有一个简单的方法来添加边框的一款Android观的顶部和底部? [英] Is there an easy way to add a border to the top and bottom of an Android View?
问题描述
我有一个TextView,我想添加一个黑色的边框沿其顶部和底部边框。我尝试添加安卓drawableTop
和安卓drawableBottom
的TextView的,但是这不仅造成整个视图变黑
I have a TextView and I'd like to add a black border along its top and bottom borders. I tried adding android:drawableTop
and android:drawableBottom
to the TextView, but that only caused the entire view to become black.
<TextView
android:background="@android:color/green"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:drawableTop="@android:color/black"
android:drawableBottom="@android:color/black"
android:text="la la la" />
有没有一种方法可以轻松地在Android中增加一个顶部和底部边框视图(尤其是一个TextView)?
Is there a way to easily add a top and bottom border to a View (in particular, a TextView) in Android?
推荐答案
在Android 2.2的,你可以做到以下几点。
In android 2.2 you could do the following.
创建一个XML绘制如/res/drawable/textlines.xml并指定这是一个TextView的背景属性。
Create an xml drawable such as /res/drawable/textlines.xml and assign this as a TextView's background property.
<TextView
android:text="My text with lines above and below"
android:background="@drawable/textlines"
/>
/res/drawable/textlines.xml
/res/drawable/textlines.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<shape
android:shape="rectangle">
<stroke android:width="1dp" android:color="#FF000000" />
<solid android:color="#FFDDDDDD" />
</shape>
</item>
<item android:top="1dp" android:bottom="1dp">
<shape
android:shape="rectangle">
<stroke android:width="1dp" android:color="#FFDDDDDD" />
<solid android:color="#00000000" />
</shape>
</item>
</layer-list>
向下一面是,你必须指定一个不透明的背景颜色,透明胶片将无法正常工作。 (至少我认为他们没有,但我错了)。在上面的例子中,你可以看到,第一个形状#FFdddddd的纯色被复制到第二个形状描边颜色。
The down side to this is that you have to specify an opaque background colour, as transparencies won't work. (At least i thought they did but i was mistaken). In the above example you can see that the solid colour of the first shape #FFdddddd is copied in the 2nd shapes stroke colour.
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