java - 标记上存在语法错误，需要 AnnotationName - 查询错误

标签 java android android-layout android-fragments parse-platform

我收到了 token 语法错误，AnnotationName 预期出现在以下行:

query.findInBackground(new FindCallback<ParseUser>() {

我一段时间以来一直在尝试排除故障，但仍然遇到困难。

下面是我的完整代码

public class Fragment1 extends Fragment {

    public interface Constants {
          String LOG = "com.dooba.beta";
        } 

    private String currentUserId;
    private ArrayAdapter<String> namesArrayAdapter;
    private ArrayList<String> names;
    private ArrayList<Images> alProfilePicture;
    private ListView usersListView;
    private Button logoutButton;
    String userGender = ParseUser.getCurrentUser().getString("Gender");
    String activityName = ParseUser.getCurrentUser().getString("ActivityName");
    Number maxDistance = ParseUser.getCurrentUser().getNumber("Maximum_Distance");
    String userLookingGender = ParseUser.getCurrentUser().getString("Looking_Gender");
    Number minimumAge = ParseUser.getCurrentUser().getNumber("Minimum_Age");
    Number maximumAge = ParseUser.getCurrentUser().getNumber("Maximum_Age");
    Number userage = ParseUser.getCurrentUser().getNumber("Age");

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        setConversationsList();

    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment1_layout, container, false);


        return view;
    }

private void setConversationsList() {
    currentUserId = ParseUser.getCurrentUser().getObjectId();
    names = new ArrayList<String>();
    alProfilePicture = new ArrayList<Images>(); 

    // String userActivitySelectionName = null;

    ParseQuery<ParseUser> query = ParseUser.getQuery();

    //  query.whereEqualTo("ActivityName",userActivitySelectionName);

    query.whereNotEqualTo("objectId", ParseUser.getCurrentUser().getObjectId());
    // users with Gender = currentUser.Looking_Gender
    query.whereEqualTo("Gender", userLookingGender);
    // users with Looking_Gender = currentUser.Gender
    query.whereEqualTo("Looking_Gender", userGender);
    query.setLimit(1);
    query.whereEqualTo("ActivityName", activityName);
    //query.whereGreaterThanOrEqualTo("Age", minimumAge);
    //query.whereLessThanOrEqualTo("Age", maximumAge);
    query.orderByDescending("Name");

    Log.d(Constants.LOG, "");


    query.findInBackground(new FindCallback() {

        @Override
        public void done(java.util.List<ParseObject> objects,
                ParseException e) {
    ParseQuery<ParseObject> query = ParseQuery.getQuery("User");
    ParseFile image = object.getParseFile("ProfilePicture");


    ParseImageView imageView = (ParseImageView) getView().findViewById(R.id.profilePictureResult);

     // The placeholder will be used before and during the fetch, to be replaced by the fetched image
     // data.
     imageView.setPlaceholder(getResources().getDrawable(R.drawable.profile_pict));
     imageView.setParseFile(image);
     imageView.loadInBackground(new GetDataCallback() {
       @Override
       public void done(byte[] data, ParseException e) {
         Log.i("ParseImageView",
             "Fetched! Data length: " + data.length + ", or exception: " + e.getMessage());
       }
     });
    }



    query.findInBackground(new FindCallback<ParseUser>() {



        public void done(List<ParseUser> userlistname, ParseException e) {
            if (e == null) {
                for (int i=0; i<userlistname.size(); i++) {
                    names.add(userlistname.get(i).get("Name").toString());








                    //       names.add(userList.get(i).getParseObject("ProfilePicture").;


                }




                usersListView = (ListView)getActivity().findViewById(R.id.userlistname);
                namesArrayAdapter =
                        new ArrayAdapter<String>(getActivity().getApplicationContext(),
                                R.layout.user_list_item, names);
                usersListView.setAdapter(namesArrayAdapter);

                usersListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                    @Override
                    public void onItemClick(AdapterView<?> a, View v, int i, long l) {
                        openConversation(names, i);
                    }
                });

            } else {
                Toast.makeText(getActivity().getApplicationContext(),
                        "Error loading user list",
                        Toast.LENGTH_LONG).show();
            }
        }
    });
}




public void openConversation(ArrayList<String> names, int pos) {
    ParseQuery<ParseUser> query = ParseUser.getQuery();
    query.whereEqualTo("Name", names.get(pos));
    query.findInBackground(new FindCallback<ParseUser>() {
        public void done(List<ParseUser> user, ParseException e) {
            if (e == null) {
                Intent intent = new Intent(getActivity().getApplicationContext(), MessagingActivity.class);
                intent.putExtra("RECIPIENT_ID", user.get(0).getObjectId());
                startActivity(intent);
            } else {
                Toast.makeText(getActivity().getApplicationContext(),
                        "Error finding that user",
                        Toast.LENGTH_SHORT).show();
            }
        }
    });
}


