Android Data Binding 代码实战

本代码用来练习Android Data Binding技术

目前实现

豆瓣电影搜索

利用Data Binding在RecycleView展示电影列表

Model

publicclassMovieextendsBaseObservable {
privateStringid;
privateStringtitle;
privateStringoriginal_title;
privateStringyear;
privateImagesimages;
privateRatingrating;
@BindablepublicStringgetTitle() {
returntitle;
}
publicvoidsetTitle(Stringtitle) {
this.title = title;
notifyPropertyChanged(BR.title);
}
@BindablepublicStringgetDescription() {
returnthis.original_title + "\n" + this.getYear();
}
publicvoidsetOriginal_title(Stringoriginal_title) {
this.original_title = original_title;
notifyPropertyChanged(BR.description);
}
publicvoidsetYear(Stringyear) {
this.year = year;
notifyPropertyChanged(BR.description);
}
...
}

Layout

<layoutxmlns:android="http://schemas.android.com/apk/res/android"xmlns:app="http://schemas.android.com/apk/res-auto">
<data>
<variablename="movie"type="com.aswifter.databinding.model.Movie" />
</data>
...
<LinearLayoutandroid:layout_width="match_parent"android:layout_height="wrap_content"android:layout_marginLeft="10dp"android:orientation="vertical">
<TextViewandroid:layout_width="match_parent"android:layout_height="wrap_content"android:text="@{movie.title}"android:textAppearance="@style/TextAppearance.AppCompat.Title"android:textColor="@color/primary_text" />
<TextViewandroid:layout_width="match_parent"android:layout_height="wrap_content"android:layout_marginTop="2dp"android:text="@{movie.description}"android:textColor="@color/secondary_text" />
<RatingBarstyle="@android:style/Widget.DeviceDefault.Light.RatingBar.Small"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginTop="10dp"android:numStars="10"android:rating="@{movie.rating.average}"android:stepSize="0.5" />
</LinearLayout>
...
</layout>

Binding

Moviemovie = mMovies.get(position);
Glide.with(MovieActitiviy.this)
.load(movie.getImages().getMedium())
.fitCenter()
.into(holder.binding.ivMovie);
holder.binding.setVariable(com.aswifter.databinding.BR.movie, movie);
holder.binding.executePendingBindings();