如何在桌面物品的图像按钮上设置波纹效果

Question

<TableRow
    android:id="@+id/tableRow1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_weight="0.5"
    android:gravity="center_horizontal"
    android:layout_gravity="center_horizontal"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    >

    <ImageButton
        android:id="@+id/ess_btn_leave"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_weight="0.5"
        android:adjustViewBounds="true"
        android:scaleType="fitCenter"
        android:src="@drawable/leave"
        android:background="?android:attr/selectableItemBackground"
        />

    <ImageButton
        android:id="@+id/ess_imgbtn_expence"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_weight="0.5"
        android:adjustViewBounds="true"
        android:scaleType="fitCenter"
        android:background="@null"
        android:src="@drawable/expence"
        />
</TableRow>

Answer 1

您可以在图像视图上使用Android:foreground=“？attr/selectableitembackground”。对于默认纹波

对于自定义ripple，您需要在drawable-v21中创建两个文件-background_ripple.xml

<ripple xmlns:android="http://schemas.android.com/apk/res/android"
android:exitFadeDuration="@android:integer/config_shortAnimTime"
android:color="@color/lightGrey" >

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

在您的普通绘图版本以上21

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true">
        <color android:color="@color/lightGrey" />
    </item>
    <item>
        <color android:color="@color/white" />
    </item>
</selector>