物联网专业课程设计：温室监控系统——移动终端篇（LineChart、SQLite( 三 ) _环境监控系统

parent, View view, int position, long id) {TextView shebeihao =view.findViewById(R.id.shebeihao);TextView trwendu = view.findViewById(R.id.trwendu);TextView trshidu = view.findViewById(R.id.trshidu);TextView hwendu = view.findViewById(R.id.hwendu);TextView hshidu =) view.findViewById(R.id.hshidu);TextView guangq =view.findViewById(R.id.guangq);TextView dianliu = view.findViewById(R.id.dianliu);TextView shijian = (TextView) view.findViewById(R.id.shijian);}});}public boolean onCreateOptionsMenu(Menu menu) {super.onCreateOptionsMenu(menu);menu.add(1, 1, 1, "返回");menu.add(1, 2, 1, "删除当前数据");return true;}public boolean onOptionsItemSelected(MenuItem item) {switch (item.getItemId()) {case 1:finish();break;case 2:dbWriter.delete("wenshi", null, null);showAll();break;}return super.onOptionsItemSelected(item);}private void showAll() {Cursor result = dbReader.query("wenshi", null, null, null, null, null, "shijian", null);if (!result.moveToFirst()) { Toast.makeText(getApplicationContext(), "数据表中一个数据也没有！", Toast.LENGTH_LONG).show();}listViewAdapter = new SimpleCursorAdapter(getApplicationContext(), R.layout.item_list, result,new String[]{"device", "trwendu", "trshidu","hwendu","hshidu","guangq","dianliu","shijian"},new int[]{R.id.shebeihao, R.id.trwendu, R.id.trshidu,R.id.hwendu,R.id.hshidu,R.id.guangq,R.id.dianliu,R.id.shijian},CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER);listView.setAdapter(listViewAdapter);}protected void onDestroy() {super.onDestroy();dbReader.close();}}
晚些时候我也会把工程上传到上供大家参考。