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Android Build a Self-Destructing Message Android App Relating Users in Parse.com Displaying Our List of Friends

Yongshuo Wang
Yongshuo Wang
5,500 Points

My code cannot run.

I got the following exception when I run the code.

03-17 10:19:26.719 1955-1955/me.yongshuo.ribbit E/AndroidRuntime﹕ FATAL EXCEPTION: main Process: me.yongshuo.ribbit, PID: 1955 java.lang.IllegalStateException: Content view not yet created at android.support.v4.app.ListFragment.ensureList(ListFragment.java:328) at android.support.v4.app.ListFragment.getListView(ListFragment.java:222) at me.yongshuo.ribbit.FriendsFragment$1.done(FriendsFragment.java:55) at me.yongshuo.ribbit.FriendsFragment$1.done(FriendsFragment.java:42) at com.parse.Parse$5$1.run(Parse.java:924) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5221) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)

    public void onResume() {

        mCurrentUser = ParseUser.getCurrentUser();

        mFriendsRelation = mCurrentUser.getRelation(ParseConstances.KEY_FRIENDS_RELATION);

        mFriendsRelation.getQuery().findInBackground(new FindCallback<ParseUser>() {
            public void done(List<ParseUser> parseUsers, ParseException e) {
                if (e == null){
                    mFriends = parseUsers;

                    String[] usernames = new String[mFriends.size()];

                    int i = 0;

                    for (ParseUser user : mFriends){
                        usernames[i] = user.getUsername();
                    ArrayAdapter<String> adapter = new ArrayAdapter<String>(getListView().getContext(),

                    AlertDialog.Builder builder = new AlertDialog.Builder(getListView().getContext());

                            .setPositiveButton(android.R.string.ok, null);
                    AlertDialog dialog = builder.create();

                    Log.e(TAG, e.getMessage());

1 Answer

Yongshuo, I think a lot of times you have to use the auto-complete feature when typing out the code, I found that when I didn't use auto-complete Android Studio would not import the required classes. Also some times the classes it suggests to import are not always the first in a list of multiple classes with the same name. I don't know if this will help but it has helped me in the past.

If you look at the errors that are being given you can google what they are. Also, I see content view not created. Did you perhaps miss a step in the setup of the views? Good luck!