no message

app/src/main/java/com/qhclh/ytzh/ui/RefreshLayout.java

@@ -161,7 +161,11 @@ public class RefreshLayout extends SwipeRefreshLayout implements
 	 * @return
 	 */
 	private boolean isPullUp() {
-		return (mYDown - mLastY) >= mTouchSlop;
+		if (mLastY<4){
+			return false;
+		}else {
+			return (mYDown - mLastY) >= mTouchSlop;
+		}
 	}
 
 	/**