I’m trying to setup a simple database and part of my code is throwing off this error, which im not really sure of how to fix, the line in particular is the following: Which yields: Type Mismatch, Required: Context, Found: unit! What should I do to fix this? Whole code: Answer As per your error, the meth…
Tag: kotlin
How can i eliminate Empty spaces in recyclerView when trying to hide cards with null properties?
Empty spaces in recyclerView when trying to hide cards with null properties Hi, i’m new here. So this is my first question. I am trying to use the google Books API for a task and when I implement everything, I see many books without image, title or author, that for obvious reasons I do not want them to …
BigQuery TableResult casting options
How can I cast the TableResult to the following format List<Map<String, Any>> Map contains the columns and its value respectively. Multiple rows are added to the list. I tried something like this, but it throws an error -> com.google.cloud.bigquery.TableResult cannot be cast to java.util.List H…
Kotlin single equal sign “=” object assignment time complexity
What is the time complexity of object assignment using the equals sign in Kotlin (or Java)? More specifically if I have my own object ListNode What would be the copy time below? I find myself often doing this assignment since ListNode passes as val, and I can’t do Answer The assignment does not make a n…
android:exported needs to be explicitly specified for . Apps targeting Android 12 and higher are required to specify
After upgrading to android 12, the application is not compiling. It shows “Manifest merger failed with multiple errors, see logs” Error showing in Merged manifest: Merging Errors: Error: android:exported needs to be explicitly specified for . Apps targeting Android 12 and higher are required to sp…
BottomNavigation, FragmentManager has not been attached to a host
I have moved BottomNavigation codes from MainActivity to A class I have created for the BottomNaviction to make the code more organizing. When I moved the codes I got this error java.lang.RuntimeException: Unable to start activity ComponentInfo{com.moataz.mox/com.moataz.mox.ui.view.activity.MainActivity}: jav…
Kotlin to Java migration
I am unable to translate(from Kotlin to Java) or understand this statement service.connectionListener = { addConnection(it) } which is found in the inner class of the following file: I was unable to translate the above statement (commented out): Answer This code in Kotlin: Corresponds to this code in Java: It…
How to store maps api key in local.properties and use it in AndroidManifest.xml
I am using Jetpack Compose and trying to integrate Google maps in my application. I have followed the documentation in setting up an API key. However, I am getting an error when building the project. On my local.properties file I have the following code: And on my AndroidManifest.xml I have the following code…
Android room how to increment count field and updating specific row fields
I have the following schema I am implementing for counting button taps for a user . For example if the the user clicks on apple button I would like to store the type as primary key which would be a unique entry followed by the count for the number of times the user taps on apple button and for each
How Do I Convert This Java Code to Kotlin libGDX
I can’t figure out how to convert the ChangeEvent handler code from Java to Kotlin Answer