Problem mit Bluetooth App

1public void SearchDevices (View view)
2{
3 Intent enabler = new Intent(this, DeviceSearch.class);
4 startActivity(enabler);
5}

1import java.util.ArrayList;
2import java.util.List;
3
4import test.iKing.SamplesUtils;
5
6import android.app.ListActivity;
7import android.bluetooth.BluetoothAdapter;
8import android.bluetooth.BluetoothDevice;
9import android.content.BroadcastReceiver;
10import android.content.Context;
11import android.content.DialogInterface;
12import android.content.Intent;
13import android.content.IntentFilter;
14import android.content.DialogInterface.OnDismissListener;
15import android.os.Bundle;
16import android.os.Handler;
17import android.util.Log;
18import android.view.View;
19import android.view.WindowManager;
20import android.widget.ArrayAdapter;
21import android.widget.ListView;
22
23
24public class DeviceSearch extends ListActivity
25{
26 private BluetoothAdapter bluetooth = BluetoothAdapter.getDefaultAdapter();
27
28 private Handler handler = new Handler();
29
30 private List<BluetoothDevice> devices = new ArrayList<BluetoothDevice>();
31
32 private volatile boolean discoveryFinished;
33
34
35 private Runnable discoveryWorkder = new Runnable() {
36 public void run()
37 {
38 /* Start search device */
39 bluetooth.startDiscovery();
40 Log.d("EF-BTBee", ">>Starting Discovery");
41 for (;;)
42 {
43 if (discoveryFinished)
44 {
45 Log.d("EF-BTBee", ">>Finished");
46 break;
47 }
48 try
49 {
50 Thread.sleep(100);
51 }
52 catch (InterruptedException e){}
53 }
54 }
55 };
56
57 /**
58 * Receiver
59 * When the discovery finished be called.
60 */
61 private BroadcastReceiver foundReceiver = new BroadcastReceiver() {
62 public void onReceive(Context context, Intent intent) {
63 /* get the search results */
64 BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
65 /* add to list */
66 devices.add(device);
67 /* show the devices list */
68 showDevices();
69 }
70 };
71
72 private BroadcastReceiver discoveryReceiver = new BroadcastReceiver() {
73
74 @Override
75 public void onReceive(Context context, Intent intent)
76 {
77 /* unRegister Receiver */
78 Log.d("EF-BTBee", ">>unregisterReceiver");
79 unregisterReceiver(foundReceiver);
80 unregisterReceiver(this);
81 discoveryFinished = true;
82 }
83 };
84
85 protected void onCreate(Bundle savedInstanceState)
86 {
87 super.onCreate(savedInstanceState);
88 getWindow().setFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND, WindowManager.LayoutParams.FLAG_BLUR_BEHIND);
89 setContentView(R.layout.discovery);
90
91 /* BT isEnable */
92 if (!bluetooth.isEnabled())
93 {
94 Log.w("EF-BTBee", ">>BTBee is disable!");
95 finish();
96 return;
97 }
98 /* Register Receiver*/
99 IntentFilter discoveryFilter = new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
100 registerReceiver(discoveryReceiver, discoveryFilter);
101 IntentFilter foundFilter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
102 registerReceiver(foundReceiver, foundFilter);
103
104 /* show a dialog "Scanning..." */
105 SamplesUtils.indeterminate(DeviceSearch.this, handler, "Scanning...", discoveryWorkder, new OnDismissListener() {
106 public void onDismiss(DialogInterface dialog)
107 {
108
109 for (; bluetooth.isDiscovering();)
110 {
111
112 bluetooth.cancelDiscovery();
113 }
114
115 discoveryFinished = true;
116 }
117 }, true);
118 }
119
120
121 /* Show devices list */
122 protected void showDevices()
123 {
124 List<String> list = new ArrayList<String>();
125 if(devices.size() > 0)
126 {
127 for (int i = 0, size = devices.size(); i < size; ++i)
128 {
129 StringBuilder b = new StringBuilder();
130 BluetoothDevice d = devices.get(i);
131 b.append(d.getAddress());
132 b.append('\n');
133 b.append(d.getName());
134 String s = b.toString();
135 list.add(s);
136 }
137 }
138 else
139 list.add("Keine verfügbaren Geräte gefunden!");
140 Log.d("EF-BTBee", ">>showDevices");
141 final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, list);
142 handler.post(new Runnable() {
143 public void run()
144 {
145 setListAdapter(adapter);
146 }
147 });
148 }
149
150 /* Select device */
151 protected void onListItemClick(ListView l, View v, int position, long id)
152 {
153 Log.d("EF-BTBee", ">>Click device");
154 Intent result = new Intent();
155 result.putExtra(BluetoothDevice.EXTRA_DEVICE, devices.get(position));
156 setResult(RESULT_OK, result);
157 finish();
158 }
159}

1import android.app.ProgressDialog;
2import android.content.Context;
3import android.content.DialogInterface.OnDismissListener;
4import android.os.Handler;
5
6abstract class SamplesUtils
7{
8 public static void indeterminate(Context context, Handler handler, String message, final Runnable runnable, OnDismissListener dismissListener)
9 {
10 try
11 {
12
13 indeterminateInternal(context, handler, message, runnable, dismissListener, true);
14 }
15 catch (Exception e)
16 {
17
18 ; // nop.
19 }
20 }
21
22
23 public static void indeterminate(Context context, Handler handler, String message, final Runnable runnable, OnDismissListener dismissListener,
24 boolean cancelable)
25 {
26
27 try
28 {
29
30 indeterminateInternal(context, handler, message, runnable, dismissListener, cancelable);
31 }
32 catch (Exception e)
33 {
34
35 ; // nop.
36 }
37 }
38
39 private static ProgressDialog createProgressDialog(Context context, String message)
40 {
41
42 ProgressDialog dialog = new ProgressDialog(context);
43 dialog.setIndeterminate(false);
44 dialog.setMessage(message);
45
46 return dialog;
47 }
48
49
50 private static void indeterminateInternal(Context context, final Handler handler, String message, final Runnable runnable,
51 OnDismissListener dismissListener, boolean cancelable)
52 {
53
54 final ProgressDialog dialog = createProgressDialog(context, message);
55 dialog.setCancelable(cancelable);
56
57 if (dismissListener != null)
58 {
59
60 dialog.setOnDismissListener(dismissListener);
61 }
62
63 dialog.show();
64
65 new Thread() {
66
67 @Override
68 public void run()
69 {
70 runnable.run();
71
72 handler.post(new Runnable() {
73
74 public void run()
75 {
76
77 try
78 {
79
80 dialog.dismiss();
81 }
82 catch (Exception e)
83 {
84
85 ; // nop.
86 }
87
88 }
89 });
90 };
91 }.start();
92 }
93}