blocks|key|187759|text|我使用以下方法来解决这个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|187760|android:layout_marginBottom="-8dp"
android:layout_marginTop="-4dp"|code-block|syntax|javascript|187761|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 use the following as a workaround for this issue.

<pre><code>android:layout_marginBottom="-8dp"
android:layout_marginTop="-4dp"
</code></pre>

blocks|key|187797|text|可以在父级中绘制垂直居中的ProgressBar，这样就可以裁剪掉填充。因为ProgressBar不能画得比父对象大，所以我们必须创建一个大的父对象放在一个剪辑视图中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|187798|<FrameLayout
++++android:id="@%2Bid/clippedProgressBar"
++++xmlns:android="http://schemas.android.com/apk/res/android"
++++xmlns:tools="http://schemas.android.com/tools"
++++android:layout_width="match_parent"
++++android:layout_height="4dp"
++++tools:ignore="UselessParent">

++++<FrameLayout
++++++++android:layout_width="match_parent"
++++++++android:layout_height="16dp"
++++++++android:layout_gravity="center_vertical">

++++++++<ProgressBar
++++++++++++style="?android:attr/progressBarStyleHorizontal"
++++++++++++android:layout_width="match_parent"
++++++++++++android:layout_height="match_parent"
++++++++++++android:indeterminate="true"/>

++++</FrameLayout>

</FrameLayout>|code-block|syntax|javascript|187799|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|$]]

It's possible to draw vertically centered ProgressBar inside a parent that would clip away the padding. Since ProgressBar cannot draw itself bigger than parent, we must create a big parent to place inside a clipping view.

<pre><code>&lt;FrameLayout
 android:id="@+id/clippedProgressBar"
 xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="4dp"
 tools:ignore="UselessParent"&gt;

 &lt;FrameLayout
 android:layout_width="match_parent"
 android:layout_height="16dp"
 android:layout_gravity="center_vertical"&gt;

 &lt;ProgressBar
 style="?android:attr/progressBarStyleHorizontal"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:indeterminate="true"/&gt;

 &lt;/FrameLayout&gt;

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

blocks|key|406284|text|其中一个技巧是在进度条上添加负边距。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|406285|下面是一个XML代码示例，假设它位于您的屏幕顶部：|406286|<ProgressBar
++++android:id="@%2Bid/progressBar"
++++style="@style/Widget.AppCompat.ProgressBar.Horizontal"
++++android:layout_width="match_parent"
++++android:layout_height="wrap_content"
++++android:layout_marginTop="-7dp"
++++android:layout_marginBottom="-7dp"
++++android:indeterminate="true"+/>|code-block|syntax|javascript|406287|​|406288|📷|atomic|offset|length|406289|406290|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/75f6798b56216fb5b7caf0b1f9fffcc5.png|imageAlt^0|0|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|10|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|11|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|12|8|@]|9|@]|A|$]]|$1|K|3|L|5|M|7|13|8|@]|9|@$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]]]]

One trick is to add negative margins to your progress bar.

Below is an example of the XML code, assuming it's on top of your screen:

<pre><code>&lt;ProgressBar
 android:id="@+id/progressBar"
 style="@style/Widget.AppCompat.ProgressBar.Horizontal"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_marginTop="-7dp"
 android:layout_marginBottom="-7dp"
 android:indeterminate="true" /&gt;
</code></pre>

<a href="https://i.stack.imgur.com/A4LLO.png" rel="noreferrer"><img src="https://i.stack.imgur.com/A4LLO.png" alt="result of code"></a>

