entityMap|blocks|key|8stcg|text|这是一个真正的障碍，直到我意识到我的更改不能传播到所有相关文件...|type|unstyled|depth|inlineStyleRanges|entityRanges|data|7ac20|如果您遇到了布局方面的问题，就像我一样，您可能会发现您需要在|bo502|res+>布局-v17|9f3gr|文件夹。我已经通过中的设计视图进行了更改|82k8p|布局|5nr5l|文件夹中，这些更改似乎会自动传播到|3442e|布局-v17|86ida|，最初。然而，后来的变化却并非如此。|cgm9h|检查你的|6bmmo|res+>布局-v17|4f1r|文件夹，并查看|58sqc|.xml|1ek6n|该文件夹中的文件反映您在中看到的更改|9bpl4|res+>布局|b5mtl|文件夹。你可能会发现他们没有。修复这个问题并重新部署。像我一样，你应该看到新的代码mods。|7h2e6|希望这能有所帮助。^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|16|9|@]|A|@]|B|$]]|$2|C|4|D|6|7|8|17|9|@]|A|@]|B|$]]|$2|E|4|F|6|7|8|18|9|@]|A|@]|B|$]]|$2|G|4|H|6|7|8|19|9|@]|A|@]|B|$]]|$2|I|4|J|6|7|8|1A|9|@]|A|@]|B|$]]|$2|K|4|L|6|7|8|1B|9|@]|A|@]|B|$]]|$2|M|4|N|6|7|8|1C|9|@]|A|@]|B|$]]|$2|O|4|P|6|7|8|1D|9|@]|A|@]|B|$]]|$2|Q|4|R|6|7|8|1E|9|@]|A|@]|B|$]]|$2|S|4|T|6|7|8|1F|9|@]|A|@]|B|$]]|$2|U|4|V|6|7|8|1G|9|@]|A|@]|B|$]]|$2|W|4|X|6|7|8|1H|9|@]|A|@]|B|$]]|$2|Y|4|Z|6|7|8|1I|9|@]|A|@]|B|$]]|$2|10|4|11|6|7|8|1J|9|@]|A|@]|B|$]]|$2|12|4|13|6|7|8|1K|9|@]|A|@]|B|$]]|$2|14|4|15|6|7|8|1L|9|@]|A|@]|B|$]]]]

This was a real stumper until I realized that my changes must not be propagated to all relevant files ... 

If you're having trouble with layouts, as I was, you may find that you need to update the layout in the res > layout-v17 folder. I had made changes via the Design View in the layout folder and those changes seemed to be propagated automatically to layout-v17, initially. However, later changes WEREN'T.

Check your res > layout-v17 folder and see if the .xml files in that folder reflect the changes you are seeing in your res > layout folder. You will probably find that they don't. Fix this and re-deploy. Like me, you should see the new code mods.

Hope this helps.

entityMap|blocks|key|9nm3q|text|在我将buildVersion从23升级后，同样的问题也开始出现。已尝试删除AVDs并重新创建，与Gradle文件同步。什么都没帮上忙。完全重新安装Andriod+Studio已修复此问题。这可能不是解决方案，但这只对我有效。|type|unstyled|depth|inlineStyleRanges|entityRanges|data^0^^$0|$]|1|@$2|3|4|5|6|7|8|C|9|@]|A|@]|B|$]]]]

Same problem started occurring after I have upgraded the buildVersion from 23. Tried removing AVDs and recreating, Synching up with Gradle Files. Nothing helped. Complete reinstallation of Andriod Studio has fixed the problem. This may not be the solution but this only worked for me.

entityMap|blocks|key|fmr96|text|我也有同样的问题。当我搜索它的时候，这个帖子首先出现了。通过不使用Instant+Run功能解决了这个问题(希望如此)。可能不是最好的解决方案，但它目前有效。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|90kj3|只需转到"File+->+Settings+->+Build，Execution，Deployement+->+Instant+Run“并将其禁用即可。有了这个，Android+Studio每次都是从头开始构建的，但这总比不正确地构建要好。|bauvc|Mini+rant:几乎每个版本的Android+Studio都有一个恼人的bug。他们即将发布版本2，但它的测试版仍然有but。我希望他们能在不久的将来稳定IDE。^0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|G|9|@]|A|@]|B|$]]|$2|C|4|D|6|7|8|H|9|@]|A|@]|B|$]]|$2|E|4|F|6|7|8|I|9|@]|A|@]|B|$]]]]

I've got the same problem. This thread popped up first when I've searched for it. Solved it (hoping so) by not using the Instant Run feature. Might not be the best solution but it works for now.

