thoerup/traininfo/ShortcutActivity.java

package dk.thoerup.traininfo;

import java.io.InvalidClassException;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Parcelable;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import dk.thoerup.android.traininfo.common.StationEntry;
import dk.thoerup.traininfo.WelcomeScreen.ListType;
import dk.thoerup.traininfo.provider.OfflineStationProvider;
import dk.thoerup.traininfo.provider.ProviderFactory;
import dk.thoerup.traininfo.util.StationEntryCsv;

public class ShortcutActivity extends Activity {
    
    final static int SHOW_DEPARTURES = 1000;
    final static int SHOW_STATIONS = 2000;
    
    
    StationEntry station;
    Button okBtn;

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

        // Resolve the intent

        final Intent intent = getIntent();
        final String action = intent.getAction();

        // If the intent is a request to create a shortcut, we'll do that and exit

        if (Intent.ACTION_CREATE_SHORTCUT.equals(action)) {
                setContentView(R.layout.shortcut);
                
                OfflineStationProvider osp = (OfflineStationProvider) ProviderFactory.getStationProvider();
                
                try {
                                osp.loadStations(this);
                        }                                                                                               
                        catch (Exception e) {
                                Toast.makeText(this, "" + e.getMessage(), Toast.LENGTH_SHORT).show();
                                Log.e("TrainInfo", "load error", e);
                        }

                
                Button cancelBtn = (Button) findViewById(R.id.shortcut_cancel);
                cancelBtn.setOnClickListener( new OnClickListener() {

                                @Override
                                public void onClick(View v) {
                                        ShortcutActivity.this.setResult(Activity.RESULT_CANCELED);
                                        ShortcutActivity.this.finish();
                                }                       
                });
                
                
                okBtn = (Button) findViewById(R.id.shortcut_ok);
                okBtn.setEnabled(false);
                okBtn.setOnClickListener( new OnClickListener() {
                                @Override
                                public void onClick(View v) {
                                        setupShortcut(station);
                                        finish();
                                }
                });
                Button btn = (Button)findViewById(R.id.nearest);
                btn.setOnClickListener(new StationListener(ListType.ListNearest));
                btn = (Button)findViewById(R.id.search);
                btn.setOnClickListener(new StationListener(ListType.ListSearch));
                btn = (Button)findViewById(R.id.favorites);
                btn.setOnClickListener(new StationListener(ListType.ListFavorites));
                
        } else {        
                //launched by the user clicking on the shortcut
                String stationStr = intent.getStringExtra("station");
                
                if (stationStr != null) { //haven't reproduced it, but got a stacktrace where stationStr apparently was null
                        StationEntry station = StationEntryCsv.fromCSV(stationStr);

                        Intent launcher = new Intent( this, DepartureList.class );
                        launcher.putExtra("stationbean", station);
                        startActivityForResult(launcher, SHOW_DEPARTURES);
                } else {
                        Toast.makeText(this, "Invalid TrainInfo shortcut - please delete and re-create", Toast.LENGTH_LONG).show();
                }
        }
    }

    /**
     * This function creates a shortcut and returns it to the caller.  There are actually two 
     * intents that you will send back.
     * 
     * The first intent serves as a container for the shortcut and is returned to the launcher by 
     * setResult().  This intent must contain three fields:
     * 
     * <ul>
     * <li>{@link android.content.Intent#EXTRA_SHORTCUT_INTENT} The shortcut intent.</li>
     * <li>{@link android.content.Intent#EXTRA_SHORTCUT_NAME} The text that will be displayed with
     * the shortcut.</li>
     * <li>{@link android.content.Intent#EXTRA_SHORTCUT_ICON} The shortcut's icon, if provided as a
     * bitmap, <i>or</i> {@link android.content.Intent#EXTRA_SHORTCUT_ICON_RESOURCE} if provided as
     * a drawable resource.</li>
     * </ul>
     * 
     * If you use a simple drawable resource, note that you must wrapper it using
     * {@link android.content.Intent.ShortcutIconResource}, as shown below.  This is required so
     * that the launcher can access resources that are stored in your application's .apk file.  If 
     * you return a bitmap, such as a thumbnail, you can simply put the bitmap into the extras 
     * bundle using {@link android.content.Intent#EXTRA_SHORTCUT_ICON}.
     * 
     * The shortcut intent can be any intent that you wish the launcher to send, when the user 
     * clicks on the shortcut.  Typically this will be {@link android.content.Intent#ACTION_VIEW} 
     * with an appropriate Uri for your content, but any Intent will work here as long as it 
     * triggers the desired action within your Activity.
     */
    private void setupShortcut(StationEntry station) {
        // First, set up the shortcut intent.  
        Intent shortcutIntent = new Intent(Intent.ACTION_MAIN);
        shortcutIntent.setClassName(this, this.getClass().getName());
        shortcutIntent.putExtra("station", StationEntryCsv.toCSV(station) );

