blocks|key|421874|text|您也可以将视图包装在FrameLayout中，然后设置框架的背景颜色和填充到您想要的位置；但是，文本视图在默认情况下具有“透明”背景，因此您也需要更改文本视图的背景颜色。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|421875|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

You can also wrap the view in a FrameLayout, then set the frame's background color and padding to what you want; however, the textview, by default has a 'transparent' background, so you'd need to change the textview's background color too.

blocks|key|1721227|text|在Android2.2中，您可以执行以下操作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1721228|创建一个xml可绘制文件，如/res/+drawable+/textlines.xml，并将其指定为TextView的背景属性。|1721229|<TextView
android:text="My+text+with+lines+above+and+below"
android:background="@drawable/textlines"
/>|code-block|syntax|javascript|1721230|/res/drawable/textlines.xml|1721231|<?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>|1721232|这样做的缺点是你必须指定一个不透明的背景颜色，因为透明效果不起作用。(至少我认为他们是这样做的，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的笔划颜色中。|1721233|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

In android 2.2 you could do the following. 

Create an xml drawable such as /res/drawable/textlines.xml and assign this as a TextView's background property. 

<pre><code>&lt;TextView
android:text="My text with lines above and below"
android:background="@drawable/textlines"
/&gt;
</code></pre>

/res/drawable/textlines.xml

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;layer-list xmlns:android="http://schemas.android.com/apk/res/android" &gt;
 &lt;item&gt;
 &lt;shape 
 android:shape="rectangle"&gt;
 &lt;stroke android:width="1dp" android:color="#FF000000" /&gt;
 &lt;solid android:color="#FFDDDDDD" /&gt;

 &lt;/shape&gt;
 &lt;/item&gt;

 &lt;item android:top="1dp" android:bottom="1dp"&gt; 
 &lt;shape 
 android:shape="rectangle"&gt;
 &lt;stroke android:width="1dp" android:color="#FFDDDDDD" /&gt;
 &lt;solid android:color="#00000000" /&gt;
 &lt;/shape&gt;
 &lt;/item&gt;

&lt;/layer-list&gt;
</code></pre>

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.

blocks|key|422452|text|尝试使用线性布局包装图像，并将其背景设置为您想要的文本周围的边框颜色。然后将文本视图上的填充设置为您想要的边框粗细。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|422453|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Try wrapping the image with a linearlayout, and set it's background to the border color you want around the text. Then set the padding on the textview to be the thickness you want for your border.

blocks|key|311885|text|首先创建一个内容如下所示的xml文件，并将其命名为border.xml，然后将其放入res目录内的布局文件夹中|type|unstyled|depth|inlineStyleRanges|entityRanges|data|311886|<?xml+version="1.0"+encoding="UTF-8"?>
<shape+xmlns:android="http://schemas.android.com/apk/res/android">
++++<stroke+android:width="1dp"+android:color="#0000"+/>
++++<padding+android:left="0dp"+android:top="1dp"+android:right="0dp"
++++++++android:bottom="1dp"+/>
</shape>|code-block|syntax|javascript|311887|在此之后，内部代码使用|311888|TextView+tv+=+(TextView)findElementById(R.id.yourTextView);
tv.setBackgroundResource(R.layout.border);|311889|这将在TextView的顶部和底部生成一条黑线。|311890|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

First make a xml file with contents shown below and name it border.xml and place it inside the layout folder inside the res directory

<pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
&lt;shape xmlns:android="http://schemas.android.com/apk/res/android"&gt;
 &lt;stroke android:width="1dp" android:color="#0000" /&gt;
 &lt;padding android:left="0dp" android:top="1dp" android:right="0dp"
 android:bottom="1dp" /&gt;
&lt;/shape&gt;
</code></pre>

After that inside the code use

<pre><code>TextView tv = (TextView)findElementById(R.id.yourTextView);
tv.setBackgroundResource(R.layout.border);
</code></pre>

This will make a black line on top and bottom of the TextView.

blocks|key|1718650|text|您也可以使用9路径来完成您的工作。创建它，以便彩色像素不会增加高度，而只增加透明像素。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1718651|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

You can also use a 9-path to do your job. Create it so that colored pixel do not multiply in height but only the transparent pixel.

blocks|key|1723011|text|我使用了一个技巧，使边框显示在容器外部。使用此技巧时，只绘制了一条线，因此将显示底层视图的背景。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1723012|<?xml+version="1.0"+encoding="utf-8"?>
<layer-list+xmlns:android="http://schemas.android.com/apk/res/android"+>
++++<item
++++++++android:bottom="1dp"
++++++++android:left="-2dp"
++++++++android:right="-2dp"
++++++++android:top="-2dp">
++++++++<shape+android:shape="rectangle"+>
++++++++++++<stroke
++++++++++++++++android:width="1dp"
++++++++++++++++android:color="#FF000000"+/>

++++++++++++<solid+android:color="#00FFFFFF"+/>

++++++++++++<padding+android:left="10dp"
++++++++++++++++android:right="10dp"
++++++++++++++++android:top="10dp"
++++++++++++++++android:bottom="10dp"+/>
++++++++</shape>
++++</item>

</layer-list>|code-block|syntax|javascript|1723013|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I've used a trick so that the border is displayed outside the container. With this trick only a line is drawn so the background will be shown of the underlying view.

