1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
| /*
* Copyright (C) 2015 The Android Open Source Project
*
* 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.yassin.stage.midible;
import android.Manifest;
import android.app.Activity;
import android.bluetooth.BluetoothDevice;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.media.midi.MidiDevice;
import android.media.midi.MidiDeviceInfo;
import android.media.midi.MidiDeviceStatus;
import android.media.midi.MidiManager;
import android.media.midi.MidiManager.DeviceCallback;
import android.media.midi.MidiOutputPort;
import android.media.midi.MidiReceiver;
import android.os.Bundle;
import android.os.Looper;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import java.io.Closeable;
import java.io.IOException;
import java.io.Serializable;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
/*
* App that provides a MIDI echo service.
*/
public class MidiConnection extends Activity implements Serializable {
private MidiDevice gant;
private static final String TAG = "MidiConnection";
private transient Button b;
private MidiManager mMidiManager;
private OpenDeviceListAdapter mOpenDeviceListAdapter;
private static final int REQUEST_BLUETOOTH_SCAN = 1;
public MidiConnection(){
}
/**
* Classe représentant un appareil Bluetooth
* Ses informations seront affichés lors d'un scan
*/
static class BluetoothMidiDeviceTracker implements Serializable{
final public BluetoothDevice bluetoothDevice;
final public MidiDevice midiDevice;
public int inputOpenCount;
public int outputOpenCount;
/** Constructeur
* @param bluetoothDevice
* @param midiDevice
*/
public BluetoothMidiDeviceTracker(BluetoothDevice bluetoothDevice, MidiDevice midiDevice) {
this.bluetoothDevice = bluetoothDevice;
this.midiDevice = midiDevice;
}
@Override
/**
* Code de l'appareil
*/
public int hashCode() {
return midiDevice.getInfo().hashCode();
}
@Override
public boolean equals(Object o) {
if (o instanceof BluetoothMidiDeviceTracker) {
BluetoothMidiDeviceTracker other = (BluetoothMidiDeviceTracker) o;
return midiDevice.getInfo().equals(other.midiDevice.getInfo());
} else {
return false;
}
}
public MidiDevice getMidiDevice(){
return this.midiDevice;
}
}
public MidiDevice getMidiDevice(){
return this.gant;
}
/**
* Classe permettant de stocker tous les éléments de l'UI de l'activité
*/
static class ViewHolder implements Serializable{
TextView deviceName;
TextView deviceStatus;
transient Button closeButton;
}
// Adapter for holding open devices.
/**
* Cette classe permet de contenir toute la liste des appareils
*/
private class OpenDeviceListAdapter extends BaseAdapter implements Serializable {
private ArrayList<BluetoothMidiDeviceTracker> mOpenDevices;
private LayoutInflater mInflator;
private HashMap<MidiDeviceInfo, BluetoothMidiDeviceTracker> mInfoTrackerMap = new HashMap<MidiDeviceInfo, BluetoothMidiDeviceTracker>();
public OpenDeviceListAdapter() {
super();
mOpenDevices = new ArrayList<BluetoothMidiDeviceTracker>();
mInflator = MidiConnection.this.getLayoutInflater();
}
public void addDevice(BluetoothMidiDeviceTracker deviceTracker) {
if (!mOpenDevices.contains(deviceTracker)) {
mOpenDevices.add(deviceTracker);
MidiDeviceInfo info = deviceTracker.midiDevice.getInfo();
mInfoTrackerMap.put(info, deviceTracker);
notifyDataSetChanged();
}
}
/** Retirer l'appareil connecté
* @param info
*/
public void remove(MidiDeviceInfo info) {
BluetoothMidiDeviceTracker deviceTracker = mInfoTrackerMap
.get(info);
if (deviceTracker != null) {
mOpenDevices.remove(deviceTracker);
notifyDataSetChanged();
}
}
public BluetoothMidiDeviceTracker getDevice(int position) {
return mOpenDevices.get(position);
}
public BluetoothMidiDeviceTracker getDevice(MidiDeviceInfo info) {
return mInfoTrackerMap.get(info);
}
public void clear() {
mOpenDevices.clear();
mInfoTrackerMap.clear();
notifyDataSetChanged();
}
@Override
public int getCount() {
return mOpenDevices.size();
}
@Override
public Object getItem(int i) {
return mOpenDevices.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public View getView(final int i, View view, ViewGroup viewGroup) {
ViewHolder viewHolder;
final BluetoothMidiDeviceTracker deviceTracker;
// General ListView optimization code.