}

提前致谢，祝一切顺利。

更新 回应 Rod_Algonquin enter image description here

回应哈雷什 enter image description here

更新2 enter image description here 代码

public class Fragment1 extends Fragment {

    public interface Constants {
        String LOG = "com.dooba.beta";
    }

    private String currentUserId;
    private ArrayAdapter<String> namesArrayAdapter;
    private ArrayList<String> names;
    private ArrayList<Images> alProfilePicture;
    private ListView usersListView;
    private Button logoutButton;
    String userGender = ParseUser.getCurrentUser().getString("Gender");
    String activityName = ParseUser.getCurrentUser().getString("ActivityName");
    Number maxDistance = ParseUser.getCurrentUser().getNumber("Maximum_Distance");
    String userLookingGender = ParseUser.getCurrentUser().getString("Looking_Gender");
    Number minimumAge = ParseUser.getCurrentUser().getNumber("Minimum_Age");
    Number maximumAge = ParseUser.getCurrentUser().getNumber("Maximum_Age");
    Number userage = ParseUser.getCurrentUser().getNumber("Age");

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        setConversationsList();

    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment1_layout, container, false);


        return view;
    }

    private void setConversationsList() {
        currentUserId = ParseUser.getCurrentUser().getObjectId();
        names = new ArrayList<String>();
        alProfilePicture = new ArrayList<Images>();

        // String userActivitySelectionName = null;

        ParseQuery<ParseUser> query = ParseUser.getQuery();

        //  query.whereEqualTo("ActivityName",userActivitySelectionName);

        query.whereNotEqualTo("objectId", ParseUser.getCurrentUser().getObjectId());
        // users with Gender = currentUser.Looking_Gender
        query.whereEqualTo("Gender", userLookingGender);
        // users with Looking_Gender = currentUser.Gender
        query.whereEqualTo("Looking_Gender", userGender);
        query.setLimit(1);
        query.whereEqualTo("ActivityName", activityName);
        //query.whereGreaterThanOrEqualTo("Age", minimumAge);
        //query.whereLessThanOrEqualTo("Age", maximumAge);
        query.orderByDescending("Name");

        Log.d(Constants.LOG, "");


        query.findInBackground(new FindCallback<ParseObject>() {

            public void done(ParseObject object,ParseException e) {

                ParseQuery<ParseObject> query = ParseQuery.getQuery("User");
                ParseFile image = object.getParseFile("ProfilePicture");


                ParseImageView imageView = (ParseImageView) getView().findViewById(R.id.profilePictureResult);

                // The placeholder will be used before and during the fetch, to be replaced by the fetched image
                // data.
                imageView.setPlaceholder(getResources().getDrawable(R.drawable.profile_pict));
                imageView.setParseFile(image);
                imageView.loadInBackground(new GetDataCallback() {
                    @Override
                    public void done(byte[] data, ParseException e) {
                        Log.i("ParseImageView",
                                "Fetched! Data length: " + data.length + ", or exception: " + e.getMessage());
                    }
                });
            }

            @Override
            public void done(List<ParseObject> objects, ParseException e) {
                // TODO Auto-generated method stub

            }});



        query.findInBackground(new FindCallback<ParseUser>() {



            public void done(List<ParseUser> userlistname, ParseException e) {
                if (e == null) {
                    for (int i=0; i<userlistname.size(); i++) {
                        names.add(userlistname.get(i).get("Name").toString());
                    }
                    usersListView = (ListView)getActivity().findViewById(R.id.userlistname);
                    namesArrayAdapter =
                            new ArrayAdapter<String>(getActivity().getApplicationContext(),
                                    R.layout.user_list_item, names);
                    usersListView.setAdapter(namesArrayAdapter);

                    usersListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                        @Override
                        public void onItemClick(AdapterView<?> a, View v, int i, long l) {
                            openConversation(names, i);
                        }
                    });

