I have a form screen that is also an information screen, but in different states. When the user enters to create I want to hide the MenuItem that assigns to delete. How to do this without breaking the app? I'm…
I need to display an error message if the login is unsuccessful, but I need to check if the error is in the username or password At first I'm putting an error message in the password box, but it doesn't…
Im trying to get data from an api, and im running into an error on this line val queue = Volley.newRequestQueue(this@MainActivity) The error says "Type mismatch: inferred type is Home but Context! was expected" I have tried changing "this" to…
Undeclared namespace prefix "android" (for attribute "layout_width") How can I fix this? This says that android is not defined. How can I solve it? please help
I am building an app and need to open the map after either a picture is taken from the camera or is selected from their images. It runs a python script to generate a random set of GPS coordinates, which…
I have a data class @Parcelize data class PublicationPageModel( @SerializedName("pageNumber") val pageNumber: Int, @SerializedName("content") val content: String ): Parcelable I already added items to the array like this: private var publicationPageModel: ArrayList<PublicationPageModel> = arrayListOf() publicationPageModel.add(PublicationPageModel(finalPageNumber, fileContent)) Now, I want to…
I've been having fun digging into Jetpack Compose. Here I used Rows, Columns, and Spacers to build this screenshot. Is there a better-suited Composable I should try? I couldn't get LazyVerticalGrid to place the jellyfish in its position. It wants…
I need the TabLayout to have an "x" number of tabs, which can vary according to the user's data that is already in the database My xml: enter code here<com.google.android.material.tabs.TabLayout android:id="@+id/select_bar" android:layout_width="match_parent" android:layout_height="wrap_content" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" app:tabContentStart="32dp" app:tabMode="scrollable"> <com.google.android.material.tabs.TabItem android:id="@+id/posto1"…
I'm trying to configure the build.grade to use Room The error persists: Unresolved reference: room And, consequently, the anotation remains Unresolved @Entity After 7 tutorials and 3 days, I have to surrender and ask for help. Here I paste my…
I am new to Kotlin, and currently building my very first app (I am not experienced at all on the topic). I successfully managed to customize my android phone and my android studio and achieved to launch the app I…