安卓应用布局与适配-优快云博客

本文链接：https://blog.youkuaiyun.com/weixin_42502772/article/details/83374358

一

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <ImageView
            android:id="@+id/scan"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:padding="10dp"
            android:layout_height="wrap_content"
            android:src="@mipmap/sao_hei"/>
        <SearchView
            android:layout_width="0dp"
            android:layout_weight="10"
            android:background="@drawable/redio"
            android:layout_height="wrap_content" />
        <ImageView
            android:id="@+id/message"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:padding="10dp"
            android:layout_height="wrap_content"
            android:src="@mipmap/msg_hei"/>
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <android.support.v7.widget.RecyclerView
            android:id="@+id/recyclerview_mainclass"
            android:layout_width="0dp"
            android:layout_weight="2"
            android:layout_height="wrap_content">
        </android.support.v7.widget.RecyclerView>
        <ScrollView
            android:layout_width="0dp"
            android:layout_weight="5"
            android:layout_height="wrap_content">
            <LinearLayout
                android:id="@+id/linear"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical">
            </LinearLayout>
        </ScrollView>
    </LinearLayout>
</LinearLayout>

二

封装bean

三

package com.example.logonandlingin.adapter;

import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.example.logonandlingin.R;
import com.example.logonandlingin.bean.MainClassify;

import java.util.List;

/**
 * Created by 。。。。 on 2018/10/18.
 */

public class MainClassAdapter extends RecyclerView.Adapter<MainClassAdapter.ViewHolder> {
    private Context context;
    private List<MainClassify.DataBean> list;

    public MainClassAdapter(Context context, List<MainClassify.DataBean> list) {
        this.context = context;
        this.list = list;
    }
    public interface OnItemClickListener{
        void OnItemClick(View view,int position);
    }
    private OnItemClickListener clickListener;
    public void setOnItemClickListener(OnItemClickListener clickListener){
        this.clickListener=clickListener;
    }
    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View v=View.inflate(context, R.layout.item_mainclass,null);
        ViewHolder holder=new ViewHolder(v);
        return holder;
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, final int position) {
        holder.txtname.setText(list.get(position).getName());
        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if(clickListener!=null){
                    clickListener.OnItemClick(v,position);
                }
            }
        });
    }

    @Override
    public int getItemCount() {
        return list.size();
    }

    class ViewHolder extends RecyclerView.ViewHolder {

        private  TextView txtname;

        public ViewHolder(View itemView) {
            super(itemView);
            txtname = itemView.findViewById(R.id.txt_name);
        }
    }
}

四

package com.example.logonandlingin.adapter;

import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import com.bumptech.glide.Glide;
import com.example.logonandlingin.R;
import com.example.logonandlingin.bean.SubClass;

import java.util.List;

/**
 * Created by 。。。。 on 2018/10/19.
 */

public class SubClassAdapter extends RecyclerView.Adapter<SubClassAdapter.ViewHolder> {
    private Context context;
    private List<SubClass.DataBean.ListBean> list;

    public SubClassAdapter(Context context, List<SubClass.DataBean.ListBean> list) {
        this.context = context;
        this.list = list;
    }

    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View v=View.inflate(context, R.layout.item_subclass,null);
        ViewHolder holder=new ViewHolder(v);
        return holder;
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
        Glide.with(context).load(list.get(position).getIcon()).into(holder.imageView);
        holder.textView.setText(list.get(position).getName());
    }

    @Override
    public int getItemCount() {
        return list.size();
    }

    class ViewHolder extends RecyclerView.ViewHolder {

        private ImageView imageView;
        private  TextView textView;

        public ViewHolder(View itemView) {
            super(itemView);
            imageView = itemView.findViewById(R.id.img_subclass);
            textView = itemView.findViewById(R.id.txt_subclassname);
        }
    }
}

五

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
    <TextView
        android:id="@+id/txt_name"
        android:padding="20dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
</LinearLayout>

六

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:orientation="vertical">
    <ImageView
        android:id="@+id/img_subclass"
        android:layout_width="50dp"
        android:layout_height="50dp" />
    <TextView
        android:id="@+id/txt_subclassname"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

七

package com.example.logonandlingin.classify;

import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.DividerItemDecoration;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

import com.example.logonandlingin.R;
import com.example.logonandlingin.adapter.MainClassAdapter;
import com.example.logonandlingin.adapter.SubClassAdapter;
import com.example.logonandlingin.bean.MainClassify;
import com.example.logonandlingin.bean.SubClass;
import com.example.logonandlingin.presenter.ClassPresenter;
import com.example.logonandlingin.view.ClassView;
import com.uuzuche.lib_zxing.activity.CaptureActivity;
import com.uuzuche.lib_zxing.activity.CodeUtils;

import java.util.ArrayList;
import java.util.List;

