片段还是更换了背景中可见 [英] Fragment replaced still visible on background

问题描述

我想替换一个片段，一个又一个新的使用抽屉式导航模式。它似乎工作，但是当我选择从抽屉另一个选择新的片段是加载，但两个片段是可见的。我使用的不是静态的片段布局，所以我不知道问题出在哪里。

I'm trying to replace one fragment with another one using new navigation drawer pattern. It seems to work but when I choose another option from drawer the new fragment is loaded but both fragments are visible. I'm not using static fragment layout so I don't know where is the problem.

片段通过 onItemClick 法实施 AdapterView.OnItemClickListener 在我的活动加载。

Fragments are loaded through onItemClick method implementing AdapterView.OnItemClickListener on my activity.

@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
    Fragment fragmentToShow = null;
    // Load desired fragment
    switch (position) {
        case 0: // Authors
            if (fragmentAuthors == null) fragmentAuthors = new FragmentAuthors();
            fragmentToShow = fragmentAuthors;
            break;
        case 1: // Books
            if (fragmentBooks == null) fragmentBooks = new FragmentBooks();
            fragmentToShow = fragmentBooks;
            break;
    }
    FragmentTransaction ft = fragmentManager.beginTransaction();
    ft.replace(R.id.ActivityMain_Drawer_FrameMain, fragmentToShow);
    ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
    ft.commit();
    mDrawerLayout.closeDrawers();
}

布局     

Layout

<!-- The main content view -->
<FrameLayout
    android:id="@+id/ActivityMain_Drawer_FrameMain"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/background_light" />

<!-- The navigation drawer -->
<FrameLayout
    android:id="@+id/ActivityMain_Drawer_FrameMenu"
    android:layout_width="240dp"
    android:layout_height="match_parent"
    android:layout_gravity="start"
    android:background="@android:color/background_light">
    <ListView
        android:id="@+id/ActivityMain_Drawer_FrameMenu_List"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:choiceMode="singleChoice"
        android:divider="@android:color/transparent"
        android:dividerHeight="0dp" />
</FrameLayout>

截图

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推荐答案

我有一些片段同样的问题。为了解决这个问题我简单的设置背景颜色，所有的分片布局，例如：

I have same issue with some fragments. To solve it I simple set background color for all fragment layouts, for example:

android:background="?android:attr/colorBackground"

这篇关于片段还是更换了背景中可见的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！