This plugin is useful for checking if native apps are installed on a user's iOS or Android device. By passing an app scheme (e.g., 'fb://', 'gplus://', 'instagram://', etc...), CanOpen returns true if it detects the user has the corresponding native app installed. By returning false, CanOpen allows the developer the ability to implement a fallback URL–for instance, the app's location in the App Store, or a mobile web version of the corresponding app. A blog post for this plugin can be found at http://philmerrell.com/canopen-a-phonegap-plugin-to-check-if-native-apps-are-installed-on-a-users-ios-device/
Copy the following files to your project's Plugins folder:
CanOpen.h
CanOpen.m
Add a reference for this plugin to config.xml in your iOS phonegap project:
<feature name="CanOpen">
<param name="ios-package" value="CanOpen" />
</feature>
Add the canOpen.js script to your www folder and reference it in your main index.html file.
<script type="text/javascript" charset="utf-8" src="canOpen.js"></script>
Working on registering CanOpen with plugman. Coming soon.
Alert a user that app is not installed.
CanOpen('fb://', function(isInstalled) {
if(isInstalled) {
document.location = 'fb://';
} else {
alert('Facebook is not installed');
}
});Or fallback to mobile web.
CanOpen('fb://', function(isInstalled) {
if(isInstalled) {
document.location = 'fb://';
} else {
document.location = 'http://m.facebook.com';
}
});Or fallback to app in the App Store.
CanOpen('fb://', function(isInstalled) {
if(isInstalled) {
document.location = 'fb://';
} else {
document.location = 'https://itunes.apple.com/us/app/facebook/id284882215';
}
});