片段视图不可见

Question

我试图显示SearchResultBaseFragment（类名）片段，有时它不可见但片段代码在后台运行，如何找出错误，log cat什么都没显示......

RewriteEngine On

RewriteCond %{HTTP_HOST} !^example.com$ 
RewriteRule ^ http://example.com%{REQUEST_URI} [NE,L,R=301] 

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [L]    

FragmentManager  fragmentManager = getSupportFragmentManager();
                FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
 Fragment currentFragment = new SearchResultBaseFragment();
                fragmentTransaction
                        .add(R.id.frame_container, currentFragment)
                        .setCustomAnimations(R.anim.frg_slide_for_in,
                                R.anim.frg_slide_for_out,
                                R.anim.frg_slide_back_in,
                                R.anim.frg_slide_back_out)
                        .setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN)
                        .addToBackStack(null);
               fragmentTransaction.commitAllowingStateLoss();

片段类

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/mainLayout"
    android:background="@color/white"
    >
    <FrameLayout
        android:id="@+id/frame_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
         >
    </FrameLayout>
    <include
        android:id="@+id/actionBarRootLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        layout="@layout/actionbar_layout"
        android:layout_alignParentBottom="true" />
</RelativeLayout>