Java WritableMap.merge方法代碼示例

import com.facebook.react.bridge.WritableMap; //導入方法依賴的package包/類
public void testMapMerging() {
  mCatalystInstance.getJSModule(TestJSToJavaParametersModule.class).returnMapForMerge1();
  mCatalystInstance.getJSModule(TestJSToJavaParametersModule.class).returnMapForMerge2();
  waitForBridgeAndUIIdle();

  List<ReadableMap> maps = mRecordingTestModule.getMapCalls();
  assertEquals(2, maps.size());

  WritableMap dest = new WritableNativeMap();
  dest.merge(maps.get(0));
  dest.merge(maps.get(1));

  assertTrue(dest.hasKey("a"));
  assertTrue(dest.hasKey("b"));
  assertTrue(dest.hasKey("c"));
  assertTrue(dest.hasKey("d"));
  assertTrue(dest.hasKey("e"));
  assertTrue(dest.hasKey("f"));
  assertTrue(dest.hasKey("newkey"));

  assertEquals("overwrite", dest.getString("a"));
  assertEquals(41, dest.getInt("b"));
  assertEquals("string", dest.getString("c"));
  assertEquals(77, dest.getInt("d"));
  assertTrue(dest.isNull("e"));
  assertEquals(3, dest.getArray("f").size());
  assertEquals("newvalue", dest.getString("newkey"));
}
 

import com.facebook.react.bridge.WritableMap; //導入方法依賴的package包/類
public void testMapAccessibleAfterMerge() {
  mCatalystInstance.getJSModule(TestJSToJavaParametersModule.class).returnMapForMerge1();
  mCatalystInstance.getJSModule(TestJSToJavaParametersModule.class).returnMapForMerge2();
  waitForBridgeAndUIIdle();

  List<ReadableMap> maps = mRecordingTestModule.getMapCalls();
  assertEquals(2, maps.size());

  WritableMap dest = new WritableNativeMap();
  dest.merge(maps.get(0));
  dest.merge(maps.get(1));

  ReadableMap source = maps.get(1);

  assertTrue(source.hasKey("a"));
  assertTrue(source.hasKey("d"));
  assertTrue(source.hasKey("e"));
  assertTrue(source.hasKey("f"));
  assertTrue(source.hasKey("newkey"));

  assertFalse(source.hasKey("b"));
  assertFalse(source.hasKey("c"));

  assertEquals("overwrite", source.getString("a"));
  assertEquals(77, source.getInt("d"));
  assertTrue(source.isNull("e"));
  assertEquals(3, source.getArray("f").size());
  assertEquals("newvalue", source.getString("newkey"));
}
 

import com.facebook.react.bridge.WritableMap; //導入方法依賴的package包/類
/**
 * Handles incoming intents.
 * @param intent sent by Location Services. This Intent is provided to Location
 *               Services (inside a PendingIntent) when addGeofences() is called.
 */
@Override
protected void onHandleIntent(Intent intent) {
    GeofencingEvent geofencingEvent = GeofencingEvent.fromIntent(intent);
    if (geofencingEvent.hasError()) {
        String errorMessage = GeofenceErrorMessages.getErrorString(this,
                geofencingEvent.getErrorCode());
        Log.e(TAG, errorMessage);
        return;
    }

    // Get the transition type.
    int geofenceTransition = geofencingEvent.getGeofenceTransition();

    // Test that the reported transition was of interest.
    if (geofenceTransition == Geofence.GEOFENCE_TRANSITION_ENTER ||
            geofenceTransition == Geofence.GEOFENCE_TRANSITION_EXIT) {

        // Get the geofences that were triggered. A single event can trigger multiple geofences.
        List<Geofence> triggeringGeofences = geofencingEvent.getTriggeringGeofences();
        WritableArray writableArray = new WritableNativeArray();

        for (int i = 0; i < triggeringGeofences.size(); i++) {
            Geofence geofence = triggeringGeofences.get(i);
            String key = geofence.getRequestId();
            ReadableMap geofenceMap = getGeofenceFromKey(key);
            WritableMap writableMap = new WritableNativeMap();
            writableMap.merge(geofenceMap);
            writableMap.putString("transition", getTransitionString(geofenceTransition));
            writableArray.pushMap(writableMap);
        }

        // create final event emitter object argument
        WritableMap finalEventEmitterObject = new WritableNativeMap();
        finalEventEmitterObject.putArray("data", writableArray);
        finalEventEmitterObject.putString("event", "geofenceTrigger");

        SReactApplicationContext
                .getJSModule(DeviceEventManagerModule.RCTDeviceEventEmitter.class)
                .emit("GeofenceEvent", finalEventEmitterObject);
    } else {
        // Log the error.
        Log.e(TAG, "Geofence transition error: invalid transition type " + geofenceTransition);
    }
}