DrawerLayout背景的ListView [英] DrawerLayout background for ListView

问题描述

我有以下我的 DrawerLayout ：

<?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>

我要为我的的ListView 背景图像与在它上面的黑色认为具有一定的透明度。对于我的iPhone应用程序，它很容易 - 我只是有一个的UIImageView 与的UIView 上，有一个黑色的背景前和.4，一切不透明的作品。

I want to have a background image for my ListView with a black view on top of it that has some opacity. For my iPhone app it's very easy--I just have a UIImageView with a UIView on top that has a black background and opacity of .4 and everything works.

有没有办法在Android中做到这一点？此外，该图像就会从服务器上下载...所以我需要适应的约束也是如此。

Is there a way to do this in Android? Also, this image will be downloaded from the server...so I need to fit that constraint as well.

修改

我试着按下面的第一个答案，并得到了以下错误：

I tried as per the first answer below and got the below error:

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)

我在做的时候得到的错误： drawerLayout.closeDrawer（listLayout）; 。 listLayout 是 RelativeLayout的包含的ListView 。

编辑2

原来我所要做的就是从我的Andr​​oid设备中删除应用程序，然后重建。一切工作！

Turns out all I had to do was delete the app from my android device and then rebuild. Everything else worked!

推荐答案

您只能把两个子视图的 DrawerLayout ，但你可以把<$ C $内C>的ListView 在 RelativeLayout的。像这样的：

You can only put two child views inside a DrawerLayout, but you can put the ListView inside a RelativeLayout. Like this:

<?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**

在DrawerLayout参考只有两个子视图

这篇关于DrawerLayout背景的ListView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！