Push Notification on Cocos2D-X

Datetime:2016-08-23 04:31:34         Topic: Cocos2d-X          Share        Original >>
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Cocos2D-X Push Notification

Push Notification helps developer in sending event or alert to app users even when they are not logged into the app. App42 uses APNS (Apple Push Notification Service) and GCM (Google Cloud Messaging) to send Push Notification on IOS/Android devices. To configure Push Notification on Cocos2dx requires some plugin to be written and it is not straightforward, especially if you are new to Push Notification and plugin writing.

To overcome this issue and make this process easier, we have created a plugin that can be used in your project with minimal effort. To make it easy to understand, we have created a Sample Project . Here we will walk you through a step-by-step integration process by taking the examples of the sample we created.

Configuring your Cocos2D-X project for Push Notification

Configuring settings for Google project, seehere

Configuring settings for APNS, seehere

Copy App42PushHelper folder to the project folder parallel to classes folder

Let’s do some platform dependent settings:

1. Cocos2D-X Android Push Notification

1.1 Add Source Files

Open Android.mk file from your project and made the following changes in your Android.mk file

Add "../../App42PushHelper/App42PushHelper.cpp" // path in LOCAL_SRC_FILES.
Add "$(LOCAL_PATH)/../../App42PushHelper" // path in LOCAL_C_INCLUDES.

1.2 Enable Plugin

Add Plugin source classes and library files in your sample project:

Add plugin source from PushPlugin/Android folder to your src folder of Android project with same directory structure “app42/push/coco”

Copy .jar files from PushPlugin/Android/libs folder to your libs folder of projAndroid.

1.3 Manifest Setting

Open AndroidManifest.xml file & make the following changes, if you are customizing your own Android application.

1.3.1Add following permission in your AndroidManifest.xml file

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
	android:protectionLevel="signature" />
<uses-permission android:name="com.shephertz.sample.permission.C2D_MESSAGE" />
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />

1.3.2Add Receiver component in your Androidmanifest.xml file

	android:permission="com.google.android.c2dm.permission.SEND" >
		<action android:name="com.google.android.c2dm.intent.RECEIVE" />
		<action android:name="com.google.android.c2dm.intent.REGISTRATION" />
		<category android:name="com.shephertz.sample" />

1.3.3Declare Service in your AndroidManifest.xml file

<service android:name="app42.push.coco.App42GCMService" >

1.3.4Replace “com.shephertz.sample” with your application package name in AndroidManifest.xml file.

1.3.5Open App42PushHelper.cpp file from App42PushHelper folder & update the Google Project Id as follows:

#define GOOGLE_PROJECT_NUMBER "Your_Google_Project_Number" //Needed for android

2. Cocos2D-X iOS Push Notification

After following all the steps mention in thistutorial you can start building your cocos2d-x iOS project by following below steps:

Copy below mentioned files to folder proj.ios_mac->ios

-App42Bridge(.h & .mm) 
-AppController+App42PushExt(.h & .mm)

Open the project in xcode and add above files to the project under ios group.

Drag and drop App42PushHelper folder from your project folder to xcode project.

When you are done with above steps, your xcode project navigator should look like:

3. Using Plug-In:

3.1Include App42PushHelper.h to class where you want to use the plugin (In the sample we are using it in TestPushNotificationService class) as follows:

#include "App42PushHelper.h"

3.2Define two callback functions in the class one for getting the device token and other for getting push messages as follows:

 * Callback where you will get device token when device is registered successfully
void TestPushNotificationService::deviceDidRegisteredWithDeviceToken(const char* deviceToken)
    log("deviceToken = %s",deviceToken);

 * Callback where you will receive push messages
void TestPushNotificationService::didReceivePushNotification(const char* pushMsg)
    log("Message = %s",pushMsg);

3.3Set the callback function to receive your push messages already defined in step-2 as follows:

//Add this line in init function of the class you are working as we have added in the sample
App42PushHelper::setPushCallBack(CC_CALLBACK_1(TestPushNotificationService::didReceivePushNotification, this));

3.4Register your device to APNS/GCM as follows:

App42PushHelper::registerForPush(CC_CALLBACK_1(TestPushNotificationService::deviceDidRegisteredWithDeviceToken, this));

Here we are calling “registerForPush” function of App42PushHelper class. The callback function “deviceDidRegisteredWithDeviceToken” will be called by the plug-in once the device is registered successfully to APNS. You will be getting deviceToken in this function. The above statement can be called whenever you want to register your device for push, normally in the init method of the working class.

3.5Register your device to App42 Cloud:

When you get device token successfully in the callback “deviceDidRegisteredWithDeviceToken”, you can register your device to App42 Cloud as follows:

 * Callback where you will get device token when device is registered successfully
void TestPushNotificationService::deviceDidRegisteredWithDeviceToken(const char* deviceToken)
void TestPushNotificationService::registerDeviceToken(const char *deviceToken)
	PushNotificationService *pushService = App42API::BuildPushNotificationService();
	const char* userName = "Shephertz";
	DeviceType deviceType = APP42_IOS;
	pushService->RegisterDeviceToken(deviceToken, userName, deviceType, app42callback(TestPushNotificationService::onPushRequestCompleted, this));

4. Sending Message to User

Using API

Once your app is registered you are ready to send message to your app user using following code snippet from any App42 Cocos2D-X SDK.

const char* userName = "Nick";
	const char* message = "Message which you have to send";
	pushService->SendPushMessageToUser(userName,message,this, app42callfuncND_selector(Sample_Class::onPushRequestCompleted));

Using AppHQ Console

You can also send push messages to your registered app user directly from AppHQ console. To do this, go to AppHQ console Click on Push Notification -> Click on Users -> Select your App -> select your user from table and click on send push button. This will open a pop up to type your message, once you are done click on send button. This will trigger a push notification message to your app user.

