Null in API version Android Studio preview - android-studio

I updated from Android Studio 2.3 to 3.0 and now none of the previews on the XML editors are shown.
I can see a null in the top bar in the API level selector and it does not give me any option to pick
Any possible solution for that?
I tried Invalidate cache and restart but it does not seem to help.

Just press "Sync Project with gradle" and enjoy :)
Sync icon is present in the toolbar

I resolve this isuue by Syncing Project with gradle files.
In android studio from top toolbar.
choose first File option and click option Sync Project with gradle files.
thanks.

choose first File option and click option Sync Project with gradle files. work for me

Related

"Generate Signed APK" option is not display in android studio Build menu

"Generate Signed APK" option is not display in android studio Build menu,
What is the problem or something I missed to install?? Thanks
When I click "Build APK(s)" , the android studio is no response
For me, clicking File > Sync Project with Gradle File System solved it for me.
Firstly check with clean > rebuild project and see that 'app' is not having "red X" icon.
Check your gradle that you had not configured it with release config yet.
There must be a signing config in gradle file
Follow Below Steps for Nice and Easy Way:-
Go to Tools->Flutter->Open for editing in android studio.
open for editing in android studio
Choose separate window. This will open the android part of your project in separate window.
Wait to Gradle to finish it's build.
Go to Build-> Generate signed bundle/apk.
Follow this video for further process.
Thank me later..!
in my case, one of my harddisks hard stopped working (in which I had my first project).
File > Settings > Appearance & Behaviour > Build, Execution, Deployment > Build Tools > Gradle menu, changing the Gradle user home to another folder solved the issue. the original value of it consisted path to my first project which wasn't existing anymore.
I had the same issue not having the "generate signed bundle/apk" enabled in Android Studio interface and this thread helped to deduce what was my issue... I'm new to android development so I didn't know what to do at all but checking the build.gradle file I realized that there were issues with the synchronization of gradle, so I found this video, downloaded the latest version of Grandle, then went to File > Sync with Fyle System, and after the sync was completed the button appeared.... so seems like this has a direct relation to the right synchronization of gradle.

In android studio,cannot load 2 facets-unknown facet type:android and android-gradle

When I open android studio I am getting an error- "Error loading project: Cannot load 2 facets. When I clicked to see the error the following appeared
"2 facets cannot be loaded. You can mark them them as ignored to suppress this error notification.
Unknown facet type:'android', Unknown facet type:'android-gradle'
I tried to add facets ( In Project Structure > Project settings > Modules > clicked project name, then clicked Android as well as Android-Gradle) But both showed as "cannot load facet, unknown facet type." Under Project settings > Facets > both Android and Android-Gradle are displayed as 'Invalid facets'.
My project was running smoothly. This problem occured when I force-closed my laptop before exiting android studio as everything got stuck. After that whenever I open the android studio this problem occurs. I am not able to run my project. Can anyone please help me to solve this?
Just enable Android Support plugin.
Click Ctrl+Alt+S in Windows or Meta+Comma in Mac.
In top search bar type "plugin".
On right side it will show a list of plugins, find Android Support plugin, check it and click OK at the bottom of screen.
This is how it looks:
In Android Studio go to
File -> Settings - > Plugins -> Enable "Android Support" Plugin.
File, Then Settings->Plugin->Enable/Renable Plugin --> Apply --> Restart
This problem occured when i'd updated Android Studio.
In case nothing from other answers works, you don't have another option, except removing broken settings and making clean setup.
So what i am suggesting:
Use Settings Repository Feature to store personal IDE settings
close studio
remove .AndroidStudioX folder from user folder
re-launch studio, do not copy settings from previous version (because settings probably broken and auto-import couldn't import it well)
import personal settings from Settings Repository
For me I went to Settings -> Plugins and de-selected Gradle then immediately re-selected it. Android Studio then asked if I wanted to enable Groovy so I said yes and let it restart and now everything is happy again! (it was checked, but clearly somewhere deep down not truly enabled, so toggling the check-box sorted it)
Not sure if my cause was installing Flutter, but I did have to disable the Flutter plugin before I could build again.
I had the same problem with an ever-increasing number of facets - first 2, then 4, then 5 - and none of the above solutions worked. My solution (Android Studio 3.3, OS X) was to delete ~/Library/Preferences/AndroidStudio3.3/disabled_plugins.txt, which contained org.jetbrains.android and org.jetbrains.maven
I imagine if you have deliberately disabled plugins then you'll have to disable them again manually, but I was able to load all facets again.
Go To ->File->Settings->Plugins->disable/enable Android Support Plugins->Press Ok
Just re-enable Android Support plugin. Then it will ask to restart.
Restart them thats it
I faced this issue in Android Studio 3.2.1 I had to re-import my project after that it works.
I was facing this problem, I tried everything but nothing worked but then I remembered that I updated Android Studio just few hours back and then I enabled the plugins in the Android Studio and restarted it and it worked.
File -> Settings -> Plugin and then just press ok. It will ask to restart the android studio and please restart it.
For me I had to uncheck the plugin Android APK Support. I clicked Apply and then Ok to close the window. Android Studio prompted me to restart the program, and the program restarted. I checked the Android APK Support plugin again and restarted the program. And then I selected File -> Sync Project with Gradle Files
Then it worked just fine.

