我在查找Android版XML中形状定义的文档时遇到了一些问题。我想在XML文件中定义一个用纯色填充的简单圆圈,以将其包含在布局文件中。

遗憾的是,android.com上的文档没有涵盖Shape类的XML属性。我想我应该用ArcShape来画一个圆,但没有关于如何设置大小、颜色或角度的说明。


当前回答

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

    <!-- fill color -->
    <solid android:color="@color/white" />

    <!-- radius -->
    <stroke
        android:width="1dp"
        android:color="@color/white" />

    <!-- corners -->
    <corners
        android:radius="2dp"/>
</shape>

其他回答

简单圆代码

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval">
        <solid android:color="#9F2200"/>
        <stroke android:width="2dp" android:color="#fff" />
        <size android:width="80dp" android:height="80dp"/>
</shape>

res/drawable/circle_shape.xml

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

        <shape android:shape="oval">
            <solid android:color="#e42828"/>
            <stroke android:color="#3b91d7" android:width="5dp"/>
            <!-- Set the same value for both width and height to get a circular shape -->
            <size android:width="250dp" android:height="250dp"/>
        </shape>
    </item>
</selector>

只需使用

ShapeDrawable circle = new ShapeDrawable( new  OvalShape() );

尝试以下带破折号的代码:

<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval">
<size
    android:width="@dimen/_60sdp"
    android:height="@dimen/_60sdp" />

<solid android:color="@color/black" />

<stroke
    android:width="@dimen/_1sdp"
    android:color="@color/white"
    android:dashWidth="@dimen/_1sdp"
    android:dashGap="@dimen/_1sdp" />

尝试不带破折号的代码:

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

<size
    android:width="@dimen/_60sdp"
    android:height="@dimen/_60sdp" />

<solid android:color="@color/black" />

<stroke
    android:width="@dimen/_1sdp"
    android:color="@color/white" />
Without dash With dash

如果你想要这样的圆圈

尝试使用以下代码:

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:innerRadius="0dp"
    android:shape="ring"
    android:thicknessRatio="2"
    android:useLevel="false" >
    <solid android:color="@android:color/white" />
    <stroke
        android:width="1dp"
        android:color="@android:color/darker_gray" />
</shape>