blocks|key|187849|text|苏宾的答案似乎是唯一一个(目前)不会在未来的Android+ProgressBar版本中受到破坏的脆弱的黑客攻击。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|187850|但是，我选择了使用MaterialProgressBar+library，它为我们完成了这项工作，而不是费力地拆分、修改和无限期地维护资源：|offset|length|187851|<me.zhanghai.android.materialprogressbar.MaterialProgressBar
++++android:layout_width="match_parent"
++++android:layout_height="wrap_content"
++++android:indeterminate="true"
++++android:layout_gravity="bottom"
++++custom:mpb_progressStyle="horizontal"
++++custom:mpb_showTrack="false"
++++custom:mpb_useIntrinsicPadding="false"
++++style="@style/Widget.MaterialProgressBar.ProgressBar.Horizontal.NoPadding"
/>|code-block|syntax|javascript|187852|在build.gradle中：|187853|//+Android+horizontal+ProgressBar+doesn't+allow+removal+of+top/bottom+padding
compile+'me.zhanghai.android.materialprogressbar:library:1.1.6'|187854|该项目有一个显示它与内置ProgressBar之间差异的nice+demo。|187855|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/DreaminginCodeZH/MaterialProgressBar|1|https://github.com/DreaminginCodeZH/MaterialProgressBar/blob/master/sample/src/main/res/layout/main_activity.xml^0|0|9|R|0|0|0|0|0|S|9|1|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|11|8|@]|9|@$D|12|E|13|1|14]]|A|$]]|$1|F|3|G|5|H|7|15|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|16|8|@]|9|@]|A|$]]|$1|M|3|N|5|H|7|17|8|@]|9|@]|A|$I|J]]|$1|O|3|P|5|6|7|18|8|@]|9|@$D|19|E|1A|1|1B]]|A|$]]|$1|Q|3|-4|5|6|7|1C|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X]]|Y|$5|T|U|V|A|$W|Z]]]]

Subin's answer seems to be the only one (currently) that isn't a fragile hack subject to breakage in future releases of the Android ProgressBar.

But rather than going through the trouble of breaking out the resources, modifying them, and maintaining them indefinitely, I've opted to use the <a href="https://github.com/DreaminginCodeZH/MaterialProgressBar" rel="noreferrer">MaterialProgressBar library</a>, which does that for us:

<pre><code>&lt;me.zhanghai.android.materialprogressbar.MaterialProgressBar
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:indeterminate="true"
 android:layout_gravity="bottom"
 custom:mpb_progressStyle="horizontal"
 custom:mpb_showTrack="false"
 custom:mpb_useIntrinsicPadding="false"
 style="@style/Widget.MaterialProgressBar.ProgressBar.Horizontal.NoPadding"
/&gt;
</code></pre>

In build.gradle:

<pre><code>// Android horizontal ProgressBar doesn't allow removal of top/bottom padding
compile 'me.zhanghai.android.materialprogressbar:library:1.1.6'
</code></pre>

That project has a <a href="https://github.com/DreaminginCodeZH/MaterialProgressBar/blob/master/sample/src/main/res/layout/main_activity.xml" rel="noreferrer">nice demo</a> that shows the differences between it and the built-in ProgressBar.

blocks|key|405924|text|我使用minHeight和maxHeigh。它对不同的Api版本很有帮助。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|405925|<ProgressBar
++++android:id="@%2Bid/progress_bar"
++++style="@style/Base.Widget.AppCompat.ProgressBar.Horizontal"
++++android:layout_width="match_parent"
++++android:layout_height="wrap_content"
++++android:maxHeight="3dp"
++++android:minHeight="3dp"+/>|code-block|syntax|javascript|405926|它需要同时使用两者。Api+23与|405927|android:layout_height="wrap_content"
android:minHeight="0dp"|405928|但在这种情况下，较低的Api版本会将进度条高度增加到maxHeight。|405929|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|$]]

I use minHeight and maxHeigh. It helps for different Api versions. 

<pre><code>&lt;ProgressBar
 android:id="@+id/progress_bar"
 style="@style/Base.Widget.AppCompat.ProgressBar.Horizontal"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:maxHeight="3dp"
 android:minHeight="3dp" /&gt;
</code></pre>

It needs to use both. Api 23 works nice with

<pre><code>android:layout_height="wrap_content"
android:minHeight="0dp"
</code></pre>

But lower Api versions increase progress bar height to maxHeight in that case.

blocks|key|187978|text|尝试以下操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|187979|<ProgressBar
++++android:id="@%2Bid/progress_bar"
++++style="@android:style/Widget.ProgressBar.Horizontal"
++++android:progress="25"
++++android:progressTint="@color/colorWhite"
++++android:progressBackgroundTint="@color/colorPrimaryLight"
++++android:layout_width="match_parent"
++++android:layout_height="4dp"+/>|code-block|syntax|javascript|187980|..。然后根据您的需要配置进度条，因为它最初会显示一个中等大小的条，带有黄色的进度色调和灰色的进度背景色调。另外，请注意没有垂直填充。|187981|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|$]]

Try the following:

<pre><code>&lt;ProgressBar
 android:id="@+id/progress_bar"
 style="@android:style/Widget.ProgressBar.Horizontal"
 android:progress="25"
 android:progressTint="@color/colorWhite"
 android:progressBackgroundTint="@color/colorPrimaryLight"
 android:layout_width="match_parent"
 android:layout_height="4dp" /&gt;
</code></pre>

... and then configure the progress bar to your needs since it'll initially display a mid-sized bar with a yellow-colored progress tint with a grayish progress background tint. Also, notice that there's no vertical padding.

blocks|key|406405|text|在Linearlayout中像这样使用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|406406|+<LinearLayout
+++++android:layout_width="match_parent"
+++++android:background="#efefef"
+++++android:layout_height="wrap_content">

+++++<ProgressBar
+++++++++android:id="@%2Bid/progressBar"
+++++++++android:layout_width="fill_parent"
+++++++++android:layout_height="wrap_content"
+++++++++android:indeterminate="true"
+++++++++android:visibility="gone"
+++++++++android:layout_marginTop="-7dp"
+++++++++android:layout_marginBottom="-7dp"
+++++++++style="@style/Widget.AppCompat.ProgressBar.Horizontal"+/>
+</LinearLayout>|code-block|syntax|javascript|406407|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|$]]

Use like this, inside Linearlayout
<pre><code> &lt;LinearLayout
 android:layout_width=&quot;match_parent&quot;
 android:background=&quot;#efefef&quot;
 android:layout_height=&quot;wrap_content&quot;&gt;

 &lt;ProgressBar
 android:id=&quot;@+id/progressBar&quot;
 android:layout_width=&quot;fill_parent&quot;
 android:layout_height=&quot;wrap_content&quot;
 android:indeterminate=&quot;true&quot;
 android:visibility=&quot;gone&quot;
 android:layout_marginTop=&quot;-7dp&quot;
 android:layout_marginBottom=&quot;-7dp&quot;
 style=&quot;@style/Widget.AppCompat.ProgressBar.Horizontal&quot; /&gt;
 &lt;/LinearLayout&gt;
</code></pre>

blocks|key|188339|text|对我来说，这是可行的。进度条很清晰。非常合身。我尝试了不同高度的框架和进度。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|188340|<FrameLayout+++++++++++++
++++android:layout_width="match_parent"+++++++++++++
++++android:layout_height="4dp">++++

+++<ProgressBar
+++++++style="?android:attr/progressBarStyleHorizontal"
+++++++android:layout_width="match_parent"
+++++++android:layout_height="16dp"
+++++++android:layout_gravity="center"
+++++++android:indeterminate="true"/>
</FrameLayout>|code-block|syntax|javascript|188341|preview|offset|length|188342|entityMap|0|LINK|mutability|MUTABLE|url|https://i.stack.imgur.com/UFXzR.png^0|0|0|0|7|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

For me this is working. Progress bar is sharp. It fits perfectly. I tried with different heights of frame and progress.
<pre><code>&lt;FrameLayout 
 android:layout_width=&quot;match_parent&quot; 
 android:layout_height=&quot;4dp&quot;&gt; 

 &lt;ProgressBar
 style=&quot;?android:attr/progressBarStyleHorizontal&quot;
 android:layout_width=&quot;match_parent&quot;
 android:layout_height=&quot;16dp&quot;
 android:layout_gravity=&quot;center&quot;
 android:indeterminate=&quot;true&quot;/&gt;
&lt;/FrameLayout&gt;
</code></pre>
<a href="https://i.stack.imgur.com/UFXzR.png" rel="nofollow noreferrer">preview</a>

blocks|key|187888|text|在drawable中定义的图层列表中添加android:progressDrawable为我修复了这个问题。它的工作原理是在自定义的可绘制文件中屏蔽进度条|type|unstyled|depth|inlineStyleRanges|entityRanges|data|187889|在https://stackoverflow.com/a/4454450/1145905描述的示例实现|offset|length|187890|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/4454450/1145905^0|0|1|17|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

adding the android:progressDrawable to a layer-list defined in drawable fixed the issue for me. It works by masking the progess bar in a custom drawable

example implementation described at <a href="https://stackoverflow.com/a/4454450/1145905">https://stackoverflow.com/a/4454450/1145905</a>

blocks|key|187931|text|我使用的是style="@style/Widget.AppCompat.ProgressBar.Horizontal"，去掉页边距相当容易。这种风格是：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|187932|++++<item+name="progressDrawable">@drawable/progress_horizontal_material</item>
++++<item+name="indeterminateDrawable">@drawable/progress_indeterminate_horizontal_material</item>
++++<item+name="minHeight">16dip</item>
++++<item+name="maxHeight">16dip</item>|code-block|syntax|javascript|187933|我刚刚覆盖了最小/最大高度：|187934|++++<ProgressBar
++++++++style="@style/Widget.AppCompat.ProgressBar.Horizontal"
++++++++android:layout_width="match_parent"
++++++++android:layout_height="2dp"
++++++++android:indeterminate="true"
++++++++android:minHeight="2dp"
++++++++android:maxHeight="2dp"+/>|187935|entityMap^0|5|1I|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|P|$]]

