如何使用Android中配对的蓝牙设备的方案连接？ [英] How to connect with paired Bluetooth device programmatic in Android?
本文介绍了如何使用Android中配对的蓝牙设备的方案连接？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我开发一个应用程序，其中我需要连接到蓝牙配对设备。这两个设备配对彼此。现在，当我尝试与配对的设备它坚持了连接模式对话框连接。日志显示，它连接成功，但不关闭对话框。
I am developing an application where I have to connect to Bluetooth paired device. These two devices are paired with each other. Now when I try to connect with paired device it stuck with the connecting mode dialog. Log shows that it successfully connect but does not dismiss the dialog.
下面是我的code段。
Here is my code snippet.
Main.java
Main.java
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Random;
import java.util.Set;
import java.util.TimeZone;
import java.util.UUID;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnCancelListener;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.ColorMatrix;
import android.graphics.ColorMatrixColorFilter;
import android.graphics.PorterDuff.Mode;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.Environment;
import android.preference.PreferenceManager;
import android.provider.Settings;
import android.util.Log;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.view.View.OnTouchListener;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class Main extends Activity
{
protected static final String TAG = "TAG";
private static final int REQUEST_CONNECT_DEVICE = 1;
private static final int REQUEST_ENABLE_BT = 2;
Button mScan;
BluetoothAdapter mBluetoothAdapter;
private UUID applicationUUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
@Override
public void onCreate(Bundle mSavedInstanceState)
{
super.onCreate(mSavedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.main);
mScan = (Button) findViewById(R.id.Scan);
mScan.setOnClickListener(new View.OnClickListener()
{
public void onClick(View mView)
{
mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (mBluetoothAdapter == null)
{
Toast.makeText(Main.this, "DeviceHasNoSupport", 2000).show();
}
else
{
if (!mBluetoothAdapter.isEnabled())
{
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
}
else
{
ListPairedDevices();
Intent connectIntent = new Intent(Main.this, DeviceListActivity.class);
startActivityForResult(connectIntent, REQUEST_CONNECT_DEVICE);
}
}
}
});
}// onCreate
public void onActivityResult(int mRequestCode, int mResultCode, Intent mDataIntent)
{
super.onActivityResult(mRequestCode, mResultCode, mDataIntent);
switch (mRequestCode)
{
case REQUEST_CONNECT_DEVICE:
if (mResultCode == Activity.RESULT_OK)
{
Bundle mExtra = mDataIntent.getExtras();
String mDeviceAddress = mExtra.getString("DeviceAddress");
Log.v(TAG, "Coming incoming address " + mDeviceAddress);
BluetoothDevice mBluetoothDevice = mBluetoothAdapter.getRemoteDevice(mDeviceAddress);
pairToDevice(mBluetoothDevice);
Log.v(TAG, "pairToDeviceCalled");
}
break;
case REQUEST_ENABLE_BT:
if (mResultCode == Activity.RESULT_OK)
{
ListPairedDevices();
Intent connectIntent = new Intent(Main.this, DeviceListActivity.class);
startActivityForResult(connectIntent, REQUEST_CONNECT_DEVICE);
}
else
{
Toast.makeText(Main.this, "BTNotEnabled", 2000).show();
}
break;
}
}
private void ListPairedDevices()
{
Set<BluetoothDevice> mPairedDevices = mBluetoothAdapter.getBondedDevices();
if (mPairedDevices.size() > 0)
{
for (BluetoothDevice mDevice : mPairedDevices)
{
Log.v(TAG, "PairedDevices: " + mDevice.getName() + " " + mDevice.getAddress());
}
}
}
private void pairToDevice(BluetoothDevice nBluetoothDevice)
{
Log.v(TAG, "InsidepairToDeviceCalled");
openSocket(nBluetoothDevice);
Log.v(TAG, "LeavingpairToDeviceCalled");
}
