更新的代码;但是在运行应用程序时我仍然没有得到任何结果。
我正在使用ParseQueryAdapter;我正在查询用户，所以我正在使用ParseUser;似乎第一部分是对所有类型助产士用户的查询，然后获取我想要的特定类型的数据，将它们设置为TextViews
public class CustomMidwifeAdapter extends ParseQueryAdapter<ParseUser> {
public CustomMidwifeAdapter(Context context) {
// Use the QueryFactory to construct a PQA that will only show
// Todos marked as high-pri
super(context, new ParseQueryAdapter.QueryFactory<ParseUser>() {
public ParseQuery create() {
ParseQuery<ParseUser> query = new ParseQuery<ParseUser>("userType");
query.whereEqualTo("userType", "midwife");
query.findInBackground(new FindCallback<ParseUser>() {
@Override
public void done(List<ParseUser> parseUsers, ParseException e) {
if (e == null ) {
//query was successful
}
else {
//Something went wrong
}
}
});
return query;
}
});
}
public View getItemView(ParseUser object, View view, ViewGroup parent) {
if (view == null) {
view = View.inflate(getContext(), R.layout.activity_midwife_result_list, null);
}
super.getItemView(object, view, parent);
// Add the practicename view
TextView titleTextView = (TextView) view.findViewById(R.id.practicename);
titleTextView.setText(object.getString("practicename"));
// Add education view
TextView EducationView = (TextView) view.findViewById(R.id.education);
EducationView.setText(object.getString("education"));
// Add yearsexperience view
TextView ExperienceView = (TextView) view.findViewById(R.id.yearsinpractice);
ExperienceView.setText(object.getString("yearsinpractice"));
//Add practice philosophy view
TextView PracticePhilosophyView = (TextView) view.findViewById(R.id.practicephilosophy);
PracticePhilosophyView.setText(object.getString("practicephilosophy"));
return view;
}
}
这是活动
public class MidwifeResultList extends Activity {
private ParseQueryAdapter<ParseObject> mainAdapter;
private CustomMidwifeAdapter midwifeListAdapter;
private ListView listView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_custom_list)
//initialize main ParseQueryAdapter
mainAdapter = new ParseQueryAdapter<ParseObject>(this, "userType");
mainAdapter.setTextKey("practicename");
mainAdapter.setTextKey("education");
mainAdapter.setTextKey("yearsinpractice");
mainAdapter.setTextKey("practicephilosophy");
// Initialize the subclass of ParseQueryAdapter
midwifeListAdapter = new CustomMidwifeAdapter(this);
// Initialize ListView and set initial view to mainAdapter
listView = (ListView) findViewById(R.id.lvMidwives);
listView.setAdapter(mainAdapter);
mainAdapter.loadObjects();
}
我查看了我的列表视图，而且ID似乎是正确的。这基于此示例：https://parse.com/tutorials/parse-query-adapter