I'm using <code>style="@style/Widget.AppCompat.ProgressBar.Horizontal"</code> and it was fairly easy to get rid of the margins. That style is:

<pre><code> &lt;item name="progressDrawable"&gt;@drawable/progress_horizontal_material&lt;/item&gt;
 &lt;item name="indeterminateDrawable"&gt;@drawable/progress_indeterminate_horizontal_material&lt;/item&gt;
 &lt;item name="minHeight"&gt;16dip&lt;/item&gt;
 &lt;item name="maxHeight"&gt;16dip&lt;/item&gt;
</code></pre>

I just overrode the min/max height:

<pre><code> &lt;ProgressBar
 style="@style/Widget.AppCompat.ProgressBar.Horizontal"
 android:layout_width="match_parent"
 android:layout_height="2dp"
 android:indeterminate="true"
 android:minHeight="2dp"
 android:maxHeight="2dp" /&gt;
</code></pre>

blocks|key|406344|text|不需要下载任何新模块，甚至不需要在进度栏上放置FrameLayout。这些都只是些小技巧。只有两个步骤：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|406345|在你的whatever.xml中|406346|<ProgressBar
++++android:id="@%2Bid/workoutSessionGlobalProgress"
++++android:layout_width="match_parent"
++++android:layout_height="YOUR_HEIGHT"
++++android:progressDrawable="@drawable/progress_horizontal"
++++android:progress="0"
++++
++++android:max="DURATION+*+1000"
++++android:indeterminate="false"
++++style="@style/Widget.MaterialProgressBar.ProgressBar.Horizontal"/>|code-block|syntax|javascript|406347|progress_horizontal.xml，您可以随意更改这些值。|406348|不喜欢圆角吗？|406349|删除拐角半径|406350|不喜欢这些颜色吗？改变颜色，等等。完成！|406351|<layer-list+xmlns:android="http://schemas.android.com/apk/res/android">

++++<item+android:id="@android:id/background">
++++++++<shape>
++++++++++++<corners+android:radius="5dip"+/>
++++++++++++<gradient
++++++++++++++++++++android:startColor="#ff9d9e9d"
++++++++++++++++++++android:centerColor="#ff5a5d5a"
++++++++++++++++++++android:centerY="0.75"
++++++++++++++++++++android:endColor="#ff747674"
++++++++++++++++++++android:angle="270"
++++++++++++++++++++/>
++++++++</shape>
++++</item>

++++<item+android:id="@android:id/secondaryProgress">
++++++++<clip>
++++++++++++<shape>
++++++++++++++++<corners+android:radius="5dip"+/>
++++++++++++++++<gradient
++++++++++++++++++++++++android:startColor="#80ffd300"
++++++++++++++++++++++++android:centerColor="#80ffb600"
++++++++++++++++++++++++android:centerY="0.75"
++++++++++++++++++++++++android:endColor="#a0ffcb00"
++++++++++++++++++++++++android:angle="270"
++++++++++++++++++++++++/>
++++++++++++</shape>
++++++++</clip>
++++</item>

++++<item+android:id="@android:id/progress">
++++++++<clip>
++++++++++++<shape>
++++++++++++++++<corners+android:radius="5dip"+/>
++++++++++++++++<gradient
++++++++++++++++++++++++android:startColor="#ffffd300"
++++++++++++++++++++++++android:centerColor="#ffffb600"
++++++++++++++++++++++++android:centerY="0.75"
++++++++++++++++++++++++android:endColor="#ffffcb00"
++++++++++++++++++++++++android:angle="270"
++++++++++++++++++++++++/>
++++++++++++</shape>
++++++++</clip>
++++</item>

