Fix notification large icon

app/src/main/java/com/hippo/ehviewer/download/DownloadService.java

@@ -21,7 +21,6 @@ import android.app.PendingIntent;
 import android.app.Service;
 import android.content.Context;
 import android.content.Intent;
-import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.os.IBinder;
 import android.support.annotation.Nullable;
@@ -71,8 +70,6 @@ public class DownloadService extends Service implements DownloadManager.Download
     private int mFinishedCount;
     private int mDownloadedCount;
 
-    private Bitmap mLargeIcon;
-
     public void init(SparseBooleanArray stateArray, SparseArray<String> titleArray,
             int failedCount, int finishedCount, int downloadedCount) {
         mItemStateArray = stateArray;
@@ -80,7 +77,6 @@ public class DownloadService extends Service implements DownloadManager.Download
         mFailedCount = failedCount;
         mFinishedCount = finishedCount;
         mDownloadedCount = downloadedCount;
-        mLargeIcon = BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher);
     }
 
     public void clear() {
@@ -93,7 +89,6 @@ public class DownloadService extends Service implements DownloadManager.Download
         if (mItemTitleArray != null) {
             mItemTitleArray.clear();
         }
-        mLargeIcon = null;
     }
 
     @Override
@@ -196,7 +191,7 @@ public class DownloadService extends Service implements DownloadManager.Download
         PendingIntent piClear = PendingIntent.getService(this, 0, clearIntent, 0);
         mDownloadedBuilder = new NotificationCompat.Builder(getApplicationContext())
                 .setSmallIcon(android.R.drawable.stat_sys_download_done)
-                .setLargeIcon(mLargeIcon)
+                .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher))
                 .setContentTitle(getString(R.string.stat_download_done_title))
                 .setDeleteIntent(piClear)
                 .setOngoing(false)
@@ -210,7 +205,7 @@ public class DownloadService extends Service implements DownloadManager.Download
 
         m509dBuilder = new NotificationCompat.Builder(getApplicationContext())
                 .setSmallIcon(R.drawable.ic_stat_alert)
-                .setLargeIcon(mLargeIcon)
+                .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher))
                 .setContentText(getString(R.string.stat_509_alert_title))
                 .setContentText(getString(R.string.stat_509_alert_text))
                 .setAutoCancel(true)