Example usage for android.support.v4.app LoaderManager getLoader

Introduction

In this page you can find the example usage for android.support.v4.app LoaderManager getLoader.

Prototype

public abstract <D> Loader<D> getLoader(int id);

Source Link

Document

Return the Loader with the given id or null if no matching Loader is found.

Usage

From source file:tv.loilo.promise.support.PromiseLoader.java

public static void cancelLoader(LoaderManager loaderManager, int id) {
    final Loader<?> loader = loaderManager.getLoader(id);
    if (loader == null) {
        return;/*from  w  w  w.j  a v a2 s .c  om*/
    }
    loader.cancelLoad();
}

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From source file:tv.loilo.promise.support.ProgressPromiseLoader.java

public static <TData, TProgress> void attachProgressCallback(LoaderManager loaderManager, int id,
        @NonNull ProgressPromiseLoaderCallbacks<TData, TProgress> loaderCallbacks) {
    final Loader<Result<TData>> loader = loaderManager.getLoader(id);
    if (loader == null) {
        return;//from  www .  j  a  v a  2  s.  c om
    }

    @SuppressWarnings("unchecked")
    final ProgressPromiseLoader<TData, TProgress> promiseLoader = (ProgressPromiseLoader<TData, TProgress>) loader;
    promiseLoader.attachLoaderCallbacks(loaderCallbacks);
}

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From source file:tv.loilo.promise.support.ProgressPromiseLoader.java

public static <TData, TProgress> void detachProgressCallback(LoaderManager loaderManager, int id,
        @NonNull ProgressPromiseLoaderCallbacks<TData, TProgress> loaderCallbacks) {
    final Loader<Result<TData>> loader = loaderManager.getLoader(id);
    if (loader == null) {
        return;//from w w w.ja v a  2 s.  c o  m
    }

    @SuppressWarnings("unchecked")
    final ProgressPromiseLoader<TData, TProgress> promiseLoader = (ProgressPromiseLoader<TData, TProgress>) loader;
    promiseLoader.detachLoaderCallbacks(loaderCallbacks);
}

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From source file:com.example.levelup.core.app.ProgressDialogLoaderCallbacks.java

/**
 * If there's an existing loader, reconnect to it so the callbacks are delivered. This would
 * happen if the user made the request and wandered away from the activity (say, by an incoming
 * call or to check their email) before the loader finished. When they returned, the result
 * would be delivered here. This also dismisses any progress dialogs that may be showing. This
 * method should be called on the start of the activity.
 *//*from   w  w  w.j a va  2  s . c o  m*/
public void reconnectOrDismiss() {
    Fragment fragment = getFragment();

    if (fragment != null) {
        LoaderManager lm = fragment.getLoaderManager();
        Loader<D> existingLoader = lm.getLoader(mLoaderId);

        /*
         * Only call initLoader if there's an existing loader and it's got content waiting to be
         * delivered. This reconnects the loader to the callbacks.
         */
        if (existingLoader != null) {
            lm.initLoader(mLoaderId, null, this);
        } else {
            // This can happen if the result won't be delivered.
            dismissProgressDialog();
        }
    }
}

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From source file:com.github.jobs.ui.fragment.TemplatesListFragment.java

private void queryList() {
    try {/*from   w w w. j a  v  a  2s.  com*/
        FragmentActivity activity = getActivity();
        if (activity == null || !isAdded()) {
            return;
        }
        LoaderManager loaderManager = activity.getSupportLoaderManager();
        Loader<Object> loader = loaderManager.getLoader(TEMPLATES_LOADER_ID);
        if (loader == null) {
            loaderManager.initLoader(TEMPLATES_LOADER_ID, null, this);
        } else {
            loaderManager.restartLoader(TEMPLATES_LOADER_ID, null, this);
        }
    } catch (IllegalStateException e) {
        // happens when activity is closed. We can't use isResumed since it will be false when the activity is
        // not being shown, thus it will cause problems if user loads another screen while this is still loading
    }
}

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From source file:com.gh4a.activities.GistActivity.java

@Override
public void onRefresh() {
    LoaderManager lm = getSupportLoaderManager();
    lm.getLoader(0).onContentChanged();
    lm.getLoader(1).onContentChanged();//from   www.ja va 2s  .co  m
    mGist = null;
    mIsStarred = null;
    setContentShown(false);
    super.onRefresh();
}