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;layer-list xmlns:android="http://schemas.android.com/apk/res/android" &gt;
 &lt;item
 android:bottom="1dp"
 android:left="-2dp"
 android:right="-2dp"
 android:top="-2dp"&gt;
 &lt;shape android:shape="rectangle" &gt;
 &lt;stroke
 android:width="1dp"
 android:color="#FF000000" /&gt;

 &lt;solid android:color="#00FFFFFF" /&gt;

 &lt;padding android:left="10dp"
 android:right="10dp"
 android:top="10dp"
 android:bottom="10dp" /&gt;
 &lt;/shape&gt;
 &lt;/item&gt;

&lt;/layer-list&gt;
</code></pre>

blocks|key|312029|text|选项1:可绘制的形状|type|unstyled|depth|inlineStyleRanges|entityRanges|data|312030|如果想要在布局或视图周围设置边框，这是最简单的选项。在drawable文件夹中创建一个XML文件，如下所示：|offset|length|style|CODE|312031|<?xml+version="1.0"+encoding="utf-8"?>
<shape+xmlns:android="http://schemas.android.com/apk/res/android"
++++android:shape="rectangle"+>

++++<solid+android:color="#8fff93"+/>

++++<stroke
++++++++android:width="1px"
++++++++android:color="#000"+/>

</shape>|code-block|syntax|javascript|312032|如果不需要填充，可以删除solid。布局/视图上的设置background="@drawable/your_shape_drawable"。|312033|选项2:背景视图|312034|这是我在RelativeLayout中使用的一个小技巧。基本上，你在视图下面有一个黑色的方块，你想给它一个边框，然后给这个视图一些填充(而不是边距！)所以黑色的正方形在边缘显示出来。|312035|显然，只有当视图没有任何透明区域时，这才能正常工作。如果是这样，我建议你写一个自定义的BorderView，它只绘制边框--它应该只有几十行代码。|312036|<View
++++android:id="@%2Bid/border"
++++android:layout_width="wrap_content"
++++android:layout_height="wrap_content"
++++android:layout_alignBottom="@%2Bid/image"
++++android:layout_alignLeft="@%2Bid/image"
++++android:layout_alignRight="@%2Bid/image"
++++android:layout_alignTop="@%2Bid/main_image"
++++android:background="#000"+/>

<ImageView
++++android:id="@%2Bid/image"
++++android:layout_width="wrap_content"
++++android:layout_height="wrap_content"
++++android:layout_...
++++android:padding="1px"
++++android:src="@drawable/..."+/>|312037|如果你想知道，它确实可以在adjustViewBounds=true上工作。但是，如果您想要在整个RelativeLayout中有一个背景，那么它就不起作用了，因为有一个bug会阻止您用View填充RelativeLayout。在这种情况下，我推荐使用Shape+drawable。|312038|选项3:+9-补丁|312039|最后一种选择是使用9补丁可绘制，如下图所示：|312040|​|312041|📷|atomic|312042|312043|您可以在任何可以设置android:background="@drawable/..."的视图上使用它。是的，它确实需要6x6+-我尝试了5x5，但它不起作用。|312044|这种方法的缺点是你不能很容易地改变颜色，但如果你想要花哨的边框(例如，在这个问题中只在顶部和底部有一个边框)，那么你可能不能使用Shape可绘制，这是不是很强大。|312045|选项4:额外的视图|312046|如果你只想要视图上下的边框，我忘了提一下这个非常简单的选项。你可以把你的视图放在一个垂直的LinearLayout中(如果它还没有)，然后在它上面和下面添加空的View，如下所示：|312047|<View+android:background="#000"+android:layout_width="match_parent"+android:layout_height="1px"/>|312048|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://i.imgur.com/6hQyT.png/|imageAlt^0|0|R|8|0|0|C|5|R|16|0|0|4|E|0|17|A|0|0|D|L|1D|E|2L|4|2R|E|3I|5|0|0|0|0|0|1|0|0|0|A|Y|0|1S|5|0|0|19|C|28|4|0|0^^$0|@$1|2|3|4|5|6|7|1R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1S|8|@$D|1T|E|1U|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|1V|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|1W|8|@$D|1X|E|1Y|F|G]|$D|1Z|E|20|F|G]]|9|@]|A|$]]|$1|O|3|P|5|6|7|21|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|22|8|@$D|23|E|24|F|G]]|9|@]|A|$]]|$1|S|3|T|5|6|7|25|8|@$D|26|E|27|F|G]]|9|@]|A|$]]|$1|U|3|V|5|J|7|28|8|@]|9|@]|A|$K|L]]|$1|W|3|X|5|6|7|29|8|@$D|2A|E|2B|F|G]|$D|2C|E|2D|F|G]|$D|2E|E|2F|F|G]|$D|2G|E|2H|F|G]|$D|2I|E|2J|F|G]]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|2K|8|@]|9|@]|A|$]]|$1|10|3|11|5|6|7|2L|8|@]|9|@]|A|$]]|$1|12|3|13|5|6|7|2M|8|@]|9|@]|A|$]]|$1|14|3|15|5|16|7|2N|8|@]|9|@$D|2O|E|2P|1|2Q]]|A|$]]|$1|17|3|13|5|6|7|2R|8|@]|9|@]|A|$]]|$1|18|3|19|5|6|7|2S|8|@$D|2T|E|2U|F|G]]|9|@]|A|$]]|$1|1A|3|1B|5|6|7|2V|8|@$D|2W|E|2X|F|G]]|9|@]|A|$]]|$1|1C|3|1D|5|6|7|2Y|8|@]|9|@]|A|$]]|$1|1E|3|1F|5|6|7|2Z|8|@$D|30|E|31|F|G]|$D|32|E|33|F|G]]|9|@]|A|$]]|$1|1G|3|1H|5|J|7|34|8|@]|9|@]|A|$K|L]]|$1|1I|3|-4|5|6|7|35|8|@]|9|@]|A|$]]]|1J|$1K|$5|1L|1M|1N|A|$1O|1P|1Q|-4]]]]