Just go to "File -> Settings -> Build, Execution, Deployement -> Instant Run" and just disable it. With this Android Studio builds from scratch each time but it's better than not building it right.

Mini rant: Almost each version of Android Studio comes with an annoying bug. They're about to release the version 2 but its beta is still buggy. I hope they stabilize the IDE in the near future.

entityMap|blocks|key|fhcp8|text|我也通过不使用Instant+Run功能解决了这个问题。可能不是最好的解决方案，但它目前有效。我使用的是Android+Studio+2.0+beta+2...|type|unstyled|depth|inlineStyleRanges|entityRanges|data^0^^$0|$]|1|@$2|3|4|5|6|7|8|C|9|@]|A|@]|B|$]]]]

Also me solved it by not using the Instant Run feature. Might not be the best solution but it works for now. I'm using Android Studio 2.0 beta 2...

entityMap|0|type|IMAGE|mutability|IMMUTABLE|data|imageUrl|https://ask.qcloudimg.com/http-save/actteam/ac838a6aaba51e3b8faa619a90406eef.png|imageAlt|1|https://ask.qcloudimg.com/http-save/actteam/5cfa92c3bcdb225e5172437133690a50.png|blocks|key|739op|text|我也有同样的问题，使用Android+Studio+2.0.0，通过|unstyled|depth|inlineStyleRanges|entityRanges|4297j|重建|b32kj|我的项目。|5g7d7|​|cjm4j|eolmk|?|atomic|offset|length|dk505|31p9m|bstfq|或通过|a9gfp|清理并重新运行|b8o0a|31htc|b6qbg|2a6gr|e9pfn^0|0|0|0|0|0|0|1|0|0|0|0|0|0|0|0|0|1|1|0|0^^$0|$1|$2|3|4|5|6|$7|8|9|-4]]|A|$2|3|4|5|6|$7|B|9|-4]]]|C|@$D|E|F|G|2|H|I|18|J|@]|K|@]|6|$]]|$D|L|F|M|2|H|I|19|J|@]|K|@]|6|$]]|$D|N|F|O|2|H|I|1A|J|@]|K|@]|6|$]]|$D|P|F|Q|2|H|I|1B|J|@]|K|@]|6|$]]|$D|R|F|-4|2|H|I|1C|J|@]|K|@]|6|$]]|$D|S|F|T|2|U|I|1D|J|@]|K|@$V|1E|W|1F|D|1G]]|6|$]]|$D|X|F|-4|2|H|I|1H|J|@]|K|@]|6|$]]|$D|Y|F|Q|2|H|I|1I|J|@]|K|@]|6|$]]|$D|Z|F|10|2|H|I|1J|J|@]|K|@]|6|$]]|$D|11|F|12|2|H|I|1K|J|@]|K|@]|6|$]]|$D|13|F|Q|2|H|I|1L|J|@]|K|@]|6|$]]|$D|14|F|-4|2|H|I|1M|J|@]|K|@]|6|$]]|$D|15|F|T|2|U|I|1N|J|@]|K|@$V|1O|W|1P|D|1Q]]|6|$]]|$D|16|F|-4|2|H|I|1R|J|@]|K|@]|6|$]]|$D|17|F|Q|2|H|I|1S|J|@]|K|@]|6|$]]]]

I had the same Problem, using Android Studio 2.0.0, solved it by rebuilding my Project.

