所以我正在制作一部电影琐事游戏。我遇到的问题是在我设置3个列表视图的主用户配置文件页面上。一个用于轮到你的游戏，一个用于等待你的对手的游戏，一个用于完成的游戏。这些列表视图调用Parse.com来获取游戏对象。为了从Parse获取此信息，我需要使用Facebook用户ID提供我的查询。我的代码调用Facebook获取ID，但listview适配器运行大约5毫秒，然后调用Facebook返回ID。当用户刷新页面时，列表正确加载，但是当第一次运行应用程序时，它们是空白的。以下是用户个人资料活动代码：
public class UserProfileActivity extends AppCompatActivity {
ParseLogic mPl;
private WfoAdapter wfoAdapter;
private WoyAdapter woyAdapter;
private CompletedGameAdapter completedGameAdapter;
private TicketSystem mTicketsSytem;
String mMyFbId;
String mMyFbName;
int mTickets;
ListView mWfoListView;
ListView mWoyListView;
ListView mCompletedGameListView;
TextView mmTicketNumber;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mTicketsSytem = new TicketSystem();
mTickets = mTicketsSytem.getTickets();
setContentView(R.layout.activity_user_profile);
new getFbDeets().execute(); //This is where the async task is called
mPl = new ParseLogic();
mWoyListView = (ListView)findViewById(R.id.waitingForYouListView);
mWfoListView = (ListView)findViewById(R.id.waitingForOpponentListView);
mCompletedGameListView = (ListView)findViewById(R.id.completedGameListView);
mmTicketNumber = (TextView)findViewById(R.id.numberOfTickets);
mmTicketNumber.setText(String.valueOf(mTickets));
FaceBookFriends.getFaceBookFriends();
//Testing start game remove when building rest of page
Button button = (Button)findViewById(R.id.startNewGame);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(UserProfileActivity.this, GameStart.class);
startActivity(intent);
}
});
}
@Override
protected void onResume() {
super.onResume();
// Logs 'install' and 'app activate' App Events.
AppEventsLogger.activateApp(this);
mTickets = mTicketsSytem.getTickets();
mmTicketNumber.setText(String.valueOf(mTickets));
populateWoyListView();
populateWfoListView();
populateCompleteListView();
}
@Override
public void onBackPressed(){}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
//create the logout button in action bar
switch (item.getItemId()){
case R.id.logoutButton:
ParseUser.logOut();
ParseUser currentUser = ParseUser.getCurrentUser(); // this will now be null
Intent intent = new Intent(UserProfileActivity.this, WelcomeActivity.class);
startActivity(intent);
}
return super.onOptionsItemSelected(item);
}
public void populateUI() {
populateWoyListView();
populateWfoListView();
populateCompleteListView();
mWoyListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String goTV = ((TextView) view.findViewById(R.id.gameObjectHiddenTextView)).getText().toString();
String score = ((TextView) view.findViewById(R.id.woyScoreNumber)).getText().toString();
Log.v("Clicked Object Id ", goTV);
Intent intent = new Intent(UserProfileActivity.this, AreYouReady.class);
intent.putExtra("Score", score);
intent.putExtra("Object Id", goTV);
startActivity(intent);
}
});
}
private void populateWoyListView() {
//mMfbId is the variable set by the facebook call
woyAdapter = new WoyAdapter(this ,mMyFbId);
woyAdapter.loadObjects();
mWoyListView.setAdapter(woyAdapter);
}
private void populateWfoListView() {
wfoAdapter = new WfoAdapter(this);
wfoAdapter.loadObjects();
mWfoListView.setAdapter(wfoAdapter);
}
private void populateCompleteListView() {
completedGameAdapter = new CompletedGameAdapter(this, mMyFbId);
completedGameAdapter.loadObjects();
mCompletedGameListView.setAdapter(completedGameAdapter);
}
protected class getFbDeets extends AsyncTask<Void, Void, Void>{
@Override
protected Void doInBackground(Void... params) {
mMyFbId = FaceBookFriends.getMyFbId();
mMyFbName = FaceBookFriends.getMyFbName();
Log.v("getFbDeets() ", "Is Running");
return null;
}
@Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
populateUI();
}
}
}
这是已完成的适配器：
/**
* Created by Tom Schinler on 9/23/2015.
