Question

我正在使用“Calls.CONTENT_URI”内容提供商。我已经重新检索了列名，但现在我想让这个内容提供商中的列名为“name”的所有名称。

我的代码如下：

uri = Calls.CONTENT_URI;

    String[] projection = {"name"};
    String selection = null;
    String[] selectionArgs = null;
    String sort = null;


    resolver = getContentResolver();

    cursor = resolver.query(uri, projection, selection, selectionArgs, sort);
    Log.i("TUTORIAL", "counts :"+cursor.getCount());    

    String s;
    cursor.moveToFirst();

    for(int x=0; x<cursor.getCount(); x++){

        s = cursor.getString(x);
        Log.i("TUTORIAL", ""+s);

        //cursor.moveToNext();


    }

但是这只追溯了一个名字。我想列出保存在手机中的所有名字，如：

约翰彼得标记苏茜。。 X

但现在我只得到一个名字：

彼得。希望我已经足够清楚了。

有什么问题？提前感谢您的帮助。

Answer 1

我认为这会对你有帮助

        ArrayList<String> nameList = new ArrayList<String>();
    String[] projection = {"name"};
    String selection = null;
    String[] selectionArgs = null;
    String sort = null;
    resolver = getContentResolver();
    cursor = resolver.query(uri, projection, selection, selectionArgs, sort);
    Log.i("TUTORIAL", "counts :"+cursor.getCount());    
    String s;
    if(cursor.moveToFirst()) {
        do {
            nameList.add(cursor.getString(0));
            //your code
            //s = cursor.getString(x);
            Log.i("TUTORIAL", ""+cursor.getString(0));
        }while(cursor.moveToNext());
    }

Answer 2

你可以尝试这个，它对我有用：

public void readContacts() {
        Cursor cur = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, null,
                null, null, null);
        if (cur.getCount() > 0) {
            while (cur.moveToNext()) {
                if (Integer.parseInt(cur.getString(cur.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER))) > 0) {

                    // Get contact id (id)
                    String id = cur.getString(cur.getColumnIndex(ContactsContract.Contacts._ID));

                    // Get contact name (displayName)
                    String displayName = cur.getString(cur.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));

                }
            }
        }
        cur.close();
    }

Answer 3

这是代码。

public override View GetChildView(int groupPosition, int childPosition, bool isLastChild, View convertView, ViewGroup parent)
{
    var SecondLevelexplv = new CustExpListview(Application.Context);
    SecondLevelexplv.SetAdapter(new SecondLevelAdapter(context));
    SecondLevelexplv.SetGroupIndicator(null);
    SecondLevelexplv.GroupExpand += SecondLevelexplv_GroupExpand;
    SecondLevelexplv.GroupCollapse += SecondLevelexplv_GroupCollapse;
    return SecondLevelexplv;
}

private void SecondLevelexplv_GroupCollapse(object sender, ExpandableListView.GroupCollapseEventArgs e)
{
    AbsListView.LayoutParams lp = new AbsListView.LayoutParams(AbsListView.LayoutParams.MatchParent, 70);
    (sender as CustExpListview).LayoutParameters = lp;
}

private void SecondLevelexplv_GroupExpand(object sender, ExpandableListView.GroupExpandEventArgs e)
{
    //expand the group and the height is the `children count` * `unit height`
    AbsListView.LayoutParams lp = new AbsListView.LayoutParams(AbsListView.LayoutParams.MatchParent, 70 * 5);
    (sender as CustExpListview).LayoutParameters = lp;
}

}

获取内容提供商中的所有名称列表

3 个答案: