Android 仿京东分类页面
activity_main
MianActivity
public class MainActivity extends AppCompatActivity implements GroupPresenter.GroupListener, RightPresenter.RightListener {
RecyclerView mRecyclerView,recycle_right;
Madapter madapter;
RightAdapter rightAdapter;
RightPresenter rightPresenter;
GroupPresenter groupPresenter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mRecyclerView =findViewById(R.id.recycle);
recycle_right = findViewById(R.id.recycle_right);
//设置左边布局
initLeft();
//设置右边布局 默认加载第一页
initRight("http://www.zhaoapi.cn/product/getProductCatagory?cid=1");
}
private void initRight(String urls) {
//p层
rightPresenter = new RightPresenter(this);
rightPresenter.loadData(urls);
//适配器
rightAdapter = new RightAdapter(MainActivity.this);
recycle_right.setAdapter(rightAdapter);
recycle_right.setLayoutManager(new LinearLayoutManager(MainActivity.this,LinearLayoutManager.VERTICAL,false));
}
private void initLeft() {
//左边布局 适配器
madapter = new Madapter(this);
mRecyclerView.setAdapter(madapter);
//p层 请求数据
groupPresenter = new GroupPresenter(this);
groupPresenter.requestData();
//布局管理器
mRecyclerView.setLayoutManager(new LinearLayoutManager(this,LinearLayoutManager.VERTICAL,false));
//条目点击
madapter.setMadapterListener(new Madapter.MadapterListener() {
@Override
public void setonitemclick(int cid) {
Log.e("哈哈哈哈哈哈哈哈哈哈",cid+"");
String path = "http://www.zhaoapi.cn/product/getProductCatagory?cid="+cid;
initRight(path);
}
});
}
@Override
public void datasuccess(List dataBeans) {
madapter.setData(dataBeans);
}
@Override
public void rightsuccess(List dataBeans) {
rightAdapter.setData(dataBeans);
}
@Override
protected void onDestroy() {
super.onDestroy();
rightPresenter = null;
groupPresenter=null;
}
}
左边条目的适配器 Madapter
**
* date:2018/11/21
* author:QMY(QMY)
* function:
*/
public class Madapter extends RecyclerView.Adapter {
private final MainActivity mainActivity;
private final List grouplist;
public Madapter(MainActivity mainActivity) {
this.mainActivity=mainActivity;
grouplist = new ArrayList<>();
}
@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
View view = View.inflate(mainActivity, R.layout.group, null);
ViewHolder viewHolder = new ViewHolder(view);
return viewHolder;
}
@Override
public void onBindViewHolder(@NonNull ViewHolder viewHolder, int i) {
viewHolder.tv.setText(grouplist.get(i).getName());
final GroupBean.DataBean bean = grouplist.get(i);
//条目点击事件
viewHolder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mMadapterListener.setonitemclick(bean.getCid());
}
});
}
@Override
public int getItemCount() {
return grouplist.size();
}
public void setData(List dataBeans) {
grouplist.clear();
grouplist.addAll(dataBeans);
notifyDataSetChanged();
}
public class ViewHolder extends RecyclerView.ViewHolder {
TextView tv;
public ViewHolder(@NonNull View itemView) {
super(itemView);
tv = itemView.findViewById(R.id.tv);
}
}
public interface MadapterListener{
void setonitemclick(int cid);
}
public MadapterListener mMadapterListener;
public void setMadapterListener(MadapterListener madapterListener){
mMadapterListener=madapterListener;
}
}
//右边第一个适配器
public class RightAdapter extends RecyclerView.Adapter {
private final List rightlist;
private final MainActivity mainActivity;
public RightAdapter(MainActivity mainActivity) {
this.mainActivity =mainActivity;
rightlist=new ArrayList<>();
}
@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
View view = View.inflate(mainActivity, R.layout.right, null);
ViewHolder viewHolder = new ViewHolder(view);
return viewHolder;
}
@Override
public void onBindViewHolder(@NonNull ViewHolder viewHolder, int i) {
viewHolder.name.setText(rightlist.get(i).getName());
