45

我想为一个线性布局创建一个边框。所以我决定创建一个形状。我希望边框有渐变。以下不做。它填充矩形，然后创建一个笔触。我不想要一个填充的矩形，只是中风。我想将渐变应用于笔画。

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

    <gradient
        android:angle="360"
        android:centerColor="#e95a22"
        android:endColor="#ff00b5"
        android:gradientRadius="360"
        android:startColor="#006386"
        android:type="sweep" />

    <stroke
        android:width="2dp"
        android:color="#ff207d94" />

</shape>
4

5 回答 5

50

尝试这样的事情：

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

    <item>
        <shape android:shape="rectangle" >
            <gradient
                android:angle="360"
                android:centerColor="#e95a22"
                android:endColor="#ff00b5"
                android:gradientRadius="360"
                android:startColor="#006386"
                android:type="sweep" />

            <stroke
                android:width="2dp"
                android:color="#ff207d94" />
        </shape>
    </item>
    <item
        android:bottom="2dp"
        android:left="2dp"
        android:right="2dp"
        android:top="2dp">
        <shape android:shape="rectangle" >
            <solid android:color="#fff" />
        </shape>
    </item>

</layer-list>
于 2014-01-01T16:59:48.590 回答
37

由于接受的答案并没有完全按照我希望它为我工作，我也会发布我的解决方案，也许它可以帮助其他人:)

<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >

<item>
<!-- create gradient you want to use with the angle you want to use -->
    <shape android:shape="rectangle" >
        <gradient
            android:angle="0"
            android:centerColor="@android:color/holo_blue_bright"
            android:endColor="@android:color/holo_red_light"
            android:startColor="@android:color/holo_green_light" />

    </shape>
</item>
<!-- create the stroke for top, left, bottom and right with the dp you want -->
<item
    android:bottom="2dp"
    android:left="2dp"
    android:right="2dp"
    android:top="2dp">
    <shape android:shape="rectangle" >
        <!-- fill the inside in the color you want (could also be a gradient again if you want to, just change solid to gradient and enter angle, start, maybe center, and end color) -->
        <solid android:color="#fff" />
    </shape>
</item>

</layer-list>
于 2017-11-17T09:47:24.187 回答
4

这将创建一个顶部边框为 2dp 的布局。只需将其设置为布局的背景

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle">
            <gradient
                android:startColor="#4fc949"
                android:centerColor="#0c87c5"
                android:endColor="#b4ec51"
                android:angle="180" />
        </shape>
    </item>
    <item android:top="2dp">
        <shape android:shape="rectangle">
            <solid android:color="@color/background_color"/>
        </shape>
    </item>
</layer-list>
于 2016-05-31T14:34:13.017 回答
2

这将是您想要做的适当的解决方案。它包括描边渐变和填充颜色渐变。

<?xml version="1.0" encoding="utf-8"?>
    <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
        <item>
            <shape >
                <gradient
                    android:startColor="#2196F3"
                    android:endColor="#673AB7"
                    android:angle="270" />
                <stroke
                    android:width="0dp"
                    android:color="@color/transparentColor" />
                <corners
                    android:radius="8dp" />
                <padding
                    android:left="2dp"
                    android:right="2dp"
                    android:top="2dp"
                    android:bottom="2dp" />
            </shape>
        </item>
        <item>
            <shape android:shape="rectangle">

            </shape>
        </item>
        <item android:top="0dp">
            <shape>
                <gradient
                    android:startColor="#FBB100"
                    android:endColor="#FF9900"
                    android:angle="270"/>

                <corners
                    android:radius="8dp" />
            </shape>
        </item>
    </layer-list>
于 2019-08-13T08:05:29.523 回答
1

这个额外的来源应该可以解决您的问题

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle">
            <gradient
                android:angle="360"
                android:centerColor="#e95a22"
                android:endColor="#ff00b5"
                android:gradientRadius="360"
                android:startColor="#006386"
                android:type="sweep" />
            <size android:height="170dp"
                android:width="170dp"/>
        </shape>
    </item>
    <item android:top="2dp" android:bottom="2dp" android:right="2dp" android:left="2dp">
        <shape android:shape="rectangle">
            <size android:width="140dp"
                android:height="140dp"/>
            <solid android:color="@color/colorAccent"/>
            <solid android:color="@color/white"/>
        </shape>
    </item>
</layer-list>
于 2018-12-16T18:30:42.173 回答