<code>Build &gt; Rebuild Project</code>

<a href="https://i.stack.imgur.com/jBwe1.png"><img src="https://i.stack.imgur.com/jBwe1.png" alt="GUI Picture"></a>

or by Clean and Rerun

<code>Run &gt; Clean and Rerun</code>

<a href="https://i.stack.imgur.com/X0Jqc.png"><img src="https://i.stack.imgur.com/X0Jqc.png" alt="Clean and Rerun"></a>

entityMap|blocks|key|29vp3|text|现在，我通过关闭应用程序并再次运行解决了这个问题。它就像一个护身符。我还不确定这是否是巧合，但我想它值得一试。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5st15|我真的想知道它是否也适用于其他一些人。让我们试一试，让我知道。^0|0^^$0|$]|1|@$2|3|4|5|6|7|8|E|9|@]|A|@]|B|$]]|$2|C|4|D|6|7|8|F|9|@]|A|@]|B|$]]]]

For now I solved the issue by closing the app and run again. It worked like a charm. Not sure yet if it is a coincidence, but i guess it worths give it a try. 

I really wonder if it works some other people too. Lets give it a try and let me know.

entityMap|blocks|key|1ee42|text|对我起作用的事情是将一些坏的xml添加到我的一个布局xml文件中，尝试构建并得到一个错误，然后恢复更改并再次调试。不是很漂亮，但很快。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|bi76l|另一件似乎在大多数情况下都有效的事情是:拔下并重新连接你的开发电话/设备。这似乎会强制重新安装，至少在我的Linux机器上是这样。^0|0^^$0|$]|1|@$2|3|4|5|6|7|8|E|9|@]|A|@]|B|$]]|$2|C|4|D|6|7|8|F|9|@]|A|@]|B|$]]]]

The thing that worked for me was to add some bad xml to one of my layout xml files, try to build and get an error, then revert the change and debug again. Not pretty, but pretty fast.

Another thing that seems to work most of the time: unplug and reconnect your development phone/device. This seems to force a reinstall, at least on my Linux machine.

entityMap|0|type|IMAGE|mutability|IMMUTABLE|data|imageUrl|https://ask.qcloudimg.com/http-save/actteam/9924f194b50253d83fdd607b96879004.png|imageAlt|blocks|key|83o2p|text|我喜欢即时运行功能，我不喜欢因为这个bug而禁用它。不是一种解决方案，而是一种更好的解决方案|unstyled|depth|inlineStyleRanges|entityRanges|3qk7v|解决方法|b2pqa|我更喜欢这样：|6uqko|按“最近的应用”|f22or|3ihil|只需从列表中关闭我的应用程序|4gf0n|再次运行应用程序|d0acr|这需要|c7cbu|比清理或重建所需的时间更少|2e4jq|..。|psdd|更新|1dng8|重新运行应用程序也可以：|3mq08|​|20fkc|pr6f|?|atomic|offset|length|fh60j|6mcnn^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|1|0|0|0^^$0|$1|$2|3|4|5|6|$7|8|9|-4]]]|A|@$B|C|D|E|2|F|G|1E|H|@]|I|@]|6|$]]|$B|J|D|K|2|F|G|1F|H|@]|I|@]|6|$]]|$B|L|D|M|2|F|G|1G|H|@]|I|@]|6|$]]|$B|N|D|O|2|F|G|1H|H|@]|I|@]|6|$]]|$B|P|D|-4|2|F|G|1I|H|@]|I|@]|6|$]]|$B|Q|D|R|2|F|G|1J|H|@]|I|@]|6|$]]|$B|S|D|T|2|F|G|1K|H|@]|I|@]|6|$]]|$B|U|D|V|2|F|G|1L|H|@]|I|@]|6|$]]|$B|W|D|X|2|F|G|1M|H|@]|I|@]|6|$]]|$B|Y|D|Z|2|F|G|1N|H|@]|I|@]|6|$]]|$B|10|D|11|2|F|G|1O|H|@]|I|@]|6|$]]|$B|12|D|13|2|F|G|1P|H|@]|I|@]|6|$]]|$B|14|D|15|2|F|G|1Q|H|@]|I|@]|6|$]]|$B|16|D|-4|2|F|G|1R|H|@]|I|@]|6|$]]|$B|17|D|18|2|19|G|1S|H|@]|I|@$1A|1T|1B|1U|B|1V]]|6|$]]|$B|1C|D|-4|2|F|G|1W|H|@]|I|@]|6|$]]|$B|1D|D|15|2|F|G|1X|H|@]|I|@]|6|$]]]]

I Like Instant Run Feature and I don't like to disable it just because of this bug.
Not a solution but as a better workaround I'd prefer to: 

<ol>
<li>Press "Recent Apps" </li>
<li>Simply close my app from the list</li>
<li>Run the app again</li>
</ol>

This takes less time than Clean or Rebuild.