private void openSocket(BluetoothDevice nBluetoothDevice)
{
try
{
Log.v(TAG, "InsideOpenSockedCalled");
final ProgressDialog dialog = new ProgressDialog(this);
final ConnectRunnable connector = new ConnectRunnable(nBluetoothDevice, dialog);
Log.v(TAG, "InsideOpenSockedConnecterCalled");
ProgressDialog.show(this, "Connecting...", nBluetoothDevice.getName() + " : " + nBluetoothDevice.getAddress(),
true, true,
new OnCancelListener()
{
public void onCancel(DialogInterface dialog)
{
connector.cancel();
}
});
new Thread(connector).start();
}
catch (IOException ex)
{
Log.d(TAG, "Could not open bluetooth socket", ex);
}
}
private class ConnectRunnable implements Runnable
{
private final ProgressDialog dialog;
private final BluetoothSocket socket;
public ConnectRunnable(BluetoothDevice device, ProgressDialog dialog) throws IOException
{
socket = device.createRfcommSocketToServiceRecord(applicationUUID);
this.dialog = dialog;
}
public void run()
{
try
{
Log.v(TAG, "InsideRunnableCalled");
mBluetoothAdapter.cancelDiscovery();
socket.connect();
Log.v(TAG, "InsideRunnableSocketConnectCalled");
}
catch (IOException connectException)
{
Log.d(TAG, "Could not connect to socket", connectException);
closeSocket(socket);
return;
}
Log.v(TAG, "Connected");
dismissDialog(dialog);
closeSocket(socket);
}
public void cancel()
{
try
{
socket.close();
}
catch (IOException e)
{
Log.d(TAG, "Canceled connection", e);
}
}
}
private void dismissDialog(final Dialog dialog)
{
runOnUiThread(new Runnable()
{
public void run()
{
dialog.dismiss();
Log.v(TAG, "DialogClosed");
}
});
}
private void closeSocket(BluetoothSocket nOpenSocket)
{
try
{
nOpenSocket.close();
Log.v(TAG, "SockectClosed");
}
catch (IOException ex)
{
Log.d(TAG, "Could not close exisiting socket", ex);
}
}
@Override
public boolean onKeyDown(int mKeyCode, KeyEvent mKeyEvent)
{
if ((!(android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.DONUT)
&& mKeyCode == KeyEvent.KEYCODE_BACK && mKeyEvent.getRepeatCount() == 0))
{
onBackPressed();
}
return super.onKeyDown(mKeyCode, mKeyEvent);
}
public void onBackPressed()
{
finish();
}
}
DeviceListActivity.java
DeviceListActivity.java
import java.util.Set;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.AdapterView.OnItemClickListener;
public class DeviceListActivity extends Activity
{
protected static final String TAG = "TAG";
private BluetoothAdapter mBluetoothAdapter;
private ArrayAdapter<String> mPairedDevicesArrayAdapter;
@Override
protected void onCreate(Bundle mSavedInstanceState)
{
super.onCreate(mSavedInstanceState);
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
setContentView(R.layout.device_list);
setResult(Activity.RESULT_CANCELED);
mPairedDevicesArrayAdapter = new ArrayAdapter<String>(this, R.layout.device_name);
ListView mPairedListView = (ListView) findViewById(R.id.paired_devices);
mPairedListView.setAdapter(mPairedDevicesArrayAdapter);
mPairedListView.setOnItemClickListener(mDeviceClickListener);
mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
Set<BluetoothDevice> mPairedDevices = mBluetoothAdapter.getBondedDevices();
if (mPairedDevices.size() > 0)
{
findViewById(R.id.title_paired_devices).setVisibility(View.VISIBLE);
for (BluetoothDevice mDevice : mPairedDevices)
{
mPairedDevicesArrayAdapter.add(mDevice.getName() + "\n" + mDevice.getAddress());
}
}
else
{
String mNoDevices = getResources().getText(R.string.none_paired).toString();
mPairedDevicesArrayAdapter.add(mNoDevices);
}
}
@Override
protected void onDestroy()
{
super.onDestroy();
if (mBluetoothAdapter != null)
{
mBluetoothAdapter.cancelDiscovery();
}
}