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From source file:com.armannds.eldgos.katla.popularmovies.ui.MainActivity.java

private void loadMovies(int movieFilter) {
    showMoviesGrid();/*w ww  .  j  a  v  a 2 s .  c o  m*/
    mMovieFilter = movieFilter;
    LoaderManager loaderManager = getSupportLoaderManager();
    Loader<List<Movie>> movieLoader = loaderManager.getLoader(MOVIE_LOADER);
    if (movieLoader == null) {
        loaderManager.initLoader(MOVIE_LOADER, null, this);
    } else {
        loaderManager.restartLoader(MOVIE_LOADER, null, this);
    }
    setTitle(movieFilter);
}

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From source file:com.gh4a.activities.PullRequestActivity.java

@Override
public void onRefresh() {
    mIssue = null;/*from w w  w.  j a v a 2 s .c o m*/
    mPullRequest = null;
    setContentShown(false);
    mHeader.setVisibility(View.GONE);
    mHeaderColorAttrs = null;
    LoaderManager lm = getSupportLoaderManager();
    for (int i = 0; i < 3; i++) {
        lm.getLoader(i).onContentChanged();
    }
    invalidateTabs();
    super.onRefresh();
}

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From source file:nu.firetech.android.pactrack.frontend.ParcelListFragment.java

@Override
public void refreshDone() {
    LoaderManager lm = getLoaderManager();
    if (lm.getLoader(PARCELS_LOADER_ID) == null) {
        lm.initLoader(PARCELS_LOADER_ID, null, this);
    } else {//from   w w w.ja  v  a 2s . co m
        lm.restartLoader(PARCELS_LOADER_ID, null, this);
    }
}

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From source file:com.example.android.asynctaskloader.MainActivity.java

/**
 * This method retrieves the search text from the EditText, constructs the
 * URL (using {@link NetworkUtils}) for the github repository you'd like to find, displays
 * that URL in a TextView, and finally request that an AsyncTaskLoader performs the GET request.
 *//*from w  ww  . j  ava2 s  .  c  o m*/
private void makeGithubSearchQuery() {
    String githubQuery = mSearchBoxEditText.getText().toString();

    /*
     * If the user didn't enter anything, there's nothing to search for. In the case where no
     * search text was entered but the search button was clicked, we will display a message
     * stating that there is nothing to search for and we will not attempt to load anything.
     *
     * If there is text entered in the search box when the search button was clicked, we will
     * create the URL that will return our Github search results, display that URL, and then
     * pass that URL to the Loader. The reason we pass the URL as a String is simply a matter
     * of convenience. There are other ways of achieving this same result, but we felt this
     * was the simplest.
     */
    if (TextUtils.isEmpty(githubQuery)) {
        mUrlDisplayTextView.setText("No query entered, nothing to search for.");
        return;
    }

    URL githubSearchUrl = NetworkUtils.buildUrl(githubQuery);
    mUrlDisplayTextView.setText(githubSearchUrl.toString());

    Bundle queryBundle = new Bundle();
    queryBundle.putString(SEARCH_QUERY_URL_EXTRA, githubSearchUrl.toString());

    /*
     * Now that we've created our bundle that we will pass to our Loader, we need to decide
     * if we should restart the loader (if the loader already existed) or if we need to
     * initialize the loader (if the loader did NOT already exist).
     *
     * We do this by first store the support loader manager in the variable loaderManager.
     * All things related to the Loader go through through the LoaderManager. Once we have a
     * hold on the support loader manager, (loaderManager) we can attempt to access our
     * githubSearchLoader. To do this, we use LoaderManager's method, "getLoader", and pass in
     * the ID we assigned in its creation. You can think of this process similar to finding a
     * View by ID. We give the LoaderManager an ID and it returns a loader (if one exists). If
     * one doesn't exist, we tell the LoaderManager to create one. If one does exist, we tell
     * the LoaderManager to restart it.
     */
    LoaderManager loaderManager = getSupportLoaderManager();
    Loader<String> githubSearchLoader = loaderManager.getLoader(GITHUB_SEARCH_LOADER);
    if (githubSearchLoader == null) {
        loaderManager.initLoader(GITHUB_SEARCH_LOADER, queryBundle, this);
    } else {
        loaderManager.restartLoader(GITHUB_SEARCH_LOADER, queryBundle, this);
    }
}

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