UPDATE

Rerun the app also works:

<a href="https://i.stack.imgur.com/VL3MY.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/VL3MY.png" alt="enter image description here"></a>

entityMap|blocks|key|ccqnf|text|我有同样的问题，我取消选中即时运行，我也尝试了“清理并运行选项”，但它不起作用。我试着gradle同步它，但我仍然有问题。只有当我通过删除生成文件夹完全重新生成它时，它才会得到解决。|type|unstyled|depth|inlineStyleRanges|entityRanges|data^0^^$0|$]|1|@$2|3|4|5|6|7|8|C|9|@]|A|@]|B|$]]]]

I have the same issue, I unchecked instant Run and also i tried "clean and run option" but its not working. I tried to gradle sync it, but still i had the issue. Its gets resolved only if i rebuild it completely by deleting build folder.

entityMap|blocks|key|5e31k|text|对我来说，即时运行是一场噩梦，2-5分钟的构建时间，而且令人抓狂的是，最近的更改并没有包括在构建中。我强烈建议禁用即时运行，并将这一行添加到gradle.properties中：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|72mil|android.enableBuildCache=true|code-block|syntax|javascript|24q90|对于大型项目，第一次构建通常需要一些时间(1-2分钟)，但在缓存之后，后续构建通常是lightnight+fast+(<10秒)。|eup3g|明白了|b0n39|来自reddit用户的提示/u/QuestionsEverythang|9n59e|这让我省去了很多使用instant+run的麻烦！^0|0|0|0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|P|9|@]|A|@]|B|$]]|$2|C|4|D|6|E|8|Q|9|@]|A|@]|B|$F|G]]|$2|H|4|I|6|7|8|R|9|@]|A|@]|B|$]]|$2|J|4|K|6|7|8|S|9|@]|A|@]|B|$]]|$2|L|4|M|6|7|8|T|9|@]|A|@]|B|$]]|$2|N|4|O|6|7|8|U|9|@]|A|@]|B|$]]]]

For me instant run was a nightmare, 2-5 minute build times, and maddeningly often, recent changes were not included in builds. I highly recommend disabling instant run and adding this line to gradle.properties:

<pre><code>android.enableBuildCache=true
</code></pre>

First build often takes some time for large projects (1-2mins), but after it's cached subsequent builds are usually lightnight fast (&lt;10secs).

Got this <a href="https://www.reddit.com/r/androiddev/comments/5fl8jg/android_studio_instant_run_often_not_including/" rel="nofollow noreferrer">tip from reddit user /u/QuestionsEverythang</a> which has saved me SO much hassling around with instant run!

entityMap|blocks|key|bvhge|text|确保您没有替代布局。如果这样做，您可能会更改一个并部署另一个。|type|unstyled|depth|inlineStyleRanges|entityRanges|data^0^^$0|$]|1|@$2|3|4|5|6|7|8|C|9|@]|A|@]|B|$]]]]

Make sure you do not have an alternative layout. If you do, you might be changing one and deploying another.

entityMap|blocks|key|636jp|text|通过将调试断点放置到添加的新行，可以了解代码是否已部署。如果断点上有一个十字，这意味着它没有被部署。您需要清理并重新构建项目。|type|unstyled|depth|inlineStyleRanges|entityRanges|data^0^^$0|$]|1|@$2|3|4|5|6|7|8|C|9|@]|A|@]|B|$]]]]

You can understand whether the code is deployed or not by putting a debug breakpoint to the new line that you added. If there is a cross on the breakpoint, this means it is not deployed. You need to clean and rebuild the project.