private OnItemClickListener mDeviceClickListener = new OnItemClickListener()
{
public void onItemClick(AdapterView<?> mAdapterView, View mView, int mPosition, long mLong)
{
mBluetoothAdapter.cancelDiscovery();
String mDeviceInfo = ((TextView) mView).getText().toString();
String mDeviceAddress = mDeviceInfo.substring(mDeviceInfo.length() - 17);
Log.v(TAG, "Device_Address " + mDeviceAddress);
Bundle mBundle = new Bundle();
mBundle.putString("DeviceAddress", mDeviceAddress);
Intent mBackIntent = new Intent();
mBackIntent.putExtras(mBundle);
setResult(Activity.RESULT_OK, mBackIntent);
finish();
}
};
}
Android清单
Android Manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.androidvouge.bluetooth" android:versionCode="1"
android:versionName="1.0">
<application android:icon="@drawable/icon" android:label="@string/name"
android:theme="@android:style/Theme.NoTitleBar.Fullscreen">
<activity android:name=".Main" android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".DeviceListActivity" android:theme="@android:style/Theme.Dialog"
android:configChanges="orientation|keyboardHidden"
android:screenOrientation="portrait" />
</application>
<uses-sdk android:minSdkVersion="7" android:targetSdkVersion="11" />
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
<supports-screens android:smallScreens="false"
android:normalScreens="true" android:largeScreens="true" />
</manifest>
device_list.xml
device_list.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView android:id="@+id/title_paired_devices"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:text="@string/title_paired_devices" android:visibility="gone"
android:background="#666" android:textColor="#fff"
android:paddingLeft="5dip" />
<ListView android:id="@+id/paired_devices"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:stackFromBottom="true" android:layout_weight="1" />
</LinearLayout>
device_name.xml
device_name.xml
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:textSize="18sp" android:padding="5dip" />
main.xml中有唯一的按钮。
main.xml has only button.
下面是logcat的输出。
Here is the logcat output.
06-16 13:46:08.640 19062 19062 E CachedBluetoothDevice: updating profiles for $ $ S A \/ A N $ $
06-16 13:46:08.640 19062 19062 V CachedBluetoothDevice: opp classbits != uuid
06-16 13:46:08.640 19062 19062 V CachedBluetoothDevice: Class: 5a0204
06-16 13:46:08.640 19062 19062 V CachedBluetoothDevice: UUID:
06-16 13:46:08.640 19062 19062 V CachedBluetoothDevice: 00001101-0000-1000-8000-00805f9b34fb
06-16 13:46:08.667 19091 19091 V TAG : PairedDevices: $ $ S A \/ A N $ $ 00:1D:3B:05:B4:D5
06-16 13:46:10.582 19091 19091 V TAG : Device_Address 00:1D:3B:05:B4:D5
06-16 13:46:10.597 19091 19091 V TAG : Coming incoming address 00:1D:3B:05:B4:D5
06-16 13:46:10.597 19091 19091 V TAG : InsidepairToDeviceCalled
06-16 13:46:10.597 19091 19091 V TAG : InsideOpenSockedCalled
06-16 13:46:10.718 19091 19091 V TAG : InsideOpenSockedConnecterCalled
06-16 13:46:10.789 19091 19091 V TAG : LeavingpairToDeviceCalled
06-16 13:46:10.789 19091 19091 V TAG : pairToDeviceCalled
06-16 13:46:10.800 19091 19128 V TAG : InsideRunnableCalled
06-16 13:46:13.730 19091 19128 V TAG : InsideRunnableSocketConnectCalled
06-16 13:46:13.730 19091 19128 V TAG : Connected
06-16 13:46:13.730 19091 19128 V TAG : SockectClosed
06-16 13:46:13.734 19091 19091 V TAG : DialogClosed
我在哪里的问题呢？如果谁成功配置蓝牙与处理对话框，请给我一只手。
Where am going wrong? Anybody who has successfully configured Bluetooth with processing dialog, Please give me a hand.
感谢。
推荐答案
请修改您的Main.java文件，如下图所示，并请保留其余文件它是。
Please modify your Main.java file like below and please keep the rest files at it is.
