去除MVCHelper的getDataSource的强制转化

Author: zsy

mvchelper_library/src/main/java/com/shizhefei/mvc/MVCHelper.java

@@ -485,7 +485,7 @@ public IDataAdapter<DATA> getAdapter() {
     }
 
     public ISuperTask<DATA> getDataSource() {
-        return (IDataSource<DATA>) dataSource;
+        return dataSource;
     }
 
     public ILoadView getLoadView() {

mvchelper_library/src/main/java/com/shizhefei/mvc/ProgressSender.java

@@ -11,7 +11,7 @@ public interface ProgressSender {
      *
      * @param current  当前进度
      * @param total    总量
-     * @param exraData 额外的数据，可以传null
+     * @param extraData 额外的数据，可以传null
      */
-    void sendProgress(long current, long total, Object exraData);
+    void sendProgress(long current, long total, Object extraData);
 }