Is it possible to pass custom arguments to onClick
method using the Data Binding Library? I have my layout xml file where I need to use the onClickListener:
<?xml version="1.0" encoding="utf-8"?> <layout ...> <data> <variable name="viewModel" type="com.productivity.tiktak.ui.tracker.viewModel.CategoryViewModel"/> <variable name="callback" type="com.productivity.tiktak.ui.tracker.TrackerAdapter"/> </data> <android.support.v7.widget.CardView android:onClick="@{callback.onCategoryClick(viewModel)}" ... android:layout_width="match_parent" android:layout_height="wrap_content"> <!-- ... Some stuff --> </android.support.v7.widget.CardView> </layout>
and I a have my click handler code here:
public void onCategoryClick(View view, CategoryViewModel categoryViewModel) { //handler code... }
Is it possible to pass my CategoryViewModel object from xml to click handler?
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Answer
You can use a lambda expressions and pass the view in as a parameter.
android:onClick="@{() -> callback.onCategoryClick(viewModel)}"
If you need the view, you can pass that as well with:
android:onClick="@{(view) -> callback.onCategoryClick(view, viewModel)}"