android ListView中含有按鈕事件實時更新ListView數據案例-2

ListView 控件點擊listview item 實時更新數據案例.

效果如下：

點擊list item 右邊的選中狀態對應的發生改變。

1、佈局文件

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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=".ChoseRoomActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">


        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">

        <ListView
            android:id="@+id/listview_all_room"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:cacheColorHint="@android:color/transparent"
            android:divider="@android:color/transparent"
            android:dividerHeight="0dp"
            android:listSelector="@android:color/transparent"
            android:layout_marginTop="30dp"
            android:layout_marginRight="30dp"
            android:layout_marginLeft="30dp"
            />
        </RelativeLayout>
    </LinearLayout>

</androidx.constraintlayout.widget.ConstraintLayout>

2、activity

package com.jas.activity;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;

import com.jas.adapter.RoomAdapter;
import com.jas.model.RoomModel;

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

public class ChoseRoomActivity extends AppCompatActivity {


    private List<RoomModel> list;
    private ListView listView;
    private RoomAdapter roomAdapter;

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

        list = new ArrayList<>();
        list.add(new RoomModel("0001","客廳"));
        list.add(new RoomModel("0002","主臥"));
        list.add(new RoomModel("0003","次臥"));
        list.add(new RoomModel("0004","廚房"));
        list.add(new RoomModel("0005","衛生間"));
        initView();


    }



    private void initView(){

        listView = findViewById(R.id.listview_all_room);


        roomAdapter = new RoomAdapter(this,list);
        listView.setAdapter(roomAdapter);

        roomAdapter.SetOnClickListener(new RoomAdapter.OnClickListener() {
            @Override
            public void ClickListener(String roomName) {
                setSelected(roomName);
            }
        });

    }


    private void setSelected(String roomName){

        for(RoomModel r : list){
            if(roomName.equals(r.getRoomName())){
                r.setSelected(true);
            }else{
                r.setSelected(false);
            }
        }

        roomAdapter.notifyDataSetChanged();

    }

}

3、RoomAdapter

package com.jas.adapter;

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

import com.jas.activity.R;
import com.jas.model.RoomModel;

import java.util.List;

public class RoomAdapter extends BaseAdapter {


    private List<RoomModel> mlist;
    private LayoutInflater inflater;
    private Context context;
    private OnClickListener onClickListener;

    public RoomAdapter(Context context, List<RoomModel> list) {
        this.context = context;
        this.mlist = list;
        inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    }


    @Override
    public int getCount() {
        return mlist.size();
    }

    @Override
    public Object getItem(int position) {
        return mlist.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if(convertView==null)
        {
            convertView = inflater.inflate(R.layout.item_layout_room,null);
        }
        TextView idView = (TextView)convertView.findViewById(R.id.tv_room);
        ImageView ivView = (ImageView)convertView.findViewById(R.id.iv_status);


        final RoomModel p = mlist.get(position);
        final int pos = position;
        String roomName = p.getRoomName();
        idView.setText(roomName);
        if(p.isSelected()){
            ivView.setImageResource(R.drawable.ic_room_selected);
        }else{
            ivView.setImageResource(R.drawable.ic_room_no_selected);
        }

        idView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if(onClickListener!=null){
                    onClickListener.ClickListener(roomName);
                }
            }
        });

        ivView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if(onClickListener!=null){
                    onClickListener.ClickListener(roomName);
                }
            }
        });

        return convertView;
    }

    public void SetOnClickListener(OnClickListener clickListener){
        onClickListener = clickListener;
    }


    public interface OnClickListener{
         void ClickListener(String name);
    }

}

4、list item 佈局文件，item_layout_room.xml

<?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="wrap_content">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/shape_dev_bg"
        android:orientation="horizontal"
        android:paddingTop="20dp"
        android:paddingBottom="20dp"
        android:layout_marginTop="10dp"
        android:layout_marginBottom="10dp">

        <TextView
            android:id="@+id/tv_room"
            android:layout_weight="1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="12"
            android:textColor="@color/home_txt2"
            android:layout_marginLeft="20dp"
            android:textSize="16sp"></TextView>

        <ImageView
            android:id="@+id/iv_status"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_room_no_selected"
            android:layout_marginRight="20dp"></ImageView>
    </LinearLayout>
</LinearLayout>

5、RoomModel

package com.jas.model;

public class RoomModel {

    public RoomModel() {
    }

    public RoomModel(String roomId, String roomName) {
        this.roomId = roomId;
        this.roomName = roomName;
    }

    private String roomId;

    private String roomName;

    private boolean selected;

    public String getRoomId() {
        return roomId;
    }

    public void setRoomId(String roomId) {
        this.roomId = roomId;
    }

    public String getRoomName() {
        return roomName;
    }

    public void setRoomName(String roomName) {
        this.roomName = roomName;
    }

    public boolean isSelected() {
        return selected;
    }

    public void setSelected(boolean selected) {
        this.selected = selected;
    }
}