delete project in android Studio 0.3.4

i have some old projects in my android studio ide.
I never need them.
When I right click on a project I can't find an option for deletion, is it elsewhere?
how i can delete a project in android studio 0.3.4 ?
Open the .idea/modules.xml, and delete you module, then right click on you module, you can see Delete....
You have to mark the project folder as excluded, once you've done this, you'll see the 'delete' option.
This method is explained with more detail in this link, which seems to be the same you're looking for
How to delete a module in Android Studio

Android studio no main activity, no layouts on a new project

I installed new Android Studio. I created new Project and asked the wizard to create main activity. But there were no layouts, no main activity class, no nothing. Error on trying to make new Java class files. The new project tree looks like this:
No (main/java) folder.
No (res/layout) folder.
Other words project is useless.
From what i learned is that you may be picking the "no layout" option when prompted to pick one. Try picking the basic activity and the rest of the files will show
After creating the project, you need to go to File menu and then Import Project. Then browse to the location of your project and import it. Then you will see all of these files and folders. I had this problem too, and it seems to be something that they overlooked in the newer versions of Android Studio (which is quite pathetic if you ask me).
Empty Activity
Choose "Empty Activity" instead of "No Activity",
while creating a NEW PROJECT in Android Studio.
I don't know if anyone is having the same problem right now but i solved this issue by changing the Android Gradle plugin version and the Gradle version.
For doing this you have to open the project you're having issues with and click on
File->Project Structure->Project
and there you will see the two options.
Android Gradle Plugin Version 4.0.0 and Gradle version 6.1.1 worked for me. After that I went to the file directory, right click on the package folder "com.example.myProject" and manually created an empty activity. The layout folder with my new activity was created automatically after that.
I found it's because I changed the Java runtime version before through the Android Studio plugin Choose Runtime. I changed to JDK 8 from JDK 11 then the problem occured. It worked for me to change back to JDK 11 through plugin Choose Runtime.
Try
Typing main activity (without quotes) in the search box and
Press enter.
For me it got restored. Search window is useful in finding many hidden tools quickly.
I created a new activity by right clicking on java then selected activity and the layout file was automatically written
When you open a new project, you can't select "empty project" you have to select and activity project. I just went through this had to delete my project and start a new one now everythings there.

