1. 程式人生 > >Android ListView長按彈出CheckBox,實現全選,反選,批量刪除功能

Android ListView長按彈出CheckBox,實現全選,反選,批量刪除功能

ListView長按彈出CheckBox,實現全選,反選,批量刪除功能.


主佈局:activity_main

<?xml version="1.0" encoding="utf-8"?>
<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"
android:id=
"@+id/main_activity" tools:context="com.pinpaimap.listviewcheckbox.MainActivity"> <ListView android:id="@+id/main_listview" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_above="@+id/lay"/> <LinearLayout android:id="@+id/lay" android:visibility=
"gone" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="#00f0f0" android:layout_alignParentBottom="true" android:weightSum="4" android:orientation="horizontal"> <TextView android:id="@+id/operate_back" android:layout_width="0dp" android:layout_height=
"wrap_content" android:layout_weight="1" android:gravity="center" android:text="返回" android:textSize="22sp" android:background="@drawable/selector" android:paddingTop="5dp" android:paddingBottom="5dp"/> <TextView android:id="@+id/operate_select" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:text="全選" android:textSize="22sp" android:background="@drawable/selector" android:paddingTop="5dp" android:paddingBottom="5dp" /> <TextView android:id="@+id/invert_select" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:text="反選" android:textSize="22sp" android:background="@drawable/selector" android:paddingTop="5dp" android:paddingBottom="5dp"/> <TextView android:id="@+id/operate_delete" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:text="刪除" android:textSize="22sp" android:background="@drawable/selector" android:paddingTop="5dp" android:paddingBottom="5dp"/> </LinearLayout> </RelativeLayout>

item:

<?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="match_parent"
android:descendantFocusability="blocksDescendants"
android:padding="5dp">

    <TextView
android:id="@+id/listview_tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="ListView批量刪除"
android:textSize="22sp"
android:layout_toLeftOf="@+id/listview_select_cb"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
    <CheckBoxandroid:id="@+id/listview_select_cb"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/listview_tv"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignParentTop="true" />
</RelativeLayout>
實體類:ItemBean
public class ItemBean {
    private String msg;
    private boolean isShow; // 是否顯示CheckBox
private boolean isChecked; // 是否選中CheckBox
public String getMsg() {
        return msg;
    }
    public void setMsg(String msg) {
        this.msg = msg;
    }
    public boolean isShow() {
        return isShow;
    }
    public void setShow(boolean isShow) {
        this.isShow = isShow;
    }
    public boolean isChecked() {
        return isChecked;
    }
    public void setChecked(boolean isChecked) {
        this.isChecked = isChecked;
    }
    public ItemBean(String msg, boolean isShow, boolean isChecked) {
        super();
        this.msg = msg;
        this.isShow = isShow;
        this.isChecked = isChecked;
    }
}

自定義adapter:

public class Adapter extends BaseAdapter {

    private LayoutInflater inflater;
    private List<ItemBean> list;
    private OnShowItemClickListener onShowItemClickListener;

    public Adapter(List<ItemBean> list, Context context) {
        this.list = list;
        inflater = LayoutInflater.from(context);
    }

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

    @Override
public Object getItem(int position) {
        return null;
    }

    @Override
public long getItemId(int position) {
        return 0;
    }

    @Override
public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder;
        if (convertView == null) {
            holder = new ViewHolder();
            convertView = inflater.inflate(R.layout.item, null);
            holder.msg = (TextView) convertView.findViewById(R.id.listview_tv);
            holder.cb = (CheckBox) convertView.findViewById(R.id.listview_select_cb);
            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }
        final ItemBean bean = list.get(position);
        // 是否是多選狀態
if (bean.isShow()) {
            holder.cb.setVisibility(View.VISIBLE);
        } else {
            holder.cb.setVisibility(View.GONE);
        }

        holder.msg.setText(bean.getMsg());
        holder.cb.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

            @Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if (isChecked) {
                    bean.setChecked(true);
                } else {
                    bean.setChecked(false);
                }
                // 回撥方法,將Item加入已選
onShowItemClickListener.onShowItemClick(bean);
            }
        });
        // 必須放在監聽後面
holder.cb.setChecked(bean.isChecked());
        return convertView;
    }

    static class ViewHolder {
        TextView msg;
        CheckBox cb;
    }

    public interface OnShowItemClickListener {
        public void onShowItemClick(ItemBean bean);
    }

    public void setOnShowItemClickListener(OnShowItemClickListener onShowItemClickListener) {
        this.onShowItemClickListener = onShowItemClickListener;
    }
}

MainActivity:
public class MainActivity extends AppCompatActivity implements Adapter.OnShowItemClickListener {
    private ListView listView;
    private List<ItemBean> dataList;
    private List<ItemBean> selectList;
    private Adapter adapter;
    private RelativeLayout rootView;
    private LinearLayout opreateView;
    private static boolean isShow; // 是否顯示CheckBox標識
private LinearLayout lay;

