Android Open Source - TymyApp Discussion Detail Fragment

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License

The source code is released under:

GNU General Public License

Java Source Code

package cz.tymy.api.tymyapp;
/*ww w .j a v  a2  s  .c o  m*/
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.Loader;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ProgressBar;
import android.widget.TextView;

import java.io.IOException;

import cz.tymy.api.tymyapp.apimodel.ApiException;
import cz.tymy.api.tymyapp.apireaders.ApiReader;

/**
 * A fragment representing a single Discussion detail screen.
 * This fragment is either contained in a {@link DiscussionListActivity}
 * in two-pane mode (on tablets) or a {@link DiscussionDetailActivity}
 * on handsets.
 */
public class DiscussionDetailFragment extends ListFragment
        implements LoaderManager.LoaderCallbacks<String>{

    /**
     * The fragment argument representing the item K_ID that this fragment
     * represents.
     */
    public static final String ARG_ITEM_ID = "item_id";

    /**
     * The dummy content this fragment is presenting.
     */
    private String mDsId;

    /**
     * Fragment View
     */
    View mView;

    /**
     * Adapter for PostList view
     */
    private PostAdapter mPostAdapter;

    /**
     * Mandatory empty constructor for the fragment manager to instantiate the
     * fragment (e.g. upon screen orientation changes).
     */
    public DiscussionDetailFragment() {
    }

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

        // Application state singleton.
        TymyApplication appState = (TymyApplication) this.getActivity().getApplication();
        if (getArguments().containsKey(ARG_ITEM_ID)) {
            // Load the dummy content specified by the fragment
            // arguments. In a real-world scenario, use a Loader
            // to load content from a content provider.
            mDsId = getArguments().getString(ARG_ITEM_ID);
            Bundle args = new Bundle();
            args.putString(ApiLoader.CMD, ApiLoader.CMD_POST_LIST);
            args.putString(ApiLoader.DS_ID, mDsId);
            args.putString(ApiLoader.USER, appState.getUser());
            args.putString(ApiLoader.PASS, appState.getPass());
            args.putString(ApiLoader.SITE_URL, appState.getUrl());
            getLoaderManager().initLoader(Integer.parseInt(mDsId), args, this);
        }

        mPostAdapter = new PostAdapter(getActivity(), R.layout.row_post_layout);
        setListAdapter(mPostAdapter);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        mView = inflater.inflate(R.layout.fragment_posts_list, container, false);
        return mView;
    }

    public void setTitle(String title) {
        TymyApplication appState = (TymyApplication) this.getActivity().getApplication();
        this.getActivity().setTitle(appState.getName() + " / " + title);
    }

//    @Override
//    public void onViewCreated(View view, Bundle savedInstanceState) {
//        super.onCreate(savedInstanceState);
//    }

    /**
     * Set Custom Empty text
     * @param text Empty text
     */
    @Override
    public void setEmptyText(CharSequence text) {
        LayoutInflater inflater = getActivity().getLayoutInflater();
        TextView empty = (TextView) mView.findViewById(android.R.id.empty);
        disableProgressBar();
        empty.setText(text);
    }

    private void disableProgressBar() {
        ProgressBar progress = (ProgressBar) mView.findViewById(R.id.progress_bar);
        progress.setVisibility(View.GONE);
    }


    @Override
    public Loader<String> onCreateLoader(int i, Bundle args) {
        Log.v(DiscussionListActivity.TAG, "onCreateLoader");
        return new ApiLoader(getActivity(), args);
    }

    @Override
    public void onLoadFinished(Loader<String> stringLoader, String results) {
        Log.v(DiscussionListActivity.TAG, results);
        ApiReader ar = new ApiReader();
        mPostAdapter.clear();
        try {
            mPostAdapter.addAll(ar.readApiDsPostList(results));
        } catch (IOException e) {
            e.printStackTrace();
        } catch (ApiException e) {
            this.setEmptyText(getResources().getString(R.string.error) + ": " + e.getMessage());
            return;
        }
        setTitle(mPostAdapter.getDsDetail().getDs().getCaption());
        disableProgressBar();
    }

    @Override
    public void onLoaderReset(Loader<String> stringLoader) {
    }
}

Java Source Code List

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