entityMap|0|type|IMAGE|mutability|IMMUTABLE|data|imageUrl|https://ask.qcloudimg.com/http-save/actteam/a0d3ae64dde22a3fc4f414e796f27bee.png|imageAlt|1|https://ask.qcloudimg.com/http-save/actteam/a68c8b6c5a0742b4271d6a2fd9df17a0.png|blocks|key|6gbvp|text|EDIT2+(2020-03-09)|unstyled|depth|inlineStyleRanges|entityRanges|70r51|如果您在gradle-wrapper.properties中使用gradle+6.0，您可能也会遇到类似的情况，因为|689dd|这个bug|447mv|在6.0版本中。请尝试6.0.1。|c3vks|昨天(2018-03-27)+Android+Studio发布了从3.0.1到3.1的官方更新，看起来很多人(包括我)又开始遇到这个问题了。|551b5|归功于|2jsuc|#5这里的评论|7diho|，下面是它是如何解决的：|640k5|在Android+Studio中，转到|8ag2l|>|6hpbf|..。|8al70|在|67kcm|，如果您找不到|8usps|，如下图所示：|2gqng|​|ena4t|9p561|?|atomic|offset|length|et4rv|f9ouc|4aatv|添加|4nqtg|然后离开|3jane|空的。|30o8m|ejr51|3m8v9|3bu2c|avkvj|5bdvm|警告|53i6e|：我不知道这些动作是什么意思，也不知道会不会有副作用。如果有人能给我更多的解释，我将不胜感激！|cg1gh|编辑|ej6q5|感谢@ChristopherSmit引用，|7u64f|此页|1lroa|提到|ekmpu|意思是“编译项目并运行Gradle”。|f45oj|一开始，我猜这可能会使|abqn4|即使没有更改代码，也需要更长的时间；但是在测试之后，如果没有更改代码，第二次仍然要快得多。|ca089|考虑到这是使用AS3.1创建新项目的默认选项，我认为这种配置是非常安全的。^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|1|0|0|0|0|0|0|0|0|0|0|1|1|0|0|0|0|0|0|0|0|0|0|0|0^^$0|$1|$2|3|4|5|6|$7|8|9|-4]]|A|$2|3|4|5|6|$7|B|9|-4]]]|C|@$D|E|F|G|2|H|I|2G|J|@]|K|@]|6|$]]|$D|L|F|M|2|H|I|2H|J|@]|K|@]|6|$]]|$D|N|F|O|2|H|I|2I|J|@]|K|@]|6|$]]|$D|P|F|Q|2|H|I|2J|J|@]|K|@]|6|$]]|$D|R|F|S|2|H|I|2K|J|@]|K|@]|6|$]]|$D|T|F|U|2|H|I|2L|J|@]|K|@]|6|$]]|$D|V|F|W|2|H|I|2M|J|@]|K|@]|6|$]]|$D|X|F|Y|2|H|I|2N|J|@]|K|@]|6|$]]|$D|Z|F|10|2|H|I|2O|J|@]|K|@]|6|$]]|$D|11|F|12|2|H|I|2P|J|@]|K|@]|6|$]]|$D|13|F|14|2|H|I|2Q|J|@]|K|@]|6|$]]|$D|15|F|16|2|H|I|2R|J|@]|K|@]|6|$]]|$D|17|F|18|2|H|I|2S|J|@]|K|@]|6|$]]|$D|19|F|1A|2|H|I|2T|J|@]|K|@]|6|$]]|$D|1B|F|1C|2|H|I|2U|J|@]|K|@]|6|$]]|$D|1D|F|-4|2|H|I|2V|J|@]|K|@]|6|$]]|$D|1E|F|1F|2|1G|I|2W|J|@]|K|@$1H|2X|1I|2Y|D|2Z]]|6|$]]|$D|1J|F|-4|2|H|I|30|J|@]|K|@]|6|$]]|$D|1K|F|1C|2|H|I|31|J|@]|K|@]|6|$]]|$D|1L|F|1M|2|H|I|32|J|@]|K|@]|6|$]]|$D|1N|F|1O|2|H|I|33|J|@]|K|@]|6|$]]|$D|1P|F|1Q|2|H|I|34|J|@]|K|@]|6|$]]|$D|1R|F|1C|2|H|I|35|J|@]|K|@]|6|$]]|$D|1S|F|-4|2|H|I|36|J|@]|K|@]|6|$]]|$D|1T|F|1F|2|1G|I|37|J|@]|K|@$1H|38|1I|39|D|3A]]|6|$]]|$D|1U|F|-4|2|H|I|3B|J|@]|K|@]|6|$]]|$D|1V|F|1C|2|H|I|3C|J|@]|K|@]|6|$]]|$D|1W|F|1X|2|H|I|3D|J|@]|K|@]|6|$]]|$D|1Y|F|1Z|2|H|I|3E|J|@]|K|@]|6|$]]|$D|20|F|21|2|H|I|3F|J|@]|K|@]|6|$]]|$D|22|F|23|2|H|I|3G|J|@]|K|@]|6|$]]|$D|24|F|25|2|H|I|3H|J|@]|K|@]|6|$]]|$D|26|F|27|2|H|I|3I|J|@]|K|@]|6|$]]|$D|28|F|29|2|H|I|3J|J|@]|K|@]|6|$]]|$D|2A|F|2B|2|H|I|3K|J|@]|K|@]|6|$]]|$D|2C|F|2D|2|H|I|3L|J|@]|K|@]|6|$]]|$D|2E|F|2F|2|H|I|3M|J|@]|K|@]|6|$]]]]

