Question

我已经在网上关注了很多教程，但最后我无法得到我想要的东西。在我的所有研究之后，我们终于找到了更好的建议和答案。

我有一个带复选框的列表视图，我需要获取listview的所有选中项目。

这是我的布局：

   <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
       android:id="@+id/lineItem"
       android:layout_width="match_parent"
       android:layout_height="match_parent"
       android:orientation="horizontal" >
    <CheckBox android:id="@+id/chklist"
       android:layout_alignParentLeft="true"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"/>
    <TextView
       android:id="@+id/textView"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:layout_weight="2"
       android:ems="10"
       android:padding="10dp"
       android:textColor="#800080"
       android:textSize="16sp"/>
    </LinearLayout>

我正在使用自定义适配器，并且我收到了所显示的已检查项目：

holder.chk.setOnClickListener(new OnClickListener() {
               @Override
               public void onClick(View v) {
                // TODO Auto-generated method stub
                   String listItemText = holder.txtName.getText()
                            .toString();
                if (holder.chk.isChecked())
                    Toast.makeText(getApplicationContext(),
                            "Checked" + " " + listItemText,
                            Toast.LENGTH_SHORT).show();
                else
                    Toast.makeText(getApplicationContext(),
                            "Unchecked" + " " + listItemText,
                            Toast.LENGTH_SHORT).show();
               }
              });

如何从ListView OnItemClick Listener中获取所有选中的项目：

 lv.setOnItemClickListener(new OnItemClickListener() {
                                @Override
                                public void onItemClick(AdapterView<?> parent,
                                        View view, int position, long id) {

   //Here  I need to get all the checked items

    }
    });

自定义适配器：

public class MyListAdapter extends BaseAdapter {

    public LayoutInflater inflater;
    public Activity context;
    ArrayList<String> arr_calllog_name = new ArrayList<String>();
    boolean[] itemChecked;

    public MyListAdapter(Activity context,
            ArrayList<String> arr_calllog_name) {

        super();
        this.context = context;
        this.arr_calllog_name = arr_calllog_name;
        this.inflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        itemChecked = new boolean[arr_calllog_name.size()];
    }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return arr_calllog_name.size();
    }

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

    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return 0;
    }

    public class ViewHolder {
        CheckBox chk;
        ImageView editimage, delimage;
        TextView txtName;
        LinearLayout row;
    }

    @Override
    public View getView(final int position, View convertView,
            ViewGroup parent) {
        // TODO Auto-generated method stub

        final ViewHolder holder;
        if (convertView == null) {
            holder = new ViewHolder();
            convertView = inflater.inflate(R.layout.list, null);
            holder.chk = (CheckBox) convertView
                    .findViewById(R.id.chklist);
            holder.txtName = (TextView) convertView
                    .findViewById(R.id.textView);
            holder.row = (LinearLayout) convertView
                    .findViewById(R.id.lineItem);
            convertView.setTag(holder);

        } else
            holder = (ViewHolder) convertView.getTag();

        holder.txtName.setText(arr_calllog_name.get(position));

        holder.row.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                /*
                 * Intent i = new Intent(AddItems.this, AddItems.class);
                 * Bundle bundle = new Bundle(); // Add your data from
                 * getFactualResults method // to bundle String listItemText
                 * = holder.txtName.getText().toString();
                 * 
                 * bundle.putString("Listname", listItemText);
                 * i.putStringArrayListExtra("AddedList", MyList); // Add
                 * the bundle to the intent i.putExtras(bundle);
                 * startActivity(i);
                 */

            }
        });

        holder.chk.setOnClickListener(new OnClickListener() {
               @Override
               public void onClick(View v) {
                // TODO Auto-generated method stub
                   String listItemText = holder.txtName.getText()
                            .toString();
                if (holder.chk.isChecked())
                    Toast.makeText(getApplicationContext(),
                            "Checked" + " " + listItemText,
                            Toast.LENGTH_SHORT).show();
                else
                    Toast.makeText(getApplicationContext(),
                            "Unchecked" + " " + listItemText,
                            Toast.LENGTH_SHORT).show();
               }
              });
        return convertView;

    }

}

Answer 1

您的适配器包含列表中的所有项目。在您的情况下，此类项的一个实例应至少包含String（对于textView）和Bool（对于CheckBox）。每当您想要所有复选框的列表时，只需遍历列表项并创建具有真实布尔值的所有项的临时列表。

List<YourListItemObject> checkedItems = new ArrayList<YourListItemObject>();

for (YourListItemObject listItem : adapter.getItems()) {
  if (listItem.getBool()) {
     checkedItems.Add(listItem);
  }
}

Answer 2

尝试使用此功能进行多项选择..

        <ListView
        android:id="@+id/myListView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:choiceMode="multipleChoice"
        />

请参阅此链接http://adanware.blogspot.in/2012/04/android-multiple-selection-listview.html

具有自定义适配器的多选listview android

2 个答案: