android - ListView 的 DrawerLayout 背景

Question

我的 DrawerLayout 有以下内容:

<?xml version="1.0" encoding="utf-8"?>

<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/background_main">

    <!-- Framelayout to display Fragments -->
    <FrameLayout
        android:id="@+id/frame_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <!-- Listview to display slider menu -->
    <ListView
        android:id="@+id/list_slidermenu"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:background="@drawable/background"
        android:choiceMode="singleChoice"
        android:divider="@color/transparent"
        android:dividerHeight="0dp" />

</android.support.v4.widget.DrawerLayout>

我想为我的 ListView 设置一个背景图片，上面有一个不透明的黑色 View 。对于我的 iPhone 应用程序，这非常简单——我只需要一个 UIImageView，顶部有一个 UIView，它具有黑色背景和 .4 的不透明度，一切正常。

有没有办法在 Android 中执行此操作？此外，该图像将从服务器下载...因此我也需要满足该约束。

编辑

我按照下面的第一个答案尝试并得到以下错误:

Process: com.mounzaapp, PID: 17534
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mounzaapp/com.mounzaapp.views.dashboard.DashboardFragmentActivity}: java.lang.ClassCastException: android.widget.RelativeLayout$LayoutParams cannot be cast to android.support.v4.widget.DrawerLayout$LayoutParams
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2184)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)
        at android.app.ActivityThread.access$800(ActivityThread.java:135)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:136)
        at android.app.ActivityThread.main(ActivityThread.java:5001)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:515)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
        at dalvik.system.NativeStart.main(Native Method)
 Caused by: java.lang.ClassCastException: android.widget.RelativeLayout$LayoutParams cannot be cast to android.support.v4.widget.DrawerLayout$LayoutParams
        at android.support.v4.widget.DrawerLayout.isDrawerView(DrawerLayout.java:857)
        at android.support.v4.widget.DrawerLayout.closeDrawer(DrawerLayout.java:1058)
        at com.mounzaapp.views.dashboard.DashboardFragmentActivity.onItemClick(DashboardFragmentActivity.java:257)
        at com.mounzaapp.views.dashboard.DashboardFragmentActivity.onCreate(DashboardFragmentActivity.java:148)
        at android.app.Activity.performCreate(Activity.java:5231)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148)

我在执行以下操作时遇到错误:drawerLayout.closeDrawer(listLayout);。 listLayout 是包含 ListView 的 RelativeLayout。

编辑 2

事实证明，我所要做的就是从我的 Android 设备上删除该应用程序，然后重新构建。其他一切正常!

Answer 1

您只能将两个 subview 放在 DrawerLayout 中，但您可以将 ListView 放在 RelativeLayout 中。像这样:

<?xml version="1.0" encoding="utf-8"?>

<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/background_main">

    <!-- Framelayout to display Fragments -->
    <FrameLayout
        android:id="@+id/frame_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <!-- RelativeLayout to display slider menu -->
    <RelativeLayout
        android:id="@+id/drawer_container"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:background="@drawable/background" >

        <ListView
            android:id="@+id/list_slidermenu"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:background="@drawable/background"
            android:choiceMode="singleChoice"
            android:divider="@color/transparent"
            android:dividerHeight="0dp" />

        <!-- Whatever view you want inside the RelativeLayout -->

    </RelativeLayout>

</android.support.v4.widget.DrawerLayout>

**** 编辑 ****

Only two child view in DrawerLayout reference