    @Override
protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        listView = (ListView) findViewById(R.id.main_listview);
        lay= (LinearLayout) findViewById(R.id.lay);
        dataList = new ArrayList<ItemBean>();
        selectList = new ArrayList<ItemBean>();
        for (int i = 0; i < 20; i++) {
            dataList.add(new ItemBean("item " + i, false, false));
        }
        adapter = new Adapter(dataList, this);
        listView.setAdapter(adapter);
        adapter.setOnShowItemClickListener(this);

        listView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {

            @Override
public boolean onItemLongClick(AdapterView<?> parent, View view,
                                           int position, long id) {
                if (isShow) {
                    return false;
                } else {
                    isShow = true;
                    for (ItemBean bean : dataList) {
                        bean.setShow(true);
                    }
                    adapter.notifyDataSetChanged();
                    showOpervate();
                    listView.setLongClickable(false);
                }
                return true;
            }
        });
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {

            @Override
public void onItemClick(AdapterView<?> parent, View view,
                                    int position, long id) {
                if (isShow) {
                    ItemBean bean = dataList.get(position);
                    boolean isChecked = bean.isChecked();
                    if (isChecked) {
                        bean.setChecked(false);
                    } else {
                        bean.setChecked(true);
                    }
                    adapter.notifyDataSetChanged();
                } else {
                    Toast.makeText(MainActivity.this, dataList.get(position).getMsg(), Toast.LENGTH_SHORT).show();
                }
            }
        });
    }


    public void onShowItemClick(ItemBean bean) {
        if (bean.isChecked() && !selectList.contains(bean)) {
            selectList.add(bean);
        } else if (!bean.isChecked() && selectList.contains(bean)) {
            selectList.remove(bean);
        }
    }

    /**
     * 顯示操作介面
*/
private void showOpervate() {
        lay.setVisibility(View.VISIBLE);
        Animation anim = AnimationUtils.loadAnimation(this, R.anim.operate_in);
        lay.setAnimation(anim);        // 返回、刪除、全選和反選按鈕初始化及點選監聽
TextView tvBack =(TextView) findViewById(R.id.operate_back);
        TextView tvDelete = (TextView) findViewById(R.id.operate_delete);
        TextView tvSelect = (TextView) findViewById(R.id.operate_select);
        TextView tvInvertSelect = (TextView) findViewById(R.id.invert_select);
       tvBack.setOnClickListener(new View.OnClickListener() {

            @Override
public void onClick(View v) {
                if (isShow) {
                    selectList.clear();
                    for (ItemBean bean : dataList) {
                        bean.setChecked(false);
                        bean.setShow(false);
                    }
                    adapter.notifyDataSetChanged();
                    isShow = false;
                    listView.setLongClickable(true);
                    dismissOperate();
                }
            }
        });
        tvSelect.setOnClickListener(new View.OnClickListener() {

            @Override
public void onClick(View v) {for (ItemBean bean : dataList) {
                        if (!bean.isChecked()) {
                            bean.setChecked(true);
                            if (!selectList.contains(bean)) {
                                selectList.add(bean);
                            }
                        }
                    }
                    adapter.notifyDataSetChanged();}
        });
        tvInvertSelect.setOnClickListener(new View.OnClickListener() {
            @Override
public void onClick(View v) {
                for (ItemBean bean : dataList){
                    if (!bean.isChecked()){
                        bean.setChecked(true);
                        if (!selectList.contains(bean)) {
                            selectList.add(bean);
                        }
                    }else {
                        bean.setChecked(false);
                        if (!selectList.contains(bean)) {
                            selectList.remove(bean);
                        }
                    }
                }
                adapter.notifyDataSetChanged();
            }
        });
        tvDelete.setOnClickListener(new View.OnClickListener() {

            @Override
public void onClick(View v) {
                if (selectList != null && selectList.size() > 0) {
                    dataList.removeAll(selectList);
                    adapter.notifyDataSetChanged();
                    selectList.clear();
                } else {
                    Toast.makeText(MainActivity.this, "請選擇條目", Toast.LENGTH_SHORT).show();
                }
            }
        });
    }

    /**
     * 隱藏操作介面
*/
private void dismissOperate() {Animation anim = AnimationUtils.loadAnimation(MainActivity.this, R.anim.operate_out);lay.setVisibility(View.GONE);
            lay.setAnimation(anim);}

    @Override
protected void onResume() {
        super.onResume();}

    @Override
public void onBackPressed() {
        if (isShow) {
            selectList.clear();
            for (ItemBean bean : dataList) {
                bean.setChecked(false);
                bean.setShow(false);
            }
            adapter.notifyDataSetChanged();
            isShow = false;
            listView.setLongClickable(true);
            dismissOperate();
        } else {
            super.onBackPressed();
        }
    }
}

兩個動畫:
<?xml version="1.0" encoding="utf-8"?>
<translatexmlns:android="http://schemas.android.com/apk/res/android"
android:fromYDelta="100%"
android:toYDelta="0"
android:duration="500">
</translate>

<?xml version="1.0" encoding="utf-8"?>
<translate
xmlns:android="http://schemas.android.com/apk/res/android"
android:fromYDelta="0"
android:toYDelta="100%"
android:duration="500">
</translate>