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| /*
* 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) {
}
}
}
} |
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