Use AndroidX

app/src/main/java/com/hippo/ehviewer/EhDB.java

@@ -20,10 +20,9 @@ import android.content.Context;
 import android.database.Cursor;
 import android.database.sqlite.SQLiteDatabase;
 import android.database.sqlite.SQLiteOpenHelper;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
 import android.util.Log;
-
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import com.hippo.ehviewer.client.data.GalleryInfo;
 import com.hippo.ehviewer.client.data.ListUrlBuilder;
 import com.hippo.ehviewer.dao.DaoMaster;
@@ -49,7 +48,7 @@ import com.hippo.yorozuya.FileUtils;
 import com.hippo.yorozuya.IOUtils;
 import com.hippo.yorozuya.ObjectUtils;
 import com.hippo.yorozuya.collect.SparseJLArray;
-
+import de.greenrobot.dao.query.LazyList;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
@@ -59,8 +58,6 @@ import java.io.OutputStream;
 import java.util.ArrayList;
 import java.util.List;
 
-import de.greenrobot.dao.query.LazyList;
-
 public class EhDB {
 
     private static final String TAG = EhDB.class.getSimpleName();