android.arch.lifecycle.MediatorLiveData Java Examples

The following examples show how to use android.arch.lifecycle.MediatorLiveData. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: LocalUserDataSource.java    From MVVM with MIT License 7 votes vote down vote up 
@Override
public LiveData<Lcee<User>> queryUserByUsername(String username) {
    final MediatorLiveData<Lcee<User>> data = new MediatorLiveData<>();
    data.setValue(Lcee.<User>loading());

    data.addSource(userService.queryByUsername(username), new Observer<User>() {
        @Override
        public void onChanged(@Nullable User user) {
            if (null == user) {
                data.setValue(Lcee.<User>empty());
            } else {
                data.setValue(Lcee.content(user));
            }
        }
    });
    return data;
}
Example #2
Source File: ReminderApi.java    From EasyNLU with Apache License 2.0 6 votes vote down vote up 
private void initialize(final Context context){
    executor = Executors.newSingleThreadExecutor();
    busyStatus = new MutableLiveData<>();
    errorMsg = new MutableLiveData<>();
    reminders = new MediatorLiveData<>();

    database = ReminderDatabase.buildDatabase(context);
    reminders.addSource(database.reminderDao().loadAllReminders(), reminders::postValue);

    executor.execute(() -> {
        busyStatus.postValue(true);
        nlu = new ReminderNlu(context);
        scheduler = new ReminderScheduler(context);
        busyStatus.postValue(false);

        Log.i(TAG, "Initialization complete");
    });
}
Example #3
Source File: LocalUserDataSource.java    From MVVM with MIT License 6 votes vote down vote up 
@Override
public LiveData<Lcee<User>> queryUserByUsername(String username) {
    final MediatorLiveData<Lcee<User>> data = new MediatorLiveData<>();
    data.setValue(Lcee.<User>loading());

    data.addSource(userService.queryByUsername(username), new Observer<User>() {
        @Override
        public void onChanged(@Nullable User user) {
            if (null == user) {
                data.setValue(Lcee.<User>empty());
            } else {
                data.setValue(Lcee.content(user));
            }
        }
    });
    return data;
}
Example #4
Source File: LocalProjectDataSource.java    From MVVM with MIT License 6 votes vote down vote up 
@Override
public LiveData<Lcee<Projects>> queryProjects(int page) {
    final MediatorLiveData<Lcee<Projects>> data = new MediatorLiveData<>();
    data.setValue(Lcee.<Projects>loading());

    data.addSource(projectsService.queryProjects(page), new Observer<Projects>() {
        @Override
        public void onChanged(@Nullable Projects projects) {
            if (null == projects) {
                data.setValue(Lcee.<Projects>empty());
            } else {
                // parse items from json
                projects.itemsFromJson();
                data.setValue(Lcee.content(projects));
            }
        }
    });
    return data;
}
Example #5
Source File: LocalUserDataSource.java    From MVVM with MIT License 6 votes vote down vote up 
@Override
public LiveData<Lcee<User>> queryUserByUsername(String username) {
    final MediatorLiveData<Lcee<User>> data = new MediatorLiveData<>();
    data.setValue(Lcee.<User>loading());

    data.addSource(userService.queryByUsername(username), new Observer<User>() {
        @Override
        public void onChanged(@Nullable User user) {
            if (null == user) {
                data.setValue(Lcee.<User>empty());
            } else {
                data.setValue(Lcee.content(user));
            }
        }
    });
    return data;
}
Example #6
Source File: LocalUserDataSource.java    From MVVM with MIT License 6 votes vote down vote up 
@Override
public LiveData<Lcee<User>> queryUserByUsername(String username) {
    final MediatorLiveData<Lcee<User>> data = new MediatorLiveData<>();
    data.setValue(Lcee.<User>loading());

    data.addSource(userService.queryByUsername(username), new Observer<User>() {
        @Override
        public void onChanged(@Nullable User user) {
            if (null == user) {
                data.setValue(Lcee.<User>empty());
            } else {
                data.setValue(Lcee.content(user));
            }
        }
    });
    return data;
}
Example #7
Source File: ReminderViewModel.java    From EasyNLU with Apache License 2.0 5 votes vote down vote up 
public ReminderViewModel(@NonNull Application application) {
    super(application);

    busyStatus = new MediatorLiveData<>();
    errorMsg = new MediatorLiveData<>();
    reminderText = new MutableLiveData<>();
    reminders = new MediatorLiveData<>();
    api = ((ReminderApplication)application).getApi();

    busyStatus.addSource(api.getBusyStatus(), busyStatus::setValue);
    reminders.addSource(api.getReminders(), reminders::setValue);
    errorMsg.addSource(api.getErrorMessages(), errorMsg::setValue);
}
Example #8
Source File: LogcatContentRepository.java    From Fairy with Apache License 2.0 5 votes vote down vote up 
static LiveData<LogcatContent> creat (int id, LiveData<LogcatContent> rawData, String grep) {
    /**
     * ${rawData}变量是Source中的MediatorLiveData
     */
    MediatorLiveData<LogcatContent> rawMediaData = (MediatorLiveData) rawData;
    if (grep.equals("")) {
        writeClearCache(id, GrepFilter.RAW_SIGNAL);
        rawMediaData.setValue(clearCache);
        return rawData;
    }
    rawMediaData.setValue(clearCache);
    return GrepFilter.grepData(rawData, grep);
}
Example #9
Source File: ExampleUnitTest.java    From Fairy with Apache License 2.0 5 votes vote down vote up 
public Holder() {
    data = new MediatorLiveData<>();
    data.addSource(rawData, str -> {
        data.setValue(str);
    });
    transData.setValue(false);
}
Example #10
Source File: MergeResource.java    From Fairy with Apache License 2.0 4 votes vote down vote up 
MergeResource(AppExecutors executors) {
    this.executors = executors;
    result = new MediatorLiveData<>();
}