在材质组件库中，你可以使用MaterialShapeDrawable。

使用TextView:

    <TextView
        android:id="@+id/textview"
        ../>

你可以通过编程方式应用MaterialShapeDrawable:

float radius = getResources().getDimension(R.dimen.corner_radius);

TextView textView = findViewById(R.id.textview);
ShapeAppearanceModel shapeAppearanceModel = new ShapeAppearanceModel()
        .toBuilder()
        .setAllCorners(CornerFamily.ROUNDED,radius)
        .build();

MaterialShapeDrawable shapeDrawable = new MaterialShapeDrawable(shapeAppearanceModel);
ViewCompat.setBackground(textView,shapeDrawable);

如果你想改变背景颜色和边框，只需应用:

shapeDrawable.setFillColor(ContextCompat.getColorStateList(this,R.color.....));
shapeDrawable.setStroke(2.0f, ContextCompat.getColor(this,R.color....));

在drawable文件夹下创建一个XML gradient.xml文件

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle"  >
            <corners android:radius="50dip" />
            <stroke android:width="1dip" android:color="#667162" />
            <gradient android:angle="-90" android:startColor="#ffffff" android:endColor="#ffffff" />
        </shape>
    </item>
</selector>

然后将此添加到您的TextView

android:background="@drawable/gradient"

Create rounded_corner.xml in the drawable folder and add the following content, <?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" > <stroke android:width="1dp" android:color="@color/common_border_color" /> <solid android:color="#ffffff" /> <padding android:left="1dp" android:right="1dp" android:bottom="1dp" android:top="1dp" /> <corners android:radius="5dp" /> </shape> Set this drawable in the TextView background property like so: android:background="@drawable/rounded_corner"

我希望这对你有用。

除了半径，还有一些圆角属性，比如topRightRadius, topLeftRadius, bottomRightRadius, bottomLeftRadius

示例TextView与红色边界角和灰色背景

Bg_rounded.xml(在drawables文件夹中)

<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <stroke
        android:width="10dp"
        android:color="#f00" />

    <solid android:color="#aaa" />

    <corners
        android:radius="5dp"
        android:topRightRadius="100dp" />
</shape>

TextView

<TextView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/bg_rounded"
    android:text="Text"
    android:padding="20dp"
    android:layout_margin="10dp"
    />

结果

你可以使用SVG圆角和加载到一个ImageView和使用ConstraintLayout带来ImageView的TextView

我用它圆润ImageView和圆润TextView

简单地使用圆角图像作为该视图的背景

别忘了把你的自定义图像放在可绘制文件夹中

android:background="@drawable/my_custom_image"