react-native-message-bar

A message bar notification component displayed at the top of the screen for React Native (Android and iOS) projects.

Content

• Features
• Installation
• Basic Usage
• Hide the Message Bar Alert
• Customize Alert Type
• Customize Alert Content
• Customize View Layout
• Properties
• TODOS
• Apps using this library
• License

Features

• Android and iOS capable
• Animated alert with Title, Message and Icon
• Auto-hide after x seconds (customizable)
• Support hide on tap
• 4 pre-configured customizable styles + 1 extra
• Customizable styles and animation
• Callbacks on alert show, hide and tap
• Orientation supported
• Children component support Show/Hide alert

Installation

Make sure that you are in your React Native project directory and run:

$ npm install react-native-message-bar --save

Basic Usage

• 1. Import the react-native-message-bar package

var MessageBarAlert = require('react-native-message-bar').MessageBar;
var MessageBarManager = require('react-native-message-bar').MessageBarManager;

• 2. Add the MessageBarAlert to your render method

// Within your render function.
// Include the MessageBar once within your top View element
// Make sure you add the MessageBar at the very bottom of your master component, then it will be displayed over all other components
<MessageBarAlert ref="alert" />

• 3. Register and Release your Message Bar as the current main alert

componentDidMount() {
  // Register the alert located on this master page
  // This MessageBar will be accessible from the current (same) component, and from its child component
  // The MessageBar is then declared only once, in your main component.
  MessageBarManager.registerMessageBar(this.refs.alert);
}

componentWillUnmount() {
  // Remove the alert located on this master page from the manager
  MessageBarManager.unregisterMessageBar();
}

• 4. Display the Message Bar Alert on demand

// Call this method after registering your MessageBar as the current alert
// By calling this method the registered alert will be displayed
// This is useful to show the alert from your current page or a child component
MessageBarManager.showCurrentAlert({
  title: 'Your alert title here',
  message: 'Your alert message here',
  alertType: 'success',
  // See Properties section for full customization
  // Or check `index.ios.js` or `index.android.js` for a complete example
});

Please note, if you do not provide a alertType, the info one will be chosen for you.

The normal duration of the notification is 3 seconds (3000 ms), you can override it. After this time, the notification is going to be hidden

See a full Example in index.ios.js or index.android.js.

Hide the Message Bar Alert

// You can force the current alert to be hidden through the Manager
MessageBarManager.hideAlert();

Customize Alert Type

The Message Bar Alert comes with 4 pre-configured alert style and 1 undefined extra. These alert styles defined the background color of the alert and the line stroke color. The 4 pre-configured alert styles are:

• info defined blue colors
• success defined green colors
• warning defined orange colors
• error defined red colors

The extra alert type allows you to use another 5th type.

MessageBarManager.showCurrentAlert({
  ...

  alertType: 'info', // Alert Type: you can select one of 'success', 'error', 'warning', 'error', or 'custom' (use custom if you use a 5th stylesheet, all are customizable). Default is 'info'

  /* Customize the stylesheets and/or provide an additional one 'extra' */
  stylesheetInfo : {{ backgroundColor : '#007bff', strokeColor : '#006acd' }}, // Default are blue colors
  stylesheetSuccess : {{ backgroundColor : 'darkgreen', strokeColor : '#b40000' }}, // Default are Green colors
  stylesheetWarning : {{ backgroundColor : '#ff9c00', strokeColor : '#f29400' }}, // Default are orange colors
  stylesheetError : {{ backgroundColor : '#ff3232', strokeColor : '#FF0000' }}, // Default are red colors
  stylesheetExtra : {{ backgroundColor : 'black', strokeColor : 'gray' }}, // Default are blue colors, same as info

  ...
});

Customize Alert Content

You can customize the style of the Title, Message and Icon/Avatar.

MessageBarManager.showCurrentAlert({
  ...

  title: "John Doe", // Title of the alert
  message: "Hello, any suggestions?", // Message of the alert
  avatarUrl: "<URL of your icon/avatar>", // Avatar/Icon URL of the alert

  /* Number of Lines for Title and Message */
  titleNumberOfLines: 1,
  messageNumberOfLines: 0, // Unlimited number of lines

  /* Style for the text elements and the  */
  titleStyle: {{ color: 'white', fontSize: 18, fontWeight: 'bold' }},
  messageStyle: {{ color: 'white', fontSize: 16 }},
  avatarStyle: {{ height: 40, width: 40, borderRadius: 20 }},

  ...
});

Customize View Layout

You can customize the inset (padding) and the offset of the alert.

