Add delete config

app/src/leanback/java/com/fongmi/android/tv/ui/custom/dialog/ConfigDialog.java

@@ -85,6 +85,7 @@ public class ConfigDialog implements DialogInterface.OnDismissListener {
     private void onPositive(View view) {
         String url = binding.text.getText().toString().trim();
         Config item = Config.find(Utils.checkClan(url), type);
+        if (url.isEmpty()) Config.delete(type);
         callback.setConfig(item);
         dialog.dismiss();
     }

app/src/main/java/com/fongmi/android/tv/bean/Config.java

@@ -107,6 +107,10 @@ public class Config {
         return items;
     }
 
+    public static void delete(int type) {
+        if (getAll(type).size() == 0) AppDatabase.get().getConfigDao().delete(type);
+    }
+
     public static Config vod() {
         Config item = AppDatabase.get().getConfigDao().findOne(0);
         return item == null ? create("", 0) : item;

app/src/main/java/com/fongmi/android/tv/db/dao/ConfigDao.java

@@ -24,4 +24,7 @@ public abstract class ConfigDao extends BaseDao<Config> {
 
     @Query("DELETE FROM Config WHERE url = :url")
     public abstract void delete(String url);
+
+    @Query("DELETE FROM Config WHERE type = :type")
+    public abstract void delete(int type);
 }