选择绘制在上面 - 一个基本的线性布局？ [英] Draw selector on top - for a basic linear layout?

问题描述

我要选择点击状态，一个简单的布局，以利用其子女的顶部。我认为这是类似于ListView中的drawSelectorOnTop属性。举例布局：

I want a selector click state for a simple layout to draw on top of its children. I think this is similar to the "drawSelectorOnTop" attribute in ListView. Example layout:

<LinearLayout
  android:background="@drawable/my_click_selector">
    <LinearLayout
      android:background="#F00" />
</LinearLayout>

---------------
|             |
| ----------- |
| ----------- |
|             |
---------------

所以在这里我们有一个父线性布局，其中有一个坚实的背景颜色（红色）内的孩子。当我单击父，对资产的改变背景颜色如在我的选择定义，但由于子更接近在z顺序用户，它保持不变。

So here we have a parent linear layout, and an inner child which has a solid background color (red). When I click the parent, the background color of the asset changes as defined in my selector, but since the child is closer to the user in the z-order, it remains unchanged.

有没有什么办法可以有选择选择的状态画上的所有儿童，而不是在顶部？

Is there any way to have the selector selected-state drawn on top of all children instead of under?

感谢

推荐答案

我面对这个问题，我看着你的问题之前，在这里我做了什么，并完美地工作：

I face this problem and i looked to your question before , here what i did and worked perfectly :

您可以使用的FrameLayout 安卓前景属性做的工作适合你

You can use the FrameLayout android:foreground attribute to do the job for you

样品code

    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:clickable="true"
        android:descendantFocusability="afterDescendants"
        android:duplicateParentState="true"
        android:focusable="true"
        >

        <FrameLayout
            xmlns:android="http://schemas.android.com/apk/res/android"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:clickable="true"
            android:descendantFocusability="beforeDescendants"
            android:focusable="true"
            android:focusableInTouchMode="true"
            android:foreground="@drawable/draw_on_top_selector" >
              <RelativeLayout
        xmlns:android="http://schemas.android.com/apk/res/android"

        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#282828"
        android:paddingBottom="5dp" >



        <ImageView

            android:layout_width="160dp"
            android:layout_height="90dp"
            android:layout_alignParentLeft="true"
            android:layout_alignParentRight="true"
            android:layout_gravity="center_vertical|center_horizontal"
            android:adjustViewBounds="true"
            android:contentDescription="@string/app_name"
            android:scaleType="centerCrop"
            android:src="@drawable/video_blank" />

        <TextView

            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@id/episodeImage"
            android:layout_alignLeft="@id/episodeImage"
            android:background="@android:color/black"
            android:gravity="right"
            android:padding="2dp"
            android:textColor="#FFFFFF"
            android:textSize="11sp" />

  </RelativeLayout>

</FrameLayout>
</LinearLayout>

draw_on_top_selector.xml

draw_on_top_selector.xml

<selector xmlns:android="http://schemas.android.com/apk/res/android">


    <item android:drawable="@drawable/show_cell_background_selected" android:state_pressed="true"/>
    <item android:drawable="@drawable/show_cell_background"/>

</selector>

show_cell_background_selected.xml

show_cell_background_selected.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >

    <item>
        <shape android:shape="rectangle" >
            <stroke
                android:width="4dp"
                android:color="#FFD900" >
            </stroke>

            <solid android:color="@android:color/transparent" />
        </shape>
    </item>

</layer-list>

show_cell_background.xml

show_cell_background.xml

<?xml version="1.0" encoding="UTF-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >

    <item>
        <shape android:shape="rectangle" >
            <stroke
                android:width="2dp"
                android:color="#20000000" >
            </stroke>

            <solid android:color="@android:color/transparent" />
        </shape>
    </item>

</layer-list>

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