public class ClassifyFragment extends Fragment implements ClassView {

    private static final String TAG = "ClassifyFragment";
    private ImageView scan;
    private ImageView message;
    private RecyclerView recyclerView;
    private RecyclerView.LayoutManager layoutManager;
    private List<MainClassify.DataBean> mainClassifies;
    private ClassPresenter classPresenter;
    private MainClassAdapter adapter;
    private LinearLayout linearLayout;
    private List<SubClass.DataBean> beanList;
    private SubClassAdapter subClassAdapter;
    private RecyclerView rvsubclass;
    private TextView textView;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.fragment_classify, container, false);
        scan = v.findViewById(R.id.scan);
        message = v.findViewById(R.id.message);
        //主类
        recyclerView = v.findViewById(R.id.recyclerview_mainclass);
        linearLayout = v.findViewById(R.id.linear);
        mainClassifies = new ArrayList<>();
        layoutManager = new LinearLayoutManager(getActivity());
        recyclerView.setLayoutManager(layoutManager);
        recyclerView.addItemDecoration(new DividerItemDecoration(getActivity(), DividerItemDecoration.VERTICAL));
        adapter = new MainClassAdapter(getActivity(), mainClassifies);
        recyclerView.setAdapter(adapter);
        classPresenter = new ClassPresenter();
        beanList = new ArrayList<>();
        classPresenter.attach(this);
        classPresenter.mainclass();
        adapter.setOnItemClickListener(new MainClassAdapter.OnItemClickListener() {
            @Override
            public void OnItemClick(View view, int position) {
                MainClassify.DataBean bean = mainClassifies.get(position);
                classPresenter.subclass("http://www.zhaoapi.cn/product/getProductCatagory?cid=" + bean.getCid());
//                Log.i(TAG, "OnItemClick: " + 543554340);
                Toast.makeText(getContext(),""+bean.getCid(),Toast.LENGTH_SHORT).show();
            }
        });
        QR();
        return v;
    }

    private void QR() {
        scan.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(getActivity(), CaptureActivity.class);
                startActivityForResult(intent, 1000);
            }
        });
    }

    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == 1000) {
            //处理扫描结果（在界面上显示）
            if (null != data) {
                Bundle bundle = data.getExtras();
                if (bundle == null) {
                    return;
                }
                if (bundle.getInt(CodeUtils.RESULT_TYPE) == CodeUtils.RESULT_SUCCESS) {
                    String result = bundle.getString(CodeUtils.RESULT_STRING);
                    Toast.makeText(getActivity(), "解析结果:" + result, Toast.LENGTH_LONG).show();
                } else if (bundle.getInt(CodeUtils.RESULT_TYPE) == CodeUtils.RESULT_FAILED) {
                    Toast.makeText(getActivity(), "解析二维码失败", Toast.LENGTH_LONG).show();
                }
            }
        }
    }

    @Override
    public void getmainclass(MainClassify mainClassify) {
        if (mainClassify != null) {
            List<MainClassify.DataBean> classifyList = mainClassify.getData();
            if (mainClassify != null) {
                mainClassifies.clear();
                mainClassifies.addAll(classifyList);
                adapter.notifyDataSetChanged();
            }
        }
    }

    @Override
    public void getsubclass(List<SubClass.DataBean> list) {
        if(list!=null){
            linearLayout.removeAllViews();
            for (int i = 0; i < list.size(); i++) {
                textView = new TextView(getActivity());

                textView.setText(list.get(i).getName());

                rvsubclass = new RecyclerView(getActivity());

                subClassAdapter = new SubClassAdapter(getActivity(), list.get(i).getList());
                rvsubclass.setAdapter(subClassAdapter);

                RecyclerView.LayoutManager layoutManager = new GridLayoutManager(getActivity(), 3);
                rvsubclass.setLayoutManager(layoutManager);

                linearLayout.addView(textView);
                linearLayout.addView(rvsubclass);

                beanList.clear();
                beanList.addAll(list);
                subClassAdapter.notifyDataSetChanged();
            }
        }
    }
    @Override
    public void failed(Exception e) {

    }

    @Override
    public void onResume() {
        super.onResume();
        classPresenter.subclass("http://www.zhaoapi.cn/product/getProductCatagory?cid=1");
    }
}

八

package com.example.logonandlingin.presenter;

import com.example.logonandlingin.bean.MainClassify;
import com.example.logonandlingin.bean.SubClass;
import com.example.logonandlingin.callback.ICallBack;
import com.example.logonandlingin.classify.ClassifyFragment;
import com.example.logonandlingin.model.Model;
import com.example.logonandlingin.view.ClassView;
import com.google.gson.reflect.TypeToken;

import java.lang.reflect.Type;
import java.util.List;

/**
 * Created by 。。。。 on 2018/10/18.
 */

public class ClassPresenter {
    private ClassView iv;
    private Model model;

    public void attach(ClassView iv) {

        this.iv = iv;
        model = new Model();
    }
    public void mainclass(){
        Type type=new TypeToken<MainClassify>(){}.getType();
        model.login("http://www.zhaoapi.cn/product/getCatagory", new ICallBack() {
            @Override
            public void onsuccess(Object o) {
                iv.getmainclass((MainClassify) o);
            }

            @Override
            public void onFailed(Exception e) {
                iv.failed(e);
            }
        },type);
    }
    public void subclass(String url){
        Type type=new TypeToken<SubClass>(){}.getType();
        model.login(url, new ICallBack() {
            @Override
            public void onsuccess(Object o) {
                SubClass subClass= (SubClass) o;
                iv.getsubclass(subClass.getData());
            }

            @Override
            public void onFailed(Exception e) {
                iv.failed(e);
            }
        },type);
    }
}

分类