thoerup/traininfo/TimetableList.java

package dk.thoerup.traininfo;


import static dk.thoerup.traininfo.R.string.generic_cancel;
import static dk.thoerup.traininfo.R.string.generic_retry;
import static dk.thoerup.traininfo.R.string.timetablelist_fetchdata;
import static dk.thoerup.traininfo.R.string.timetablelist_fetcherror;
import static dk.thoerup.traininfo.R.string.timetablelist_nodata;

import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.widget.ListView;
import android.widget.TextView;
import dk.thoerup.traininfo.provider.ProviderFactory;
import dk.thoerup.traininfo.provider.TimetableProvider;
import dk.thoerup.traininfo.util.MessageBox;

public class TimetableList extends Activity {
        
        private static final int DLG_PROGRESS = 8000;
        DepartureBean departure;
        TimetableListAdapter adapter;
        TimetableFetcher fetcher;
        List<TimetableBean> timetables;
        
        TimetableProvider provider; 

        @SuppressWarnings("unchecked")
        @Override
        protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.timetablelist);
                
                provider = ProviderFactory.getTimetableProvider();
                
                adapter = new TimetableListAdapter(this);
                
                ListView lv = (ListView) findViewById(R.id.List);
                lv.setAdapter(adapter);

                
                Intent launchedBy = getIntent();
                departure = (DepartureBean) launchedBy.getSerializableExtra("departure");
                
                ((TextView)findViewById(R.id.Train)).setText(departure.getTrainNumber());
                ((TextView)findViewById(R.id.Status)).setText(departure.getStatus());
                ((TextView)findViewById(R.id.Location)).setText(departure.getLocation());
                ((TextView)findViewById(R.id.Note)).setText(departure.getNote());
                ((TextView)findViewById(R.id.Updated)).setText(departure.getLastUpdateString(this));
                                                
                
                if (savedInstanceState == null) {
                        startTimetableFetcher();
                } else {
                        timetables = (List<TimetableBean>) savedInstanceState.getSerializable("timetables");
                        adapter.setTimetable(timetables);
                }
        }
        
    @Override 
    public void onSaveInstanceState(Bundle outState) 
    {           
        dismissDialog(DLG_PROGRESS);
        outState.putSerializable("timetables", (ArrayList<TimetableBean>) timetables);
    }

        
        @Override
        protected void onPrepareDialog(int id, Dialog dialog) {
                super.onPrepareDialog(id, dialog);
                
                switch (id) {
                case DLG_PROGRESS:
                        //pgDialog = (ProgressDialog) dialog;
                        break;
                }
        }
        
        @Override
        protected Dialog onCreateDialog(int id) {
                switch (id) {
                case DLG_PROGRESS:
                        ProgressDialog dlg = new ProgressDialog(this);                  
                        dlg.setMessage( getString(timetablelist_fetchdata) );
                        dlg.setCancelable(true);
                        return dlg;                     
                default:
                        return super.onCreateDialog(id);                
                }
        }

        void startTimetableFetcher() {
                showDialog(DLG_PROGRESS);
                fetcher = new TimetableFetcher(); 
                fetcher.execute(departure.getType(), departure.getTrainNumber());
        }
        
        class TimetableFetcher extends AsyncTask<String,Void,Void> {
                
                boolean success;
                
                @Override
                protected void onPostExecute(Void result) {
                        super.onPostExecute(result);
                        dismissDialog(DLG_PROGRESS);
        
                        
                        if (success) {
                                adapter.setTimetable(timetables);
                                if (timetables.size() == 0) {
                                        MessageBox.showMessage(TimetableList.this, getString(timetablelist_nodata));
                                }
                        } else { // communication or parse error
                                AlertDialog.Builder builder = new AlertDialog.Builder(TimetableList.this);                                              
                                builder.setMessage(getString(timetablelist_fetcherror));
                                builder.setCancelable(true);
                                builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                                startTimetableFetcher();
                                                
                                        }
                                });
                                builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                        }                                                       
                                });
                                
                                try {
                                        builder.show();
                                } catch (android.view.WindowManager.BadTokenException e) {                                      
                                        Log.i("TimetableList", "BadTokenException"); // this can happen if the user switched away from this activity, while doInBackground was running
                                }
                                                                
                        }
                        
                }
                
                @Override
                protected Void doInBackground(String... arg0) {
                        String type = arg0[0];
                        String trainID = arg0[1];
                        success = provider.lookupTimetable(type, trainID);
                        timetables = provider.getTimetable(type, trainID);
                        
