안드로이드 스튜디오 PUSH 받기

Project > app > build.gradle (파일)

dependencies 에 compile 'com.google.android.gms:play-services:8.1.0' 추가


ex.

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.1.1'
    compile 'com.google.android.gms:play-services:8.1.0'
}

Project > app > src > main > AndroidManifest.xml (파일)

코드보기로 전환한 다음 다음 항목들을 추가
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<permission android:name="com.example.gcm.permission.C2D_MESSAGE" android:protectionLevel="signature" />
<uses-permission android:name="com.example.gcm.permission.C2D_MESSAGE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />

<service android:name=".PushNotificationService" android:exported="false">
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
</intent-filter>
</service>

<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="패키지명" />
</intent-filter>
</receiver>

패키지명 모르겠다면
Project > app > src > main > java > MainActivity.java (파일) 맨 첫번째줄 package 다음에 써진 단어들...
ex.

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="패키지명">
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
    <permission android:name="com.example.gcm.permission.C2D_MESSAGE"
        android:protectionLevel="signature" />
    <uses-permission android:name="com.example.gcm.permission.C2D_MESSAGE" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <service
            android:name=".PushNotificationService"
            android:exported="false">
            <intent-filter>
                <action android:name="com.google.android.c2dm.intent.RECEIVE" />
            </intent-filter>
        </service>
        <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="패키지명" />
            </intent-filter>
        </receiver>
    </application>
</manifest>

Project > app > src > main > java (우클릭 후 파일 생성)

파일명 : GCMClientManager.java

아래코드 추가

package 패키지명;

import android.app.Activity;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.AsyncTask;
import android.util.Log;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.gcm.GoogleCloudMessaging;
import com.google.android.gms.iid.InstanceID;
import java.io.IOException;

public class GCMClientManager {
    public static final String TAG = "GCMClientManager";
    public static final String EXTRA_MESSAGE = "message";
    public static final String PROPERTY_REG_ID = "프로젝트아이디번호";
    private static final String PROPERTY_APP_VERSION = "1.0";
    private final static int PLAY_SERVICES_RESOLUTION_REQUEST = 9000;
    private GoogleCloudMessaging gcm;
    private String regid;
    private String projectNumber;
    private Activity activity;
    public GCMClientManager(Activity activity, String projectNumber) {
        this.activity = activity;
        this.projectNumber = projectNumber;
        this.gcm = GoogleCloudMessaging.getInstance(activity);
    }
    private static int getAppVersion(Context context) {
        try {
            PackageInfo packageInfo = context.getPackageManager()
                    .getPackageInfo(context.getPackageName(), 0);
            return packageInfo.versionCode;
        } catch (NameNotFoundException e) {
            throw new RuntimeException("Could not get package name: " + e);
        }
    }
    public void registerIfNeeded(final RegistrationCompletedHandler handler) {
        if (checkPlayServices()) {
            regid = getRegistrationId(getContext());
            if (regid.isEmpty()) {
                registerInBackground(handler);
            } else {
                Log.i(TAG, regid);
                handler.onSuccess(regid, false);
            }
        } else {
            Log.i(TAG, "No valid Google Play Services APK found.");
        }
    }
    private void registerInBackground(final RegistrationCompletedHandler handler) {
        new AsyncTask<Void, Void, String>() {
            @Override
            protected String doInBackground(Void... params) {
                try {
                    if (gcm == null) {
                        gcm = GoogleCloudMessaging.getInstance(getContext());
                    }
                    InstanceID instanceID = InstanceID.getInstance(getContext());
                    regid = instanceID.getToken(projectNumber, GoogleCloudMessaging.INSTANCE_ID_SCOPE, null);
                    Log.i(TAG, regid);
                    storeRegistrationId(getContext(), regid);
                } catch (IOException ex) {
                    handler.onFailure("Error :" + ex.getMessage());
                }
                return regid;
            }
            @Override
            protected void onPostExecute(String regId) {
                if (regId != null) {
                    handler.onSuccess(regId, true);
                }
            }
        }.execute(null, null, null);
    }