Android Studio - How to Change Android SDK Path

When I open Android SDK Manager from Android Studio, the SDK Path displayed is:
\android-studio\sdk
I want to change this path. How do I do it?
From Android Studio 1.0.1
Go to
File -> project Structure into Project Structure
Left -> SDK Location
SDK location select Android SDK location (old version use Press +, add another sdk)
For projects default:
Close current Project (File->Close project)
You'll get a Welcome to Android Studio Dialog. In that:
Click on Configure -> Project Defaults -> Project Structure
Click on SDK Location in the left column
Put the path to the Android SDK in "Android SDK location" field.
(Example SDK location: C:\android-sdk; I have sub-folders like
add-ons, platforms etc under C:\android-sdk)
Click OK to save changes
Have fun!
Following steps were for older versions(<1.0) of Android Studio
In the middle column Click on Android SDK (with Android icon) OR click + on the top if you don't see an entry with Android icon.
Change SDK Home Path and select valid Target.
From the quick start window, choose Configure, then choose Project Defaults, and then choose Project Structure. Then on the left under Platform Settings choose SDKs. Then to the right of that choose the current android platform, mine was Android 4.2.2 Platform, and delete it using the red minus button at the top, then add a new android platform using the green plus button at the top and point it to your current SDK folder and that is it.
I Configured in this way
on
Welcome to Android Studio Screen
Click Configure Then
Project Defaults and then Project Structure
Then
Android SDK and Selected the path to my current location of Android SDK
Changing the sdk location in Project Settings will solve the problem partially. When Android Studio is used to download a new SDK, it will place the new SDK in the internal SDK folder (inside Android Studio).
Existing android developers will already have a large sdks folder (hereinafter referred to as external SDK folder) containing all the SDKs downloaded before Android Studio came around.
For Mac/Linux users though there is a good way out. Soft links!
Exit Android Studio and perform the following steps:
cp -r <Android Studio>/sdk/ <external SDK folder>/
cd <Android Studio>/
mv <Android Studio>/sdk/ mv <Android Studio>/sdk.orig
ln -s <external SDK folder>/ sdk
And we're good to go. Launch SDK Manager after starting Android Studio, watch as it discovers all your existing SDKs like a charm :).
EUREKA I found it!
With the current Studio 1.3 each project has a local.properties file where you can edit the SDK!
Here's how you can change the android sdk path in Android studio:
Open your required android project in Android studio
Click on the main project folder and press F4
Now click on "SDKs" under Platform Settings (Left hand side of the dialog box)
You should now see a plus sign on the top, click it and choose "Android SDK"
Now you would be asked to choose the required SDK folder
Select the required build target(if necessary) and click "ok"
Now you should see the new entry in the list of SDKs
Click "Modules" under Project Settings
Select your project folder and in the Dropdown for "Module SDK", select the new SDK entry and click "apply"
Now click "OK" and your done.
Note: If changes do not take effect, restarting android studio should fix the problem.
Make your life easy with shortcut keys ctrl+shift+alt+S
or
by going to file->project structure:
it will open this window, where you can select your SDK
Try this way i try in Android Studio 2.0
Step 1: File->Settings
Step 2: Settings->SDK options
Step 3: Click Edit option in Sdk Location
Step 4: Show "SDK Components Setup"
Step 5: Click on Three "..." in "SDK Components Wizad"
Step 6: Select your new SDK Path
I noticed that the latest version of Android Studio doesn't seem to have the option "SDKs" path that's mentioned in many of the answers. I'm guessing that disappeared in one of the updates, somewhere down the line?
The way i solved this issue (osx) was:
Go to Project Settings (Cmd + ;)
In SDK Location make sure you're pointing to the correct SDK location (typically /Applications/Android Studio.app/sdk) then hit Apply
Most important step - hit "Sync Project with Gradle files"
I wasn't doing Step 3 and that was throwing me off. After a sync all your source r belong to us....
goto menu File->Project Strucurt or key Ctrl + Alt + Shift + S
and example http://how-to-android-studio.blogspot.com/2014/11/set-sdk-location.html
You can also create the environment variable (in Windows) ANDROID_HOME to the location of the Android SDK and Android Studio will use that.
Above answers are pretty correct, but some times Android Studio, does not like to refresh after SDK path change, a quick solution is to make some change in you Build file, and click on Sync. It will refresh you project.
Happy coding... :)
While first installation There are two situations either you have pre-installed Android SDK if you had used it in past or you have nothing at all, At a time of installation Installer always ask user how you want to configure SDK with your studio.
