Question

我在启动Activity时调用此方法。我希望它显示在RecycleView中这是我的代码并给我异常

公共类FirstFragment扩展了Fragment {

//private
String[] username = {"joe", "mido", "star", "fawzy", "mohsen"};
private RecyclerView recyclerView;
TextView textView;
ProgressDialog dialog;
FirstpageAdapter adapter;
View layout;
private final Handler myHandler = new Handler();
List<String> ids = new ArrayList<>();
private final static String TAG = "FIRST_FRAGMENT";
ListView listView;
Runnable updateRunnable;

public FirstFragment() {
    // Required empty public constructor
}

public List<String> getData() {
    List<String> data = new ArrayList<>();
    for (int i = 0; i < username.length; i++) {
        data.add(username[i]);
    }
    return data;
}

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

}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    //new MyTask().execute();
    View layout = inflater.inflate(R.layout.fragment_first, container, false);
    recyclerView=(RecyclerView)layout.findViewById(R.id.firstList);
    recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
    PubNubService.herNow(new Callback() {
        public void successCallback(String channel, Object message) {
            try {
                JSONObject object = new JSONObject(message.toString());
                JSONArray jsonArray = object.getJSONArray("uuids");
                for (int i = 0; i < jsonArray.length(); i++) {
                    ids.add(jsonArray.getString(i));
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
            Log.e(TAG, ids.size() + "");
            Log.e(TAG, message.toString());

                    adapter = new FirstpageAdapter(getActivity(), ids);
            recyclerView.setAdapter(adapter);

        }

        @Override
        public void errorCallback(String s, PubnubError pubnubError) {
            Log.e(TAG, "error Callback" + pubnubError.getErrorString());
        }
    });

    return layout;
}

}

例外

08-01 14：16：06.903 12365-12490 / com.sprintone E / AndroidRuntime：FATAL EXCEPTION：Non-Subscribe-Manager-1384510668-5 处理：com.sprintone，PID：12365 android.view.ViewRootImpl $ CalledFromWrongThreadException：只有创建视图层次结构的原始线程才能触及其视图。在android.view.ViewRootImpl.checkThread（ViewRootImpl.java:6024）在android.view.ViewRootImpl.requestLayout（ViewRootImpl.java:820）在android.view.View.requestLayout（View.java:16431）在android.view.View.requestLayout（View.java:16431）在android.view.View.requestLayout（View.java:16431）在android.view.View.requestLayout（View.java:16431）在android.view.View.requestLayout（View.java:16431）在android.view.View.requestLayout（View.java:16431）在android.support.v4.widget.DrawerLayout.requestLayout（DrawerLayout.java:979）在android.view.View.requestLayout（View.java:16431）在android.view.View.requestLayout（View.java:16431）在android.view.View.requestLayout（View.java:16431）在android.view.View.requestLayout（View.java:16431）在android.support.v7.widget.RecyclerView.requestLayout（RecyclerView.java:2245）在android.support.v7.widget.RecyclerView.setAdapter（RecyclerView.java:564） at com.sprintone.userInterface.Fragment.FirstFragment $ 1.successCallback（FirstFragment.java:101）在com.pubnub.api.PubnubCore.invokeCallback（未知来源）在com.pubnub.api.PubnubCore.invokeCallback（未知来源）在com.pubnub.api.PubnubCore $ 11.handleResponse（未知来源）在com.pubnub.api.NonSubscribeWorker.process（未知来源）在com.pubnub.api.Worker.run（未知来源）在java.lang.Thread.run（Thread.java:841）

Answer 1

如此处Only the original thread that created a view hierarchy can touch its views.

所述

您无法从主线程外部访问ui元素尝试使用AsyncTask

或RunOnUiThread

显然，PubNub回调可以在后台线程上运行，因为在android中你不能像在主线程上从远程服务器获取数据那样操作，以避免请求崩溃请求失败并且你试图访问来自pubnub回调的RecucleView
最好在pubnub回调中获取数据，然后在回调外的视图中设置它

或者您可以委派从pubnub回调中获取日期这里有一些有用的链接 link1
link2

在recycleView android中显示来自hereNow Pubnub的结果数据

1 个答案: