61 lines
1.4 KiB
JavaScript
61 lines
1.4 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @providesModule AppStateIOS
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*/
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'use strict';
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var NativeModules = require('NativeModules');
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var RCTDeviceEventEmitter = require('RCTDeviceEventEmitter');
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var RCTAppState = NativeModules.AppState;
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var logError = require('logError');
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var DEVICE_APPSTATE_EVENT = 'appStateDidChange';
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var _appStateHandlers = {};
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class AppStateIOS {
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static addEventListener(type, handler) {
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_appStateHandlers[handler] = RCTDeviceEventEmitter.addListener(
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DEVICE_APPSTATE_EVENT,
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(appStateData) => {
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handler(appStateData.app_state);
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}
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);
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}
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static removeEventListener(type, handler) {
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if (!_appStateHandlers[handler]) {
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return;
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}
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_appStateHandlers[handler].remove();
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_appStateHandlers[handler] = null;
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}
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}
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AppStateIOS.currentState = null;
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RCTDeviceEventEmitter.addListener(
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DEVICE_APPSTATE_EVENT,
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(appStateData) => {
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AppStateIOS.currentState = appStateData.app_state;
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}
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);
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RCTAppState.getCurrentAppState(
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(appStateData) => {
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AppStateIOS.currentState = appStateData.app_state;
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},
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logError
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);
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module.exports = AppStateIOS;
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