继上篇博客 1.2.3.7
一:view层
1.BaseView接口
public interface BaseView {
}
2.MainView接口继承BaseView
public interface MainView extends BaseView{
void onSuccess(ShouBean shouBean);
void onFailed(String msg);
}
二:p层
1.BasePresenter
public class BasePresenter<V extends BaseView>{
private V iv;
public void attachView(V iv) {
this.iv = iv;
}
public void datachView(V iv) {
this.iv = iv;
}
public V getView() {
return iv;
}
}
2.MainPresenter继承BasePresenter
public class MainPresenter extends BasePresenter<MainView> {
public void loadData() {
Call<ShouBean> shou = HttpUtils.getData().api.shou();
shou.enqueue(new Callback<ShouBean>() {
@Override
public void onResponse(Call<ShouBean> call, Response<ShouBean> response) {
ShouBean shouBean = response.body();
getView().onSuccess(shouBean);
}
@Override
public void onFailure(Call<ShouBean> call, Throwable t) {
}
});
}
}
三:主页面
public class MainActivity extends AppCompatActivity implements MainView {
@BindView(R.id.recycle_view)
RecyclerView recycleView;
public MainPresenter mainPresenter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ButterKnife.bind(this);
mainPresenter = new MainPresenter();
mainPresenter.attachView(this);
mainPresenter.loadData();
}
@Override
public void onSuccess(ShouBean shouBean) {
ShouBean.DataBean.TuijianBean tuijian = shouBean.getData().getTuijian();
recycleView.setAdapter(new ShouAdapter(MainActivity.this,tuijian));
//瀑布流
recycleView.setLayoutManager(new StaggeredGridLayoutManager(2,StaggeredGridLayoutManager.VERTICAL));
SpacesItemDecoration decoration=new SpacesItemDecoration(50);
recycleView.addItemDecoration(decoration);
adapter.setOnItemCickListener(new ShouAdapter.OnItemClickListener() {
@Override
public void onItemClick(int position) {
int pid = shouBean.get(position).getPid();
Intent intent = new Intent(MainActivity.this,XiangActivity.class);
intent.putExtra("pid",String.valueOf(pid));
startActivity(intent);
}
});
}
@Override
public void onFailed(String msg) {
}
//避免内存泄漏
@Override
protected void onDestroy() {
super.onDestroy();
mainPresenter.datachView(this);
}
}
四:适配器
public class ShouAdapter extends RecyclerView.Adapter<ShouAdapter.ViewHolder>{
private Context context;
private ShouBean.DataBean.TuijianBean list;
private OnItemClickListener onItemCickListener;
public ShouAdapter(Context context, ShouBean.DataBean.TuijianBean list) {
this.context = context;
this.list = list;
}
@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(context).inflate(R.layout.item_layout, parent, false);
ViewHolder holder = new ViewHolder(view);
return holder;
}
@Override
public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
holder.simple_view.setImageURI(list.getList().get(position).getImages().split("\\|")[0]);
holder.text_view.setText(list.getList().get(position).getTitle());
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
onItemCickListener.onItemClick(position);
}
});
}
@Override
public int getItemCount() {
return list.getList().size();
}
public class ViewHolder extends RecyclerView.ViewHolder{
private final SimpleDraweeView simple_view;
private final TextView text_view;
public ViewHolder(View itemView) {
super(itemView);
simple_view = itemView.findViewById(R.id.simple_view);
text_view = itemView.findViewById(R.id.text_view);
}
}
public interface OnItemClickListener{
void onItemClick(int position);
}
public void setOnItemCickListener(OnItemClickListener onItemCickListener){
this.onItemCickListener = onItemCickListener;
}
}
五:item_layout布局
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<com.facebook.drawee.view.SimpleDraweeView
android:layout_width="150dp"
android:layout_height="150dp"
android:id="@+id/simple_view"/>
<TextView
android:id="@+id/text_view"
android:layout_width="wrap_content"
android:layout_height="50dp"
android:text="xxxxxx"
android:layout_margin="10dp"/>
</LinearLayout>
六:瀑布流类
public class SpacesItemDecoration extends RecyclerView.ItemDecoration {
private int space;
public SpacesItemDecoration(int space) {
this.space=space;
}
@Override
public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
outRect.left=space;
outRect.right=space;
outRect.bottom=space;
if(parent.getChildAdapterPosition(view)==0){
outRect.top=space;
}
}
}