                } else {
                    Toast.makeText(getActivity().getApplicationContext(),
                            "Error loading user list",
                            Toast.LENGTH_LONG).show();
                }
            }
        });
    }




    public void openConversation(ArrayList<String> names, int pos) {
        ParseQuery<ParseUser> query = ParseUser.getQuery();
        query.whereEqualTo("Name", names.get(pos));
        query.findInBackground(new FindCallback<ParseUser>() {
            public void done(List<ParseUser> user, ParseException e) {
                if (e == null) {
                    Intent intent = new Intent(getActivity().getApplicationContext(), MessagingActivity.class);
                    intent.putExtra("RECIPIENT_ID", user.get(0).getObjectId());
                    startActivity(intent);
                } else {
                    Toast.makeText(getActivity().getApplicationContext(),
                            "Error finding that user",
                            Toast.LENGTH_SHORT).show();
                }
            }
        });
    }


}

更新:

enter image description here

更新了代码4

我遇到了两个问题: 1) 对象无法解析

2) 下面的错误只是黄色下划线，但在 Activity 加载时不会呈现 The method done1(List<ParseUser>, ParseException) from the type new FindCallback<ParseUser>(){} is never used locally

更新5

public class Fragment1 extends Fragment {

    public interface Constants {
        String LOG = "com.dooba.beta";
    }

    private String currentUserId;
    private ArrayAdapter<String> namesArrayAdapter;
    private ArrayList<String> names;
    private ArrayList<String> age;
    private ArrayList<String> headline;
    private ArrayList<String> activityname;

    private ArrayList<Images> alProfilePicture;
    private ListView usersListView;
    private Button logoutButton;
    String userGender = ParseUser.getCurrentUser().getString("Gender");
    String activityName = ParseUser.getCurrentUser().getString("ActivityName");
    Number maxDistance = ParseUser.getCurrentUser().getNumber(
            "Maximum_Distance");
    String userLookingGender = ParseUser.getCurrentUser().getString(
            "Looking_Gender");
    Number minimumAge = ParseUser.getCurrentUser().getNumber("Minimum_Age");
    Number maximumAge = ParseUser.getCurrentUser().getNumber("Maximum_Age");
    Number userage = ParseUser.getCurrentUser().getNumber("Age");

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        setConversationsList();

    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment1_layout, container,
                false);

        return view;
    }

    private void setConversationsList() {
        currentUserId = ParseUser.getCurrentUser().getObjectId();
        names = new ArrayList<String>();
        age = new ArrayList<String>();
        headline = new ArrayList<String>();
        activityname = new ArrayList<String>();

        alProfilePicture = new ArrayList<Images>();

        // String userActivitySelectionName = null;

        ParseQuery<ParseUser> query = ParseUser.getQuery();

        // query.whereEqualTo("ActivityName",userActivitySelectionName);

        query.whereNotEqualTo("objectId", ParseUser.getCurrentUser()
                .getObjectId());
        // users with Gender = currentUser.Looking_Gender
        query.whereEqualTo("Gender", userLookingGender);
        // users with Looking_Gender = currentUser.Gender
        query.whereEqualTo("Looking_Gender", userGender);
        query.setLimit(1);
        query.whereEqualTo("ActivityName", activityName);
        // query.whereGreaterThanOrEqualTo("Age", minimumAge);
        // query.whereLessThanOrEqualTo("Age", maximumAge);
        query.orderByDescending("Name");

        Log.d(Constants.LOG, "");




        query.findInBackground(new FindCallback<ParseUser>() {

            @Override
            public void done(List<ParseUser> users,ParseException e) {

                // Do whatever you need to extract object from "users"
                ParseQuery<ParseObject> query = ParseQuery.getQuery("User");

                ParseFile image = object.getParseFile("ProfilePicture");


                ParseImageView imageView = (ParseImageView) getView().findViewById(R.id.profilePictureResult);

                 // The placeholder will be used before and during the fetch, to be replaced by the fetched image
                 // data.
                 imageView.setPlaceholder(getResources().getDrawable(R.drawable.profile_pict));
                 imageView.setParseFile(image);
                 imageView.loadInBackground(new GetDataCallback() {
                   @Override
                   public void done(byte[] data, ParseException e) {
                     Log.i("ParseImageView",
                         "Fetched! Data length: " + data.length + ", or exception: " + e.getMessage());
                   }


