Android开发学习笔记：圆角的Button

shape.xml

<?xml version="1.0" encoding="UTF-8"?>
<shape
xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<!-- 填充的颜色 -->
<solid android:color="#FFFFFF" />
<!-- 设置按钮的四个角为弧形 -->
<!-- android:radius 弧形的半径 -->
<corners android:radius="5dip" />

<!-- padding：Button里面的文字与Button边界的间隔 -->
<padding
android:left="10dp"
android:top="10dp"
android:right="10dp"
android:bottom="10dp"
/>
</shape>

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<Button
android:id="@+id/roundButton"
android:text=" 圆角按钮 "
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/shape"
/>
</LinearLayout>

strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="hello">Hello World, RoundButtonDemoActivity!</string>
<string name="app_name">RoundButtonDemo</string>
</resources>