package net.raharu.localnotifyplugin;
 
import java.util.Calendar;
 
import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
 
import com.unity3d.player.UnityPlayer;
 
public class localNotification {
 
    /**
     * 時間指定でローカル通知を投げる
     * @param message
     * @param unixtime
     * @param primary_key
     */
    public void sendNotification(String message, long unixtime, int primary_key) 
    {
        Log.i("Unity", "SendNotificationStart");
 
        // インテント作成
        Activity activity = UnityPlayer.currentActivity;
        Context context = activity.getApplicationContext();
        Intent intent = new Intent(context, NotificationReceiver.class);
        //渡す値
        intent.putExtra("MESSAGE", message);
        intent.putExtra("PRIMARY_KEY", primary_key);
 
        //10秒後にアラーム(デバック用)
        Calendar calendar = Calendar.getInstance();
        calendar.setTimeInMillis(System.currentTimeMillis());
        calendar.add(Calendar.SECOND, 10);
 
        PendingIntent sender = PendingIntent.getBroadcast(context,  primary_key, intent, PendingIntent.FLAG_UPDATE_CURRENT); 
        AlarmManager alarm = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
        alarm.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis() , sender);
    }
}

package net.raharu.localnotifyplugin;
 
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.support.v4.app.NotificationCompat;
 
/**
 * レシーバー
 * 
 * @author raharu
 */
public class NotificationReceiver extends BroadcastReceiver{
 
    @Override
    public void onReceive(Context context, Intent intent) {
 
        //値の取得
        String message = intent.getStringExtra("MESSAGE");
        Integer primary_key = intent.getIntExtra("PRIMARY_KEY", 0);
 
        // intentからPendingIntentを作成
        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT);
 
        // LargeIcon の Bitmap を生成
        final PackageManager pm = context.getPackageManager();
        ApplicationInfo applicationInfo = null;
        try {
          applicationInfo = pm.getApplicationInfo(context.getPackageName(),PackageManager.GET_META_DATA);
        } catch (NameNotFoundException e) {
          e.printStackTrace();
          return;
        }
        final int appIconResId = applicationInfo.icon;
        Bitmap largeIcon = BitmapFactory.decodeResource(context.getResources(), appIconResId);
 
        // NotificationBuilderを作成
        NotificationCompat.Builder builder = new NotificationCompat.Builder(context);
        builder.setContentIntent(pendingIntent);
        builder.setTicker("通知がとどきました");  //ステータスバーに届くテキスト
        builder.setSmallIcon(appIconResId);           //アイコン
        builder.setContentTitle("タイトルだよ！！");       // タイトル
        builder.setContentText(message);              // 本文（サブタイトル）
        builder.setLargeIcon(largeIcon);              //開いた時のアイコン
        builder.setWhen(System.currentTimeMillis());  //通知に表示される時間(※通知時間ではない！)
 
        // 通知時の音・バイブ・ライト
        builder.setDefaults(Notification.DEFAULT_ALL);
        builder.setAutoCancel(true);
 
        // NotificationManagerを取得
        NotificationManager manager = (NotificationManager) context.getSystemService(Service.NOTIFICATION_SERVICE);
        // Notificationを作成して通知
        manager.notify(primary_key, builder.build());
    }
 
}

<?xml version="1.0" encoding="utf-8"?>
<manifest
    xmlns:android="http://schemas.android.com/apk/res/android"
    package="XXXXXXXXXXXX"
    android:installLocation="preferExternal"
    android:theme="@android:style/Theme.NoTitleBar"
    android:versionCode="1"
    android:versionName="1.0">
    <supports-screens
        android:smallScreens="true"
        android:normalScreens="true"
        android:largeScreens="true"
        android:xlargeScreens="true"
        android:anyDensity="true"/>
 
    <application
        android:icon="@drawable/app_icon"
        android:label="@string/app_name"
        android:debuggable="true">
        <activity android:name="com.unity3d.player.UnityPlayerNativeActivity"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
            <meta-data android:name="unityplayer.UnityActivity" android:value="true" />
            <meta-data android:name="unityplayer.ForwardNativeEventsToDalvik" android:value="true" />
        </activity>
        <meta-data
    android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" />
        #ここに通知されるレシーバーを登録する（パッケージ名+クラス名）
        <receiver android:name="net.raharu.localnotifyplugin.NotificationReceiver" android:process=":remote" />
    </application>
    <uses-sdk android:minSdkVersion="9" android:targetSdkVersion="20" />
    <uses-feature android:glEsVersion="0x00020000" />
 
    <uses-permission android:name="android.permission.INTERNET" />
     #バイブレートの権限追加
    <uses-permission android:name="android.permission.VIBRATE" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
</manifest>

    #if UNITY_ANDROID
        AndroidJavaObject m_plugin = new AndroidJavaObject( "net.raharu.localnotifyplugin.localNotification");
        if (m_plugin != null){
            m_plugin.Call("sendNotification", "本文だよ！！！！", [unixtime], [unique_id]);
        }
    #endif