             });
            }
        });

        query.findInBackground(new FindCallback<ParseUser>() {

            public void done(List<ParseUser> userlistname, ParseException e) {
                if (e == null) {
                    for (int i = 0; i < userlistname.size(); i++) {
                        names.add(userlistname.get(i).get("Name").toString());
                    }
                    usersListView = (ListView) getActivity().findViewById(
                            R.id.userlistname);
                    namesArrayAdapter = new ArrayAdapter<String>(getActivity()
                            .getApplicationContext(), R.layout.user_list_item,
                            names);
                    usersListView.setAdapter(namesArrayAdapter);

                    usersListView
                            .setOnItemClickListener(new AdapterView.OnItemClickListener() {
                                @Override
                                public void onItemClick(AdapterView<?> a,
                                                        View v, int i, long l) {
                                    openConversation(names, i);
                                }
                            });

                } else {
                    Toast.makeText(getActivity().getApplicationContext(),
                            "Error loading user list", Toast.LENGTH_LONG)
                            .show();
                }
                }
            });

        }
            query.findInBackground(new FindCallback<ParseUser>() {

            public void done(List<ParseUser> userlistheadline, ParseException e) {
                if (e == null) {
                    for (int i = 0; i < userlistheadline.size(); i++) {
                        headline.add(userlistheadline.get(i).get("Headline")
                                .toString());
                    }
                    usersListView = (ListView) getActivity().findViewById(
                            R.id.userlistheadline);
                    namesArrayAdapter = new ArrayAdapter<String>(getActivity()
                            .getApplicationContext(), R.layout.user_list_all,
                            headline);
                    usersListView.setAdapter(namesArrayAdapter);

                    usersListView
                            .setOnItemClickListener(new AdapterView.OnItemClickListener() {
                                @Override
                                public void onItemClick(AdapterView<?> a,
                                                        View v, int i, long l) {
                                    openConversation(names, i);
                                }
                            });

                } else {
                    Toast.makeText(getActivity().getApplicationContext(),
                            "Error loading user list", Toast.LENGTH_LONG)
                            .show();
                }
            }
        });

    }
            query.findInBackground(new FindCallback<ParseUser>() {

            public void done2(List<ParseUser> userlistage, ParseException e) {
                if (e == null) {
                    for (int i = 0; i < userlistage.size(); i++) {
                        age.add(userlistage.get(i).get("Age").toString());
                    }
                    usersListView = (ListView) getActivity().findViewById(
                            R.id.userlistage);
                    namesArrayAdapter = new ArrayAdapter<String>(getActivity()
                            .getApplicationContext(), R.layout.user_list_item,
                            age);
                    usersListView.setAdapter(namesArrayAdapter);

                    usersListView
                            .setOnItemClickListener(new AdapterView.OnItemClickListener() {
                                @Override
                                public void onItemClick(AdapterView<?> a,
                                                        View v, int i, long l) {
                                    openConversation(names, i);
                                }
                            });

                } else {
                    Toast.makeText(getActivity().getApplicationContext(),
                            "Error loading user list", Toast.LENGTH_LONG)
                            .show();
                }
            }
        });

    }

            query.findInBackground(new FindCallback<ParseUser>() {

            public void done3(List<ParseUser> userlistactivity, ParseException e) {
                if (e == null) {
                    for (int i = 0; i < userlistactivity.size(); i++) {
                        activityname.add(userlistactivity.get(i)
                                .get("ActivityName").toString());
                    }
                    usersListView = (ListView) getActivity().findViewById(
                            R.id.userlistactivityname);
                    namesArrayAdapter = new ArrayAdapter<String>(getActivity()
                            .getApplicationContext(), R.layout.user_list_item,
                            activityname);
                    usersListView.setAdapter(namesArrayAdapter);

                    usersListView
                            .setOnItemClickListener(new AdapterView.OnItemClickListener() {
                                @Override
                                public void onItemClick(AdapterView<?> a,
                                                        View v, int i, long l) {
                                    openConversation(names, i);
                                }
                            });

                } else {
                    Toast.makeText(getActivity().getApplicationContext(),
                            "Error loading user list", Toast.LENGTH_LONG)
                            .show();
                }
            }
        });

    }

    public void openConversation(ArrayList<String> names, int pos) {
        ParseQuery<ParseUser> query = ParseUser.getQuery();
        query.whereEqualTo("Name", names.get(pos));
        query.findInBackground(new FindCallback<ParseUser>() {
            public void done(List<ParseUser> user, ParseException e) {
                if (e == null) {
                    Intent intent = new Intent(getActivity()
                            .getApplicationContext(), MessagingActivity.class);
                    intent.putExtra("RECIPIENT_ID", user.get(0).getObjectId());
                    startActivity(intent);
                } else {
                    Toast.makeText(getActivity().getApplicationContext(),
                            "Error finding that user", Toast.LENGTH_SHORT)
                            .show();
                }
            }
        });
    }

