抽屉布局列表查看透明背景

Question

I'm trying to set the background of the listview inside the drawer layout to be transparent like google's camera app.

What happens is whenever I set the background of the listview to be transparent its items disappears

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

<ListView
    android:id="@+id/activity_main_navigation_list"
    android:layout_width="240dp"
    android:layout_height="match_parent"
    android:layout_gravity="start"
    android:choiceMode="singleChoice"
    android:background="@android:color/transparent"
    android:divider="@android:color/transparent"
    android:dividerHeight="0dp" />

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

I tried to set it to a transparent image it didn't work either it doesn't work with any transparency added to the color of it's background.

This works:

        android:background="#232321"

This doesn't

        android:background="#fb232321"

Any idea how can I fix this problem

Answer 1

Try using android:background="@color/transparent" on DrawerLayout view and not on the listView. Also, you can use background transparent on childView of your ListView

Answer 2

So the I solved my problem by wrapping the listview with a Relativelayout it works with other layouts as well.

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

<FrameLayout
    android:id="@+id/activity_main_frame_container"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

<RelativeLayout
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_gravity="start"
    android:background="@android:color/transparent"
    android:focusableInTouchMode="true">

    <ListView
        android:id="@+id/activity_main_navigation_list"
        android:layout_width="240dp"
        android:layout_height="match_parent"
        android:choiceMode="singleChoice"
        android:clickable="true"
        android:divider="@android:color/transparent"
        android:dividerHeight="1dp"
        android:focusable="true" />
</RelativeLayout> 

Answer 3

使用＃00000000以获得黑色透明度