List list = rightlist.get(i).getList();
RightAdapter1 rightAdapter1 = new RightAdapter1(list,mainActivity);
viewHolder.recycle_right1.setAdapter(rightAdapter1);
viewHolder.recycle_right1.setLayoutManager(new StaggeredGridLayoutManager(3,StaggeredGridLayoutManager.VERTICAL));
rightAdapter1.setOnItemClickListener(new RightAdapter1.OnItemClickListener() {
@Override
public void onItemClickListener(int layoutPosition) {
//点击条目的时候要根据点击的下标跳转到相应的页面，
// 所以需要拿到解析完的集合list.get(传过来的下标).地址
Intent intent = new Intent(mainactivity, Goods.class);
intent.putExtra("pscid",pscid);
activity.startActivity(intent);
}
});
}
@Override
public int getItemCount() {
return rightlist.size();
}
public void setData(List dataBeans) {
this.rightlist.clear();
rightlist.addAll(dataBeans);
notifyDataSetChanged();
}
public class ViewHolder extends RecyclerView.ViewHolder {
RecyclerView recycle_right1;
TextView name;
public ViewHolder(@NonNull View itemView) {
super(itemView);
recycle_right1 = itemView.findViewById(R.id.recycle_right1);
name = itemView.findViewById(R.id.name);
}
}
//右边下边适配
/**
* date:2018/11/22
* author:QMY(QMY)
* function:
*/
class RightAdapter1 extends RecyclerView.Adapter {
private final List list;
private final MainActivity mainactivity;
public RightAdapter1(List list, MainActivity mainActivity) {
this.list=list;
this.mainactivity = mainActivity;
}
@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
View view = View.inflate(mainactivity, R.layout.right1, null);
ViewHolder viewHolder = new ViewHolder(view);
return viewHolder;
}
@Override
public void onBindViewHolder(@NonNull ViewHolder viewHolder, final int i) {
viewHolder.name.setText(list.get(i).getName());
ImageLoader.getInstance().displayImage(list.get(i).getIcon(),
viewHolder.image,ImageLoderConfigs.getimageoption(mainactivity));
viewHolder.name.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mOnItemClickListener.onItemClickListener(list.get(i).getPscid());
}
});
}
@Override
public int getItemCount() {
return list.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
ImageView image;
TextView name;
public ViewHolder(@NonNull View itemView) {
super(itemView);
image = itemView.findViewById(R.id.image);
name = itemView.findViewById(R.id.name);
}
}
//实现接口
private OnItemClickListener mOnItemClickListener;
//创建接口
public interface OnItemClickListener{
void onItemClickListener(int layoutPosition);
}
//外界调用的方法
public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
mOnItemClickListener= onItemClickListener;
}
}
//左边条目p层
public class GroupPresenter {
public void requestData(){
String path = "http://www.zhaoapi.cn/product/getCatagory";
OkHttpUtils.getInstance().doGet(path, new OkHttpUtils.Utils() {
@Override
public void failed() {
}
@Override
public void success(String string) {
GroupBean groupBean = new Gson().fromJson(string, GroupBean.class);
mGroupListener.datasuccess(groupBean.getData());
}
});
}
public interface GroupListener{
void datasuccess(List dataBeans);
}
public GroupListener mGroupListener;
public GroupPresenter(GroupListener groupListener) {
mGroupListener = groupListener;
}
}
右边p层
public class RightPresenter {
public void loadData(String urls){
OkHttpUtils.getInstance().doGet(urls, new OkHttpUtils.Utils() {
@Override
public void failed() {
}
@Override
public void success(String string) {
//解析
RightBean rightBean = new Gson().fromJson(string, RightBean.class);
List data = rightBean.getData();
Log.e("gsaga",rightBean+"");
mRightListener.rightsuccess(data);
}
});
}
public interface RightListener{
void rightsuccess(List dataBeans);
}
public RightListener mRightListener;
public RightPresenter(RightListener rightListener) {
mRightListener = rightListener;
}
}
左边布局
右上
右下