Android 中按下 Tab 的状态是什么

Question

我试图让我的 tabicon 在按下选项卡时发生变化（即当您按下选项卡时它会改变颜色，但尚未释放）。我创建了一个选择器，如下所示：

<?xml version="1.0" encoding="UTF-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android"> 
    <!-- Non focused states --> 
    <item android:state_focused="false" 
          android:state_selected="false" 
          android:state_pressed="false" 
          android:drawable="@drawable/ic_tab_icon1" /> 
    <item android:state_focused="false" 
          android:state_selected="true" 
          android:state_pressed="false" 
          android:drawable="@drawable/ic_tab_icon2" /> 

    <!-- Focused states --> 
    <item android:state_focused="true" 
          android:state_selected="false" 
          android:state_pressed="false" 
          android:drawable="@drawable/ic_tab_icon3" /> 
    <item android:state_focused="true" 
          android:state_selected="true" 
          android:state_pressed="false" 
          android:drawable="@drawable/ic_tab_icon4" /> 

    <!-- Pressed --> 
    <item android:state_pressed="true" 
          android:drawable="@drawable/ic_tab_icon5" /> 
</selector> 

但是，由于某种原因，仅达到前两个状态（仅使用 icon1 和 icon 2）。谁能告诉我“按下但未选择”选项卡的正确状态是什么？

*编辑以澄清新情况

Answer 1

以下是 Android 2.2 中的 tab_indicator.xml：

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- Non focused states -->
    <item android:state_focused="false" android:state_selected="false" android:state_pressed="false" android:drawable="@drawable/tab_unselected" />
    <item android:state_focused="false" android:state_selected="true" android:state_pressed="false" android:drawable="@drawable/tab_selected" />

    <!-- Focused states -->
    <item android:state_focused="true" android:state_selected="false" android:state_pressed="false" android:drawable="@drawable/tab_focus" />
    <item android:state_focused="true" android:state_selected="true" android:state_pressed="false" android:drawable="@drawable/tab_focus" />

    <!-- Pressed -->
    <item android:state_pressed="true" android:drawable="@drawable/tab_press" />
</selector>

您没有任何 android:state_pressed="true" 的内容。尝试更改您的选择器，使其看起来更像 Android 使用的选择器。

Answer 2

这是 Android 的默认 tab_indicator.xml。从此 gitkernal。你必须维持所有这些状态。

<selector xmlns:android="http://schemas.android.com/apk/res/android"> 
    <!-- Non focused states --> 
    <item android:state_focused="false" android:state_selected="false" android:state_pressed="false" android:drawable="@drawable/ic_tab_north_normal" /> 
    <item android:state_focused="false" android:state_selected="true" android:state_pressed="false" android:drawable="@drawable/ic_tab_north_selected" /> 

    <!-- Focused states --> 
    <item android:state_focused="true" android:state_selected="false" android:state_pressed="false" android:drawable="@drawable/ic_tab_north_normal" /> 
    <item android:state_focused="true" android:state_selected="true" android:state_pressed="false" android:drawable="@drawable/ic_tab_north_selected" /> 

    <!-- Pressed --> 
    <item android:state_pressed="true" android:drawable="@drawable/ic_tab_north_normal" /> 
</selector>