Android Studio - XML Editor autocomplete not working with support libraries

AndroidAndroid StudioAutocomplete

Android Problem Overview

I just started using the new android.support.design library. When using any of the widgets inside the XML editor I stop getting the XML autocomplete suggestions!

For example,

<android.support.design.widget.CoordinatorLayout
    android:id="@+id/header_root"
    android:layout_width="match_parent"
    android:layout_height="200dp">

    <ImageView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@color/primary_dark" />

    <android.support.design.widget.FloatingActionButton
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|right"
        android:src="@drawable/ic_action_add"
        android:layout_marginLeft="16dp"
        android:layout_marginRight="16dp"
        android:layout_marginTop="56dp"
        app:fabSize="normal"
        app:layout_anchor="@id/header_root"
        app:layout_anchorGravity="bottom|right|end" />

</android.support.design.widget.CoordinatorLayout>

None of the tags will show the autocomplete popup, like when I start typing "android:i" no popup appears, the only suggestion I get is shown in the following picture.

enter image description here

I have tried cleaning my project, restarting the pc, restarting Android Studio.. nothing is working!

Android Solutions

Solution 1 - Android

If NONE of the above answers worked, ...

Just navigate to your android studio installation directory, i.e,

yourDrive:/.AndroidStudio3.3/system

and DELETE THE CACHE FOLDER ( first close android studio, if its running ).

Then start Android Studio again. Done.

P.S I am using android studio 4.0

Solution 2 - Android

I have tried a lot of things (restart Android Studio, PC, Invalidate Caches, Power Saver mode,...).

Finally, deleting the .idea folder and all .iml files from the project, restarting Android Studio, and rebuilding Gradle did the trick. Autocomplete in XML support library is working again.

Checking out files from Version Control or copying all the source files in a new project would do the trick as well.

Solution 3 - Android

I got my autocomplete suggestions back by invalidating Caches and restarting.

File -> Invalidate Caches / Restart... -> Select Invalidate and Restart

Solution 4 - Android

This same problem appeared in version 3.2. . The solution for that is

Close Android Studio
Go to C:\Users\UserName\.android and rename the build-cache folder to build-cache.bak

Go to C:\Users\UserName\.AndroidStudio3.2\system and rename these folders

caches to caches.bak

compiler to compiler.bak

compile-server to compile-server.bak

conversion to conversion.bak

external_build_system to external_build_system.bak

frameworks to frameworks.bak

gradle to gradle.bak

resource_folder_cache to resource_folder_cache.bak

Open the Android Studio and open your project again.

Solution 5 - Android

If NONE of the above worked ...

Just navigate to your android studio installation directory, i.e,

yourDrive:/.AndroidStudio3.4/system

first close android studio, if its running.

then delete the cache folder in system

Then start Android Studio again. Done.

i am using android studio 3.4

Solution 6 - Android

The Santanu Sur answer works for me! But in Windows I found these folders in %USERNAME%/.AndroidStudio3.4 or %USERNAME%/.AndroidStudio3.3

I deleted these two folders and it worked well finally.

Solution 7 - Android

A few years too late, but I wanted to submit an answer to this that I figured out and worked for me. It was very quick and didnt require a lot of reconfiguration as some of other answers on here had, so I thought I'd add it.

Solution

Comment the gradle dependencies for xml attributes, sync the project, and then un-comment them and sync it again. For me, resyncing these three with and then without the comments was enough to get them to start coming up again.

//implementation 'com.android.support:appcompat-v7:27.1.1'
//implementation 'com.android.support.constraint:constraint-layout:1.1.3'
//implementation 'com.android.support:design:27.1.1'

And don't worry if your build fails after the first step, it should if you already have any of those attributes in your project. Another note, the attributes that I had previously put in (without the autocomplete before the resync) needed to be re-inputted for some reason.

Solution 8 - Android

I got in a situation where only the EditText tag was broken. I've deleted the .idea folder and all .iml, invalidated the cache and restarted... What actually worked was to erase the tag and type it again. Really Odd.

Solution 9 - Android

Deleting Library/Application Support/AndroidStudio* folder and Invalidate Cache after that helped me. All other options didn't work.

Solution 10 - Android

I try to downgrade the "Compile SDK Version" from 29 to 28 and it's works good

Solution 11 - Android

In my case Code Completion suggestions were not appearing because Gradle dependency was missing in my application's module.

I was using android.support.design.widget.TabLayout in my XML layout, but I have not added Design Support Library compile 'com.android.support:design:25.3.1' Gradle dependency in my application module.

Solution 12 - Android

If you're having this problem in November 2018 with Android Studio 3.2.1, you should try downgrading it to 3.1.4.

With 3.2.1 i tried every of this answers and didn't work, but after i downgraded to 3.1.4 and did the Invalidate Caches / Restart it worked fine.

Solution 13 - Android

I tried with Invalid caches/restart option but it didn't work for me. For Android Studio 3> versions check following first:

compileSdkVersion
targetSdkVersion
buildToolsVersion

Set these 3 to the latest version and then try to sync the project and clean, ReBuild once. It will work and show the XML editor autocomplete options.

Solution 14 - Android

Delete the complete folder ` of the android studio and then restarting it. Solve the problem

> driveLocation:/.AndroidStudio3.3

.AndroidStudio3.3 may be different in your case

Solution 15 - Android

I too faced this issue and this was only happening on an imported module class. Tried everything like deleting .idea folder, power saver mode, invalidate cache and restart, etc.

Finally updating compileSdkVersion and buildToolsVersion of the module to match with the app module fixed the issue.

In my case I was using:

  compileSdkVersion 29
  buildToolsVersion '29.0.3'

Solution 16 - Android

One possibility is to check power mode in the android studio. Go to File > Power mode and check it's on or off. If it is on, You also will not get any suggestions. To get suggestions, It must be off.

