[英]Android Data Binding : can't find the setter for attribute
Not sure how it works but according to this post it's possible to bind specific listener by using different namespaces. 不确定它是如何工作的但是根据这篇文章 ,可以通过使用不同的命名空间来绑定特定的监听器。
I wanted to do the same thing with a searchview and bind a QueryTextListener to it but I get the following error : 我想用searchview做同样的事情并将QueryTextListener绑定到它但我收到以下错误:
Cannot find the setter for attribute 'bind:setOnQueryTextListener'
with parameter type android.widget.SearchView.OnQueryTextListener.
What I did in my ViewModel : 我在ViewModel中做了什么:
public class MembersFragmentViewModel extends BaseObservable {
private Context context;
private MembersAdapter adapter;
private RecyclerView recyclerView;
public MembersFragmentViewModel(Context context, MembersAdapter adapter, RecyclerView recyclerView) {
this.context = context;
this.adapter = adapter;
this.recyclerView = recyclerView;
}
public SearchView.OnQueryTextListener getQueryTextListener(){
return new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String query) {
return false;
}
@Override
public boolean onQueryTextChange(String query) {
List<Contact> filteredModelList = filter(adapter.getContacts(), query);
adapter.animateTo(filteredModelList);
if(recyclerView != null)
recyclerView.scrollToPosition(0);
return true;
}
};
}
//Code ...
And the xml : 和xml:
My namespace is declared in the layout tag like this : 我的命名空间在布局标记中声明如下:
xmlns:bind="http://schemas.android.com/apk/res-auto"
And my SearchView : 而我的SearchView:
<android.support.v7.widget.SearchView android:id="@+id/searchview"
android:layout_width="match_parent"
android:layout_height="40dp"
android:background="@drawable/rounded_search_view_background"
bind:setOnQueryTextListener="@{viewModel.QueryTextListener}">
</android.support.v7.widget.SearchView>
This is my data tag : 这是我的数据标签:
<data>
<variable
name="viewModel"
type="mypackagename.viewmodel.members.MembersFragmentViewModel"/>
</data>
Many thanks for any clue ! 非常感谢任何线索!
In my case the answer was just a wrong package name. 在我的情况下,答案只是一个错误的包名。
My SearchView was declared in xml with the following package name : 我的SearchView在xml中使用以下包名称声明:
android.support.v7.widget.SearchView
And the package I used in the ViewModel was 我在ViewModel中使用的包是
android.widget.SearchView
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