</layer-list>|406352|通常，这些是更改任何您不喜欢的代码的步骤。只要找到源代码，找出需要修改的地方即可。如果您遵循ProgressBar源代码，您会发现它引用了一个名为progress_horizontal.xml的文件。基本上我是如何解决我所有的XML问题的。|406353|entityMap^0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|Z|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|10|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|11|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|12|8|@]|9|@]|A|$]]|$1|Q|3|R|5|F|7|13|8|@]|9|@]|A|$G|H]]|$1|S|3|T|5|6|7|14|8|@]|9|@]|A|$]]|$1|U|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|V|$]]

Not necessary to download any new module or even put a FrameLayout around your Progress Bar. These are all just hacks. Only 2 steps:

In your whatever.xml

<pre><code>&lt;ProgressBar
 android:id="@+id/workoutSessionGlobalProgress"
 android:layout_width="match_parent"
 android:layout_height="YOUR_HEIGHT"
 android:progressDrawable="@drawable/progress_horizontal"
 android:progress="0"
 &lt;!-- High value to make ValueAnimator smoother --&gt;
 android:max="DURATION * 1000"
 android:indeterminate="false"
 style="@style/Widget.MaterialProgressBar.ProgressBar.Horizontal"/&gt;
</code></pre>

progress_horizontal.xml, Change the values as you please.

Don't like the rounded corners? Remove corner radius

Don't like the colors? Change the colors, etc.
Done!

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

 &lt;item android:id="@android:id/background"&gt;
 &lt;shape&gt;
 &lt;corners android:radius="5dip" /&gt;
 &lt;gradient
 android:startColor="#ff9d9e9d"
 android:centerColor="#ff5a5d5a"
 android:centerY="0.75"
 android:endColor="#ff747674"
 android:angle="270"
 /&gt;
 &lt;/shape&gt;
 &lt;/item&gt;

 &lt;item android:id="@android:id/secondaryProgress"&gt;
 &lt;clip&gt;
 &lt;shape&gt;
 &lt;corners android:radius="5dip" /&gt;
 &lt;gradient
 android:startColor="#80ffd300"
 android:centerColor="#80ffb600"
 android:centerY="0.75"
 android:endColor="#a0ffcb00"
 android:angle="270"
 /&gt;
 &lt;/shape&gt;
 &lt;/clip&gt;
 &lt;/item&gt;

 &lt;item android:id="@android:id/progress"&gt;
 &lt;clip&gt;
 &lt;shape&gt;
 &lt;corners android:radius="5dip" /&gt;
 &lt;gradient
 android:startColor="#ffffd300"
 android:centerColor="#ffffb600"
 android:centerY="0.75"
 android:endColor="#ffffcb00"
 android:angle="270"
 /&gt;
 &lt;/shape&gt;
 &lt;/clip&gt;
 &lt;/item&gt;

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

Generally, these are the steps to change the code of anything you don't like. Just find the source code and figure out what to change. If you follow the ProgressBar source code, you will find a file called progress_horizontal.xml that it references. Basically how I solve all my XML problems.

blocks|key|406441|text|只需使用没有隐藏边距的材料ProgressIndicator即可。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|406442|<com.google.android.material.progressindicator.ProgressIndicator
++++++++android:id="@%2Bid/progressBar"
++++++++style="@style/Widget.MaterialComponents.ProgressIndicator.Linear.Indeterminate"
++++++++android:layout_width="match_parent"
++++++++android:layout_height="wrap_content"
++++++++app:indicatorColor="@color/colorPrimary"
++++++++app:trackColor="@color/colorAccent"+/>|code-block|syntax|javascript|406443|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|$]]

Just make use of Material ProgressIndicator which has no hidden margin.

<pre><code>&lt;com.google.android.material.progressindicator.ProgressIndicator
 android:id="@+id/progressBar"
 style="@style/Widget.MaterialComponents.ProgressIndicator.Linear.Indeterminate"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 app:indicatorColor="@color/colorPrimary"
 app:trackColor="@color/colorAccent" /&gt;
</code></pre>

