在android布局中创建水平虚线 [英] Create a Horizontal dotted line in android layout
问题描述
在我的布局中,我试图绘制虚线.为绘制水平线,我在布局文件中定义了一个视图.
in my layout I am trying to draw a DOTTED LINE.for drawing a horizontal line i am defining a view in my layout file.
<View
android:layout_width="fill_parent"
android:layout_height="1dip"
android:background="@drawable/customdots" />
和customdots.xml
and customdots.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:left="10dp"
android:right="10dp"
android:width="4dp"
android:drawable="@drawable/dotted" />
</layer-list>
dotted.xml
dotted.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="line" >
<size
android:height="4dp"
android:width="1024dp"/>
<stroke
android:width="4dp"
android:dashWidth="4dp"
android:color="@android:color/black"
android:dashGap="5dp"/>
</shape>
但是我没有使用此代码的任何行.请帮帮我.
But i don't get any line using this code. please help me out.
当我在listView Divider中使用customdots.xml作为
When i use customdots.xml in the listView Divider as
android:divider="@drawable/customdots"
它显示了一条很好的虚线
it shows a good dotted line
推荐答案
我也一直在解决这个问题,直到我发现渲染这样的行时发现最新版本的Android中存在错误.
I was pulling my hair on this issue too until I figured out there is a bug in the latest versions of Android when rendering lines like this.
可以通过将 android:layerType ="software" 添加到使用虚线作为背景的视图中来规避此错误.
This bug can be circumvented by adding android:layerType="software" to the view which is using the dotted line as a background.
示例:
dotted.xml:
dotted.xml:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="line">
<stroke
android:dashGap="3dp"
android:dashWidth="8dp"
android:height="2px"
android:color="#FFFFFF" />
</shape>
layout.xml:
layout.xml:
<View
android:id="@+id/vDottedLine"
android:background="@drawable/dotted"
android:layout_width="match_parent"
android:layout_height="2px"
android:layerType="software" />
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