uri");
      String previousUrl = view.getUrl();
      if (previousUrl != null && previousUrl.equals(url)) {
        return;
      }
      if (source.hasKey("method")) {
        String method = source.getString("method");
        if (method.equals(HTTP_METHOD_POST)) {
          byte[] postData = null;
          if (source.hasKey("body")) {
            String body = source.getString("body");
            try {
              postData = body.getBytes("UTF-8");
            } catch (UnsupportedEncodingException e) {
              postData = body.getBytes();
            }
          }
          if (postData == null) {
            postData = new byte[0];
          }
          view.postUrl(url, postData);
          return;
        }
      }
      HashMap<String, String> headerMap = new HashMap<>();
      if (source.hasKey("headers")) {
        ReadableMap headers = source.getMap("headers");
        ReadableMapKeySetIterator iter = headers.keySetIterator();
        while (iter.hasNextKey()) {
          String key = iter.nextKey();
          if ("user-agent".equals(key.toLowerCase(Locale.ENGLISH))) {
            if (view.getSettings() != null) {
              view.getSettings().setUserAgentString(headers.getString(key));
            }
          } else {
            headerMap.put(key, headers.getString(key));
          }
        }
      }
      view.loadUrl(url, headerMap);
      return;
    }
  }
  view.loadUrl(BLANK_URL);
}