<h1>Option 1: Shape Drawable</h1>

This is the simplest option if you want a border around a layout or view in which you can set the background. Create an XML file in the <code>drawable</code> folder that looks something like this:

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;shape xmlns:android="http://schemas.android.com/apk/res/android"
 android:shape="rectangle" &gt;

 &lt;solid android:color="#8fff93" /&gt;

 &lt;stroke
 android:width="1px"
 android:color="#000" /&gt;

&lt;/shape&gt;
</code></pre>

You can remove the <code>solid</code> if you don't want a fill. The set <code>background="@drawable/your_shape_drawable"</code> on your layout/view.

<h1>Option 2: Background View</h1>

Here's a little trick I've used in a <code>RelativeLayout</code>. Basically you have a black square under the view you want to give a border, and then give that view some padding (not margin!) so the black square shows through at the edges.

Obviously this only works properly if the view doesn't have any transparent areas. If it does I would recommend you write a custom <code>BorderView</code> which only draws the border - it should only be a few dozen lines of code.

<pre><code>&lt;View
 android:id="@+id/border"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_alignBottom="@+id/image"
 android:layout_alignLeft="@+id/image"
 android:layout_alignRight="@+id/image"
 android:layout_alignTop="@+id/main_image"
 android:background="#000" /&gt;

&lt;ImageView
 android:id="@+id/image"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_...
 android:padding="1px"
 android:src="@drawable/..." /&gt;
</code></pre>

If you're wondering, it does work with <code>adjustViewBounds=true</code>. However, it doesn't work if you want to have a background in an entire <code>RelativeLayout</code>, because there is a bug that stops you filling a <code>RelativeLayout</code> with a <code>View</code>. In that case I'd recommend the <code>Shape</code> drawable.

<h1>Option 3: 9-patch</h1>

A final option is to use a 9-patch drawable like this one:

<img src="https://i.imgur.com/6hQyT.png"/>

You can use it on any view where you can set <code>android:background="@drawable/..."</code>. And yes it does need to be 6x6 - I tried 5x5 and it didn't work.

The disadvantage of this method is you can't change the colours very easily, but if you want fancy borders (e.g. only a border at the top and bottom, as in this question) then you may not be able to do them with the <code>Shape</code> drawable, which isn't very powerful.

<h1>Option 4: Extra views</h1>

I forgot to mention this really simple option if you only want borders above and below your view. You can put your view in a vertical <code>LinearLayout</code> (if it isn't already) and then add empty <code>View</code>s above and below it like this:

<pre><code>&lt;View android:background="#000" android:layout_width="match_parent" android:layout_height="1px"/&gt;
</code></pre>

blocks|key|312105|text|我的答案基于@Emile版本，但我使用透明颜色而不是纯色。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|312106|此示例将绘制一个2dp底部边框。|312107|<?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="2dp"
+++++++++++++++++++++android:color="#50C0E9"+/>
++++++++++++<solid+android:color="@android:color/transparent"+/>
++++++++</shape>
++++</item>
++++<item++android:bottom="2dp"+>
++++++++<shape+android:shape="rectangle"+>
++++++++++++<stroke++android:width="2dp"
+++++++++++++++++++++android:color="@color/bgcolor"+/>
++++++++++++<solid+android:color="@android:color/transparent"+/>
++++++++</shape>
++++</item>
</layer-list>|code-block|syntax|javascript|312108|@color/bgcolor是在其上绘制带有边框的视图的背景颜色。|offset|length|style|BOLD|312109|如果要更改边框的位置，请使用以下方法之一更改偏移：|312110|android:bottom="2dp"
android:top="2dp"
android:right="2dp"
android:left="2dp"|312111|或者将它们组合为具有2个或更多边框：|312112|android:bottom="2dp"+android:top="2dp"|312113|entityMap^0|0|0|0|0|E|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|10|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|11|8|@$K|12|L|13|M|N]]|9|@]|A|$]]|$1|O|3|P|5|6|7|14|8|@]|9|@]|A|$]]|$1|Q|3|R|5|F|7|15|8|@]|9|@]|A|$G|H]]|$1|S|3|T|5|6|7|16|8|@]|9|@]|A|$]]|$1|U|3|V|5|F|7|17|8|@]|9|@]|A|$G|H]]|$1|W|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|X|$]]

My answers is based on @Emile version but I use transparent color instead of solid. 
This example will draw a 2dp bottom border.