MessageBarManager.showCurrentAlert({
  ...

  /* Offset of the View, useful if you have a navigation bar or if you want the alert be shown below another component instead of the top of the screen */
  viewTopOffset : 0, // Default is 0
  viewLeftOffset : 0, // Default is 0
  viewRightOffset : 0, // Default is 0

  /* Inset of the view, useful if you want to apply a padding at your alert content */
  viewTopInset : 15, // Default is 0
  viewLeftInset : 0, // Default is 0
  viewRightInset : 0, // Default is 0

  ...
});

Properties

Prop	Type	Default	Description
title	String		Title of the alert
message	String		Message of the alert
avatarUrl	String		Avatar/Icon URL of the alert
alertType	String	info	Alert Type: you can select one of 'success', 'error', 'warning', 'error', or 'custom' (use custom if you use a 5th stylesheet, all are customizable).
duration	Number	3000	Number of ms the alert is displayed
shouldHideAfterDelay	Bool	true	Tell the MessageBar whether or not it should hide after a delay defined in the duration property. If false, the MessageBar remain shown
shouldHideOnTap	Bool	true	Tell the MessageBar whether or not it should hide or not when the user tap the alert. If false, the MessageBar will not hide, but the onTapped function is triggered, if defined. In addition, if false, the onHide function will not be triggered. The property shouldHideAfterDelay take precedence over shouldHideOnTap. That means if shouldHideAfterDelay is false, the value of shouldHideOnTap is not taken into account, since the MessageBar will not ever be hidden
onTapped	Function		Callback function after alert is tapped
onShow	Function		Callback function after alert is shown
onHide	Function		Callback function after alert is hidden
stylesheetInfo	Object	{ backgroundColor: '#007bff', strokeColor: '#006acd' }	Background color and line stroke colors of the alert when alertType is equals to info
stylesheetSuccess	Object	{ backgroundColor: 'darkgreen', strokeColor: '#b40000' }	Background color and line stroke colors of the alert when alertType is equals to success
stylesheetWarning	Object	{ backgroundColor: '#ff9c00', strokeColor: '#f29400' }	Background color and line stroke colors of the alert when alertType is equals to warning
stylesheetError	Object	{ backgroundColor: '#ff3232', strokeColor: '#FF0000' }	Background color and line stroke colors of the alert when alertType is equals to error
stylesheetExtra	Object	{ backgroundColor: '#007bff', strokeColor: '#006acd' }	Background color and line stroke colors of the alert when alertType is equals to extra
durationToShow	Number	350	Duration of the animation to completely show the alert
durationToHide	Number	350	Duration of the animation to completely hide the alert
viewTopOffset	Number	0	Offset of the view from the top. That means the alert touch the top edge of the screen
viewLeftOffset	Number	0	Offset of the view from the left. That means the alert touch the left edge of the screen
viewRightOffset	Number	0	Offset of the view from the right. That means the alert touch the right edge of the screen
viewTopInset	Number	0	Padding Top of the view
viewLeftInset	Number	0	Padding Left of the view
viewRightInset	Number	0	Padding Right of the view
titleNumberOfLines	Number	1	Number of lines of the title. 0 means unlimited
messageNumberOfLines	Number	2	Number of lines of the message. 0 means unlimited
avatarStyle	Style	{ height: 40, width: 40, borderRadius: 20, alignSelf: 'center' }	Style of the icon/avatar
titleStyle	Style	{ color: 'white', fontSize: 18, fontWeight: 'bold' }	Style of the title
messageStyle	Style	{ color: 'white', fontSize: 16 }	Style of the message

TODOS

• Add Alert Queuing System
• Add Bottom Position
• Add Slide Animations (Slide from Top, Bottom, Left, Right)
• Add pre-configured Animations (Fade-in, Elastic, etc.)
• Add customizable Animation (inject your configuration)
• Anything that can help to improve :) Thanks for contributions

Apps using this library

• Your App here...

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License

React-Native-Message-Bar is released under MIT License. See LICENSE for details.

Copyright © 2016 KBLNY.

Please provide attribution, it is greatly appreciated.