将数据显示在listView上并且点击listView时携带数据跳转到其他界面

代码如下：

activity_main.xml

<ListView
            android:id="@+id/account"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:padding="10dp"
            android:divider="@null"
            android:dividerHeight="6dp"
            android:layout_below="@id/btn_add"
            android:scrollbars="none" />

layout_account.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="10dp"
    android:padding="10dp"
    android:background="#999999">

    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">
        <TextView
            android:id="@+id/account_name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="姓名"
            android:textStyle="bold"
            android:textSize="20sp"/>
        <TextView
            android:id="@+id/gang"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="-"
            android:layout_toRightOf="@id/account_name"
            android:textStyle="bold"
            android:textSize="20sp"/>
        <TextView
            android:id="@+id/account_class"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_toRightOf="@id/gang"
            android:text="班级"
            android:textSize="20sp"
            android:textStyle="bold" />
    </RelativeLayout>
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:orientation="vertical">

        <TextView
            android:id="@+id/account_id"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="学号"
            android:textStyle="bold"/>
        <TextView
            android:id="@+id/account_phone"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="电话"
            android:layout_marginTop="5dp"/>
    </LinearLayout>

</RelativeLayout>

此界面效果图为：

 

Adapter.java

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;

import java.util.List;

public class Adapter extends ArrayAdapter {
    private final int resourceId;

    public Adapter(Context context, int textViewResourceId, List<User> objects){
        super(context,textViewResourceId,objects);
        resourceId=textViewResourceId;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent){
        User user = (User) getItem(position); // 获取当前项的Account/实例
        View view = LayoutInflater.from(getContext()).inflate(resourceId, null);//实例化一个对象
        TextView nametv,classtv,idtv,phonetv;
        nametv=view.findViewById(R.id.account_name);
        classtv=view.findViewById(R.id.account_class);
        idtv=view.findViewById(R.id.account_id);
        phonetv=view.findViewById(R.id.account_phone);
        nametv.setText(user.getUserName());
        classtv.setText(user.getUserClass());
        idtv.setText(user.getUserID());
        phonetv.setText(user.getUserPhone());
        return view;
    }
}

MainActivity.java

public class MainActivity extends AppCompatActivity{
    //ListView
    private List<User> accountList=new ArrayList<User>();
    private ListView listView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //ListView
        initAccount();//初始化
        Adapter adapter=new Adapter(MainActivity.this,R.layout.layout_account,accountList);
        listView=findViewById(R.id.account);//绑定listview
        listView.setAdapter(adapter);//设置adapter

        //点击listView，跳转到统计信息界面
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                User user=accountList.get(position);
                Toast.makeText(MainActivity.this,user.toString(),Toast.LENGTH_LONG).show();
                Intent intent=null;
                intent=new Intent(MainActivity.this,InformationActivity.class);
                String user_name=user.getUserName();
                String user_ID=user.getUserID();
                String user_class=user.getUserClass();
                String user_phone=user.getUserPhone();
                Toast.makeText(MainActivity.this,user_name,Toast.LENGTH_LONG).show();
                Toast.makeText(MainActivity.this,user_ID,Toast.LENGTH_LONG).show();
                Toast.makeText(MainActivity.this,user_class,Toast.LENGTH_LONG).show();
                Toast.makeText(MainActivity.this,user_phone,Toast.LENGTH_LONG).show();
                intent.putExtra("User_Name",user_name);
                intent.putExtra("User_ID",user_ID);
                intent.putExtra("User_Class",user_class);
                intent.putExtra("User_Phone",user_phone);
                startActivity(intent);
            }
        });
    }

    private void initAccount(){
        //从数据库里面把数据取出来
        MyDatabaseHelper databaseHelper=new MyDatabaseHelper(this);
        SQLiteDatabase db=databaseHelper.getWritableDatabase();
        Cursor cursor=db.query("user",null,null,null,null,null,null);
        while(cursor.moveToNext()){
            String userName=cursor.getString(cursor.getColumnIndex("userName"));
            String userId=cursor.getString(cursor.getColumnIndex("userID"));
            String userPhone=cursor.getString(cursor.getColumnIndex("userPhone"));
            String userClass=cursor.getString(cursor.getColumnIndex("userClass"));
            User user=new User(userId,userClass,userPhone,userName);
            accountList.add(user);
        }
    }
}

activity_information,xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".InformationActivity">

    <TextView
        android:id="@+id/Info1"
        android:textColor="#000000"
        android:textSize="16sp"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:padding="5dp"
        android:digits="1234567890."
        android:layout_below="@id/back"
        android:layout_marginTop="20dp"
        android:background="#FDDEDE"
        />

    <TextView
        android:id="@+id/Info2"
        android:textColor="#000000"
        android:textSize="16sp"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:padding="5dp"
        android:layout_below="@id/Info1"
        android:layout_marginTop="20dp"
        android:background="#FDDEDE"
        />

    <TextView
        android:id="@+id/Info3"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:layout_below="@id/Info2"
        android:layout_marginTop="20dp"
        android:background="#FDDEDE"
        android:digits="1234567890"
        android:padding="5dp"
        android:textColor="#000000"
        android:textSize="16sp" />

    <TextView
        android:id="@+id/Info4"
        android:textColor="#000000"
        android:textSize="16sp"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:padding="5dp"
        android:layout_below="@id/Info3"
        android:layout_marginTop="20dp"
        android:background="#FDDEDE"
        android:clickable="true"
        />


</RelativeLayout>

InformationActivity.java

public class InformationActivity extends AppCompatActivity {

    private TextView name;
    private TextView ID;
    private TextView Classs;
    private TextView Phone;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_information);

        name=findViewById(R.id.Info1);
        ID=findViewById(R.id.Info2);
        Classs=findViewById(R.id.Info3);
        Phone=findViewById(R.id.Info4);

        Intent intent = getIntent();
        name.setText(intent.getStringExtra("User_Name"));
        ID.setText(intent.getStringExtra("User_ID"));
        Classs.setText(intent.getStringExtra("User_Class"));
        Phone.setText(intent.getStringExtra("User_Phone"));

    }
}

以上即为将数据显示在listView上并且点击listView时携带数据跳转到其他界面的代码