<h2>EDIT2 (2020-03-09)</h2>
If you are using gradle 6.0 in your gradle-wrapper.properties, you may also encounter a similar situation because there is <a href="https://github.com/gradle/gradle/issues/11330" rel="noreferrer">this bug</a> in 6.0 version. Try 6.0.1 instead.
<hr />
Yesterday (2018-03-27) Android Studio published an official update from 3.0.1 to 3.1, and it looks like a lot of people (including me) start running into this issue again.
Credit to <a href="https://issuetracker.google.com/issues/76407660#comment5" rel="noreferrer">#5 comment here</a>, below is how it solved:
In Android Studio, go to <code>Run</code> &gt; <code>Edit Configuration</code>.
Under <code>Before launch:</code>, if you cannot find <code>Gradle-aware Make</code>, just like below:
<a href="https://i.stack.imgur.com/6T8c3.png" rel="noreferrer"><img src="https://i.stack.imgur.com/6T8c3.png" alt="enter image description here" /></a>
Add <code>Gradle-aware Make</code> and leaving <code>Task</code> empty.
<a href="https://i.stack.imgur.com/Nh99n.png" rel="noreferrer"><img src="https://i.stack.imgur.com/Nh99n.png" alt="enter image description here" /></a>
Warning: I don't know what these action means, and whether it will cause any side-effects. Appreciate if someone can give more explanation on it!
EDIT
Thanks to @ChristopherSmit referenced, <a href="https://developer.android.com/studio/run/rundebugconfig.html#definingbefore" rel="noreferrer">this page</a> mentions that <code>Gradle-aware make</code> means &quot;Compile the project and run Gradle&quot;. 
At first I guess this may make <code>Run</code>s take longer time even if no code has been changed; but after testing, the second time is still much faster if no code has been changed. 
Given that fact that this is a default option if you create a new project using AS 3.1, I think this configuration is pretty safe.

entityMap|0|type|IMAGE|mutability|IMMUTABLE|data|imageUrl|https://ask.qcloudimg.com/http-save/actteam/a31eb4ec942ea109fd90de55a757beca.png|imageAlt|blocks|key|e0dm2|text|在Android+Studio+3.6.3中，如果即时运行失败，您可以启用自动重启。|unstyled|depth|inlineStyleRanges|entityRanges|di5s2|只需转到File+%7C+Settings+%7C+Build，Execution，Deployment+%7C+Deployment并选中复选框。|esvkb|​|fph88|akbqi|?|atomic|offset|length|4bsku|ee0qs^0|0|0|0|0|0|1|0|0|0^^$0|$1|$2|3|4|5|6|$7|8|9|-4]]]|A|@$B|C|D|E|2|F|G|V|H|@]|I|@]|6|$]]|$B|J|D|K|2|F|G|W|H|@]|I|@]|6|$]]|$B|L|D|M|2|F|G|X|H|@]|I|@]|6|$]]|$B|N|D|-4|2|F|G|Y|H|@]|I|@]|6|$]]|$B|O|D|P|2|Q|G|Z|H|@]|I|@$R|10|S|11|B|12]]|6|$]]|$B|T|D|-4|2|F|G|13|H|@]|I|@]|6|$]]|$B|U|D|M|2|F|G|14|H|@]|I|@]|6|$]]]]

