The code for the Push Plugin for NativeScript.
-
Create a new NativeScript application
tns create MyAppor use an existing one.
-
Add the Push Plugin (from NPM). This will install the push plugin in node_module, in the root of the project. When adding a new platform (or using an existing one) the plugin will be added there as well. Go to the application folder and add the push plugin:
tns plugin add nativescript-push-notifications
-
Go to the application folder and add the Android platform to the application
tns platform add android -
Add sample code in app/main-view-model.js in the function HelloWorldModel() like this one to subscribe and receive messages (Enter your google project number in the options of the register method):
var pushPlugin = require("nativescript-push-notifications");
var self = this;
pushPlugin.register({ senderID: '<ENTER_YOUR_PROJECT_NUMBER>' }, function (data){
self.set("message", "" + JSON.stringify(data));
}, function() { });
pushPlugin.onMessageReceived(function callback(data) {
self.set("message", "" + JSON.stringify(data));
});-
Attach your phone to the PC, ensure "adb devices" command lists it and run the app on the phone:
tns run android -
The access token is written in the console and in the message area, after subscribing (Look for ObtainTokenThread log record). When sending a notification, the message below the TAP button should be changed with the message received.
-
Edit the package.json file in the root of application, by changing the bundle identifier to match the one from your Push Certificate. For example: "id": "com.telerik.PushNotificationApp"
-
Go to the application folder and add the iOS platform to the application
tns platform add ios -
Add sample code in app/main-view-model.js in the function HelloWorldModel() like this one to subscribe and receive messages (Enter your google project id in the options of the register method):
var pushPlugin = require("nativescript-push-notifications");
var self = this;
var iosSettings = {
badge: true,
sound: true,
alert: true,
interactiveSettings: {
actions: [{
identifier: 'READ_IDENTIFIER',
title: 'Read',
activationMode: "foreground",
destructive: false,
authenticationRequired: true
}, {
identifier: 'CANCEL_IDENTIFIER',
title: 'Cancel',
activationMode: "foreground",
destructive: true,
authenticationRequired: true
}],
categories: [{
identifier: 'READ_CATEGORY',
actionsForDefaultContext: ['READ_IDENTIFIER', 'CANCEL_IDENTIFIER'],
actionsForMinimalContext: ['READ_IDENTIFIER', 'CANCEL_IDENTIFIER']
}]
},
notificationCallbackIOS: function (data) {
self.set("message", "" + JSON.stringify(data));
}
};
pushPlugin.register(iosSettings, function (data) {
self.set("message", "" + JSON.stringify(data));
// Register the interactive settings
if(iosSettings.interactiveSettings) {
pushPlugin.registerUserNotificationSettings(function() {
alert('Successfully registered for interactive push.');
}, function(err) {
alert('Error registering for interactive push: ' + JSON.stringify(err));
});
}
}, function() { });-
Run the code
tns run ios
-
Send notifications
// Get reference to the push plugin module.
var pushPlugin = require('nativescript-push-notifications');- register - use to subscribe device for push notifications
register(settings, successCallback, errorCallback)
var settings = {
// Android settings
senderID: '<ENTER_YOUR_PROJECT_NUMBER>', // Android: Required setting with the sender/project number
notificationCallbackAndroid: function(message, pushNotificationObject) { // Android: Callback to invoke when a new push is received.
alert(JSON.stringify(message));
},
// iOS settings
badge: true, // Enable setting badge through Push Notification
sound: true, // Enable playing a sound
alert: true, // Enable creating a alert
// Callback to invoke, when a push is received on iOS
notificationCallbackIOS: function(message) {
alert(JSON.stringify(message));
}
};
pushPlugin.register(settings,
// Success callback
function(token) {
// if we're on android device we have the onMessageReceived function to subscribe
// for push notifications
if(pushPlugin.onMessageReceived) {
pushPlugin.onMessageReceived(settings.notificationCallbackAndroid);
}
alert('Device registered successfully');
},
// Error Callback
function(error){
alert(error.message);
}
);- unregister - use to unsubscribe from Push Notifications
unregister(successCallback, errorCallback, settings)
pushPlugin.unregister(
// Success callback
function(){
alert('Device unregistered successfully');
},
// Error Callback
function(error){
alert(error.message);
},
// The settings from the registration phase
settings
);- Register for interactive push notifications (iOS >= 8.0) - in order to handle interacitve notifications, you have to pass additional settings while registering your device. The message object in the notificationCallbackIOS will contain a property with the value of the identifier.
register(settings, successCallback, errorCallback)
var settings = {
badge: true,
sound: true,
alert: true,
interactiveSettings: {
actions: [{
identifier: 'READ_IDENTIFIER',
title: 'Read',
activationMode: "foreground",
destructive: false,
authenticationRequired: true
}, {
identifier: 'CANCEL_IDENTIFIER',
title: 'Cancel',
activationMode: "foreground",
destructive: true,
authenticationRequired: true
}],
categories: [{
identifier: 'READ_CATEGORY',
actionsForDefaultContext: ['READ_IDENTIFIER', 'CANCEL_IDENTIFIER'],
actionsForMinimalContext: ['READ_IDENTIFIER', 'CANCEL_IDENTIFIER']
}]
},
notificationCallbackIOS: function(message) {
alert(JSON.stringify(message));
}
};
pushPlugin.register(settings,
// Success callback
function(token){
// if we're on android device we have the onMessageReceived function to subscribe
// for push notifications
if(pushPlugin.onMessageReceived) {
pushPlugin.onMessageReceived(settings.notificationCallbackAndroid);
}
// Register the interactive settings
if(settings.interactiveSettings) {
pushPlugin.registerUserNotificationSettings(function() {
alert('Successfully registered for interactive push.');
}, function(err) {
alert('Error registering for interactive push: ' + JSON.stringify(err));
});
}
},
// Error Callback
function(error){
alert(error.message);
}
);- areNotificationsEnabled - check if the notifications for the device are enabled. Returns true/false. Applicable only for iOS, for Android always returns true.
areNotificationsEnabled(callback)
pushPlugin.areNotificationsEnabled(function(areEnabled) {
alert('Are Notifications enabled: ' + areEnabled);
});- onTokenRefresh - Android only, subscribe for the token refresh event (Used to obtain the new token in cases where google revoke the old one)
onTokenRefresh(callback)
pushPlugin.onTokenRefresh(function(token){
alert(token);
});In case the application doesn't work as expected. Here are some things you can verify
- Ensure that the AndroindManifest.xml located at platforms\android contains the following snippets for registering the GCM listener:
<activity android:name="com.telerik.pushplugin.PushHandlerActivity"/>
<receiver
android:name="com.google.android.gms.gcm.GcmReceiver"
android:exported="true"
android:permission="com.google.android.c2dm.permission.SEND" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<category android:name="com.pushApp.gcm" />
</intent-filter>
</receiver>
<service
android:name="com.telerik.pushplugin.PushPlugin"
android:exported="false" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
</intent-filter>
</service>- Ensure that the AndroindManifest.xml located at platforms\android contains the following permissions for push notifications:
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />- Error "Error registering: no valid 'aps-environment' entitlement string found for application" - this means that the certificates are not correctly set in the xcodeproject. Open the xcodeproject, fix them and you can even run the application from xcode to verify it's setup correctly. The bundle identifier in xcode should be the same as the "id" in the package.json file in the root of the project.
In order to use the plugin with Telerik Backend Services take a look at the official sample: