리스트뷰 다중 삭제(Android Delete Multiple Selected Item in ListView )

리스트를 long click 후에 선택한 항목을 삭제하면 다중 삭제되는 안드로이드 예제입니다.

 

activity_main.xml

<RelativeLayout 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"
    tools:context=".MainActivity">
 
    <ListView
        android:id="@+id/listview"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
    </ListView>
</RelativeLayout>

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item.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"
    android:background="?android:attr/activatedBackgroundIndicator"
    android:orientation="horizontal">
 
    <ImageView
        android:id="@+id/imageView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@mipmap/ic_launcher" />
 
    <TextView
        android:id="@+id/textView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginLeft="5sp"
        android:textSize="20sp" />
</LinearLayout>

---

MyListViewAdapter.java

package com.asukim.deletemultipleselectedlistview;
 
import java.util.List;
 
import android.content.Context;
import android.util.SparseBooleanArray;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;
 
public class MyListViewAdapter extends ArrayAdapter<String> {
 
    Context myContext;
    LayoutInflater inflater;
    List<String> DataList;
    private SparseBooleanArray mSelectedItemsIds;
 
    //context 와 arrayList를 얻기위한 생성자
    public MyListViewAdapter(Context context, int resourceId, List<String> lists) {
        super(context, resourceId, lists);
        mSelectedItemsIds = new SparseBooleanArray();
        myContext = context;
        DataList = lists;
        inflater = LayoutInflater.from(context);
    }
 
    //아이템 컨테이너 클래스
    private class ViewHolder {
        TextView textView;
        ImageView imageView;
    }
 
    public View getView(int position, View view, ViewGroup parent) {
        final ViewHolder holder;
 
        if (view == null) {
            holder = new ViewHolder();
            view = inflater.inflate(R.layout.item, null);
 
            //item.xml에서 textview를 선택.
            holder.textView = (TextView) view.findViewById(R.id.textView);
 
            //item.xml에서 imageView를 선택.
            holder.imageView = (ImageView) view.findViewById(R.id.imageView);
 
            view.setTag(holder);
        } else {
            holder = (ViewHolder) view.getTag();
        }
 
        //배열중에 해당 position값의 정보를 textView에 출력
        holder.textView.setText(DataList.get(position).toString());
 
        //배열중에 해당 position값의 정보를 imageView에 출력
        holder.imageView.setImageResource(R.mipmap.ic_launcher);
        return view;
    }
 
    @Override
    public void remove(String object) {
        DataList.remove(object);
        notifyDataSetChanged();
    }
 
    //업데이트 또는 삭제 후 목록 가져 오기
    public List<String> getMyList() {
        return DataList;
    }
 
    public void toggleSelection(int position) {
        selectView(position, !mSelectedItemsIds.get(position));
    }
 
    //선택 해제 후 선택 제거
    public void removeSelection() {
        mSelectedItemsIds = new SparseBooleanArray();
        notifyDataSetChanged();
    }
 
    //선택시 체크된 된 항목
    public void selectView(int position, boolean value) {
        if (value)
            mSelectedItemsIds.put(position, value);
        else
            mSelectedItemsIds.delete(position);
        notifyDataSetChanged();
    }
 
    //선택한 항목 수 가져 오기
    public int getSelectedCount() {
        return mSelectedItemsIds.size();
    }
 
    public SparseBooleanArray getSelectedIds() {
        return mSelectedItemsIds;
    }
}

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menu_main.xml

<?xml version="1.0"   encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
 
    <item
        android:id="@+id/selectAll"
        android:title="Select All" />
 
    <item
        android:id="@+id/delete"
        android:title="Delete" />
</menu>

---

MainActivity.java

package com.asukim.deletemultipleselectedlistview;
 
import java.util.ArrayList;
import java.util.List;
 
import android.os.Bundle;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.util.SparseBooleanArray;
import android.view.ActionMode;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.AbsListView.MultiChoiceModeListener;
import android.widget.ListView;
 
public class MainActivity extends Activity {
    List myList;
    ListView listView;
    MyListViewAdapter adapter;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        myList = new ArrayList();
        
        //임시로 데이터 입력
        for (int i = 1; i < 30; i++) {
            myList.add("Item  " + i);
        }
        
        listView = (ListView) findViewById(R.id.listview);
        
        //adapter 생성후 layout이랑 배열 연결
        adapter = new MyListViewAdapter(this, R.layout.item, myList);
        listView.setAdapter(adapter);
        
        //다중 삭제를 위한 선택 모드
        listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE_MODAL);
        listView.setMultiChoiceModeListener(new MultiChoiceModeListener() {
            @Override
            public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
                return false;
            }
 
            @Override
            public void onDestroyActionMode(ActionMode mode) {
            }
 
            @Override
            public boolean onCreateActionMode(ActionMode mode, Menu menu) {
                mode.getMenuInflater().inflate(R.menu.menu_main, menu);
                return true;
            }
 
            @Override
            public boolean onActionItemClicked(final ActionMode mode, MenuItem item) {
                switch (item.getItemId()) {
                    case R.id.selectAll:
                        final int checkedCount = myList.size();
                        
                        //항목을 이미 선택하거나 선택한 경우 제거하거나 선택 취소 후 다시 모두 선택
                        adapter.removeSelection();
                        
                        for (int i = 0; i < checkedCount; i++) {
                            listView.setItemChecked(i, true);
                            //  listviewadapter.toggleSelection(i);
                        }
                        mode.setTitle(checkedCount + "  Selected");
                        return true;
                        
                    case R.id.delete:
                        AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
                        builder.setMessage("선택한 항목을 삭제하겠습니까?");
                        builder.setNegativeButton("No", new OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                            }
                        });
                        builder.setPositiveButton("Yes", new OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                
                                SparseBooleanArray selected = adapter.getSelectedIds();
                                
                                for (int i = (selected.size() - 1); i >= 0; i--) {
                                    if (selected.valueAt(i)) {
                                        String selecteditem = adapter.getItem(selected.keyAt(i));
                                        
                                        //다음에 선택한 항목 제거
                                        adapter.remove(selecteditem);
                                    }
                                }
                                mode.finish();
                                selected.clear();
                            }
                        });
                        
                        AlertDialog alert = builder.create();
                        alert.setIcon(R.mipmap.ic_launcher_round);// dialog  Icon
                        alert.setTitle("Confirmation"); // dialog  Title
                        alert.show();
                        return true;
                    default:
                        return false;
                }
            }
 
            @Override
            public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) {
                final int checkedCount = listView.getCheckedItemCount();
                mode.setTitle(checkedCount + "  Selected");
                adapter.toggleSelection(position);
            }
        });
    }
}

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Git

GitHub - asukim1022/DeleteMultipleSelectedListviewApp

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