In Android Studio 3.6.3 you can enable auto restart if the instant run fails.

Just go to File | Settings | Build, Execution, Deployment | Deployment and check the checkboxes. 

<a href="https://i.stack.imgur.com/oQoZq.png" rel="noreferrer"><img src="https://i.stack.imgur.com/oQoZq.png" alt="Settings"></a>

entityMap|blocks|key|2aehc|text|我遇到了同样的问题，我尝试了所有的方法，比如清理和重建，gradle-sync，甚至卸载和安装应用程序，但都没有起作用。其他设备都工作得很好，但在我的手机上，这个问题仍然存在。然后我意识到我意外地复制了一个布局文件|type|unstyled|depth|inlineStyleRanges|entityRanges|data|dpove|并在该文件中进行更改，这就是为什么设计没有更新。所以我只是删除了重复的布局。|601tj|问题就解决了。因此，请确保您没有在没有意识到的情况下创建了这些文件中的任何一个。^0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|G|9|@]|A|@]|B|$]]|$2|C|4|D|6|7|8|H|9|@]|A|@]|B|$]]|$2|E|4|F|6|7|8|I|9|@]|A|@]|B|$]]]]

I had the same issue , I tried everything like clean and rebuild , gradle-sync , even uninstalling and installing the app but noting worked. The other devices were working fine but in my mobile the problem was still going on.
Then I realised that I accidentally a duplicate layout file <code>layout-v26</code> and was doing change in that file that why the design was not updating . So I just deleted the duplicate layout from the <code>Project&gt;app&gt;main&gt;res&gt;layout-v26</code> and the problem was solved . So please make sure that you have not created any of these files without realising.

entityMap|0|type|IMAGE|mutability|IMMUTABLE|data|imageUrl|https://ask.qcloudimg.com/http-save/actteam/bdeb98ea24ded0dd3264129f01327867.png|imageAlt|1|https://ask.qcloudimg.com/http-save/actteam/c2055e94bf01b2279a98223619d3d19b.png|blocks|key|emimp|text|请看下面的截图。下划线是Instant+Run。在Android+Studio+4.1.1中工作得更好|unstyled|depth|inlineStyleRanges|entityRanges|en8jv|下面的圆圈是应用更改。|t71p|​|f505v|30hpl|?|atomic|offset|length|6ajb3|bmucn|d4343|Android+Studio4甚至可以在不运行应用程序的情况下渲染视图。更改任何内容并查看结果。对自定义视图开发人员非常有用。|1rdlg|16pav|2ei9e|aijjf|2rre3^0|0|0|0|0|0|1|0|0|0|0|0|0|0|0|1|1|0|0^^$0|$1|$2|3|4|5|6|$7|8|9|-4]]|A|$2|3|4|5|6|$7|B|9|-4]]]|C|@$D|E|F|G|2|H|I|14|J|@]|K|@]|6|$]]|$D|L|F|M|2|H|I|15|J|@]|K|@]|6|$]]|$D|N|F|O|2|H|I|16|J|@]|K|@]|6|$]]|$D|P|F|-4|2|H|I|17|J|@]|K|@]|6|$]]|$D|Q|F|R|2|S|I|18|J|@]|K|@$T|19|U|1A|D|1B]]|6|$]]|$D|V|F|-4|2|H|I|1C|J|@]|K|@]|6|$]]|$D|W|F|O|2|H|I|1D|J|@]|K|@]|6|$]]|$D|X|F|Y|2|H|I|1E|J|@]|K|@]|6|$]]|$D|Z|F|O|2|H|I|1F|J|@]|K|@]|6|$]]|$D|10|F|-4|2|H|I|1G|J|@]|K|@]|6|$]]|$D|11|F|R|2|S|I|1H|J|@]|K|@$T|1I|U|1J|D|1K]]|6|$]]|$D|12|F|-4|2|H|I|1L|J|@]|K|@]|6|$]]|$D|13|F|O|2|H|I|1M|J|@]|K|@]|6|$]]]]

