小编The*_*heo的帖子

在下面的Realm示例中,我创建了两个模型.一个叫做Task,另一个叫做User.在Realm的帮助下,我将使用一对一的关系.即.用户"Theo"有一个任务.

所以这是我的模特.

@RealmClass
public class Task implements RealmModel {

public String getId() {
    return id;
}

public void setId(String id) {
    this.id = id;
}

public String getTitle() {
    return title;
}


public void setTitle(String title) {
    this.title = title;
}

public String getDescription() {
    return description;
}

public void setDescription(String description) {
    this.description = description;
}

@PrimaryKey
private String id;
private String title;

public boolean isCompleted() {
    return isCompleted;
}

public void setCompleted(boolean completed) {
    isCompleted = completed;
} …

运行我的应用程序时出现此异常。我该如何解决？

E/AndroidRuntime: FATAL EXCEPTION: main
              Process: theo.testing.realmapplication, PID: 3359
              java.lang.RuntimeException: Unable to start activity ComponentInfo{theo.testing.realmapplication/theo.testing.realmapplication.MainActivity}: java.lang.IllegalStateException: The Realm is already in a write transaction in /Users/cm/Realm/realm-java/realm/realm-library/src/main/cpp/io_realm_internal_SharedRealm.cpp line 113
                  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
                  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
                  at android.app.ActivityThread.-wrap11(ActivityThread.java)
                  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
                  at android.os.Handler.dispatchMessage(Handler.java:102)
                  at android.os.Looper.loop(Looper.java:148)
                  at android.app.ActivityThread.main(ActivityThread.java:5417)
                  at java.lang.reflect.Method.invoke(Native Method)
                  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
               Caused by: java.lang.IllegalStateException: The Realm is already in a write transaction in /Users/cm/Realm/realm-java/realm/realm-library/src/main/cpp/io_realm_internal_SharedRealm.cpp line 113
                  at io.realm.internal.SharedRealm.nativeBeginTransaction(Native Method)
                  at io.realm.internal.SharedRealm.beginTransaction(SharedRealm.java:219)
                  at io.realm.BaseRealm.beginTransaction(BaseRealm.java:328)
                  at io.realm.Realm.beginTransaction(Realm.java:125)
                  at theo.testing.realmapplication.MainFragment$1.execute(MainFragment.java:47)
                  at io.realm.Realm.executeTransaction(Realm.java:1253)
                  at theo.testing.realmapplication.MainFragment.onActivityCreated(MainFragment.java:43)
                  at …

我有以下代码从openweathermap api中检索一些天气数据.AsyncTask类用于此目的.

public class ForecastFragment extends Fragment {
String imageUrl;
ListView listView;
List<WeatherForecastData> WeatherForecastDataList;
String IMG_URL = "http://api.openweathermap.org/img/w/";
Fragment fragment;

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

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    //Inflate xml view and convert it to a View object
    View rootView = inflater.inflate(R.layout.fragment_forecast, container, false);

    //Initialise ListView.
    listView = (ListView) rootView.findViewById(R.id.listView);
    listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            String temp = WeatherForecastDataList.get(position).getWeatherTemperature(); …