什么是＆QUOT; state_focused＆QUOT;状态的按钮？ [英] What is the "state_focused" state for a Button?

问题描述

我想一个按钮背景保持一定的颜色按钮被点击后，再次改变颜色时，其他一些按钮pssed $ P $。我认为这是state_focused状态。

但只有两种状态我似乎对我的按钮是pressed与否pressed。

我理解的正确的state_focused状态，或者是我的StateListDrawable（见下文），错了吗？

 ＆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;项目安卓state_focused =真正的机器人：STATE_ pressed =假＆GT;＆LT;形状＆GT;
            [固体机器人：颜色=＃00FF00/＆GT;
        ＆LT; /形状＆GT;＆LT; /项目＆GT;
    ＆LT;项目的android：STATE_ pressed =真正的＆GT;＆LT;形状＆GT;
            [固体机器人：颜色=＃FF0000/＆GT;
        ＆LT; /形状＆GT;＆LT; /项目＆GT;
    ＆LT;项目＆GT;＆LT;形状＆GT;
            [固体机器人：颜色=＃0000FF/＆GT;
        ＆LT; /形状＆GT;＆LT; /项目＆GT;

＆LT; /选择器＆GT;
 

解决方案

state_focused 是每当按钮的重点是使用DPAD或轨迹球。采用触摸意见时，通常不会显示出聚焦状态。

I would like a Button background to remain a certain color after the button is clicked, and change colors again when some other button is pressed. I thought this was the "state_focused" state.

But the only two states I seem to have for my Button is pressed or not pressed.

Do I understand the state_focused state correctly, or is my StateListDrawable (see below) wrong?

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

    <item android:state_focused="true" android:state_pressed="false"><shape>
            <solid android:color="#00ff00" />
        </shape></item>
    <item android:state_pressed="true"><shape>
            <solid android:color="#ff0000" />
        </shape></item>
    <item><shape>
            <solid android:color="#0000ff" />
        </shape></item>

</selector>

解决方案

state_focused is whenever the button is focused on using a dpad or the trackball. Views don't generally show a focused state when using touch.

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