If it doesn't work for you then you should reset your Android studio which will set the default configuration for you. For that, find out .AndroidStudioBeta or .AndroidStudio folder and delete those and restart the android studio. Generally, you will get this folder into users\[user name]\.AndroidStudio3.3.

Let me know if it helps you then. Happy coding..!

Solution 17 - Android

Solved by deleting '.androidStudioPreview1.X' in my home folder.

Solution 18 - Android

I too got in a situation where only the EditText tag was broken. The solution was found in Setting > Editor >General > Auto Import where Edit Text was listed as excluded from auto completion. Remove that by select and click Minus sign.

Solution 19 - Android

File -> Invalidate Caches / Restart... -> Select Invalidate and Restart

and turn of power save mode it does works

Solution 20 - Android

The best option is to make a zip folder of the project and change its path.(Relocate this project than open it). This will do the needful.

Solution 21 - Android

Check 5 ways:

  1. Restart Android Studio

  2. File -> Invalidate Caches / Restart... -> Select Invalidate and Restart

  3. File -> turn of power save mode and restart Android Studio

  4. Delete .idea folder. Search for *.iml files and delete all those and use way number 2

Solution 22 - Android

Change to an older version in build.gradle(Module: app) -Make sure is the one under Gradle Script and it is NOT build.gradle(Project: yourproject). After getting XML autocomplete suggestions change to the current version.

Solution 23 - Android

My issue was that I tried to autocomplete on an xml layout file inside res/xml. Autocomplete does not work there for layout files. Moving the xml file to res/layout made autocomplete work again.

Solution 24 - Android

I just tried waiting for 10 seconds and the auto-complete suggestions appeared(Using Android Studio 4.2) , it seems that the xml just takes some time to resolve them.
And no my PC is not slow.

Solution 25 - Android

I share my answer for Android studio 4.2: I had to delete folder C:\Users\Username\.gradle\caches

Solution 26 - Android

just go to gradle-wrapper.properties and update version gradle...zip

my version is gradle-6.7.1-all.zip

and restart android studio

Solution 27 - Android

Invalidate Caches / Restart worked for me.

==> Go to File Menu on top left corner of android studio ==> Select Invalidate Caches / Restart

Solution 28 - Android

Tried everything like deleting .idea folder, power saver mode, deleting cache folder under user/.android , invalidate cache and restart, etc nothing worked.

Setting compileSdkVersion 31 (latest till date) worked for me.

Solution 29 - Android

I have this issue when doing my project. I tried everything: Delete every folders if I can; Un-install; Reset to default (I actually search SO for this); Invalidate Cache; Create a very new project for test; Etc... All of those have no resolve problem

Now I have a final way to do: use Intellji instead of Android Studio and I am very happy now. This is advice for anyone who suffered by this issue

Solution 30 - Android

What worked for me was renaming $USERDIR/.AndroidStudio3.3/system folder and restarting AS.

Categories
Recommended Android Solutions
Recommended Android Studio Solutions
Recommended Autocomplete Solutions

Previous Solution:

How to update just one library from the Cartfile with Carthage?

Carthage

Next Solution:

Remove "Using default security password" on Spring Boot

JavaSpringSpring BootSpring Security

Attributions

All content for this solution is sourced from the original question on Stackoverflow.

The content on this page is licensed under the Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license.

Content TypeOriginal AuthorOriginal Content on Stackoverflow
QuestionNick HView Question on Stackoverflow
Solution 1 - AndroidSantanu SurView Answer on Stackoverflow
Solution 2 - AndroidMarkoView Answer on Stackoverflow
Solution 3 - Androiduser4989692View Answer on Stackoverflow
Solution 4 - AndroidDHRUV GAJWAView Answer on Stackoverflow
Solution 5 - Androidgourav singhalView Answer on Stackoverflow
Solution 6 - AndroidjordizView Answer on Stackoverflow
Solution 7 - AndroidAndrea deCandiaView Answer on Stackoverflow
Solution 8 - AndroidJulio RodriguesView Answer on Stackoverflow
Solution 9 - AndroidjauserView Answer on Stackoverflow
Solution 10 - Androidfahrizal89View Answer on Stackoverflow
Solution 11 - AndroidSohailView Answer on Stackoverflow
Solution 12 - AndroidTincho825View Answer on Stackoverflow
Solution 13 - Androidamit pandyaView Answer on Stackoverflow
Solution 14 - AndroidSuraj BahadurView Answer on Stackoverflow
Solution 15 - AndroidRishabh SagarView Answer on Stackoverflow
Solution 16 - AndroidPranav PView Answer on Stackoverflow
Solution 17 - AndroidpoopaouView Answer on Stackoverflow
Solution 18 - AndroidnishaView Answer on Stackoverflow
Solution 19 - AndroidlllllllllllllllView Answer on Stackoverflow
Solution 20 - AndroidRohit LalwaniView Answer on Stackoverflow
Solution 21 - AndroidRasoul MiriView Answer on Stackoverflow
Solution 22 - AndroidAnkit GuptaView Answer on Stackoverflow
Solution 23 - AndroidKrøllebølleView Answer on Stackoverflow
Solution 24 - AndroidGauravView Answer on Stackoverflow
Solution 25 - Android4bottiglieView Answer on Stackoverflow
Solution 26 - AndroidsaeedmptView Answer on Stackoverflow
Solution 27 - AndroidHiren KuvadiyaView Answer on Stackoverflow
Solution 28 - AndroidshabyView Answer on Stackoverflow
Solution 29 - AndroidAliasView Answer on Stackoverflow
Solution 30 - AndroidsmkView Answer on Stackoverflow