Android开发简单购物界面 android studio 购物源码

直播带货源码，Android Studio购买售卖系统实现的相关代码

ShopActivity

package com.example.tryfirst;
 
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.TextView;
 
public class ShopActivity extends AppCompatActivity implements View.OnClickListener{
 
    private ItemInfo itemInfo0;
    private ItemInfo itemInfo1;
    private ItemInfo itemInfo2;
    private ItemInfo itemInfo3;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_shop);
        itemInfo0 = new ItemInfo("空军一号");
        itemInfo1 = new ItemInfo("李宁足球鞋");
        itemInfo2 = new ItemInfo("匹克太极篮球鞋");
        itemInfo3 = new ItemInfo("林丹羽毛球鞋");
        findViewById(R.id.btn_0).setOnClickListener(this);
        findViewById(R.id.btn_1).setOnClickListener(this);
        findViewById(R.id.btn_2).setOnClickListener(this);
        findViewById(R.id.btn_3).setOnClickListener(this);
    }
    public void onClick(View v){
        Intent intent;
        switch (v.getId()) {
            case R.id.btn_0:
                intent = new Intent();
                intent.putExtra("shoe",itemInfo0);
                setResult(1,intent);
                finish();
                break;
            case R.id.btn_1:
                intent = new Intent();
                intent.putExtra("shoe",itemInfo1);
                setResult(1,intent);
                finish();
                break;
            case R.id.btn_2:
                intent = new Intent();
                intent.putExtra("shoe",itemInfo0);
                setResult(1,intent);
                finish();
                break;
            case R.id.btn_3:
                intent = new Intent();
                intent.putExtra("shoe",itemInfo0);
                setResult(1,intent);
                finish();
                break;
        }
    }
}

ShowActivity

package com.example.tryfirst;
 
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.TextView;
 
public class ShowActivity extends AppCompatActivity {
 
    private TextView tv_name;
    private TextView tv_password;
    private TextView shoe;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_show);
        Intent intent = getIntent();
        String name = intent.getStringExtra("name");
        String password = intent.getStringExtra("password");
        tv_name = (TextView) findViewById(R.id.tv_name);
        tv_password = (TextView) findViewById(R.id.tv_password);
        tv_name.setText("用户名为： " + name);
        tv_password.setText("密码为： " + password);
        shoe = (TextView) findViewById(R.id.tv_food_progress);
    }
    public void click0(View view){
        Intent intent = new Intent(this, FriendActivity.class);
        startActivity(intent);
    }
    public void click1(View view){
        Intent intent = new Intent(this,ShopActivity.class);
        startActivityForResult(intent,1);
    }
    public void click2(View view){
        Intent intent = new Intent(this,ListActivity.class);
        startActivity(intent);
    }
    @Override
    protected void onActivityResult(int requestCode,
                                    int resultCode,Intent data){
        super.onActivityResult(requestCode,resultCode,data);
        if(data !=null){
            if(requestCode==1){
                if(resultCode==1){
                    ItemInfo info =
                            (ItemInfo) data.getSerializableExtra("food");
                    updateProgress(info);
                }
            }
        }
    }
    private void updateProgress(ItemInfo info){shoe.setText(info.getName());
    }
}

ListActivity

package com.example.tryfirst;
 
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
public class ListActivity extends AppCompatActivity {
    private ListView mListView;
    private String[] names = {"郭艾伦aj34"};
    private int[] herd = {R.drawable.l};
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_list);
        mListView = (ListView) findViewById(R.id.lv);
        MyBaseAdapter myAdapter = new MyBaseAdapter();
        mListView.setAdapter(myAdapter);
    }
    class MyBaseAdapter extends BaseAdapter {
        @Override
        public int getCount() {
            return names.length;
        }
 
        @Override
        public Object getItem(int position) {
            return names[position];
        }
 
        @Override
        public long getItemId(int position) {
            return position;
        }
 
        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            //将list.xml文件找出来转化为View对象
            View view = View.inflate(ListActivity.this,R.layout.list,null);
            TextView mTextView = (TextView) view.findViewById(R.id.tv);
            mTextView.setText(names[position]);
            ImageView imageView = (ImageView) view.findViewById(R.id.imge);
            imageView.setBackgroundResource(herd[position]);
            return view;
        }
    }
}

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