blocks|key|2892773|text|Actionbar已被弃用，并由Toolbar取代。也就是说，如果您现在想继续使用Actionbar，您可以执行以下操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2892774|2892775|在res文件夹的values文件夹中打开styles.xml。|ordered-list-item|2892776|将单词styles.xml添加到主题名称的开头，使其显示为|2892777|2892778|​|2892779|📷|atomic|offset|length|2892780|我今天遇到了同样的问题，这个解决方案对我很有效。仅供参考，我在Android+Studio中，但希望解决方案与Eclipse类似。|2892781|仅供参考，这里有一篇很不错的博客文章，内容是在你准备好这样做的时候用工具栏替换操作栏：https://blog.xamarin.com/android-tips-hello-toolbar-goodbye-action-bar/|2892782|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/7441433449e71c83a9e2d8a26cabaee4.png|imageAlt|1|LINK|MUTABLE|url|https://blog.xamarin.com/android-tips-hello-toolbar-goodbye-action-bar/^0|0|0|0|0|0|0|0|1|0|0|0|17|1Z|1|0^^$0|@$1|2|3|4|5|6|7|17|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|18|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|19|8|@]|9|@]|A|$]]|$1|F|3|G|5|E|7|1A|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|1C|8|@]|9|@]|A|$]]|$1|K|3|L|5|M|7|1D|8|@]|9|@$N|1E|O|1F|1|1G]]|A|$]]|$1|P|3|Q|5|6|7|1H|8|@]|9|@]|A|$]]|$1|R|3|S|5|6|7|1I|8|@]|9|@$N|1J|O|1K|1|1L]]|A|$]]|$1|T|3|-4|5|6|7|1M|8|@]|9|@]|A|$]]]|U|$V|$5|W|X|Y|A|$Z|10|11|-4]]|12|$5|13|X|14|A|$15|16]]]]

The Actionbar has been deprecated and replaced by Toolbar. That being said, you can do the following if you want to continue using Actionbar for now:

<ol>
<li>Open styles.xml in the values folder inside the res folder.</li>
<li>Add the word Base to the beginning of the theme name so that it reads "Base.Theme.AppCompat.Light.DarkActionBar"</li>
</ol>

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

I had the same issue today and this solution worked for me. FYI I am in Android Studio though, but hopefully,the solution is similar for Eclipse.

FYI here is a decent blog post on replacing the Actionbar with the Toolbar for when you are ready to do so: <a href="https://blog.xamarin.com/android-tips-hello-toolbar-goodbye-action-bar/" rel="nofollow noreferrer">https://blog.xamarin.com/android-tips-hello-toolbar-goodbye-action-bar/</a>

blocks|key|2892882|text|我想你一定是在你的module设置中依赖"com.android.support:appcompat-v7:23.1.1"。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2892883|ActionBar已被弃用。|2892884|只需在"build.gradle".中将依赖项从'com.android.support:appcompat-v7:23.1.1'更改为'com.android.support:appcompat-v7:23.0.1'|BOLD|2892885|您还可以将父样式更改为"Theme.AppCompat.Light.NoActionBar"。|2892886|尝试使用Toolbar而不是ActionBar。|2892887|entityMap^0|9|6|K|15|0|0|9|0|3|E|O|15|1W|15|0|B|Z|0|4|7|E|9|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|Y|8|@$9|Z|A|10|B|J]|$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@]|E|$]]|$1|K|3|L|5|6|7|15|8|@$9|16|A|17|B|C]]|D|@]|E|$]]|$1|M|3|N|5|6|7|18|8|@$9|19|A|1A|B|C]|$9|1B|A|1C|B|C]]|D|@]|E|$]]|$1|O|3|-4|5|6|7|1D|8|@]|D|@]|E|$]]]|P|$]]

I think you must be depending on <code>"com.android.support:appcompat-v7:23.1.1"</code> in your <code>module</code> settings.

<code>ActionBar</code> has been deprecated.

Just change your dependencies from <code>'com.android.support:appcompat-v7:23.1.1'</code> to <code>'com.android.support:appcompat-v7:23.0.1'</code> in "build.gradle".

You can also change your style parent to <code>"Theme.AppCompat.Light.NoActionBar"</code>.

Try to use the <code>Toolbar</code> instead of <code>ActionBar</code>.

blocks|key|123106|text|这个很适合我|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|123107|更改res/+AppTheme+/styles.xml中的值父级解决了此问题。替换|123108|<style+name="AppTheme"+parent="Theme.AppCompat.Light.DarkActionBar">

</style>|code-block|syntax|javascript|123109|使用|123110|<style+name="AppTheme"+parent="Base.Theme.AppCompat.Light.DarkActionBar">

</style>|123111|或者您可以从列表中更改接口级别21。|123112|entityMap^0|0|6|0|0|0|0|0|B|6|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|X|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|Y|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|Z|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|10|8|@]|D|@]|E|$K|L]]|$1|Q|3|R|5|6|7|11|8|@$9|12|A|13|B|C]]|D|@]|E|$]]|$1|S|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|T|$]]