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;layer-list xmlns:android="http://schemas.android.com/apk/res/android" &gt;
 &lt;item&gt;
 &lt;shape android:shape="rectangle" &gt;
 &lt;stroke android:width="2dp"
 android:color="#50C0E9" /&gt;
 &lt;solid android:color="@android:color/transparent" /&gt;
 &lt;/shape&gt;
 &lt;/item&gt;
 &lt;item android:bottom="2dp" &gt;
 &lt;shape android:shape="rectangle" &gt;
 &lt;stroke android:width="2dp"
 android:color="@color/bgcolor" /&gt;
 &lt;solid android:color="@android:color/transparent" /&gt;
 &lt;/shape&gt;
 &lt;/item&gt;
&lt;/layer-list&gt;
</code></pre>

@color/bgcolor is the color of the background on wich you draw your view with border.

If you want to change the position of the border change the offset with one of:

<pre><code>android:bottom="2dp"
android:top="2dp"
android:right="2dp"
android:left="2dp"
</code></pre>

or combine them to have 2 or more borders:

<pre><code>android:bottom="2dp" android:top="2dp"
</code></pre>

blocks|key|1723110|text|<TextView
++++android:id="@%2Bid/textView3"
++++android:layout_width="match_parent"
++++android:layout_height="2dp"
++++android:background="#72cdf4"
++++android:text="+aa"+/>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1723111|只需在要添加边框的文本下方添加此TextView|unstyled|1723112|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>&lt;TextView
 android:id="@+id/textView3"
 android:layout_width="match_parent"
 android:layout_height="2dp"
 android:background="#72cdf4"
 android:text=" aa" /&gt;
</code></pre>

Just Add this TextView below the text where you want to add the border

blocks|key|1718879|text|因此，我想做一些稍微不同的事情:仅在底部设置边框，以模拟ListView分隔符。我修改了Piet+Delport的答案，得到了这样的结果：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1718880|<?xml+version="1.0"+encoding="utf-8"?>
<layer-list+xmlns:android="http://schemas.android.com/apk/res/android"+>
+++<item>
++++++<shape+
++++++++android:shape="rectangle">
++++++++++++<solid+android:color="@color/background_trans_light"+/>++++

++++++++</shape>
+++</item>

++++
+++<item+android:top="-2dp"
+++++++++android:left="-2dp"
+++++++++android:right="-2dp"
+++++++++android:bottom="1px">+
++++++<shape+
++++++++android:shape="rectangle">++++
++++++++++++<stroke+android:width="1dp"+android:color="@color/background_trans_mid"+/>
++++++++++++<solid+android:color="@null"+/>
++++++++</shape>
+++</item>

</layer-list>|code-block|syntax|javascript|1718881|请注意，使用px而不是dp来获得恰好1个像素的分频器(一些电话DPIs会使1dp线消失)。|1718882|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

So I wanted to do something slightly different: a border on the bottom ONLY, to simulate a ListView divider. I modified Piet Delport's answer and got this:

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;layer-list xmlns:android="http://schemas.android.com/apk/res/android" &gt;
 &lt;item&gt;
 &lt;shape 
 android:shape="rectangle"&gt;
 &lt;solid android:color="@color/background_trans_light" /&gt; 

 &lt;/shape&gt;
 &lt;/item&gt;

 &lt;!-- this mess is what we have to do to get a bottom border only. --&gt;
 &lt;item android:top="-2dp"
 android:left="-2dp"
 android:right="-2dp"
 android:bottom="1px"&gt; 
 &lt;shape 
 android:shape="rectangle"&gt; 
 &lt;stroke android:width="1dp" android:color="@color/background_trans_mid" /&gt;
 &lt;solid android:color="@null" /&gt;
 &lt;/shape&gt;
 &lt;/item&gt;

&lt;/layer-list&gt;
</code></pre>

Note using px instead of dp to get exactly 1 pixel divider (some phone DPIs will make a 1dp line disappear).

blocks|key|1718925|text|为什么不直接创建一个带有背景颜色的1dp高视图呢？这样就可以很容易地把它放在你想要的地方。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1718926|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Why not just create a 1dp high view with a background color? Then it can be easily placed where you want.

blocks|key|312246|text|//+Just+simply+add+border+around+the+image+view+or+view

<ImageView
++++++++++++++++android:id="@%2Bid/imageView2"
++++++++++++++++android:layout_width="90dp"
++++++++++++++++android:layout_height="70dp"
++++++++++++++++android:layout_centerVertical="true"
++++++++++++++++android:layout_marginRight="10dp"
++++++++++++++++android:layout_toLeftOf="@%2Bid/imageView1"
++++++++++++++++android:background="@android:color/white"
++++++++++++++++android:padding="5dip"+/>

//+After+that+dynamically+put+color+into+your+view+or+image+view+object

objView.setBackgroundColor(Color.GREEN);

//VinodJ/Abhishek|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|312247|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>// Just simply add border around the image view or view

&lt;ImageView
 android:id="@+id/imageView2"
 android:layout_width="90dp"
 android:layout_height="70dp"
 android:layout_centerVertical="true"
 android:layout_marginRight="10dp"
 android:layout_toLeftOf="@+id/imageView1"
 android:background="@android:color/white"
 android:padding="5dip" /&gt;

// After that dynamically put color into your view or image view object

objView.setBackgroundColor(Color.GREEN);

//VinodJ/Abhishek
</code></pre>

blocks|key|1723179|text|正如@Nic+Hubbard所说，有一种非常简单的方法来添加边界线。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1723180|<View
++++android:layout_width="match_parent"
++++android:layout_height="2dp"
++++android:background="#000000"+>
</View>|code-block|syntax|javascript|1723181|您可以将高度和背景颜色更改为您想要的任何颜色。|1723182|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Just as @Nic Hubbard said, there is a very easy way to add a border line.