5. Sending Message to Device with Sound and Badge

If you want to send push message with sound and badge effect on iOS device, you have to pass JSON string in below format.

const char* userName = "Nick";
	const char* message = "Message which you have to send";
	pushService->SendPushMessageToUser(userName,message,this, app42callfuncND_selector(Sample_Class::onPushRequestCompleted));

You can also do it from AppHQ by putting this JSON format in message text area for sending message to iOS device with sound and badge effect.

6. Sending Message to Channel

App42 Push notification also supports channel subscription model where user can subscribe on channel of his interest to receive the notification. You can send message to channel which will deliver message to all users who are subscribed to that channel. A channel can be created from AppHQ console. Go to Push Notification -> Click on Channels -> Select your App -> Click on add channel button Once channel is created you can ask user for subscription on the channel. Below is the code snippet for the same

Here is Cocos2D-X Code to send Push Notification to Channel.

const char* channel = "News Channel";
const char* description = "Channel all about the news";
//User must be registered with App42 for Push Notification
const char* userName = "Nick";
//Create Channel
pushService->CreateChannel(channel,description, this, app42callfuncND_selector(Sample_Class::onPushRequestCompleted));
//Subscribe user to that channel
pushService->SubscribeToChannel(channelName,userName, this, app42callfuncND_selector(Sample_Class::onPushRequestCompleted));    
// Now send message on the Channel
const char* message = "Message which you have to send";
pushService->SendPushMessageToChannel(channelName, message, this, app42callfuncND_selector(Sample_Class::onPushRequestCompleted));

7. User Segmentation (Applying Filter)

App42 Push Notification Service has introduced API to target users who have specific profile/preference. This API requires user preference or profile persistence in Storage Service as a prerequisite. To identify a specific user segmentation, your app user profile or preference information should be saved on App42 cloud e.g. if you are building a music streaming app and you want to send push notifications to all those users who like Rock music, you should have preference of user stored in App42 cloud already and it can be done using Storage Service as shown below.

Saving User Preference

//Set Logged in User Name 
const char* dbName = "<Your_DataBase_Name>";
const char* collectionName = "<Your_Collection_Name>";
string json = "{\"preference\":\"Rock\",\"age\":30,\"company\":\"ShepHertz\"}";
storageService->InsertJsonDocument(dbName, collectionName, jsonDoc, this, app42callfuncND_selector(Sample_Class::onStorageRequestCompleted));

Sending Push to Segmented User

Once your app user’s profile/preference information is saved, you can send Push Notification to the segmented user who meets specific criteria (Assuming your app user is already subscribed for push notification. For example, here you can send Push Notification to segmented users who likes Rock music as explained below.

const char* message= "Message which you have to send";
const char* key = "name";
const char* value = "Nick";
Query *query = QueryBuilder::BuildQuery(key, value, APP42_OP_EQUALS);
pushService->SendPushToTargetUsers(message.c_str(), dbName, collectionName, query, this, app42callfuncND_selector(Sample_Class::onPushRequestCompleted));

8. Scheduling Message to User

You can also schedule message to your app user on specified time from AppHQ console. To do this, Push Notification -> Click on Users -> Select your app -> select target users/device and click on schedule message button. Now type your message in pop up and pass your time to schedule the message.

9. Scheduling message to Channel

Message scheduling on channel can be done in similar way. Go to Push Notification -> Click on Channels -> Select your app -> select target channel and click on schedule message button . Now type your message in pop up and pass your time to schedule the message.

10. Send Multilingual Push Notification

Once your device is registered for Push Notification you are ready to send multilingual(UTF-8) push message to your app user using following code snippet from any App42 SDK (Android/Java/WP etc)

const char* userName = "Nick";
const char* message = "Message which you have to send";
map<string,string> otherMetaHeaders;
otherMetaHeaders["dataEncoding"] = "true";
pushService->SendPushMessageToUser(userName,message,this, app42callfuncND_selector(Sample_Class::onPushRequestCompleted));
void Sample_Class::onPushRequestCompleted(App42CallBack *sender, void *response)
	App42PushNotificationResponse *pushResponse = (App42PushNotificationResponse*)response;
	printf("\nResponse Body=%s",pushResponse->getBody().c_str());
	if (pushResponse->isSuccess)
		for(std::vector<App42PushNotification>::iterator it = pushResponse->notifications.begin(); it != pushResponse->notifications.end(); ++it)
			printf("\n UserName=%s",it->userName.c_str());
			printf("\n Message=%s\n",it->message.c_str());
			printf("\n Expiry=%s\n",it->expiry.c_str());

For more details of Push Notification Documentation


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