我开发的Andr​​oid电视的应用程序。我有一个列表视图与的ImageButton + 的TextView 译文]儿童。由于电视没有考虑触摸事件，但使用D-PAD或轨迹球遥控我得专注于所有的可点击的项目，以便用户知道在哪里的焦点。但问题是，我可以专注于列表行，如果我想补充

安卓descendantFocusability =blocksDescendants

在自定义列表列布局，但的ImageButton 列表行中不会得到焦点。 如果我删除上述code，那么的ImageButton 获得焦点，但我不能单击列表行。

此外，我添加setItemsCanFocus我的的ListView ，但没有运气，没有什么改变。 我看了很多文件，但我无法找到这个问题的一个正确的答案。我想关注这两个表行以及的ImageButton 。是否有可能，如果任何人知道，请帮我...

解决方案   

我得专注于所有的可点击的项目，以便用户知道在哪里的焦点。但问题是，我可以专注于列表行，如果我想补充

查看越来越挂断由于内部排文件的多个视图，以获得点击你要添加更多的属性，以行XML的主布局。

安卓descendantFocusability =blocksDescendants

  

但是，当我写上面的属性然后我不能集中精力的ImageButton这是在我行的文件。

我只是想一个办法获得了这幅以获得foucus 的ImageButton 以及对列表视图。

要获得ImageButton的焦点：的

创建一个选择文件。 在应用上的ImageButton。 新增机器人：focusableInTouchMode =真正的来的ImageButton

要重点关注列表视图：的

添加机器人：descendantFocusability =blocksDescendants 来行内XML主要布局

现在，当你点击你的ImageButton将重点与你的愿望颜色，甚至是将重点放在列表视图中点击了。

Selecotor.xml 的

 ＆LT; XML版本=1.0编码=UTF-8＆GT？;
＆LT;选择
    的xmlns：机器人=htt​​p://schemas.android.com/apk/res/android
    ＆GT;
    ＆LT;项目
        机器人：STATE_ pressed =真
        机器人：可绘制=@机器人：彩色/透明
        /＆GT; ＆LT;  - ！pressed  - ＆GT;
    ＆LT;项目
        机器人：state_focused =真
        机器人：可绘制=@机器人：彩色/ darker_gray
        /＆GT; ＆LT;！ - 集中 - ＆GT;
    ＆LT;项目
        机器人：可绘制=@机器人：可绘制/ btn_star
        /＆GT; ＆LT;！ - 默认 - ＆GT;
＆LT; /选择器＆GT;
 

经过测试，在S3模拟器，效果很好。

I am developing an app for android TV. I have a listview with an ImageButton + Textviews as children. As TV does not take touch events but uses D-PAD or trackball remote I have to get focus on all clickable items so that user knows where the focus is. But the problem is I can get focus on list row if I add

android:descendantFocusability="blocksDescendants"

in the custom list row layout but ImageButton in the list row will not get focus. And if I remove above code then ImageButton gets focus but I can't click list row.

Also I added setItemsCanFocus for my ListView but no luck, nothing changed. I read many documents but i could not find a proper answer for this problem. I want focus on both List row as well as ImageButton. Is it possible, if any one knows please help me...

解决方案

I have to get focus on all clickable items so that user knows where the focus is. But the problem is I can get focus on list row if I add

View getting hang up due to multiple views inside row file, to get click You have to add one more property to your main layout of row xml.

android:descendantFocusability="blocksDescendants

But when I write above property then I'm not able to focus ImageButton which is in my row file.

I just tried one way to acheive to get foucus on ImageButton as well as on listview.

To get focus on ImageButton:

Create one selector file. Applied on Imagebutton. Added android:focusableInTouchMode="true" to ImageButton.

To get focus on Listview:

Add android:descendantFocusability="blocksDescendants to main-layout within row xml.

Now when you click on your ImageButton it will focus with your desire color even it will focus on listview click too.

Selecotor.xml

<?xml version="1.0" encoding="utf-8"?>
<selector 
    xmlns:android="http://schemas.android.com/apk/res/android"
    >
    <item 
        android:state_pressed="true"
        android:drawable="@android:color/transparent" 
        /> <!-- pressed -->    
    <item 
        android:state_focused="true"
        android:drawable="@android:color/darker_gray" 
        /> <!-- focused -->    
    <item 
        android:drawable="@android:drawable/btn_star" 
        /> <!-- default -->
</selector>

Tested in S3 emulator, works well.