Flutter Share API Plugin

Flutter Plugin for sharing contents to social media.

At this moment, this plugin is Android-only. Adding iOS compatibility is the highest priority on the development road map.

Introduction

This plugin is still in development. Specifications and APIs may change in the subsequent versions. Use this at your own risk.

Available Features

Platform	Android	iOS	Activity Return Value	Notes
System UI	✅	❌	❌	Text, Images, and Files
Facebook Story	✅	❌	✅	Images (Background and Sticker)
Instagram Story	✅	❌	❌	Images (Background and Sticker)

Configuration

Sharing Images and Files

In order to share files and/or images, you will need to add the following:

Android

In the android/app/src/main/AndroidManifest.xml, add the following in the manifest/application:

<!-- Add FileProvider in order to access the shared file -->
<provider
        android:name="android.support.v4.content.FileProvider"
        android:authorities="${applicationId}.com.albertalrisa.share_api"
        android:exported="false"
        android:grantUriPermissions="true">
    <meta-data
            android:name="android.support.FILE_PROVIDER_PATHS"
            android:resource="@xml/file_paths" />
</provider>

After adding the File Provider to the manifest, create a file named file_paths.xml in the app/src/main/res/xml folder:

<?xml version="1.0" encoding="utf-8"?>
<paths>
    <cache-path name="images" path="/"/>
</paths>

Usage

The module is accessed statically by calling ShareApi.via[module].[function]().

The following functions are available:

Module	Function
System UI	shareText()
	shareFile()
	shareImage()
Facebook	shareToStory()
Instagram	shareToStory()

Return Values

All share functions will return an integer representing the return value of the activity called. If the function does not support obtaining the operation result, ShareResult.undefined or 0x00 is given. Otherwise, the return value will be one of three possible values, which are ok, canceled, and failed. As of now, only Facebook responds with proper value, therefore running the other functions will always return undefined.

There are four possible values:

Value	Meaning
ShareResult.undefined (0x00)	The share function does not support return values
ShareResult.ok (0x01)	The share function has completed successfully, and the content has been shared
ShareResult.canceled (0x02)	The user canceled the share action and return back to the application
ShareResult.failed (0x03)	The share function failed to complete. Mostly due to exceptions and other errors

Development Road Map

• iOS Compatibility for System UI, Facebook Story, and Instagram Story
• Examples and Documentation Revamp

Contributing

Feel free to contribute by opening issues or submitting PRs through GitHub.