节点分类点击返回后混乱问题解决,issue 18

Author: veryyoung

app/build/apk/app-debug-unaligned.apk

@@ -164,8 +164,8 @@ public void setMainContent(Fragment fragment){
 
     public void addMainContent(Fragment fragment){
         getSupportFragmentManager().beginTransaction()
-                .replace(R.id.container, fragment)
-                //.addToBackStack(null)
+                .add(R.id.container, fragment)
+                .addToBackStack(null)
                 .commit();
     }