}

任何帮助都会非常有用

最佳答案

尝试替换此代码，希望这能帮助您解决问题。

public class Fragment1 extends Fragment {

    public interface Constants {
        String LOG = "com.dooba.beta";
    }

    private String currentUserId;
    private ArrayAdapter<String> namesArrayAdapter;
    private ArrayList<String> names;
    private ArrayList<String> age;
    private ArrayList<String> headline;
    private ArrayList<String> activityname;

    private ArrayList<Images> alProfilePicture;
    private ListView usersListView;
    private Button logoutButton;
    String userGender = ParseUser.getCurrentUser().getString("Gender");
    String activityName = ParseUser.getCurrentUser().getString("ActivityName");
    Number maxDistance = ParseUser.getCurrentUser().getNumber(
            "Maximum_Distance");
    String userLookingGender = ParseUser.getCurrentUser().getString(
            "Looking_Gender");
    Number minimumAge = ParseUser.getCurrentUser().getNumber("Minimum_Age");
    Number maximumAge = ParseUser.getCurrentUser().getNumber("Maximum_Age");
    Number userage = ParseUser.getCurrentUser().getNumber("Age");

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        setConversationsList();

    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment1_layout, container,
                false);

        return view;
    }

    private void setConversationsList() {
        currentUserId = ParseUser.getCurrentUser().getObjectId();
        names = new ArrayList<String>();
        age = new ArrayList<String>();
        headline = new ArrayList<String>();
        activityname = new ArrayList<String>();

        alProfilePicture = new ArrayList<Images>();

        // String userActivitySelectionName = null;

        ParseQuery<ParseUser> query = ParseUser.getQuery();

        // query.whereEqualTo("ActivityName",userActivitySelectionName);

        query.whereNotEqualTo("objectId", ParseUser.getCurrentUser()
                .getObjectId());
        // users with Gender = currentUser.Looking_Gender
        query.whereEqualTo("Gender", userLookingGender);
        // users with Looking_Gender = currentUser.Gender
        query.whereEqualTo("Looking_Gender", userGender);
        query.setLimit(1);
        query.whereEqualTo("ActivityName", activityName);
        // query.whereGreaterThanOrEqualTo("Age", minimumAge);
        // query.whereLessThanOrEqualTo("Age", maximumAge);
        query.orderByDescending("Name");

        Log.d(Constants.LOG, "");

        ParseQuery<ParseObject> queryo = ParseQuery.getQuery("User");

        queryo.whereNotEqualTo("objectId", ParseUser.getCurrentUser()
                .getObjectId());
        // users with Gender = currentUser.Looking_Gender
        queryo.whereEqualTo("Gender", userLookingGender);
        // users with Looking_Gender = currentUser.Gender
        queryo.whereEqualTo("Looking_Gender", userGender);
        queryo.setLimit(1);
        queryo.whereEqualTo("ActivityName", activityName);
        // query.whereGreaterThanOrEqualTo("Age", minimumAge);
        // query.whereLessThanOrEqualTo("Age", maximumAge);
        queryo.orderByDescending("Name");


        queryo.findInBackground(new FindCallback<ParseObject>() {


            @Override
            public void done(List<ParseObject> object, ParseException e) {
                // TODO Auto-generated method stub
                ParseFile image = object.getParseFile("ProfilePicture");

                ParseImageView imageView = (ParseImageView) getView()
                        .findViewById(R.id.profilePictureResult);

                // The placeholder will be used before and during the fetch, to
                // be replaced by the fetched image
                // data.
                imageView.setPlaceholder(getResources().getDrawable(
                        R.drawable.profile_pict));
                imageView.setParseFile(image);
                imageView.loadInBackground(new GetDataCallback() {
                    @Override
                    public void done(byte[] data, ParseException e) {
                        Log.i("ParseImageView",
                                "Fetched! Data length: " + data.length
                                        + ", or exception: " + e.getMessage());
                    }
                });
            }
        });

        query.findInBackground(new FindCallback<ParseUser>() {

            public void done(List<ParseUser> userlistname, ParseException e) {
                if (e == null) {
                    for (int i = 0; i < userlistname.size(); i++) {
                        names.add(userlistname.get(i).get("Name").toString());
                    }
                    usersListView = (ListView) getActivity().findViewById(
                            R.id.userlistname);
                    namesArrayAdapter = new ArrayAdapter<String>(getActivity()
                            .getApplicationContext(), R.layout.user_list_item,
                            names);
                    usersListView.setAdapter(namesArrayAdapter);

                    usersListView
                            .setOnItemClickListener(new AdapterView.OnItemClickListener() {
                                @Override
                                public void onItemClick(AdapterView<?> a,
                                                        View v, int i, long l) {
                                    openConversation(names, i);
                                }
                            });