if (view == null) {
view = mInflator.inflate(R.layout.listitem_open_device, null);
viewHolder = new ViewHolder();
viewHolder.deviceStatus = (TextView) view.findViewById(R.id.device_status);
viewHolder.deviceName = (TextView) view.findViewById(R.id.device_name);
viewHolder.closeButton = (Button) view.findViewById(R.id.close_button);
viewHolder.closeButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
BluetoothMidiDeviceTracker deviceTracker = mOpenDevices
.get(i);
doClose(deviceTracker.midiDevice);
((Button) v).setEnabled(false);
}
});
view.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) view.getTag();
}
deviceTracker = mOpenDevices.get(i);
final String deviceName = deviceTracker.bluetoothDevice.getName();
if (deviceName != null && deviceName.length() > 0) {
viewHolder.deviceName.setText(deviceName);
} else {
viewHolder.deviceName.setText("--");
}
// Show address and number of ports open.
StringBuilder sb = new StringBuilder();
sb.append(" - ");
sb.append(deviceTracker.bluetoothDevice.getAddress());
sb.append(", [" + deviceTracker.inputOpenCount);
sb.append("][" + deviceTracker.outputOpenCount);
sb.append("]");
if ((deviceTracker.inputOpenCount + deviceTracker.outputOpenCount) > 0) {
sb.append(" in use");
}
viewHolder.deviceStatus.setText(sb.toString());
return view;
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Log.i(TAG, "app started ========================");
Button bluetoothScanButton = (Button) findViewById(R.id.bluetooth_scan);
bluetoothScanButton.setOnClickListener(mBluetoothScanListener);
// récupération de la vue Button
b = (Button)findViewById(R.id.jouer);
final MidiConnection m = this;
// ajout d'un évènement sur le bouton
b.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// SERIALIZABLE
Intent i2 = new Intent(m, MidiPong.class);
i2.putExtra("com.yassin.stage.midible.MidiConnection", m);
startActivity(i2);
}
});
ListView listView = (ListView) findViewById(R.id.open_device_list);
listView.setEmptyView(findViewById(R.id.empty));
// Initializes list view adapter.
mOpenDeviceListAdapter = new OpenDeviceListAdapter();
listView.setAdapter(mOpenDeviceListAdapter);
if (getPackageManager().hasSystemFeature(PackageManager.FEATURE_MIDI)) {
setupMidi();
} else {
Toast.makeText(MidiConnection.this, "MIDI not supported!",
Toast.LENGTH_LONG).show();
bluetoothScanButton.setEnabled(false);
}
}
private void setupMidi() {
// Setup MIDI
mMidiManager = (MidiManager) getSystemService(MIDI_SERVICE);
mMidiManager.registerDeviceCallback(new DeviceCallback() {
@Override
public void onDeviceRemoved(final MidiDeviceInfo info) {
mOpenDeviceListAdapter.remove(info);
}
// Update port open counts so user knows if the device is in use.
