com.gmail.at.faint545.activities.DetailsActivity.java Source code

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Here is the source code for com.gmail.at.faint545.activities.DetailsActivity.java

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/* 
 * Copyright 2011 Alex Fu
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *       
 *       http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.gmail.at.faint545.activities;

import java.util.ArrayList;

import org.json.JSONException;
import org.json.JSONObject;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import com.gmail.at.faint545.R;
import com.gmail.at.faint545.Remote;
import com.gmail.at.faint545.fragments.HistoryFragment;
import com.gmail.at.faint545.fragments.HistoryFragment.HistoryFragmentListener;
import com.gmail.at.faint545.fragments.QueueFragment;
import com.gmail.at.faint545.fragments.QueueFragment.QueueFragmentListener;
import com.viewpagerindicator.TitlePageIndicator;
import com.viewpagerindicator.TitleProvider;
import com.viewpagerindicator.TitlePageIndicator.IndicatorStyle;

public class DetailsActivity extends FragmentActivity implements QueueFragmentListener, HistoryFragmentListener {
    private ViewPager mViewPager;
    private TabsAdapter mAdapter;
    private TitlePageIndicator mTitleIndicator;
    private Remote mRemote;
    private AlertDialog errorDialog;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        mRemote = (Remote) getIntent().getParcelableExtra("selected_remote"); // Retrieved the selected remote
        setContentView(R.layout.remote_details);
        setupIndicator();
        super.onCreate(savedInstanceState);
    }

    /*
     * A helper function to create/add tabs to the tab host
     */
    private void setupIndicator() {
        mAdapter = new TabsAdapter(getSupportFragmentManager());
        String queueTitle = getString(R.string.queue_title);
        String historyTitle = getString(R.string.history_title);

        mAdapter.add(QueueFragment.newInstance(mRemote), queueTitle);
        mAdapter.add(HistoryFragment.newInstance(mRemote), historyTitle);

        mViewPager = (ViewPager) findViewById(R.id.remote_details_pager);
        mViewPager.setAdapter(mAdapter);

        mTitleIndicator = (TitlePageIndicator) findViewById(R.id.remote_details_indicator);
        mTitleIndicator.setViewPager(mViewPager);
        mTitleIndicator.setFooterColor(getResources().getColor(R.color.yellow));
        mTitleIndicator.setFooterIndicatorStyle(IndicatorStyle.Triangle);
    }

    /* A helper function to build an alert/error dialog */
    private AlertDialog buildAlertDialog(String message) {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setMessage(message);
        builder.setCancelable(false);
        builder.setNegativeButton(R.string.ok, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                finish();
            }
        });
        return builder.create();
    }

    /* Tabs adapter subclass */
    public static class TabsAdapter extends FragmentPagerAdapter implements TitleProvider {
        private ArrayList<TitleFragment> mFrag = new ArrayList<TitleFragment>();

        /* A custom class to relate a Fragment to a title for TitlePageIndicator */
        private static class TitleFragment {
            public String title;
            public Fragment frag;

            public TitleFragment(Fragment f, String title) {
                this.title = title;
                frag = f;
            }
        }

        public TabsAdapter(FragmentManager supportFragmentManager) {
            super(supportFragmentManager);
        }

        public void add(Fragment fragment, String title) {
            mFrag.add(new TitleFragment(fragment, title));
        }

        @Override
        public Fragment getItem(int position) {
            return mFrag.get(position).frag;
        }

        @Override
        public int getCount() {
            return mFrag.size();
        }

        @Override
        public String getTitle(int position) {
            return mFrag.get(position).title;
        }
    }

    @Override
    public void onConnectionError(String results) {
        String error = null;
        try {
            JSONObject result = new JSONObject(results);
            if (result.has("error")) {
                error = getString(R.string.error_prefix) + result.getString("error");
            } else {
                error = getString(R.string.connect_error);
            }
        } catch (JSONException e) {
            error = getString(R.string.connect_error);
        }

        if (errorDialog == null) {
            errorDialog = buildAlertDialog(error);
        } else {
            errorDialog.setMessage(error);
        }

        if (!errorDialog.isShowing()) {
            errorDialog.show();
        }
    }
}