android,自定义state_pressed不起作用

Question

我的自定义选择器如下所示不能正常工作,我根本看不到按下状态.有提示吗？谢谢

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

    >
    <!-- this state button has special design:
        + enabled state has white text on green background
        + disabled state has grey text on greyer background
    -->


    <item android:state_enabled="true"
        android:drawable="@drawable/cb_shape_button_primary"
        android:color="@color/white"

        />
    <item android:state_pressed="true"
        android:drawable="@drawable/cb_shape_button_pressed"
        android:color="@color/white"

        />

    <item android:state_focused="true"
        android:drawable="@drawable/cb_shape_button_pressed"
        android:color="@color/white"

        />
    <item android:state_enabled="false"
        android:drawable="@drawable/cb_shape_button_flat"
        android:color="@color/grey_subtext"
        />

</selector>

Answer 1

尝试将state_pressed移动到顶部,如下所示:

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

>
<!-- this state button has special design:
    + enabled state has white text on green background
    + disabled state has grey text on greyer background
-->

<item android:state_pressed="true"
    android:drawable="@drawable/cb_shape_button_pressed"
    android:color="@color/white"

    />

<item android:state_enabled="true"
    android:drawable="@drawable/cb_shape_button_primary"
    android:color="@color/white"

    />

<item android:state_focused="true"
    android:drawable="@drawable/cb_shape_button_pressed"
    android:color="@color/white"

    />
<item android:state_enabled="false"
    android:drawable="@drawable/cb_shape_button_flat"
    android:color="@color/grey_subtext"
    />