This one works for me

Changing AppTheme parent in res/values/styles.xml resolved this problem. Replace

<pre><code>&lt;style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar"&gt;
&lt;!-- Customize your theme here. --&gt;
&lt;/style&gt;
</code></pre>

with

<pre><code>&lt;style name="AppTheme" parent="Base.Theme.AppCompat.Light.DarkActionBar"&gt;
&lt;!-- Customize your theme here. --&gt;
&lt;/style&gt;
</code></pre>

Or you can change API level 21 from list.

blocks|key|2892945|text|转到:+res-->values-->styles(V21)-->|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2892946|代码|offset|length|style|BOLD|2892947|​|2892948|<style+name="AppTheme.NoActionBar">
++++<item+name="windowActionBar">false</item>
++++<item+name="windowNoTitle">true</item>
++++<item+name="android:windowDrawsSystemBarBackgrounds">true</item>
++++<item+name="android:statusBarColor">@android:color/transparent</item>
</style>|code-block|syntax|javascript|2892949|2892950|在预览中选择您的主题作为Apptheme.NoActionBar。欢迎回到ToolBar，因为ActionBar已经过时了。不需要在build.gradle(Module:app)中更改依赖项。从com.android.support:appcompat-v7:23.1.1到com.android.support:appcompat-v7:23.0.1。|CODE|2892951|希望这能对你有所帮助！|2892952|entityMap^0|0|0|2|0|0|0|0|1|2|C|K|11|7|1B|9|1U|O|2Q|13|3U|13|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@$D|Y|E|Z|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|10|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|11|8|@]|9|@]|A|$M|N]]|$1|O|3|I|5|6|7|12|8|@]|9|@]|A|$]]|$1|P|3|Q|5|6|7|13|8|@$D|14|E|15|F|G]|$D|16|E|17|F|R]|$D|18|E|19|F|R]|$D|1A|E|1B|F|R]|$D|1C|E|1D|F|R]|$D|1E|E|1F|F|R]|$D|1G|E|1H|F|R]]|9|@]|A|$]]|$1|S|3|T|5|6|7|1I|8|@]|9|@]|A|$]]|$1|U|3|-4|5|6|7|1J|8|@]|9|@]|A|$]]]|V|$]]

goto: res-->values-->styles(V21)-->

Code



<pre><code>&lt;style name="AppTheme.NoActionBar"&gt;
 &lt;item name="windowActionBar"&gt;false&lt;/item&gt;
 &lt;item name="windowNoTitle"&gt;true&lt;/item&gt;
 &lt;item name="android:windowDrawsSystemBarBackgrounds"&gt;true&lt;/item&gt;
 &lt;item name="android:statusBarColor"&gt;@android:color/transparent&lt;/item&gt;
&lt;/style&gt;
</code></pre>



select your theme as <code>Apptheme.NoActionBar</code> in preview. Because <code>ActionBar</code> is depricated, welcome back to <code>ToolBar</code>. NO need to change your dependencies in <code>build.gradle(Module:app)</code>.
from <code>com.android.support:appcompat-v7:23.1.1</code> to <code>com.android.support:appcompat-v7:23.0.1</code>.

Hope this will help you!!!

blocks|key|2681204|text|我遇到了类似的问题，正如许多人所说的那样，由于ActionBar已经被弃用，所以诀窍是指定|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2681205|<style+name="AppTheme"+parent="Theme.AppCompat.Light.NoActionBar">|code-block|syntax|javascript|2681206|注意:父对象以.NoActionBar结尾。|2681207|自从ActionBar被弃用以来，安卓开始使用ToolBar，你可以在developer.android.com上阅读到这篇文章|offset|length|2681208|我试着指定|2681209|<style+name="AppTheme.NoActionBar">|2681210|正如另一篇文章所说的那样，这抛出了错误。尽管其他人可能没有这个问题。|2681211|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.android.com/reference/android/widget/Toolbar.html^0|0|0|0|Z|L|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|11|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|12|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|13|8|@]|9|@$K|14|L|15|1|16]]|A|$]]|$1|M|3|N|5|6|7|17|8|@]|9|@]|A|$]]|$1|O|3|P|5|D|7|18|8|@]|9|@]|A|$E|F]]|$1|Q|3|R|5|6|7|19|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|Z]]]]

I had a similar issue, and as many have said since ActionBar has been deprecated the trick was to specify

<pre><code>&lt;style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar"&gt;
</code></pre>

NOTE: that the parent ends in .NoActionBar.