*/
public class CompletedGameAdapter extends ParseQueryAdapter<Game> {
String mWinnerScore;
String mWinnerName;
String mLoserScore;
String mLoserName;
String mFbName;
public CompletedGameAdapter(Context context, final String myFbId) {
super(context, new ParseQueryAdapter.QueryFactory<Game>() {
public ParseQuery<Game> create() {
ParseQuery<Game> queryCreatedBy = new ParseQuery<Game>("Game");
queryCreatedBy.whereEqualTo("Created_By", ParseUser.getCurrentUser());
ParseQuery<Game> queryOppOf = new ParseQuery<Game>("Game");
queryOppOf.whereEqualTo("Opponent_Id", myFbId);
ParseQuery<Game> query = ParseQuery.or(Arrays.asList(queryCreatedBy, queryOppOf));
query.whereNotEqualTo("Creator_Score", "");
query.whereNotEqualTo("Opponent_Score", "");
query.orderByDescending("updatedAt");
query.setLimit(4);
return query;
}
});
}
@Override
public View getItemView(Game game, View view, ViewGroup parent) {
if (view == null) {
view = View.inflate(getContext(), R.layout.completed_game_layout, null);
}
super.getItemView(game, view, parent);
mFbName = FaceBookFriends.getMyFbName();
TextView winOrLose = (TextView)view.findViewById(R.id.winOrLose);
int oppScore = Integer.parseInt(game.getOpponentScore());
int creatScore = Integer.parseInt(game.getCreatorScore());
if(oppScore > creatScore){
mWinnerScore = String.valueOf(oppScore);
mWinnerName = game.getOpponentName();
mLoserScore = String.valueOf(creatScore);
mLoserName = game.getCreatorFbName();
}
else {
mWinnerScore = String.valueOf(creatScore);
mWinnerName = game.getCreatorFbName();
mLoserScore = String.valueOf(oppScore);
mLoserName = game.getOpponentName();
}
TextView winnerName = (TextView)view.findViewById(R.id.winnerName);
winnerName.setText(mWinnerName);
TextView winnerScore = (TextView)view.findViewById(R.id.winnerScore);
winnerScore.setText(mWinnerScore);
TextView loserName = (TextView)view.findViewById(R.id.loserName);
loserName.setText(mLoserName);
TextView loserScore = (TextView)view.findViewById(R.id.loserScore);
loserScore.setText(mLoserScore);
if(mWinnerName.equals(mFbName)){
view.setBackgroundColor(Color.GREEN);
winOrLose.setText("WIN!!");
}
else {
view.setBackgroundColor(Color.RED);
winOrLose.setText("LOSER!!");
}
return view;
}
}
这是适配器，它为等待用户的游戏设置listview：
/**
* Created by Tom Schinler on 9/22/2015.
*/
public class WoyAdapter extends ParseQueryAdapter<Game>{
public WoyAdapter(Context context, final String fbId) {
super(context, new ParseQueryAdapter.QueryFactory<Game>() {
public ParseQuery<Game> create() {
//Log.v("var fbid is ", fbId);
ParseQuery query = new ParseQuery("Game");
query.whereEqualTo("Opponent_Id", fbId);
query.whereEqualTo("Opponent_Score", "");
query.orderByDescending("updatedAt");
query.setLimit(4);
return query;
}
});
}
@Override
public View getItemView(Game game, View view, ViewGroup parent) {
if (view == null) {
view = View.inflate(getContext(), R.layout.waiting_on_you_layout, null);
Log.v("WOY is this", "running");
}
super.getItemView(game, view, parent);
ProfilePictureView friendPic = (ProfilePictureView) view.findViewById(R.id.woyFbPic);
String friendId = game.getCreatorId();
if(friendId != null){
friendPic.setProfileId(friendId);
}
TextView oppName = (TextView)view.findViewById(R.id.woyNameText);
oppName.setText(game.getCreatorFbName());
TextView oppScore = (TextView)view.findViewById(R.id.woyScoreNumber);
oppScore.setText(game.getCreatorScore());
TextView GOTV = (TextView)view.findViewById(R.id.gameObjectHiddenTextView);
GOTV.setText(game.getObjectId());
return view;
}
}
我用这样的Facebook方法设置mMyFbId：
mMyFbId = FaceBookFriends.getMyFbId();
但是在代码运行后它返回大约1秒来构建列表视图，因为它们没有变量，它们什么都没有填充。请帮忙。