                } else {
                    Toast.makeText(getActivity().getApplicationContext(),
                            "Error loading user list", Toast.LENGTH_LONG)
                            .show();
                }
            }

            public void done1(List<ParseUser> userlistheadline, ParseException e) {
                if (e == null) {
                    for (int i = 0; i < userlistheadline.size(); i++) {
                        headline.add(userlistheadline.get(i).get("Headline")
                                .toString());
                    }
                    usersListView = (ListView) getActivity().findViewById(
                            R.id.userlistheadline);
                    namesArrayAdapter = new ArrayAdapter<String>(getActivity()
                            .getApplicationContext(), R.layout.user_list_all,
                            headline);
                    usersListView.setAdapter(namesArrayAdapter);

                    usersListView
                            .setOnItemClickListener(new AdapterView.OnItemClickListener() {
                                @Override
                                public void onItemClick(AdapterView<?> a,
                                                        View v, int i, long l) {
                                    openConversation(names, i);
                                }
                            });

                } else {
                    Toast.makeText(getActivity().getApplicationContext(),
                            "Error loading user list", Toast.LENGTH_LONG)
                            .show();
                }
            }

            public void done2(List<ParseUser> userlistage, ParseException e) {
                if (e == null) {
                    for (int i = 0; i < userlistage.size(); i++) {
                        age.add(userlistage.get(i).get("Age").toString());
                    }
                    usersListView = (ListView) getActivity().findViewById(
                            R.id.userlistage);
                    namesArrayAdapter = new ArrayAdapter<String>(getActivity()
                            .getApplicationContext(), R.layout.user_list_item,
                            age);
                    usersListView.setAdapter(namesArrayAdapter);

                    usersListView
                            .setOnItemClickListener(new AdapterView.OnItemClickListener() {
                                @Override
                                public void onItemClick(AdapterView<?> a,
                                                        View v, int i, long l) {
                                    openConversation(names, i);
                                }
                            });

                } else {
                    Toast.makeText(getActivity().getApplicationContext(),
                            "Error loading user list", Toast.LENGTH_LONG)
                            .show();
                }
            }

            public void done3(List<ParseUser> userlistactivity, ParseException e) {
                if (e == null) {
                    for (int i = 0; i < userlistactivity.size(); i++) {
                        activityname.add(userlistactivity.get(i)
                                .get("ActivityName").toString());
                    }
                    usersListView = (ListView) getActivity().findViewById(
                            R.id.userlistactivityname);
                    namesArrayAdapter = new ArrayAdapter<String>(getActivity()
                            .getApplicationContext(), R.layout.user_list_item,
                            activityname);
                    usersListView.setAdapter(namesArrayAdapter);

                    usersListView
                            .setOnItemClickListener(new AdapterView.OnItemClickListener() {
                                @Override
                                public void onItemClick(AdapterView<?> a,
                                                        View v, int i, long l) {
                                    openConversation(names, i);
                                }
                            });

                } else {
                    Toast.makeText(getActivity().getApplicationContext(),
                            "Error loading user list", Toast.LENGTH_LONG)
                            .show();
                }
            }
        });

    }

    public void openConversation(ArrayList<String> names, int pos) {
        ParseQuery<ParseUser> query = ParseUser.getQuery();
        query.whereEqualTo("Name", names.get(pos));
        query.findInBackground(new FindCallback<ParseUser>() {
            public void done(List<ParseUser> user, ParseException e) {
                if (e == null) {
                    Intent intent = new Intent(getActivity()
                            .getApplicationContext(), MessagingActivity.class);
                    intent.putExtra("RECIPIENT_ID", user.get(0).getObjectId());
                    startActivity(intent);
                } else {
                    Toast.makeText(getActivity().getApplicationContext(),
                            "Error finding that user", Toast.LENGTH_SHORT)
                            .show();
                }
            }
        });
    }

}

关于java - 标记上存在语法错误，需要 AnnotationName - 查询错误，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/25357115/

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