在listView中使用checkBox,checkBox不会有作用如:
setListAdapter( new SimpleCursorAdapter( this,
R.layout.mylist,
data,
new String[] { Datenbank.DB_STATE, Datenbank.DB_NAME },
new int[] { R.id.list_checkbox, R.id.list_text }
) );
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:id="@+id/LinearLayout01"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
>
<CheckBox android:text=""
android:id="@+id/list_checkbox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="false"
></CheckBox>
<TextView android:text=""
android:id="@+id/list_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
></TextView>
</LinearLayout>
数据库的值在里面全都是fouse,而数据库中本身的状态如果是true,但是这个按钮还是false。
那么现在你可以这么用:
public class MyActivity extends ListActivity {
MyAdapter mListAdapter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Cursor myCur = null;
myCur = do_stuff_here_to_obtain_a_cursor_of_query_results();
mListAdapter = new MyAdapter(MyActivity.this, myCur);
setListAdapter(mListAdapter);
}
private class MyAdapter extends ResourceCursorAdapter {
public MyAdapter(Context context, Cursor cur) {
super(context, R.layout.mylist, cur);
}
@Override
public View newView(Context context, Cursor cur, ViewGroup parent) {
LayoutInflater li = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
return li.inflate(R.layout.mylist, parent, false);
}
@Override
public void bindView(View view, Context context, Cursor cur) {
TextView tvListText = (TextView)view.findViewById(R.id.list_text);
CheckBox cbListCheck = (CheckBox)view.findViewById(R.id.list_checkbox);
tvListText.setText(cur.getString(cur.getColumnIndex(Datenbank.DB_NAME)));
cbListCheck.setChecked((cur.getInt(cur.getColumnIndex(Datenbank.DB_STATE))==0? false:true))));
}
}
}
或者
SimpleCursorAdapter cursorAdapter = new SimpleCursorAdapter(/* ur stuff */);
cursorAdapter.setViewBinder(new SimpleCursorAdapter.ViewBinder() {
public boolean setViewValue(View view, Cursor cursor, int columnIndex) {
if(columnIndex == 1) {
CheckBox cb = (CheckBox) view;
cb.setChecked(cursor.getInt(1) > 0);
return true;
}
return false;
}
});