<pre><code>&lt;View
 android:layout_width="match_parent"
 android:layout_height="2dp"
 android:background="#000000" &gt;
&lt;/View&gt;
</code></pre>

You can change the height and background color to whatever you want.

blocks|key|312284|text|写下下面的代码|type|unstyled|depth|inlineStyleRanges|entityRanges|data|312285|<View
++++android:layout_width="wrap_content"
++++android:layout_height="2dip"
++++android:layout_below="@%2Bid/topics_text"
++++android:layout_marginTop="7dp"
++++android:layout_margin="10dp"
++++android:background="#ffffff"+/>|code-block|syntax|javascript|312286|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Write down below code

<pre><code>&lt;View
 android:layout_width="wrap_content"
 android:layout_height="2dip"
 android:layout_below="@+id/topics_text"
 android:layout_marginTop="7dp"
 android:layout_margin="10dp"
 android:background="#ffffff" /&gt;
</code></pre>

blocks|key|1719021|text|只是为了将我的解决方案添加到列表中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1719022|我想要一个半透明的底部边框，它延伸到原始形状之外(这样半透明的边框就在父矩形之外)。|1719023|<layer-list+xmlns:android="http://schemas.android.com/apk/res/android"+>
++<item>
++++<shape+android:shape="rectangle"+>++++++
++++++<solid+android:color="#33000000"+/>+
++++</shape>
++</item>
++<item++android:bottom="2dp"+>
++++<shape+android:shape="rectangle"+>+++++
++++++<solid+android:color="#164586"+/>
++++</shape>
++</item>
</layer-list>|code-block|syntax|javascript|1719024|这给了我；|1719025|​|1719026|📷|atomic|offset|length|1719027|1719028|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/3e3b7665bc3a2b22fc7dcc0aac9d8594.png|imageAlt^0|0|0|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|11|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|12|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|13|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|14|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|15|8|@]|9|@]|A|$]]|$1|M|3|N|5|O|7|16|8|@]|9|@$P|17|Q|18|1|19]]|A|$]]|$1|R|3|L|5|6|7|1A|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|Z|10|-4]]]]

Just to add my solution to the list..

I wanted a semi transparent bottom border that extends past the original shape (So the semi-transparent border was outside the parent rectangle).

<pre><code>&lt;layer-list xmlns:android="http://schemas.android.com/apk/res/android" &gt;
 &lt;item&gt;
 &lt;shape android:shape="rectangle" &gt; 
 &lt;solid android:color="#33000000" /&gt; &lt;!-- Border colour --&gt;
 &lt;/shape&gt;
 &lt;/item&gt;
 &lt;item android:bottom="2dp" &gt;
 &lt;shape android:shape="rectangle" &gt; 
 &lt;solid android:color="#164586" /&gt;
 &lt;/shape&gt;
 &lt;/item&gt;
&lt;/layer-list&gt;
</code></pre>

Which gives me;

<img src="https://i.stack.imgur.com/N9CAz.png" alt="enter image description here">

blocks|key|422709|text|要只在底部添加1dp白色边框并拥有透明的背景，您可以使用下面的方法，它比这里的大多数答案更简单。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|422710|对于TextView或其他视图，请添加：|422711|android:background="@drawable/borderbottom"|code-block|syntax|javascript|422712|并在drawable目录中添加以下名为borderbottom.xml的XML|422713|<?xml+version="1.0"+encoding="utf-8"?>
<layer-list+xmlns:android="http://schemas.android.com/apk/res/android">
++++<item+android:top="-2dp"+android:left="-2dp"+android:right="-2dp">
++++++++<shape+android:shape="rectangle">
++++++++++++<stroke+android:width="1dp"+android:color="#ffffffff"+/>
++++++++++++<solid+android:color="#00000000"+/>
++++++++</shape>
++++</item>
</layer-list>|422714|如果要在顶部显示边框，请将android:top="-2dp"更改为android:bottom="-2dp"|422715|颜色不需要是白色，背景也不需要是透明的。|422716|solid元素可能不是必需的。这将取决于您的设计(感谢V.+Kalyuzhnyu)。|422717|基本上，此XML将使用矩形形状创建边框，但随后会将顶部、右侧和左侧推到形状的渲染区域之外。这只会使底部边框可见。|422718|entityMap^0|7|3|0|2|8|0|0|2|8|J|G|0|0|D|I|Y|L|0|0|0|5|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|13|8|@$9|14|A|15|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|16|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|17|8|@$9|18|A|19|B|C]|$9|1A|A|1B|B|C]]|D|@]|E|$]]|$1|O|3|P|5|J|7|1C|8|@]|D|@]|E|$K|L]]|$1|Q|3|R|5|6|7|1D|8|@$9|1E|A|1F|B|C]|$9|1G|A|1H|B|C]]|D|@]|E|$]]|$1|S|3|T|5|6|7|1I|8|@]|D|@]|E|$]]|$1|U|3|V|5|6|7|1J|8|@$9|1K|A|1L|B|C]]|D|@]|E|$]]|$1|W|3|X|5|6|7|1M|8|@]|D|@]|E|$]]|$1|Y|3|-4|5|6|7|1N|8|@]|D|@]|E|$]]]|Z|$]]

To add a <code>1dp</code> white border at the bottom only and to have a transparent background you can use the following which is simpler than most answers here.

For the <code>TextView</code> or other view add:

<pre><code>android:background="@drawable/borderbottom"
</code></pre>

And in the <code>drawable</code> directory add the following XML, called <code>borderbottom.xml</code>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;layer-list xmlns:android="http://schemas.android.com/apk/res/android"&gt;
 &lt;item android:top="-2dp" android:left="-2dp" android:right="-2dp"&gt;
 &lt;shape android:shape="rectangle"&gt;
 &lt;stroke android:width="1dp" android:color="#ffffffff" /&gt;
 &lt;solid android:color="#00000000" /&gt;
 &lt;/shape&gt;
 &lt;/item&gt;
&lt;/layer-list&gt;
</code></pre>

If you want a border at the top, change the <code>android:top="-2dp"</code> to <code>android:bottom="-2dp"</code>

The colour does not need to be white and the background does not need to be transparent either.

The <code>solid</code> element may not be required. This will depend on your design (thanks V. Kalyuzhnyu).

Basically, this XML will create a border using the rectangle shape, but then pushes the top, right and left sides beyond the render area for the shape. This leaves just the bottom border visible.

blocks|key|1723264|text|要更改此设置，请执行以下操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1723265|<TextView
++++android:text="My+text"
++++android:background="@drawable/top_bottom_border"/>|code-block|syntax|javascript|1723266|我更喜欢“drawable/top_bottom_border.xml”中的这种方法：|1723267|<?xml+version="1.0"+encoding="utf-8"?>
<layer-list+xmlns:android="http://schemas.android.com/apk/res/android">
++++<item>
++++++++<shape>
++++++++++++<gradient
++++++++++++++++android:angle="270"
++++++++++++++++android:startColor="#000"
++++++++++++++++android:centerColor="@android:color/transparent"
++++++++++++++++android:centerX="0.01"+/>
++++++++</shape>
++++</item>
++++<item>
++++++++<shape>
++++++++++++<gradient
++++++++++++++++android:angle="90"
++++++++++++++++android:startColor="#000"
++++++++++++++++android:centerColor="@android:color/transparent"
++++++++++++++++android:centerX="0.01"+/>
++++++++</shape>
++++</item>
</layer-list>|1723268|这只会生成边框，而不是在背景具有颜色时显示的矩形。|1723269|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

To change this:

<pre><code>&lt;TextView
 android:text="My text"
 android:background="@drawable/top_bottom_border"/&gt;
</code></pre>

I prefer this approach in "drawable/top_bottom_border.xml": 

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;layer-list xmlns:android="http://schemas.android.com/apk/res/android"&gt;
 &lt;item&gt;
 &lt;shape&gt;
 &lt;gradient
 android:angle="270"
 android:startColor="#000"
 android:centerColor="@android:color/transparent"
 android:centerX="0.01" /&gt;
 &lt;/shape&gt;
 &lt;/item&gt;
 &lt;item&gt;
 &lt;shape&gt;
 &lt;gradient
 android:angle="90"
 android:startColor="#000"
 android:centerColor="@android:color/transparent"
 android:centerX="0.01" /&gt;
 &lt;/shape&gt;
 &lt;/item&gt;
&lt;/layer-list&gt;
</code></pre>

This only makes the borders, not a rectangle that will appear if your background has a color.

blocks|key|312407|text|当前接受的答案不起作用。由于消除了锯齿，它在视图的左侧和右侧创建了细的垂直边框。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|312408|这个版本非常好用。它还允许您独立设置边框宽度，如果需要，还可以在左侧/右侧添加边框。唯一的缺点是它不支持透明度。|312409|使用下面的代码创建一个名为/res/drawable/top_bottom_borders.xml的xml可绘制文件，并将其指定为TextView的背景属性。|offset|length|style|CODE|312410|<?xml+version="1.0"+encoding="utf-8"?>
<layer-list+xmlns:android="http://schemas.android.com/apk/res/android">
++++<item>
++++++++<shape+android:shape="rectangle">
++++++++++++<solid+android:color="#DDDD00"+/>+
++++++++</shape>
++++</item>

++++<item
++++++++android:bottom="1dp"+
++++++++android:top="1dp">+++
++++++++<shape+android:shape="rectangle">
++++++++++++<solid+android:color="#FFFFFF"+/>++
++++++++</shape>
++++</item>
</layer-list>|code-block|syntax|javascript|312411|通过棉花糖在安卓KitKat上测试|312412|entityMap^0|0|0|D|10|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|U|8|@$F|V|G|W|H|I]]|9|@]|A|$]]|$1|J|3|K|5|L|7|X|8|@]|9|@]|A|$M|N]]|$1|O|3|P|5|6|7|Y|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

The currently accepted answer doesn't work. It creates thin vertical borders on the left and right sides of the view as a result of anti-aliasing.

This version works perfectly. It also allows you to set the border widths independently, and you can also add borders on the left / right sides if you want. The only drawback is that it does NOT support transparency.

Create an xml drawable named <code>/res/drawable/top_bottom_borders.xml</code> with the code below and assign it as a TextView's background property. 

