ionic 2 FCM Notification icon (android) 如何設定

1.將1024 * 1024 png檔透過去背功能後，上傳至http://romannurik.github.io/AndroidAssetStudio/icons-notification.html
其中Trim whitespace請用Don’t trim
Padding用0%
Name用fcm_push_icon

下載檔案請解壓縮後放至[Project name]\platforms\android\res各相對應目錄

PS.目前還未找到如何在ionic專案先設定，故先於platforms\android路徑存放這些png檔

2.此項有做，但尚不確定是否需做~~先記錄
於config.xml加入(會產生至[Project Name]\platforms\android\res\xml\config.xml)

        <icon density="ldpi" src="resources/android/fcm_push_icon/drawable-ldpi-fcm_push_icon.png" />
        <icon density="mdpi" src="resources/android/fcm_push_icon/drawable-mdpi-fcm_push_icon.png" />
        <icon density="hdpi" src="resources/android/fcm_push_icon/drawable-hdpi-fcm_push_icon.png" />
        <icon density="xhdpi" src="resources/android/fcm_push_icon/drawable-xhdpi-fcm_push_icon.png" />
        <icon density="xxhdpi" src="resources/android/fcm_push_icon/drawable-xxhdpi-fcm_push_icon.png" />
        <icon density="xxxhdpi" src="resources/android/fcm_push_icon/drawable-xxxhdpi-fcm_push_icon.png" />

3.設定icon為fcm_push_icon即指項app內的resource，color則是設定icon之顏色

string deviceId = "/topics/marketing";
var data = new
{
        to = deviceId,
        notification = new
        {
              body = message,
              title = title,
              sound = "Enabled",
              icon = "fcm_push_icon",
              color = "#FF0000"
         }
};
var serializer = new JavaScriptSerializer();
var json = serializer.Serialize(data);
logger.Info("json: " + json);
Byte[] byteArray = Encoding.UTF8.GetBytes(json);
tRequest.ContentLength = byteArray.Length;