I am building an Android app.
I have a layout that contains a button 'saveButton'. When the user clicks the button, the onClick should call a function in my ViewModel, onSave(). This function requires 2 parameters: the text contents of 2 EditText views that are also present in the same layout.
Basically, the user has edited the name and/or the synopsis and now wants to have the ViewModel update the object's data in the database.
(Part of) my UI (.xml fragment layout):
<?xml version="1.0" encoding="utf-8"?>
<layout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
tools:context=".ui.CreateEditRelationFragment">
<data>
<variable
name="createEditRelationViewModel"
type="be.pjvandamme.farfiled.viewmodels.CreateEditRelationViewModel" />
</data>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:id="@+id/saveButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/saveText"
android:onClick="@{() -> createEditRelationViewModel.onSave(relationNameEditText.getEditText().getText().toString(), relationSynopsisEditText.getEditText().getText().toString())}" />
<Button
android:id="@+id/cancelButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="32dp"
android:text="@string/cancelText"
android:onClick="@{() -> createEditRelationViewModel.onCancel()}" />
<EditText
android:id="@+id/relationSynopsisEditText"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:ems="10"
android:gravity="start|top"
android:inputType="textMultiLine" />
<EditText
android:id="@+id/relationNameEditText"
android:layout_width="@dimen/relationNameEditWidth"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:layout_marginBottom="16dp"
android:ems="10"
android:inputType="textPersonName"
android:text="Name" />
</androidx.constraintlayout.widget.ConstraintLayout>
(Part of) the ViewModel:
class CreateEditRelationViewModel (
private val relationKey: Long?,
val database: RelationDao,
application: Application
): AndroidViewModel(application){
private var viewModelJob = Job()
private val uiScope = CoroutineScope(Dispatchers.Main + viewModelJob)
private var relation = MutableLiveData<Relation?>()
private var _navigateToRelationDetail = MutableLiveData<Boolean>()
val navigateToRelationDetail: LiveData<Boolean>
get() = _navigateToRelationDetail
fun onSave(name: String, synopsis: String){
Timber.i("Got name: " + name + " and synopsis: " + synopsis)
if(relationKey == null){
uiScope.launch{
relation.value = Relation(0, name, synopsis, false)
insert(relation.value!!)
}
}
else{
uiScope.launch{
relation.value?.name = name
relation.value?.synopsis = synopsis
update(relation.value)
}
}
_navigateToRelationDetail.value = true
}
private suspend fun insert(newRelation: Relation){
withContext(Dispatchers.IO){
database.insert(newRelation)
}
}
private suspend fun update(relation: Relation?){
if(relation != null) {
withContext(Dispatchers.IO) {
database.update(relation)
}
}
}
}
I would want this thing to compile so that the onSave() function is called and the contents of the EditTexts passed as parameters.
I cannot manage to pass the text contents of these EditTexts. The compiler throws this error:
[databinding] {"msg":"cannot find method getEditText() in class android.widget.EditText","file":"D:\\ etc.
It does the same thing when I try to access using the .text property directly. Does anyone know what I'm doing wrong? I'm tearing my hair out.
getEditText() method doesn't exist and you can remove it.
instead of;
relationNameEditText.getEditText().getText().toString()
you can do
relationNameEditText.getText().toString()`