You can simply give a path here or browse folder where sdk is available in local system. If you already have SDK, Another option as shown in below picture at Left down corner there is a nice option for download SDK, by clicking it you can download SDK with latest release right from there,You can also use third option see in right down corner setup Android SDK for me by clicking it you can step by step set your sdk.
Although you can also set it up when Android shows you list of available projects, a starting prompt window shown below
That's pretty easy, and also sometime if you want to change your SDK you can always change it right in your Android Studio from
On windows system
File --> Project Structure and then you will see SDK Location Option and from there you can set it up by providing a path or by browse it.
Or if you are on MAC system then from Platform settings.
In Android Studio 2.2.3 I think you can change default SDK location for all projects from the top menu:
File -> Project Structure...
A window like below shows up:
in windows press ctrl+shift+alt+s which will open project properties where you can find first option named SDK Location click on it and there you can change SDK path, JDK path and NDK path also
This may not be what you want, but being an eclipse user I had the same problem having duplicate sdk folders which were eating all my ssd space. Currently you can only change sdk path inside android studio project wide which is annoying. What I did instead was I copied all the previous android sdk files that I was using with eclipse to /Android Studio/sdk/ and then just changed the sdk path inside eclipse.
Now both android studio and eclipse are happy.
Here is some ways, as far as I know now.
Android Studio 3.3.2 (testing is OK)
method: 1
just following steps of the official docs, as bellow link shows
https://developer.android.com/studio/intro/studio-config#jdk
method: 2
following steps of the screen shortcuts, as bellow shows
method: 3
following steps of the screen shortcut, as bellow shows
Tap --> file --> close current project.
You'll Android Studio home page
Click on Configure -> Project Defaults -> Project Structure
Click on SDK Location in the left column and copy the path.
Paste the path in My computer --> Right Click -> Properties -> click on Advanced system settings -> Environment variables and change the android home path.
click on 'OK' to save the session.
Add tools and platforms tools in path and save the changes.
Open command prompt[window+R] and type adb + enter.
In Android Studio you can set the general Android SDK path in the file: %Home%.AndroidStudio2.1\config\options\jdk.table.xml
Click on File menu.
Select Project Structure.
Edit the path in SDK Location text box.
From the next time Android Studio will use this location for all your projects.
N.B.: Avoid having spaces in the path as it may sometimes lead to issues.
This is how its done,in Android Studio for windows
Done
For Android Studio 3.1.2:
Tools>> SDK Manager>> Edit "Android SDK Location" to new location
After that, Set environment variable $ANDROID_HOME to your new SDK location
I had the same problem, but with the sdk path pointing to a mounted drive. I found, that simply quit Android Studio, unmount the device and restart Android Studio made it ask for the sdk location, because it had none (Android Studio Beta 0.8.7).
Therefore I guess if you just quit Android Studio, delete \android-studio\sdk or move it somewhere else and start Android Studio again, it should ask for the sdk location aswell.
Though many of the above answers serve the purpose, there is one straight forward thing we can do in project itself.
In Eclipse, go to Window->Preferences, select "Android" from left side menu. On the right panel you will see "SDK Location". Provide the path here.
Good luck.
In Android studio 1.2.2 you can simply changes project based SDK,
Steps:
Right click on Module and select Open module setting or press F12
Select SDK location from left hand side
Now you can change SDK location as well as JDK location from this page
When I ran into trouble with this on Android Studio 3.1.4 the solution was to go into the app dropdown on my project, then Edit Configurations > Defaults > JAR Application where there is a JRE box on the initial Configuration tab. Setting that to my JRE path solved the problem for me.
Simple Answer Work For Sure...
Step 1: Right Click On The Project>> Select Open Module Setting -->
Step 2: Select SDK Location From the Right Side below image
Step 3: Now browse the SDK location from your computer as show below...
Step 4: Click on OK.
I'm guessing from the responses that people aren't understanding your question... If I'm right in that you want to have ~\Desktop\github\ then changing the SDK location isn't what you're after.
From Android Studio 3.2.1:
From the new project dialog, choose
Configure -> Preferences -> Tools -> Terminal -> Start Directory
Put the folder you want as your project default in the field.
e.g. Mine is set to
~/Desktop/github/
since all my work is in
~/Desktop/github/
Just go to
(Main Menu) File > "Sync Project With Gradle Files"
click ok on the popup, it will change your sdk directory.

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