리플 드로어 블에서 state_selected를 설정하는 방법

리플 드로어 블에서 state_selected를 설정하는 방법

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RippleDrawableandroid:state_selected 내부 를 지정하는 방법

리플 드로어 블에 대해 다음과 같은 xml이 있지만 설정할 때 배경색이 표시되지 않습니다. myView.setSelected(true);

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

    <item android:id="@android:id/mask">
        <shape>
            <solid
                android:color="@color/black" />
        </shape>
    </item>


    <item android:state_selected="true">
        <shape>
            <solid
                android:color="#EEEEEE" />
        </shape>
    </item>


    <item>
        <color android:color="#FFFFFF" />
    </item>

</ripple>

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다른 사람이 같은 문제를 겪을 경우를 대비하여 답을 찾았습니다.

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


    <item>
        <selector>
            <item android:state_selected="true">
                <color android:color="#EEEEEE" />
            </item>

            <item android:state_activated="true">
                <color android:color="#EEEEEE" />
            </item>

            <item>
                <color android:color="#FFFFFF" />
            </item>
        </selector>
    </item>


</ripple>

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@Sohaib의 답변에 추가하려면 :

@Alanv는 OP에 마스크가 필요하지 않았다는 것이 옳습니다. 그러나 선택기 상태 중 하나가 투명하고 마스크가 필요한 경우 여기에 표시됩니다.

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

    <!-- mask here... -->
    <item android:id="@android:id/mask">
        <color android:color="@color/black"/> <!-- any color will do -->
    </item>

    <item>
        <selector>
            <!-- ... NOT here. -->
            <item android:state_selected="true">
                <color android:color="@color/blue"/>
            </item>

            <item android:state_activated="true">
                <color android:color="@color/red"/>
            </item>

            <item>
                <color android:color="@color/transparent"/>
            </item>
        </selector>
    </item>
</ripple>

처음에는 선택기와 : boom 내부에 마스크가있었습니다.

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위의 답변을 다른 답변과 결합 :

Ripple, colorPrimary 또는 colorAccent의 색상은 무엇입니까? (소재 디자인)

항목이 선택된 상태에있을 때에도 작동하는 멋진 잔물결 효과를 제공합니다.

<ripple xmlns:android="http://schemas.android.com/apk/res/android"
    android:color="?attr/colorControlHighlight">
<!-- Ripple mask - applied to all selector states -->
<item android:id="@android:id/mask">
    <color android:color="#42ffffff" />
</item>
<!-- Selected state of item -->
<item>
    <selector>
        <item android:state_selected="true">
            <color android:color="?attr/colorAccent" />
        </item>
    </selector>
</item>
</ripple>

이것은 drawable-v21 폴더에 있으며 다른 플랫폼의 경우 강조 색상을 사용하는 선택기를 만들 수 있습니다.

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@color/accent" android:state_selected="true"/>
    <item android:drawable="@color/accent" android:state_pressed="true"/>
</selector>

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I wanted to mimic the behavior of the Material Design checkboxes but I couldn't get them right until I used a ColorStateList like this:

In drawable-v21/bg_checkbox_ripple.xml

<?xml version="1.0" encoding="utf-8"?>
<ripple
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:color="@color/checked_accent_statelist"
    android:radius="24dp">
</ripple>

In color/checked_accent_statelist.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:color="?colorControlHighlight" android:state_checked="false"/>
    <item android:color="?android:textColorHighlight" android:state_checked="true"/>
</selector>

The attribute "?android:textColorHighlight" is your accent color but with the right transparency for using it in ripples (I think it is 26%).

Also, you should provide a fallback for pre API 21 devices in drawable/bg_checkbox_ripple.xml

<?xml version="1.0" encoding="utf-8"?>
<selector
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:exitFadeDuration="@android:integer/config_shortAnimTime">
    <item>
        <shape android:innerRadius="24dp" android:shape="oval">
            <solid android:color="@color/checked_accent_statelist"/>
        </shape>
    </item>
</selector>

ReferenceURL : https://stackoverflow.com/questions/27496916/how-to-set-state-selected-in-ripple-drawable