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;layer-list xmlns:android="http://schemas.android.com/apk/res/android"&gt;
 &lt;item&gt;
 &lt;shape android:shape="rectangle"&gt;
 &lt;solid android:color="#DDDD00" /&gt; &lt;!-- border color --&gt;
 &lt;/shape&gt;
 &lt;/item&gt;

 &lt;item
 android:bottom="1dp" 
 android:top="1dp"&gt; &lt;!-- adjust borders width here --&gt;
 &lt;shape android:shape="rectangle"&gt;
 &lt;solid android:color="#FFFFFF" /&gt; &lt;!-- background color --&gt;
 &lt;/shape&gt;
 &lt;/item&gt;
&lt;/layer-list&gt;
</code></pre>

Tested on Android KitKat through Marshmallow

blocks|key|1721524|text|<shape+xmlns:android="http://schemas.android.com/apk/res/android">

<solid+android:color="@color/light_grey1"+/>
<stroke
++++android:width="1dip"
++++android:color="@color/light_grey1"+/>

<corners
++++android:bottomLeftRadius="0dp"
++++android:bottomRightRadius="0dp"
++++android:topLeftRadius="5dp"
++++android:topRightRadius="5dp"+/>

++++</shape>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1721525|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>&lt;shape xmlns:android="http://schemas.android.com/apk/res/android"&gt;

&lt;solid android:color="@color/light_grey1" /&gt;
&lt;stroke
 android:width="1dip"
 android:color="@color/light_grey1" /&gt;

&lt;corners
 android:bottomLeftRadius="0dp"
 android:bottomRightRadius="0dp"
 android:topLeftRadius="5dp"
 android:topRightRadius="5dp" /&gt;

 &lt;/shape&gt;
</code></pre>

blocks|key|422223|text|为了强制执行@phreakhead+´s和user1051892+´s答案，如果<item+android:bottom%7Candroid:left%7Candroid:right%7Candroid:top>为负，则必须大于<stroke+android:width>。如果没有，项目的绘画将与笔画的绘画混合，你可能会认为这些值不起作用。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|422224|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/17714348/3810036|1|https://stackoverflow.com/a/10732993/3810036^0|14|1O|30|M|6|E|0|L|E|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@$9|U|A|V|1|W]|$9|X|A|Y|1|Z]]|E|$]]|$1|F|3|-4|5|6|7|10|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]|N|$5|I|J|K|E|$L|O]]]]

Just to enforce <a href="https://stackoverflow.com/a/17714348/3810036">@phreakhead ´s</a> and <a href="https://stackoverflow.com/a/10732993/3810036">user1051892 ´s</a> answers, <code>&lt;item android:bottom|android:left|android:right|android:top&gt;</code> if negative, must to be greater than <code>&lt;stroke android:width&gt;</code>. If not, item´s painting will be mixed with stroke´s painting and you may think these values are not working.

blocks|key|422808|text|添加边框的最简单方法是使用InsetDrawable插入边框，下面将只显示上边框：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|422809|<?xml+version="1.0"+encoding="utf-8"?>
<inset+xmlns:android="http://schemas.android.com/apk/res/android"
++++android:insetBottom="-2dp"
++++android:insetLeft="-2dp"
++++android:insetRight="-2dp">
++++<shape+android:shape="rectangle">

++++++++<solid+android:color="@color/light_gray"+/>
++++++++<stroke
++++++++++++android:width=".5dp"
++++++++++++android:color="@color/dark_gray"+/>
++++</shape>
</inset>|code-block|syntax|javascript|422810|entityMap^0|D|D|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

Simplest way to add borders to inset the borders using <code>InsetDrawable</code>,following will show top border only :

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;inset xmlns:android="http://schemas.android.com/apk/res/android"
 android:insetBottom="-2dp"
 android:insetLeft="-2dp"
 android:insetRight="-2dp"&gt;
 &lt;shape android:shape="rectangle"&gt;

 &lt;solid android:color="@color/light_gray" /&gt;
 &lt;stroke
 android:width=".5dp"
 android:color="@color/dark_gray" /&gt;
 &lt;/shape&gt;
&lt;/inset&gt;
</code></pre>

blocks|key|1719191|text|只需在View的顶部和底部添加视图|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1719192|<?xml+version="1.0"+encoding="utf-8"?>
<android.support.constraint.ConstraintLayout+xmlns:android="http://schemas.android.com/apk/res/android"
++++xmlns:app="http://schemas.android.com/apk/res-auto"
++++android:layout_width="match_parent"
++++android:layout_height="match_parent">

++++<View
++++++++android:layout_width="match_parent"
++++++++android:layout_height="1dp"
++++++++android:background="@color/your_color"
++++++++app:layout_constraintBottom_toTopOf="@%2Bid/textView"
++++++++app:layout_constraintEnd_toEndOf="@%2Bid/textView"
++++++++app:layout_constraintStart_toStartOf="@%2Bid/textView"+/>

++++<TextView
++++++++android:id="@%2Bid/textView"
++++++++android:layout_width="0dp"
++++++++android:layout_height="wrap_content"
++++++++android:layout_marginTop="32dp"
++++++++android:gravity="center"
++++++++android:text="Testing"
++++++++app:layout_constraintEnd_toEndOf="parent"
++++++++app:layout_constraintStart_toStartOf="parent"
++++++++app:layout_constraintTop_toTopOf="parent"+/>

++++<View
++++++++android:layout_width="match_parent"
++++++++android:layout_height="1dp"
++++++++android:background="@color/your_color"
++++++++app:layout_constraintEnd_toEndOf="@%2Bid/textView"
++++++++app:layout_constraintStart_toStartOf="@%2Bid/textView"
++++++++app:layout_constraintTop_toBottomOf="@%2Bid/textView"+/>