blocks|key|406300|text|+<ProgressBar
++++++++android:layout_marginTop="-8dp"
++++++++android:layout_marginLeft="-8dp"
++++++++android:layout_marginRight="-8dp"
++++++++android:id="@%2Bid/progress_bar"
++++++++style="?android:attr/progressBarStyleHorizontal"
++++++++android:layout_width="match_parent"
++++++++android:layout_height="4dp"
++++++++android:indeterminate="false"
++++++++android:indeterminateTint="@color/white"
++++++++android:max="100"
++++++++android:paddingStart="8dp"
++++++++android:paddingRight="0dp"
++++++++android:progressDrawable="@drawable/progress_bg"+/>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|406301|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;ProgressBar
 android:layout_marginTop="-8dp"
 android:layout_marginLeft="-8dp"
 android:layout_marginRight="-8dp"
 android:id="@+id/progress_bar"
 style="?android:attr/progressBarStyleHorizontal"
 android:layout_width="match_parent"
 android:layout_height="4dp"
 android:indeterminate="false"
 android:indeterminateTint="@color/white"
 android:max="100"
 android:paddingStart="8dp"
 android:paddingRight="0dp"
 android:progressDrawable="@drawable/progress_bg" /&gt;
</code></pre>

blocks|key|188257|text|<androidx.core.widget.ContentLoadingProgressBar
++++++++++++++++++++android:id="@%2Bid/progressBar"
++++++++++++++++++++style="@style/Widget.AppCompat.ProgressBar.Horizontal"
++++++++++++++++++++android:layout_width="0dp"
++++++++++++++++++++android:layout_height="wrap_content"
++++++++++++++++++++android:indeterminate="true"
++++++++++++++++++++android:paddingTop="2dp"
++++++++++++++++++++app:layout_constraintTop_toTopOf="parent"
++++++++++++++++++++app:layout_constraintBottom_toTopOf="parent"
++++++++++++++++++++app:layout_constraintEnd_toEndOf="parent"
++++++++++++++++++++app:layout_constraintStart_toStartOf="parent"/>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|188258|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;androidx.core.widget.ContentLoadingProgressBar
 android:id="@+id/progressBar"
 style="@style/Widget.AppCompat.ProgressBar.Horizontal"
 android:layout_width="0dp"
 android:layout_height="wrap_content"
 android:indeterminate="true"
 android:paddingTop="2dp"
 app:layout_constraintTop_toTopOf="parent"
 app:layout_constraintBottom_toTopOf="parent"
 app:layout_constraintEnd_toEndOf="parent"
 app:layout_constraintStart_toStartOf="parent"/&gt;
</code></pre>

blocks|key|188052|text|一个简单的无技巧的解决方案是在LinearLayout中使用两个Views来伪造ProgressBar，它与任何版本的安卓系统都兼容，并且不需要外部库。这就是我最终得到的结果。看起来很整洁，这种方法非常灵活--你可以用时髦的方式给它添加动画，添加文本等。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|188053|布局：|188054|<LinearLayout
++++android:id="@%2Bid/inventory_progress_layout"
++++android:layout_width="match_parent"
++++android:layout_height="4dp"
++++android:orientation="horizontal">

++++<TextView
++++++++android:id="@%2Bid/inventory_progress_value"
++++++++android:layout_width="match_parent"
++++++++android:layout_height="match_parent"+/>

++++<TextView
++++++++android:id="@%2Bid/inventory_progress_remaining"
++++++++android:layout_width="match_parent"
++++++++android:layout_height="match_parent"+/>
</LinearLayout>|code-block|syntax|javascript|188055|代码：|188056|public+void+setProgressValue(float+percentage)+{
++++TextView+progressValue+=+(TextView)+findViewById(R.id.inventory_progress_value);
++++TextView+progressRemaining+=+(TextView)+findViewById(R.id.inventory_progress_remaining);

++++LinearLayout.LayoutParams+paramsValue+=+new+LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,+ViewGroup.LayoutParams.MATCH_PARENT);
++++LinearLayout.LayoutParams+paramsRemaining+=+new+LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,+ViewGroup.LayoutParams.MATCH_PARENT);

++++paramsValue.weight+=+(100+-+percentage);
++++paramsRemaining.weight+=+percentage;

++++progressValue.setLayoutParams(paramsValue);
++++progressRemaining.setLayoutParams(paramsRemaining);

}|188057|结果(添加了一些高程)：|188058|​|188059|📷|atomic|188060|188061|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/1ca4823a5cb4c482dce87357e934af20.png|imageAlt^0|F|C|W|5|14|B|0|0|0|0|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|17|8|@$9|18|A|19|B|C]|$9|1A|A|1B|B|C]|$9|1C|A|1D|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1E|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|1F|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|1G|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|1H|8|@]|D|@]|E|$K|L]]|$1|Q|3|R|5|6|7|1I|8|@]|D|@]|E|$]]|$1|S|3|T|5|6|7|1J|8|@]|D|@]|E|$]]|$1|U|3|V|5|W|7|1K|8|@]|D|@$9|1L|A|1M|1|1N]]|E|$]]|$1|X|3|T|5|6|7|1O|8|@]|D|@]|E|$]]|$1|Y|3|-4|5|6|7|1P|8|@]|D|@]|E|$]]]|Z|$10|$5|11|12|13|E|$14|15|16|-4]]]]