@Override
public void onDeviceStatusChanged(final MidiDeviceStatus status) {
MidiDeviceInfo info = status.getDeviceInfo();
BluetoothMidiDeviceTracker tracker = mOpenDeviceListAdapter
.getDevice(info);
if (tracker != null) {
tracker.outputOpenCount = 0;
for (int i = 0; i < info.getOutputPortCount(); i++) {
tracker.outputOpenCount += status
.getOutputPortOpenCount(i);
}
tracker.inputOpenCount = 0;
for (int i = 0; i < info.getInputPortCount(); i++) {
tracker.inputOpenCount += status.isInputPortOpen(i) ? 1
: 0;
}
mOpenDeviceListAdapter.notifyDataSetChanged();
}
}
}, new android.os.Handler(Looper.getMainLooper()));
}
@Override
public void onDestroy() {
mOpenDeviceListAdapter.clear();
super.onDestroy();
}
public MidiDevice onBluetoothDeviceOpen(final BluetoothDevice bluetoothDevice, final MidiDevice midiDevice) {
final MidiConnection mc = this;
runOnUiThread(new Runnable() {
@Override
public void run() {
if (midiDevice != null) {BluetoothMidiDeviceTracker tracker = new BluetoothMidiDeviceTracker(bluetoothDevice, midiDevice);
mOpenDeviceListAdapter.addDevice(tracker); // tracker = appareil séelctionné par l'utilisateur
// control change
//mc.gant = tracker.getMidiDevice();
//MidiOutputPort outputPort = midiDevice.openOutputPort(tracker.outputOpenCount);
//outputPort.connect(new Receiver());
/*boolean b = tracker.equals(mc);
Intent i = new Intent(mc, MidiPong.class);
i.putExtra("gant", mc);*/
//startActivity(i);
} else {
Toast.makeText(MidiConnection.this, "MIDI device open failed!", Toast.LENGTH_LONG).show();
}
}
});
this.gant = mc.gant;
return this.gant; // GANT SPECKTR!!!
}
/**
*
* @param tracker
*/
public void closeBluetoothDevice(BluetoothMidiDeviceTracker tracker) {
if (tracker != null) {
Log.i(TAG, "Closing Bluetooth MIDI device, info = " + tracker.midiDevice.getInfo());
}
doClose(tracker.midiDevice);
}
public void closeAll() {
for (int i = 0; i < mOpenDeviceListAdapter.getCount(); i++) {
BluetoothMidiDeviceTracker tracker = mOpenDeviceListAdapter
.getDevice(i);
if (tracker != null) {
Log.i(TAG, "Closing Bluetooth MIDI device, info = "
+ tracker.midiDevice.getInfo());
}
doClose(tracker.midiDevice);
}
mOpenDeviceListAdapter.clear();
}
public final OnClickListener mBluetoothScanListener = new OnClickListener() {
@Override
public void onClick(View v) {
if (checkSelfPermission(Manifest.permission.BLUETOOTH) == PackageManager.PERMISSION_GRANTED) {
openBluetoothScan();
} else {
requestPermissions(
new String[] { Manifest.permission.BLUETOOTH }, 0);
}
}
};
private void openBluetoothScan() {
Intent intent = new Intent();
intent.setAction(Intent.ACTION_PICK);
intent.setClassName("com.yassin.stage.midible", "com.yassin.stage.midible" + ".DeviceScanActivity");
startActivityForResult(intent, REQUEST_BLUETOOTH_SCAN);
}
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
openBluetoothScan();
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode,
Intent data) {
if (requestCode == REQUEST_BLUETOOTH_SCAN && resultCode == RESULT_OK) {
final BluetoothDevice fBluetoothDevice = (BluetoothDevice) data
.getParcelableExtra("device");
if (fBluetoothDevice != null) {
Log.i(TAG, "Bluetooth device name = "
+ fBluetoothDevice.getName()
+ ", address = "
+ fBluetoothDevice.getAddress());
mMidiManager.openBluetoothDevice(fBluetoothDevice,
new MidiManager.OnDeviceOpenedListener() {
@Override
public void onDeviceOpened(MidiDevice device) {
onBluetoothDeviceOpen(fBluetoothDevice, device);
}
}, null);
}
}
}
private void doClose(Closeable closeable) {
if (closeable != null) {
try {
closeable.close();
} catch (IOException e) {
}
}
}
} |
