Cursor上用法的注意事项
注意要判断Cursor返回的记录是否为空~~ 之前给这个问题卡了很久~ 囧
public SimpleAdapter getlistItem(Cursor c){ ArrayList<HashMap<String,Object>> listItem = new ArrayList<HashMap<String,Object>>(); if (c.getCount()==0) //一定要加这个判断条件~，否则出现cursor越界 return null; c.moveToFirst(); do { int index; HashMap<String, Object> map = new HashMap<String, Object>(); index = c.getColumnIndex(Todolist.TITLE); map.put(Todolist.TITLE, c.getString(index)); index = c.getColumnIndex(Todolist.BEGIN_TIME); map.put(Todolist.BEGIN_TIME,convertTime(c.getLong(index))); index = c.getColumnIndex(Todolist.STATUS); map.put(Todolist.STATUS, drawble[c.getInt(index)]); listItem.add(map); } while (c.moveToNext()); adapter = new SimpleAdapter(this, listItem, R.layout.list_item, new String[]{Todolist.TITLE,Todolist.BEGIN_TIME,Todolist.STATUS}, new int[]{R.id.TextView01,R.id.TextView02,R.id.ImageView01}); return adapter; }PersonActivity.gategory = PersonActivity.dc.query(CategoryList.projection,"_id="+tag, null, null);/* * 记得移动光标，因为刚开得到的cursor没有指向任何记录位置的~ 惨痛的教训！ */PersonActivity.gategory.moveToFirst();showtype.setText("类型："+PersonActivity.gategory.getString(1));