        
        // Then, set up the container intent (the response to the caller)
        Intent intent = new Intent();
        intent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent);
        intent.putExtra(Intent.EXTRA_SHORTCUT_NAME, station.getName() );
        Parcelable iconResource = Intent.ShortcutIconResource.fromContext(this,  R.drawable.train);
        intent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, iconResource);

        
        // Now, return the result to the launcher
        setResult(RESULT_OK, intent);
    }

        @Override
        protected void onActivityResult(int requestCode, int resultCode, Intent data) {
                super.onActivityResult(requestCode, resultCode, data);
                
                switch  (requestCode) {
                case SHOW_DEPARTURES:
                        finish();
                        break;
                        
                case SHOW_STATIONS:
                        if (data != null) {
                                station = (StationEntry) data.getSerializableExtra("station");
                                if (station != null) {
                                        okBtn.setEnabled(true);
                                        
                                        TextView tv = (TextView) findViewById(R.id.current_selection);
                                        tv.setText( station.getName() );
                                        
                                }
                        }
                        break;
                }
        }

        class StationListener implements OnClickListener{
                ListType launchType;
                StationListener(ListType type) {
                        launchType = type;
                }
                
                @Override
                public void onClick(View v) {
                        Intent intent = new Intent(ShortcutActivity.this, StationList.class);
                        intent.putExtra("type", launchType);
                        intent.putExtra("shortcut", true);
                        ShortcutActivity.this.startActivityForResult(intent, SHOW_STATIONS);
                }
                
