首先简单了解一下shape中常见的属性。(详细介绍参看 api文档 )
转载请注明:Rflyee_大飞: http://blog.youkuaiyun.com/rflyee/article/details/20785495
<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape=["rectangle" | "oval" | "line" | "ring"] > --- 默认为rectangle <corners -- shape=“rectangle”时使用, android:radius="integer" -- 半径,会被下边的属性覆盖,默认为1dp, android:topLeftRadius="integer" android:topRightRadius="integer" android:bottomLeftRadius="integer" android:bottomRightRadius="integer" /> <gradient -- 渐变 android:angle="integer" android:centerX="integer" android:centerY="integer" android:centerColor="integer" android:endColor="color" android:gradientRadius="integer" android:startColor="color" android:type=["linear" | "radial" | "sweep"] android:useLevel=["true" | "false"] /> <padding android:left="integer" android:top="integer" android:right="integer" android:bottom="integer" /> <size -- 指定大小,一般用在imageview配合scaleType属性使用。大小一般会适配滴 android:width="integer" android:height="integer" /> <solid -- 填充颜色,可是是十六进制颜色。(比如想设置半透明效果,直接使用十六就只就OK) android:color="color" /> <stroke -- 指定边框,border,dashWidth和dashGap有一个为0dp则为 android:width="integer" android:color="color" android:dashWidth="integer" -- 虚线宽度 android:dashGap="integer" /> -- 虚线间隔宽度 </shape>
1、 android:radius,半 径,会被下边的单个角度半径属性覆盖,默认为1dp,
2、在使用时,如果单独设置四个角度,又大小不一致时,eclipse的graphics preview会报错。但是直接真机运行即可。(比如实线上边直角,下边屈角的效果)
Note: The shape scales to the size of the container View proportionate to the dimensions defined here, by default. When you use the shape in an ImageView
, you can restrict scaling by setting the android:scaleType
to "center"
res/drawable/gradient_box.xml
:
<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle"> <gradient android:startColor="#FFFF0000" android:endColor="#80FF00FF" android:angle="45"/> <padding android:left="7dp" android:top="7dp" android:right="7dp" android:bottom="7dp" /> <corners android:radius="8dp" /> </shape>

2、白色边框、半透明效果
<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" > <corners android:radius="16dp" /> <!-- 这是半透明,还可以设置全透明,那就是白色边框的效果了 --> <solid android:color="#80065e8d" /> <stroke android:dashGap="0dp" android:width="4dp" android:color="@android:color/white" /> </shape>


<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="line" > <stroke android:width="4dp" android:color="@android:color/black" /> </shape>

<?xml version="1.0" encoding="utf-8"?> <shape android:shape="rectangle" xmlns:android="http://schemas.android.com/apk/res/android"> <corners android:topLeftRadius="5dp" android:topRightRadius="5dp" android:bottomLeftRadius="30dp" android:bottomRightRadius="30dp"/> <!-- 这是半透明,还可以设置全透明,那就是白色边框的效果了 --> <solid android:color="#ff065e8d" /> <stroke android:dashGap="0dp" android:width="4dp" android:color="@android:color/white" /> </shape>如图:

另:附上一份颜色进制图,需要的可以查阅: http://blog.sina.com.cn/s/blog_684a1d160100umuq.html
转载请注明:Rflyee_大飞: http://blog.youkuaiyun.com/rflyee/article/details/20785495