A simple no-tricks solution which is compatible with any version of Android and doesn't need external libraries is faking <code>ProgressBar</code> with two <code>Views</code> inside <code>LinearLayout</code>. This is what I ended up with. Looks pretty neat and this approach is quite flexible - you can animate it in funky ways, add text etc.

Layout:

<pre><code>&lt;LinearLayout
 android:id="@+id/inventory_progress_layout"
 android:layout_width="match_parent"
 android:layout_height="4dp"
 android:orientation="horizontal"&gt;

 &lt;TextView
 android:id="@+id/inventory_progress_value"
 android:layout_width="match_parent"
 android:layout_height="match_parent" /&gt;

 &lt;TextView
 android:id="@+id/inventory_progress_remaining"
 android:layout_width="match_parent"
 android:layout_height="match_parent" /&gt;
&lt;/LinearLayout&gt;
</code></pre>

Code:

<pre><code>public void setProgressValue(float percentage) {
 TextView progressValue = (TextView) findViewById(R.id.inventory_progress_value);
 TextView progressRemaining = (TextView) findViewById(R.id.inventory_progress_remaining);

 LinearLayout.LayoutParams paramsValue = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
 LinearLayout.LayoutParams paramsRemaining = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);

 paramsValue.weight = (100 - percentage);
 paramsRemaining.weight = percentage;

 progressValue.setLayoutParams(paramsValue);
 progressRemaining.setLayoutParams(paramsRemaining);

}
</code></pre>

Result (with some elevation added):

<a href="https://i.stack.imgur.com/PpmFa.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/PpmFa.png" alt="enter image description here"></a>

blocks|key|188233|text|最佳解决方案应该是|type|unstyled|depth|inlineStyleRanges|entityRanges|data|188234|android:minHeight="0dp"|code-block|syntax|javascript|188235|没有变通的办法，工作起来就像个魔咒。|188236|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|$]]

The best solution should be 

<pre><code>android:minHeight="0dp"
</code></pre>

No workaround and works like a charm.

blocks|key|188311|text|将progressBar的大小设置得非常大(我指的是高度)，然后将其放入您希望的progressBar所需大小的frameLayout中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|188312|<FrameLayout
++++android:layout_width="match_parent"
++++android:layout_height="10dp">

++++<ProgressBar
++++++++android:id="@%2Bid/progress_bar"
++++++++style="?android:attr/progressBarStyleHorizontal"
++++++++android:layout_width="match_parent"
++++++++android:layout_height="100dp"
++++++++android:layout_gravity="center"
++++++++android:backgroundTint="@android:color/transparent"
++++++++android:indeterminate="true"
++++++++android:indeterminateTint="@color/white"+/>

</FrameLayout>|code-block|syntax|javascript|188313|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|$]]

Make the size of the progressBar really big (i mean height) and then place it into a frameLayout of the size that you wish your progressBar needs to be.
<pre><code>&lt;FrameLayout
 android:layout_width=&quot;match_parent&quot;
 android:layout_height=&quot;10dp&quot;&gt;

 &lt;ProgressBar
 android:id=&quot;@+id/progress_bar&quot;
 style=&quot;?android:attr/progressBarStyleHorizontal&quot;
 android:layout_width=&quot;match_parent&quot;
 android:layout_height=&quot;100dp&quot;
 android:layout_gravity=&quot;center&quot;
 android:backgroundTint=&quot;@android:color/transparent&quot;
 android:indeterminate=&quot;true&quot;
 android:indeterminateTint=&quot;@color/white&quot; /&gt;

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

By default the ProgressBar has a certain padding above and below the bar itself. Is there a way to remove this padding so as to only have the bar in the end?

Remove vertical padding from horizontal ProgressBar

默认情况下，ProgressBar在栏本身的上方和下方都有一定的填充。有没有一种方法可以去掉这个填充，使最后只有条呢？

问从水平ProgressBar中删除垂直填充
EN

回答 17

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