Android：通过 CursorLoader 获取联系人列表 - Name/Number/NumberType

Question

我正在加载电话的联系人列表以与 AutoCompleteTextView 一起使用，我想通过测试显示电话类型（工作、家庭等），但现在我只是返回数字类型 ID（1、2、3 )

我如何获得名称：这是下面的代码 - 感谢所有帮助。

static final String[] CONTACTS_SUMMARY_PROJECTION = new String[]
        {
        ContactsContract.CommonDataKinds.Phone._ID,
        ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME,
        ContactsContract.CommonDataKinds.Phone.NUMBER,
        ContactsContract.CommonDataKinds.Phone.TYPE
};

public Loader<Cursor> onCreateLoader(int id, Bundle args)
{
    try
    {
        String SELECTION = "((" + ContactsContract.Contacts.DISPLAY_NAME + " NOTNULL) AND ("
                + ContactsContract.Contacts.DISPLAY_NAME + " != '' )" + "AND (" + ContactsContract.Contacts.HAS_PHONE_NUMBER + "=1))";
        //        + ContactsContract.Contacts.DISPLAY_NAME + " like 'p%' )" + "AND ("+ContactsContract.Contacts.HAS_PHONE_NUMBER +"=1))";

        if (mSelection.length() > 0) {
            SELECTION = "((" + ContactsContract.Contacts.DISPLAY_NAME + " NOTNULL) AND ("
                    + ContactsContract.Contacts.DISPLAY_NAME + " like '" + mSelection + "%' )" + "AND (" + ContactsContract.Contacts.HAS_PHONE_NUMBER + "=1))";
        }

        return new CursorLoader(this, ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                CONTACTS_SUMMARY_PROJECTION, SELECTION, null,
                " DISPLAY_NAME ASC");
    }
    catch(Exception e)
    {
        Log.d(TAG, "onCreateLoader:Exception:" + R.string.Exception + ":" + e.getMessage());
    }
    return null;
}

//光标适配器是这样设置的：

            mAdapter = new SimpleCursorAdapter(this, R.layout.contactview, null,
                    new String[]{ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME, ContactsContract.CommonDataKinds.Phone.NUMBER, ContactsContract.CommonDataKinds.Phone.TYPE},
                    new int[]{R.id.ccontName, R.id.ccontNo, R.id.ccontType}, 0);
            mTxtPhoneNo.setAdapter(mAdapter);

Answer 1

您可以使用Phone.getTypeLabel() 获取电话的正确（本地化）标签。在这种情况下，您的查询还应该选择Phone.LABEL 列，并且该列的值应该作为第三个参数传递给上述方法（如果在光标行中找到的类型是TYPE_CUSTOM，则@987654326 @column 包含实际标签）。

static final String[] PROJECTION = {Phone._ID, Phone.DISPLAY_NAME, 
        Phone.NUMBER, Phone.TYPE, Phone.LABEL};
...
int type = cursor.getInt(cursor.getColumnIndex(Phone.TYPE));
String label = cursor.getString(cursor.getColumnIndex(Phone.LABEL));
CharSequence resolvedLabel = Phone.getTypeLabel(mResources, type, label);

编辑

首先，您更新后的代码仍然没有在投影中包含Phone.LABEL。也许这是您编辑时的疏忽，但无论如何，您都需要选择该列。

其次，SimpleCursorAdapter 只是将列的值转储到相应的视图中。正如我在上面演示的那样，这不足以显示正确的标签，除了SimpleCursorAdapter 提供的逻辑之外，您还需要额外的逻辑。

您可以编写自己的类扩展 CursorAdapter 并将该逻辑包含在 bindView() 中，或者您可以使用 SimpleCursorAdapter.setViewBinder() 并提供如下实现：

mAdapter.setViewBinder(new SimpleCursorAdapter.ViewBinder() {
    @Override
    public boolean onBindView(View view, Cursor cursor, int columnIndex) {
        if (view.getId() == R.id.ccontType) {
            // this view needs the label
            int type = cursor.getInt(cursor.getColumnIndex(Phone.TYPE));
            String label = cursor.getString(cursor.getColumnIndex(Phone.LABEL));
            CharSequence resolvedLabel = Phone.getTypeLabel(view.getResources(), type, label);
            ((TextView) view).setText(resolvedLabel);

            return true; // we've handled the binding for the view
        }

        return false; // allow adapter to use it's own basic logic
    }
});