        }
    
    
}
1	package dk.thoerup.traininfo;
2
3	import java.io.InvalidClassException;
4
5	import android.app.Activity;
6	import android.content.Intent;
7	import android.os.Bundle;
8	import android.os.Parcelable;
9	import android.util.Log;
10	import android.view.View;
11	import android.view.View.OnClickListener;
12	import android.widget.Button;
13	import android.widget.TextView;
14	import android.widget.Toast;
15	import dk.thoerup.android.traininfo.common.StationEntry;
16	import dk.thoerup.traininfo.WelcomeScreen.ListType;
17	import dk.thoerup.traininfo.provider.OfflineStationProvider;
18	import dk.thoerup.traininfo.provider.ProviderFactory;
19	import dk.thoerup.traininfo.util.StationEntryCsv;
20
21	public class ShortcutActivity extends Activity {
22
23	final static int SHOW_DEPARTURES = 1000;
24	final static int SHOW_STATIONS = 2000;
25
26
27	StationEntry station;
28	Button okBtn;
29
30	@Override
31	public void onCreate(Bundle icicle) {
32	super.onCreate(icicle);
33
34	// Resolve the intent
35
36	final Intent intent = getIntent();
37	final String action = intent.getAction();
38
39	// If the intent is a request to create a shortcut, we'll do that and exit
40
41	if (Intent.ACTION_CREATE_SHORTCUT.equals(action)) {
42	setContentView(R.layout.shortcut);
43
44	OfflineStationProvider osp = (OfflineStationProvider) ProviderFactory.getStationProvider();
45
46	try {
47	osp.loadStations(this);
48	}
49	catch (Exception e) {
50	Toast.makeText(this, "" + e.getMessage(), Toast.LENGTH_SHORT).show();
51	Log.e("TrainInfo", "load error", e);
52	}
53
54
55	Button cancelBtn = (Button) findViewById(R.id.shortcut_cancel);
56	cancelBtn.setOnClickListener( new OnClickListener() {
57
58	@Override
59	public void onClick(View v) {
60	ShortcutActivity.this.setResult(Activity.RESULT_CANCELED);
61	ShortcutActivity.this.finish();
62	}
63	});
64
65
66	okBtn = (Button) findViewById(R.id.shortcut_ok);
67	okBtn.setEnabled(false);
68	okBtn.setOnClickListener( new OnClickListener() {
69	@Override
70	public void onClick(View v) {
71	setupShortcut(station);
72	finish();
73	}
74	});
75	Button btn = (Button)findViewById(R.id.nearest);
76	btn.setOnClickListener(new StationListener(ListType.ListNearest));
77	btn = (Button)findViewById(R.id.search);
78	btn.setOnClickListener(new StationListener(ListType.ListSearch));
79	btn = (Button)findViewById(R.id.favorites);
80	btn.setOnClickListener(new StationListener(ListType.ListFavorites));
81
82	} else {
83	//launched by the user clicking on the shortcut
84	String stationStr = intent.getStringExtra("station");
85
86	if (stationStr != null) { //haven't reproduced it, but got a stacktrace where stationStr apparently was null
87	StationEntry station = StationEntryCsv.fromCSV(stationStr);
88
89	Intent launcher = new Intent( this, DepartureList.class );
90	launcher.putExtra("stationbean", station);
91	startActivityForResult(launcher, SHOW_DEPARTURES);
92	} else {
93	Toast.makeText(this, "Invalid TrainInfo shortcut - please delete and re-create", Toast.LENGTH_LONG).show();
94	}
95	}
96	}
97
98	/**
99	* This function creates a shortcut and returns it to the caller. There are actually two
100	* intents that you will send back.
101	*
102	* The first intent serves as a container for the shortcut and is returned to the launcher by
103	* setResult(). This intent must contain three fields:
104	*
105	* <ul>
106	* <li>{@link android.content.Intent#EXTRA_SHORTCUT_INTENT} The shortcut intent.</li>
107	* <li>{@link android.content.Intent#EXTRA_SHORTCUT_NAME} The text that will be displayed with
108	* the shortcut.</li>
109	* <li>{@link android.content.Intent#EXTRA_SHORTCUT_ICON} The shortcut's icon, if provided as a
110	* bitmap, <i>or</i> {@link android.content.Intent#EXTRA_SHORTCUT_ICON_RESOURCE} if provided as
111	* a drawable resource.</li>
112	* </ul>
113	*
114	* If you use a simple drawable resource, note that you must wrapper it using
115	* {@link android.content.Intent.ShortcutIconResource}, as shown below. This is required so
116	* that the launcher can access resources that are stored in your application's .apk file. If
117	* you return a bitmap, such as a thumbnail, you can simply put the bitmap into the extras
118	* bundle using {@link android.content.Intent#EXTRA_SHORTCUT_ICON}.
119	*
120	* The shortcut intent can be any intent that you wish the launcher to send, when the user
121	* clicks on the shortcut. Typically this will be {@link android.content.Intent#ACTION_VIEW}
122	* with an appropriate Uri for your content, but any Intent will work here as long as it
123	* triggers the desired action within your Activity.
124	*/
125	private void setupShortcut(StationEntry station) {
126	// First, set up the shortcut intent.
127	Intent shortcutIntent = new Intent(Intent.ACTION_MAIN);
128	shortcutIntent.setClassName(this, this.getClass().getName());
129	shortcutIntent.putExtra("station", StationEntryCsv.toCSV(station) );
130
131
132	// Then, set up the container intent (the response to the caller)
133	Intent intent = new Intent();
134	intent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent);
135	intent.putExtra(Intent.EXTRA_SHORTCUT_NAME, station.getName() );
136	Parcelable iconResource = Intent.ShortcutIconResource.fromContext(this, R.drawable.train);
137	intent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, iconResource);
138
139
140	// Now, return the result to the launcher
141	setResult(RESULT_OK, intent);
142	}
143
144	@Override
145	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
146	super.onActivityResult(requestCode, resultCode, data);
147
148	switch (requestCode) {
149	case SHOW_DEPARTURES:
150	finish();
151	break;
152
153	case SHOW_STATIONS:
154	if (data != null) {
155	station = (StationEntry) data.getSerializableExtra("station");
156	if (station != null) {
157	okBtn.setEnabled(true);
158
159	TextView tv = (TextView) findViewById(R.id.current_selection);
160	tv.setText( station.getName() );
161
162	}
163	}
164	break;
165	}
166	}
167
168	class StationListener implements OnClickListener{
169	ListType launchType;
170	StationListener(ListType type) {
171	launchType = type;
172	}
173
174	@Override
175	public void onClick(View v) {
176	Intent intent = new Intent(ShortcutActivity.this, StationList.class);
177	intent.putExtra("type", launchType);
178	intent.putExtra("shortcut", true);
179	ShortcutActivity.this.startActivityForResult(intent, SHOW_STATIONS);
180	}
181
182	}
183
184
185	}