Pass Way

若是使用ListActivity的話
主要使用onCreateContextMenu與onContextItemSelected

 

@Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
        menu.add(0, DELETE_ID, 0, R.string.menu_delete);
        //menu.add(0, 1, 1, R.string.menu_Edit);

}


@Override
public boolean onContextItemSelected(MenuItem item) {
switch(item.getItemId()) {
    case DELETE_ID:
    AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
       mDbHelper.deleteStockInfo(info.id);
       fillData(StoreId);
       break;
}
return super.onContextItemSelected(item);
}

若不是使用ListActivity的話
自建一個ListViewMenuListener 去implements OnCreateContextMenuListener
如下

//宣告
private static final int DELETE_ID = 0;
private ListView lv_main;
private ListViewMenuListener l = new ListViewMenuListener();



//在oncreate()裡面 將listview設定長按選單

{
lv_main.setOnCreateContextMenuListener(l);
}

//自建長按選單
private class ListViewMenuListener implements OnCreateContextMenuListener{
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
 menu.add(0, DELETE_ID, 0, R.string.menu_delete);
}
}


//通用的長按選單動作。
public boolean onContextItemSelected(MenuItem item) {
switch(item.getItemId()) {
    case DELETE_ID:
    AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
       mDbHelper.deleteOrderItem(info.id);
       fillCartData();
       break;
}
return super.onContextItemSelected(item);
}