バインディングを使用してムービーポスター画像のグリッドビューを作成したいと考えています。私は次のエラーを取得するピカソで@BindingAdapterをセットアップするには?
public class PopularMoviesAdapter extends RecyclerView.Adapter<PopularMoviesAdapter.BindingHolder> {
private List<Movie> movies;
private Context context;
public PopularMoviesAdapter(List<Movie> movies, Context context) {
this.movies = movies;
this.context = context;
}
public void add(Movie movie){
movies.add(movie);
}
@Override
public BindingHolder onCreateViewHolder(ViewGroup parent, int viewType) {
PopularMoviesBinding popularMoviesBinding = DataBindingUtil.inflate(LayoutInflater.from(parent.getContext()),
R.layout.popular_movies_gridview_row, parent,false);
return new BindingHolder(popularMoviesBinding);
}
@Override
public void onBindViewHolder(PopularMoviesAdapter.BindingHolder holder, int position) {
PopularMoviesBinding popularMoviesBinding = holder.popularMoviesBinding;
popularMoviesBinding.setPmvm(new PopularMoviesViewModel(movies.get(position), context));
}
@Override
public int getItemCount() {
return movies.size();
}
public class BindingHolder extends RecyclerView.ViewHolder{
private PopularMoviesBinding popularMoviesBinding;
public BindingHolder(PopularMoviesBinding popularMoviesBinding) {
super(popularMoviesBinding.getRoot());
this.popularMoviesBinding = popularMoviesBinding;
}
}
}
:
java.lang.IllegalStateException: Required DataBindingComponent is null in class PopularMoviesBinding.A BindingAdapter in modelviews.PopularMoviesViewModel is not static and requires an object to use, retrieved from the DataBindingComponent.
public class PopularMoviesViewModel extends BaseObservable {
Movie movie;
Context context;
MovieServiceComponent movieServiceComponent = DaggerMovieServiceComponent.builder()
.contextModule(new ContextModule(context))
.build();
Picasso getPicasso = movieServiceComponent.getPicasso();
public PopularMoviesViewModel(Movie movie, Context context) {
this.movie = movie;
this.context = context;
}
@Bindable
public String getImageUrl(){
return movie.posterPath();
}
@Bindable
public String getTitle(){
return movie.originalTitle();
}
@BindingAdapter({"imageUrl"})
public void setImageUrl(ImageView view, String poserPath){
getPicasso.with(view.getContext()).load("http://image.tmdb.org/t/p/w185"+ poserPath).into(view);
}
}
レイアウト:
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android">
<data class="PopularMoviesBinding">
<variable
name="pmvm"
type="com.hartyandi.oviesm.modelviews.PopularMoviesViewModel"></variable>
</data>
<LinearLayout
android:id="@+id/row"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FFFFFF"
android:paddingBottom="0dp"
android:paddingTop="5dp"
android:paddingRight="2.5dp"
android:paddingLeft="5dp"
android:orientation="vertical">
<ImageView
app:imageUrl="@{pmvm.imageUrl}"
android:id="@+id/popular_movies_grid_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="0dp"
android:adjustViewBounds="true"
android:elevation="20dp">
</ImageView>
<TextView
android:id="@+id/popular_movies_grid_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@{pmvm.title}"
android:textColor="#000000"
android:textSize="12sp"
android:background="#FFFFFF"
>
</TextView>
</LinearLayout>
</layout>
はアダプタ
私のviewmodelはそのように見えます
I tried to change my implementation just like this stackoverflow post suggestと同じエラーメッセージが表示されます。
I also used the following code as example.
誰かがコードの問題は、どのようにそれを解決するために何を説明してもらえますか?