通过在drawble下定义xml实现圆角边
没事随便写写！需要用到圆角矩形边框，通过在drawble文件定义shape.xml实现；
不多说，直接上代码：
shape_round_corner.xml
//定义四个圆角<shape xmlns:android="/apk/res/android"><solid android:color="#ff00" /><corners android:topLeftRadius="12dp"android:topRightRadius="12dp"android:bottomRightRadius="12dp"android:bottomLeftRadius="12dp"/><stroke android:width="1dp" android:color="#ff0" /></shape><!--定义上半圆角，如果定义下面，方式一样，去掉topLeftRadius/topRightRadius,加上bottomRightRadius/bottomLeftRadius即可；--><shape xmlns:android="/apk/res/android"><solid android:color="#ff00" /><corners android:topLeftRadius="12dp"android:topRightRadius="12dp"/><stroke android:width="1dp" android:color="#ff0" /></shape>
activity_main.xml
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><LinearLayout android:layout_width="300dp"android:layout_height="300dp"android:layout_marginBottom="10dp"android:layout_marginLeft="10dp"android:layout_marginRight="10dp"android:layout_marginTop="10dp"android:alpha="0.8"android:background="@drawable/shape_round_corner"></LinearLayout></LinearLayout>
MainActivity.java
public class MainActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);}}
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