我试图让一个基本的矩阵光标运行,但由于某种原因,列表仍然是空的。如果有人能发现代码可能有什么问题,将不胜感激?
String []columns = new String[] {"_id","Title","Desc"} ;
MatrixCursor mc = new MatrixCursor(columns);
startManagingCursor(mc);
for(int i=0; i< 200;i++)
{
mc.addRow(new Object[]{i, "test"+i ,"..."});
}
ListView lv = (ListView)findViewById(R.id.alist);
int [] r = new int[1];
r[0] = R.id.atext; // the id of the textview in test_list_item layout
String [] s= new String[1];
s[0] = mc.getColumnName(1); // the column to be used "Title"
SimpleCursorAdapter adapter = new SimpleCursorAdapter(this,android.R.layout.test_list_item,mc,s,r);
lv.setAdapter(adapter);