</android.support.constraint.ConstraintLayout>|code-block|syntax|javascript|1719193|entityMap^0|3|4|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

Simply add Views at the top and bottom of the <code>View</code> 

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:app="http://schemas.android.com/apk/res-auto"
 android:layout_width="match_parent"
 android:layout_height="match_parent"&gt;

 &lt;View
 android:layout_width="match_parent"
 android:layout_height="1dp"
 android:background="@color/your_color"
 app:layout_constraintBottom_toTopOf="@+id/textView"
 app:layout_constraintEnd_toEndOf="@+id/textView"
 app:layout_constraintStart_toStartOf="@+id/textView" /&gt;

 &lt;TextView
 android:id="@+id/textView"
 android:layout_width="0dp"
 android:layout_height="wrap_content"
 android:layout_marginTop="32dp"
 android:gravity="center"
 android:text="Testing"
 app:layout_constraintEnd_toEndOf="parent"
 app:layout_constraintStart_toStartOf="parent"
 app:layout_constraintTop_toTopOf="parent" /&gt;

 &lt;View
 android:layout_width="match_parent"
 android:layout_height="1dp"
 android:background="@color/your_color"
 app:layout_constraintEnd_toEndOf="@+id/textView"
 app:layout_constraintStart_toStartOf="@+id/textView"
 app:layout_constraintTop_toBottomOf="@+id/textView" /&gt;

&lt;/android.support.constraint.ConstraintLayout&gt;
</code></pre>

blocks|key|422266|text|将文件添加到res/drawable|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|422267|<?xml+version="1.0"+encoding="utf-8"?>
++++<layer-list+xmlns:android="http://schemas.android.com/apk/res/android">
++++++++<item+android:left="-2dp"+android:right="-2dp">
++++++++++++<shape+android:shape="rectangle">
++++++++++++++++<stroke
++++++++++++++++++++android:width="1dp"
++++++++++++++++++++android:color="#000000"+/>
++++++++++++</shape>
++++++++</item>
++++</layer-list>|code-block|syntax|javascript|422268|将此文件上的链接添加到背景属性|422269|entityMap^0|0|I|0|0|B|2|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|N|$]]

Add file to res/drawable

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
 &lt;layer-list xmlns:android="http://schemas.android.com/apk/res/android"&gt;
 &lt;item android:left="-2dp" android:right="-2dp"&gt;
 &lt;shape android:shape="rectangle"&gt;
 &lt;stroke
 android:width="1dp"
 android:color="#000000" /&gt;
 &lt;/shape&gt;
 &lt;/item&gt;
 &lt;/layer-list&gt;
</code></pre>

Add link on this file to background property

blocks|key|1721601|text|您可以通过以下代码片段来完成此操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1721602|<?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">
++++++++<shape
++++++++++++android:shape="rectangle">
++++++++++++<stroke+android:width="10dp"+android:color="@android:color/holo_red_dark"+/>
+++++++++++
++++++++++++<solid+android:color="#FFDDDDDD"+/>
++++++++</shape>
++++</item>
</layer-list>|code-block|syntax|javascript|1721603|预览-|1721604|​|1721605|📷|atomic|offset|length|1721606|1721607|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/c48bdad04f078c0b653dc96f898bdc3d.png|imageAlt^0|0|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|10|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|11|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|12|8|@]|9|@]|A|$]]|$1|K|3|L|5|M|7|13|8|@]|9|@$N|14|O|15|1|16]]|A|$]]|$1|P|3|J|5|6|7|17|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X|Y|-4]]]]

You can do this by this code snippet -
<pre><code>&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
&lt;layer-list xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;&gt;
 &lt;!--Minus (-) how much dp you gave in the stroke width from left right--&gt;
 &lt;item android:left=&quot;-10dp&quot; android:right=&quot;-10dp&quot;&gt;
 &lt;shape
 android:shape=&quot;rectangle&quot;&gt;
 &lt;stroke android:width=&quot;10dp&quot; android:color=&quot;@android:color/holo_red_dark&quot; /&gt;
 &lt;!--This is the main background --&gt;
 &lt;solid android:color=&quot;#FFDDDDDD&quot; /&gt;
 &lt;/shape&gt;
 &lt;/item&gt;
&lt;/layer-list&gt;
</code></pre>
Preview -
<a href="https://i.stack.imgur.com/1ozb1.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/1ozb1.png" alt="enter image description here" /></a>

I have a TextView and I'd like to add a black border along its top and bottom borders. I tried adding <code>android:drawableTop</code> and <code>android:drawableBottom</code> to the TextView, but that only caused the entire view to become black.

<pre><code>&lt;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" /&gt;
</code></pre>

Is there a way to easily add a top and bottom border to a View (in particular, a TextView) in Android?

Is there an easy way to add a border to the top and bottom of an Android View?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我有一个TextView，我想在它的顶部和底部添加一个黑色的边框。我尝试将android:drawableTop和android:drawableBottom添加到TextView中，但这只会导致整个视图变为黑色。<TextView android:background="@android:color/green...

问有没有一种简单的方法可以在Android View的顶部和底部添加边框？
EN

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问有没有一种简单的方法可以在Android View的顶部和底部添加边框？EN