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
|
/*
* SPDX-License-Identifier: GPL-3.0-only
* Copyright (c) 2019 Bjørn Mork <bjorn@mork.no>
*/
package no.mork.android.defogger;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothManager;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
import com.google.zxing.client.android.Intents;
import com.google.zxing.integration.android.IntentIntegrator;
import com.google.zxing.integration.android.IntentResult;
import java.lang.StringBuilder;
//import no.mork.android.defogger.ScannerActivity;
public class MainActivity extends Activity {
private static String msg = "Defogger MainActivity: ";
private static final int REQUEST_ENABLE_BT = 1;
private static final int REQUEST_GET_DEVICE = 2;
private BluetoothAdapter bluetoothAdapter;
private BluetoothDevice device;
private String pincode;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
protected void onResume() {
Log.d(msg, "onResume()");
super.onResume();
getBluetoothAdapter();
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent dataIntent) {
super.onActivityResult(requestCode, resultCode, dataIntent);
Log.d(msg, "onActivityResult() requestCode=" + requestCode);
Log.d(msg, "Intent is " + dataIntent);
switch (requestCode) {
case IntentIntegrator.REQUEST_CODE:
IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, dataIntent);
if (scanResult != null)
handleQRScanResult(scanResult);
break;
case REQUEST_ENABLE_BT:
if (resultCode != RESULT_OK) { // user refused to enable BT?
setStatus("Bluetooth is disabled");
finish();
}
break;
case REQUEST_GET_DEVICE:
if (resultCode != RESULT_OK) {
setStatus("Failed to find a camera");
break;
}
device = dataIntent.getExtras().getParcelable("btdevice");
if (device == null) {
pincode = null;
setStatus("No camera selected");
break;
}
String pincode = dataIntent.getStringExtra("pincode");
if (pincode == null || pincode.length() < 6) {
pincode = null;
device = null;
setStatus("Bogus pincode");
break;
}
startIpCamActivity();
break;
default:
Log.d(msg, "unknown request???");
}
}
// find and enable a bluetooth adapter with LE support
protected void getBluetoothAdapter() {
final BluetoothManager bluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
bluetoothAdapter = bluetoothManager.getAdapter();
if (bluetoothAdapter == null) {
setStatus("Bluetooth is unsupported");
finish();
}
if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE)) {
setStatus("No Bluetooth Low Energy support");
finish();
}
if (!bluetoothAdapter.isEnabled()) {
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
}
}
public void startIpCamActivity() {
Intent intent = new Intent(this, IpCamActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
intent.putExtra("pincode", pincode);
intent.putExtra("btdevice", device);
startActivity(intent);
}
public void startScannerActivity(View view) {
Intent intent = new Intent(view.getContext(), ScannerActivity.class);
startActivityForResult(intent, REQUEST_GET_DEVICE);
}
public void startQRReaderActivity(View view) {
IntentIntegrator integrator = new IntentIntegrator(this);
integrator.addExtra(Intents.Scan.SAVE_HISTORY, false); // prevent scan result from showing up in input history...
integrator.addExtra(Intents.Scan.RESULT_DISPLAY_DURATION_MS, 0L); // no need to linger after a successful scan...
integrator.addExtra(Intents.Scan.PROMPT_MESSAGE, getResources().getString(R.string.qrscan_msg));
integrator.initiateScan(IntentIntegrator.QR_CODE_TYPES);
}
private void handleQRScanResult(IntentResult res) {
if (res.getContents() == null) {
setStatus("No QR code scanned");
return;
}
Log.d(msg, "QR scan resturned: " + res.toString());
// DCS-8000LH,A3,12345678,B0C554AABBCC,DCS-8000LH-BBCC,123456
String[] data = res.getContents().split(",");
if (data.length != 6 || data[3].length() != 12 || data[5].length() != 6) {
setStatus("Unexpected QR scan result - wrong format");
return;
}
String mac = data[3].replaceAll("([A-F0-9]{2})", "$1:").substring(0, 17);
if (!bluetoothAdapter.checkBluetoothAddress(mac)) {
Log.d(msg, "Got invalid MAC address from QR scan:" + mac);
return;
}
device = bluetoothAdapter.getRemoteDevice(mac.toString());
pincode = data[5];
startIpCamActivity();
}
private void setStatus(String text) {
Log.d(msg, "Status: " + text);
runOnUiThread(new Runnable() {
@Override
public void run() {
TextView status = (TextView) findViewById(R.id.mainstatus);
status.setText(text);
}
});
}
}
|