See the screenshot below. The underline is Instant Run. Working better in Android Studio 4.1.1
The undercircle is Apply Changes.
<a href="https://i.stack.imgur.com/Q9ee5.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Q9ee5.png" alt="enter image description here" /></a>
<hr />
The Android Studio 4 even renders a view without running the app. Change anything and see the results. Very useful for custom view developers.
<a href="https://i.stack.imgur.com/3Av8Y.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3Av8Y.png" alt="enter image description here" /></a>

entityMap|blocks|key|1b111|text|对我来说，卸载和重新安装应用程序是行不通的。禁用即时运行也是如此。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|350cb|通过转到|daav|，部署到应用程序的新更改。^0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|G|9|@]|A|@]|B|$]]|$2|C|4|D|6|7|8|H|9|@]|A|@]|B|$]]|$2|E|4|F|6|7|8|I|9|@]|A|@]|B|$]]]]

For me, uninstalling, reinstalling the app doesn't work. The same for disabling instant run.
By going to <code>device settings &gt;&gt; Apps &gt;&gt; myApp &gt;&gt; Clear caches &amp; clear data</code>, the new changes deployed to the app.

entityMap|blocks|key|4smsk|text|即使你没有更新任何东西，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5o9hc|这可能会突然开始：|fdc2e|代码更改不会反映在应用程序上/不会生效。|5kfl2|其中一个对我有效的步骤是：|781kl|"File+->+Invalidate+Caches+/+Restart+..."|code-block|syntax|javascript|5tpmi|​|3csq8|成功了。|coa0b|这可能是机器/studio间歇性重新启动/关闭(由于硬件问题/断电)的结果。^0|0|0|0|0|0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|T|9|@]|A|@]|B|$]]|$2|C|4|D|6|7|8|U|9|@]|A|@]|B|$]]|$2|E|4|F|6|7|8|V|9|@]|A|@]|B|$]]|$2|G|4|H|6|7|8|W|9|@]|A|@]|B|$]]|$2|I|4|J|6|K|8|X|9|@]|A|@]|B|$L|M]]|$2|N|4|O|6|7|8|Y|9|@]|A|@]|B|$]]|$2|P|4|Q|6|7|8|Z|9|@]|A|@]|B|$]]|$2|R|4|S|6|7|8|10|9|@]|A|@]|B|$]]]]

Even if you didn't update anything, 
this can suddenly start: 
Code changes don't reflect on the app / don't take effect. 
One of the step that worked for me is:
<pre><code>&quot;File -&gt; Invalidate Caches / Restart ...&quot;
</code></pre>
 
made it.
This can bee the result of machine/studio intermittently rebooting/closing (because of hardware issues / electricity down).

Sometimes this scenario occurs when developing. I would make a change in my source code, hit save all and then run but the change wouldn't be apparently not reflected in the app -(I'm using a device for testing). I can even uninstall the app on my device, and hit run again and the newly installed app still hasn't reflected the change in the source code. When this happens I have to edit the source, hit run and maybe then a new version with the changes I expected will be on the device. 

I also tried the solution here, but it doesn't seem to work often. 

<a href="https://stackoverflow.com/questions/28183822/android-studio-deploys-my-app-without-new-changes">Android Studio - Deploys my app without new changes</a>

Android Studio not deploying changes to app

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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 有时在开发时会出现这种情况。我会在源代码中进行更改，单击“全部保存”，然后运行 更改显然不会反映在应用程序中 -(我正在使用设备进行测试)。我甚至可以在我的设备上卸载应用程序，然后再次点击run，新安装的应用程序仍然没有反映源代码中的更改。当这种情况发生时，我必须编辑源代码，点击run，然后可能会在设备上出现一个具有...

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