Since ActionBar has been deprecated Android has gone into using ToolBar which you can read about here on the <a href="http://developer.android.com/reference/android/widget/Toolbar.html" rel="noreferrer">developer.android.com</a>

I tried specifying 

<pre><code>&lt;style name="AppTheme.NoActionBar"&gt;
</code></pre>

As a another post stated and that threw errors. Though others may not have that issue.

blocks|key|126004|text|我在Android+Studio1.5(即使是AppCompatActivity)中也遇到了同样的问题，我试图解决这个问题的方法是将我的Android+Studio2.0升级到2.0。它解决了我的问题。您可以在以下位置找到下载的链接：http://tools.android.com/download/studio/canary/latest|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|126005|entityMap|0|LINK|mutability|MUTABLE|url|http://tools.android.com/download/studio/canary/latest^0|39|1I|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

I have the same problem in Android Studio 1.5 (even with AppCompatActivity), and my attempt to solve the problem was to update my Android Studio to 2.0. It solves the problem in my case. You can found the link download in: <a href="http://tools.android.com/download/studio/canary/latest" rel="nofollow">http://tools.android.com/download/studio/canary/latest</a>

blocks|key|123005|text|谢谢@joshgoldeneagle，为我在版本1.4中工作。在AS中同样有效的是打开"build.gradle+(Module.app)“并将版本从v7.23.1.1更改为v7.23.0.1+-hth|type|unstyled|depth|inlineStyleRanges|entityRanges|data|123006|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|$]]

thanks @joshgoldeneagle, worked in AS v1.4 for me. also effective in AS is to open "build.gradle (Module.app)" and change version from v7.23.1.1 to v7.23.0.1 -hth

blocks|key|124197|text|快速修复|type|unstyled|depth|inlineStyleRanges|entityRanges|data|124198|在UI预览工具中选择没有AtcionBar的主题|124199|📷|atomic|offset|length|124200|124201|​|124202|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/9e769655edaadff73892ea455e34d9dc.png|imageAlt|1|https://ask.qcloudimg.com/http-save/yehe-900000/a47a5997a6faa2b3dcca640e1603906f.png^0|0|0|0|1|0|0|0|1|1|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@$G|Z|H|10|1|11]]|A|$]]|$1|I|3|E|5|F|7|12|8|@]|9|@$G|13|H|14|1|15]]|A|$]]|$1|J|3|K|5|6|7|16|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|M|$N|$5|O|P|Q|A|$R|S|T|-4]]|U|$5|O|P|Q|A|$R|V|T|-4]]]]

<h3>Quick fix</h3>

Select a theme with no AtcionBar in UI Preview Tool 
<a href="https://i.stack.imgur.com/o2JJB.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/o2JJB.png" alt="Pick image button"></a>
<a href="https://i.stack.imgur.com/UwTuu.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/UwTuu.png" alt="enter image description here"></a>

blocks|key|124258|text|您需要将api呈现级别更改为17，更高级别的api可能会出现渲染问题，可能更高级别的api应该具有默认主题，并且希望您不会被指定为无。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|124259|​|124260|📷|atomic|offset|length|124261|124262|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/ef8ea786c20b7a2fec2e05d563efc69f.png|imageAlt^0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@$G|V|H|W|1|X]]|A|$]]|$1|I|3|C|5|6|7|Y|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q|R|-4]]]]

You will need to change the api rendering level to 17, there may be rendering problem with higher level apis, might be higher level apis suppose to have a default theme, and hope you are not specified none.

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

blocks|key|2893091|text|对于AS+v1.4，在styles.xml文件夹中的Theme.AppCompat.Light.DarkActionBar之前添加"Base“解决了问题|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2893092|​|2893093|此外，更新到ASV2.1也解决了这个问题。哪个更好可能取决于合作者和他们的AS版本。|2893094|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

For AS v1.4 adding "Base" before Theme.AppCompat.Light.DarkActionBar in the styles.xml folder solved the problem 



Additionally, updating to AS v2.1 also solved the problem. Which is better likely depends on collaborators and their AS version.

blocks|key|126058|text|在res/+AppTheme+/styles.xml中，你会发现你的值如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|126059|​|126060|更改为:-|126061|126062|通过添加"Base“，渲染问题将得到解决。|126063|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|M|8|@]|9|@]|A|$]]|$1|F|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|P|8|@]|9|@]|A|$]]]|J|$]]

In res/values/styles.xml, you will find your AppTheme as below :- 



Change it to :-



by adding "Base" the rendering issue will get resolved.

blocks|key|2681277|text|改变清单中的主题解决了我的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2681278|+<style+name="AppTheme"+parent="Theme.AppCompat.Light.NoActionBar">|code-block|syntax|javascript|2681279|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|$]]

Changing the theme in the manifest solved my problem. 

<pre><code> &lt;style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar"&gt;
</code></pre>

What causes the following error in the layout preview in Android Studio?

<blockquote>
 Rendering Problems The following classes could not be found:
 - android.support.v7.internal.app.WindowDecorActionBar (Fix Build Path, Create Class)
 Tip: Try to build the project. 
</blockquote>

The following classes could not be found: android.support.v7.internal.app.WindowDecorActionBar

Android Studio

Android

Eclipse

Android Studio中的布局预览出现以下错误的原因是什么？渲染问题找不到以下类：- android.support.v7.internal.app.WindowDecorActionBar (修复构建路径，创建类)提示:尝试构建项目。

问找不到以下类：*android.support.v7.internal.app.WindowDecorActionBar
EN

回答 12

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问找不到以下类：*android.support.v7.internal.app.WindowDecorActionBarEN

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问找不到以下类：*android.support.v7.internal.app.WindowDecorActionBar
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