thoerup/traininfo/ShortcutActivity.java

package dk.thoerup.traininfo;

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