    private String getRegistrationId(Context context) {
        final SharedPreferences prefs = getGCMPreferences(context);
        String registrationId = prefs.getString(PROPERTY_REG_ID, "");
        if (registrationId.isEmpty()) {
            Log.i(TAG, "Registration not found.");
            return "";
        }
        int registeredVersion = prefs.getInt(PROPERTY_APP_VERSION, Integer.MIN_VALUE);
        int currentVersion = getAppVersion(context);
        if (registeredVersion != currentVersion) {
            Log.i(TAG, "App version changed.");
            return "";
        }
        return registrationId;
    }

    private void storeRegistrationId(Context context, String regId) {
        final SharedPreferences prefs = getGCMPreferences(context);
        int appVersion = getAppVersion(context);
        Log.i(TAG, "Saving regId on app version " + appVersion);
        SharedPreferences.Editor editor = prefs.edit();
        editor.putString(PROPERTY_REG_ID, regId);
        editor.putInt(PROPERTY_APP_VERSION, appVersion);
        editor.commit();
    }

    private SharedPreferences getGCMPreferences(Context context) {
        return getContext().getSharedPreferences(context.getPackageName(),
                Context.MODE_PRIVATE);
    }

    private boolean checkPlayServices() {
        int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getContext());
        if (resultCode != ConnectionResult.SUCCESS) {
            if (GooglePlayServicesUtil.isUserRecoverableError(resultCode)) {
                GooglePlayServicesUtil.getErrorDialog(resultCode, getActivity(),
                        PLAY_SERVICES_RESOLUTION_REQUEST).show();
            } else {
                Log.i(TAG, "This device is not supported.");
            }
            return false;
        }
        return true;
    }

    private Context getContext() {
        return activity;
    }

    private Activity getActivity() {
        return activity;
    }

    public static abstract class RegistrationCompletedHandler {
        public abstract void onSuccess(String registrationId, boolean isNewRegistration);
        public void onFailure(String ex) {
            Log.e(TAG, ex);
        }
    }
}

Project > app > src > main > java (우클릭 후 파일 생성)

파일명 : PushNotificationService.java
아래코드 추가

package 패키지명;

import android.os.Bundle;
import com.google.android.gms.gcm.GcmListenerService;

public class PushNotificationService extends GcmListenerService {
    @Override
    public void onMessageReceived(String from, Bundle data) {
        String message = data.getString("message");
        //createNotification(mTitle, push_msg);
    }
}

Project > app > src > main > java > MainActivity.java (파일)

package 패키지명;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.telephony.TelephonyManager;
import android.util.Log;

import java.util.HashMap;

public class MainActivity extends AppCompatActivity {

    String PROJECT_NUMBER="프로젝트아이디번호";
    String phoneNum = null;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // 휴대폰번호 알아내기
        try{
            TelephonyManager telManager = (TelephonyManager)getSystemService(this.TELEPHONY_SERVICE);
            phoneNum = telManager.getLine1Number();
        }catch(Exception e){
        }

        // XML파일 화면에 보여주기
        setContentView(R.layout.activity_main);

        GCMClientManager pushClientManager = new GCMClientManager(this, PROJECT_NUMBER);
        pushClientManager.registerIfNeeded(new GCMClientManager.RegistrationCompletedHandler() {
            @Override
            public void onSuccess(String registrationId, boolean isNewRegistration) {
                Log.d("Registration id", registrationId);

                if(phoneNum==null){phoneNum="";}

                // 담아서 쓰던 전송해서 쓰던...
                HashMap<Object , Object> param = new HashMap<Object , Object>();

                if(phoneNum!="") {
                    param.put("regid", registrationId);
                    param.put("phone", phoneNum);
                }

                String postData = "HPN="+phoneNum+"&RegId="+registrationId;

            }

            @Override
            public void onFailure(String ex) {
                super.onFailure(ex);
            }
        });

    }
}