Main.java
Main.java
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Random;
import java.util.Set;
import java.util.TimeZone;
import java.util.UUID;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.ColorMatrix;
import android.graphics.ColorMatrixColorFilter;
import android.graphics.PorterDuff.Mode;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.preference.PreferenceManager;
import android.provider.Settings;
import android.util.Log;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.Window;
import android.view.WindowManager;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class Main extends Activity implements Runnable
{
protected static final String TAG = "TAG";
private static final int REQUEST_CONNECT_DEVICE = 1;
private static final int REQUEST_ENABLE_BT = 2;
Button mScan;
BluetoothAdapter mBluetoothAdapter;
private UUID applicationUUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
private ProgressDialog mBluetoothConnectProgressDialog;
private BluetoothSocket mBluetoothSocket;
BluetoothDevice mBluetoothDevice;
@Override
public void onCreate(Bundle mSavedInstanceState)
{
super.onCreate(mSavedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.main);
mScan = (Button) findViewById(R.id.Scan);
mScan.setOnClickListener(new View.OnClickListener()
{
public void onClick(View mView)
{
mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (mBluetoothAdapter == null)
{
Toast.makeText(Main.this, "Message1", 2000).show();
}
else
{
if (!mBluetoothAdapter.isEnabled())
{
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
}
else
{
ListPairedDevices();
Intent connectIntent = new Intent(Main.this, DeviceListActivity.class);
startActivityForResult(connectIntent, REQUEST_CONNECT_DEVICE);
}
}
}
});
mTune.setOnClickListener(new View.OnClickListener()
{
public void onClick(View mView)
{
mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (mBluetoothAdapter == null)
{
Toast.makeText(Main.this, "Message2", 2000).show();
}
else
{
if (!mBluetoothAdapter.isEnabled())
{
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
}
else
{
ListPairedDevices();
Intent connectIntent = new Intent(Main.this, DeviceListActivity.class);
startActivityForResult(connectIntent, REQUEST_CONNECT_DEVICE);
}
}
}
});
}// onCreate
public void onActivityResult(int mRequestCode, int mResultCode, Intent mDataIntent)
{
super.onActivityResult(mRequestCode, mResultCode, mDataIntent);
switch (mRequestCode)
{
case REQUEST_CONNECT_DEVICE:
if (mResultCode == Activity.RESULT_OK)
{
Bundle mExtra = mDataIntent.getExtras();
String mDeviceAddress = mExtra.getString("DeviceAddress");
Log.v(TAG, "Coming incoming address " + mDeviceAddress);
mBluetoothDevice = mBluetoothAdapter.getRemoteDevice(mDeviceAddress);
mBluetoothConnectProgressDialog = ProgressDialog.show(this, "Connecting...", mBluetoothDevice.getName() + " : " + mBluetoothDevice.getAddress(), true, false);
Thread mBlutoothConnectThread = new Thread(this);
mBlutoothConnectThread.start();
//pairToDevice(mBluetoothDevice); This method is replaced by progress dialog with thread
}
break;
case REQUEST_ENABLE_BT:
if (mResultCode == Activity.RESULT_OK)
{
ListPairedDevices();
Intent connectIntent = new Intent(Main.this, DeviceListActivity.class);
startActivityForResult(connectIntent, REQUEST_CONNECT_DEVICE);
}
else
{
Toast.makeText(Main.this, "Message", 2000).show();
}
break;
}
}
private void ListPairedDevices()
{
Set<BluetoothDevice> mPairedDevices = mBluetoothAdapter.getBondedDevices();
if (mPairedDevices.size() > 0)
{
for (BluetoothDevice mDevice : mPairedDevices)
{
Log.v(TAG, "PairedDevices: " + mDevice.getName() + " " + mDevice.getAddress());
}
}
}
public void run()
{
try
{
mBluetoothSocket = mBluetoothDevice.createRfcommSocketToServiceRecord(applicationUUID);
mBluetoothAdapter.cancelDiscovery();
mBluetoothSocket.connect();
mHandler.sendEmptyMessage(0);
}
catch (IOException eConnectException)
{
Log.d(TAG, "CouldNotConnectToSocket", eConnectException);
closeSocket(mBluetoothSocket);
return;
}
}
private void closeSocket(BluetoothSocket nOpenSocket)
{
try
{
nOpenSocket.close();
Log.d(TAG, "SocketClosed");
}
catch (IOException ex)
{
Log.d(TAG, "CouldNotCloseSocket");
}
}
private Handler mHandler = new Handler()
{
@Override
public void handleMessage(Message msg)
{
mBluetoothConnectProgressDialog.dismiss();
Toast.makeText(Main.this, "DeviceConnected", 5000).show();
}
};
}
感谢。
这篇关于如何使用Android中配对的蓝牙设备的方案连接？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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