MessageBarManager.js

/**
 * Name: Message Bar Manager
 * Description: A manager to show/hide and handle a queue of alerts
 * https://github.com/KBLNY/react-native-message-bar
 */
"use strict";

module.exports = {
	_currentMessageBarAlert: null,
	_messageAlerts: new Array(),

	setCurrentMessageBarAlert(alert) {
		console.warn("This method is deprecated, please use registerMessageBar instead.");
		this.registerMessageBar(alert);
	},

	removeCurrentMessageBarAlert() {
		console.warn("This method is deprecated, please use registerMessageBar instead.");
		this.unregisterMessageBar();
	},

	registerMessageBar(messageBar) {
		this._currentMessageBarAlert = messageBar;
	},

	unregisterMessageBar() {
		this._currentMessageBarAlert = null;
	},


	showCurrentAlert(newState = null) {
		console.warn("This method is deprecated, please use showAlert instead.");
		this.showAlert(newState);
	},

	showAlert(newState = null) {
		if (this._currentMessageBarAlert === null) {
			return;
		}

		// Hide the current alert
		this.hideAlert();

		// Get the current alert's duration to hide
		var durationToHide = this._currentMessageBarAlert.state.durationToHide;

		setTimeout(() => {
			// Show the new alert if there is a new state, otherwise
			if (newState != null) {
				// Clear current state
				this._currentMessageBarAlert.setNewState({});

				this._currentMessageBarAlert.setNewState(newState);

				this._currentMessageBarAlert.notifyAlertHiddenCallback = null;

				setTimeout(() => {
					this._currentMessageBarAlert.showMessageBarAlert();
				}, 100);
			}
		}, durationToHide);
	},


	hideAlert() {
		if (this._currentMessageBarAlert !== null) {
			this._currentMessageBarAlert.hideMessageBarAlert();
		}
	},

	init() {
		this.showAlert({
      message: '',
      duration: 1,
      position: 'bottom',
      viewTopInset: 0,
      viewBottomInset: 0,
      durationToShow: 1,
      durationToHide: 1
    });
	}

};