                        return null;
                }
                
        }
}
1	torben	362	package dk.thoerup.traininfo;
2
3	torben	365
4	torben	630	import static dk.thoerup.traininfo.R.string.generic_cancel;
5			import static dk.thoerup.traininfo.R.string.generic_retry;
6			import static dk.thoerup.traininfo.R.string.timetablelist_fetchdata;
7			import static dk.thoerup.traininfo.R.string.timetablelist_fetcherror;
8			import static dk.thoerup.traininfo.R.string.timetablelist_nodata;
9
10	torben	365	import java.util.ArrayList;
11			import java.util.List;
12
13	torben	366	import android.app.Activity;
14	torben	365	import android.app.AlertDialog;
15			import android.app.Dialog;
16			import android.app.ProgressDialog;
17			import android.content.DialogInterface;
18	torben	364	import android.content.Intent;
19	torben	365	import android.os.AsyncTask;
20	torben	362	import android.os.Bundle;
21	torben	630	import android.util.Log;
22	torben	366	import android.widget.ListView;
23	torben	362	import android.widget.TextView;
24	torben	365	import dk.thoerup.traininfo.provider.ProviderFactory;
25			import dk.thoerup.traininfo.provider.TimetableProvider;
26			import dk.thoerup.traininfo.util.MessageBox;
27	torben	362
28	torben	366	public class TimetableList extends Activity {
29	torben	364
30	torben	365	private static final int DLG_PROGRESS = 8000;
31	torben	364	DepartureBean departure;
32	torben	365	TimetableListAdapter adapter;
33			TimetableFetcher fetcher;
34			List<TimetableBean> timetables;
35	torben	364
36	torben	365	TimetableProvider provider;
37
38			@SuppressWarnings("unchecked")
39	torben	362	@Override
40			protected void onCreate(Bundle savedInstanceState) {
41			super.onCreate(savedInstanceState);
42			setContentView(R.layout.timetablelist);
43	torben	364
44	torben	365	provider = ProviderFactory.getTimetableProvider();
45
46			adapter = new TimetableListAdapter(this);
47
48	torben	366	ListView lv = (ListView) findViewById(R.id.List);
49			lv.setAdapter(adapter);
50
51
52	torben	364	Intent launchedBy = getIntent();
53			departure = (DepartureBean) launchedBy.getSerializableExtra("departure");
54
55			((TextView)findViewById(R.id.Train)).setText(departure.getTrainNumber());
56			((TextView)findViewById(R.id.Status)).setText(departure.getStatus());
57	torben	398	((TextView)findViewById(R.id.Location)).setText(departure.getLocation());
58	torben	364	((TextView)findViewById(R.id.Note)).setText(departure.getNote());
59	torben	563	((TextView)findViewById(R.id.Updated)).setText(departure.getLastUpdateString(this));
60	torben	366
61	torben	365
62			if (savedInstanceState == null) {
63			startTimetableFetcher();
64			} else {
65			timetables = (List<TimetableBean>) savedInstanceState.getSerializable("timetables");
66			adapter.setTimetable(timetables);
67			}
68	torben	362	}
69	torben	365
70			@Override
71			public void onSaveInstanceState(Bundle outState)
72			{
73			dismissDialog(DLG_PROGRESS);
74			outState.putSerializable("timetables", (ArrayList<TimetableBean>) timetables);
75			}
76	torben	364
77	torben	365
78			@Override
79			protected void onPrepareDialog(int id, Dialog dialog) {
80			super.onPrepareDialog(id, dialog);
81
82			switch (id) {
83			case DLG_PROGRESS:
84			//pgDialog = (ProgressDialog) dialog;
85			break;
86			}
87			}
88
89			@Override
90			protected Dialog onCreateDialog(int id) {
91			switch (id) {
92			case DLG_PROGRESS:
93	torben	561	ProgressDialog dlg = new ProgressDialog(this);
94			dlg.setMessage( getString(timetablelist_fetchdata) );
95	torben	365	dlg.setCancelable(true);
96			return dlg;
97			default:
98			return super.onCreateDialog(id);
99			}
100			}
101
102			void startTimetableFetcher() {
103			showDialog(DLG_PROGRESS);
104			fetcher = new TimetableFetcher();
105	torben	699	fetcher.execute(departure.getType(), departure.getTrainNumber());
106	torben	365	}
107
108			class TimetableFetcher extends AsyncTask<String,Void,Void> {
109
110			boolean success;
111
112			@Override
113			protected void onPostExecute(Void result) {
114			super.onPostExecute(result);
115			dismissDialog(DLG_PROGRESS);
116
117
118			if (success) {
119			adapter.setTimetable(timetables);
120			if (timetables.size() == 0) {
121	torben	561	MessageBox.showMessage(TimetableList.this, getString(timetablelist_nodata));
122	torben	365	}
123			} else { // communication or parse error
124			AlertDialog.Builder builder = new AlertDialog.Builder(TimetableList.this);
125	torben	561	builder.setMessage(getString(timetablelist_fetcherror));
126	torben	365	builder.setCancelable(true);
127	torben	561	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
128	torben	365	public void onClick(DialogInterface dialog, int id) {
129			dialog.dismiss();
130			startTimetableFetcher();
131
132			}
133			});
134	torben	561	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
135	torben	365	public void onClick(DialogInterface dialog, int id) {
136			dialog.dismiss();
137			}
138	torben	630	});
139
140			try {
141			builder.show();
142			} catch (android.view.WindowManager.BadTokenException e) {
143			Log.i("TimetableList", "BadTokenException"); // this can happen if the user switched away from this activity, while doInBackground was running
144			}
145
146	torben	365	}
147
148			}
149
150			@Override
151			protected Void doInBackground(String... arg0) {
152	torben	699	String type = arg0[0];
153			String trainID = arg0[1];
154			success = provider.lookupTimetable(type, trainID);
155			timetables = provider.getTimetable(type, trainID);
156	torben	365
157			return null;
158			}
159
160			}
161	torben	362	}