我用过这个教程。
我正在开发基于蓝牙的灯控制器应用程序，在我的应用程序中，我想使用手势滑动从一个灯组移动到另一组，即坏房间灯到客厅灯，当我在屏幕上滑动时，我的应用程序抛出"stooped unexpectedly"异常。请帮助我这是我的代码：
package com.taher.bluetoothremotecontrol;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.UUID;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.WindowManager;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.Button;
import android.app.Activity;
import android.view.Menu;
import android.view.GestureDetector;
import android.view.GestureDetector.OnGestureListener;
import android.view.MotionEvent;
import android.widget.ImageView;
import android.view.View;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.Animation;
import android.view.animation.TranslateAnimation;
import android.widget.ViewFlipper;
public class ClientSocketActivity extends Activity implements OnGestureListener
{
//private static final String TAG = ClientSocketActivity.class.getSimpleName();
private static final int REQUEST_DISCOVERY = 0x1;;
private Handler _handler = new Handler();
private BluetoothAdapter _bluetooth = BluetoothAdapter.getDefaultAdapter();
private BluetoothSocket socket = null;
private OutputStream outputStream;
private InputStream inputStream;
private StringBuffer sbu;
private GestureDetector gDetector;
ViewFlipper flipper;
SeekBar seekbar;
TextView value;
byte sValue;
int p;
Button D1,D2,D3,D4,All,BACK,EXIT,L1,L2,L3,L4;
private static final int SWIPE_MIN_DISTANCE = 120;
private static final int SWIPE_MAX_OFF_PATH = 250;
private static final int SWIPE_THRESHOLD_VELOCITY = 200;
/*private Animation inFromRightAnimation() {
Animation inFromRight = new TranslateAnimation(
Animation.RELATIVE_TO_PARENT, +1.0f, Animation.RELATIVE_TO_PARENT, 0.0f,
Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f
);
inFromRight.setDuration(500);
inFromRight.setInterpolator(new AccelerateInterpolator());
return inFromRight;
}
private Animation outToLeftAnimation() {
Animation outtoLeft = new TranslateAnimation(
Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, -1.0f,
Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f
);
outtoLeft.setDuration(500);
outtoLeft.setInterpolator(new AccelerateInterpolator());
return outtoLeft;
}
private Animation inFromLeftAnimation() {
Animation inFromLeft = new TranslateAnimation(
Animation.RELATIVE_TO_PARENT, -1.0f, Animation.RELATIVE_TO_PARENT, 0.0f,
Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f
);
inFromLeft.setDuration(500);
inFromLeft.setInterpolator(new AccelerateInterpolator());
return inFromLeft;
}
private Animation outToRightAnimation() {
Animation outtoRight = new TranslateAnimation(
Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, +1.0f,
Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f
);
outtoRight.setDuration(500);
outtoRight.setInterpolator(new AccelerateInterpolator());
return outtoRight;
}*/
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND,
WindowManager.LayoutParams.FLAG_BLUR_BEHIND);
setContentView(R.layout.main_2);
if (!_bluetooth.isEnabled()) {
Toast.makeText(getApplicationContext(),"Bluetooth is not enable", Toast.LENGTH_SHORT).show();
finish();
return;
}
Log.d("EF-BTBee", ">>setOnKeyListener");
Intent intent = new Intent(this, DiscoveryActivity.class);
/* Prompted to select a server to connect */
Toast.makeText(this, "select device to connect", Toast.LENGTH_SHORT).show();
/* Select device for list */
startActivityForResult(intent, REQUEST_DISCOVERY);
final Button L1 = (Button) findViewById(R.id.button1);
final Button L2 = (Button) findViewById(R.id.button2);
final Button L3 = (Button) findViewById(R.id.button3);
final Button L4 = (Button) findViewById(R.id.button4);
L4.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
String tmpStr="32\r";
byte bytes[] = tmpStr.getBytes();
try {outputStream.write(bytes);
} catch (IOException e) {
e.printStackTrace();
}
}
});
L3.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
String tmpStr="34\r";
byte bytes[] = tmpStr.getBytes();
try {outputStream.write(bytes);
} catch (IOException e) {
e.printStackTrace();
}
}
});
L1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
String tmpStr="00\r";
byte bytes[] = tmpStr.getBytes();
try {outputStream.write(bytes);
} catch (IOException e) {
e.printStackTrace();
}
}
});
L2.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
String tmpStr="36\r";
byte bytes[] = tmpStr.getBytes();
try {outputStream.write(bytes);
} catch (IOException e) {
e.printStackTrace();
}
}
});
}
/* after select, connect to device */
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode != REQUEST_DISCOVERY) {
finish();
return;
}
if (resultCode != RESULT_OK) {
finish();
return;
}
final BluetoothDevice device = data.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
new Thread() {
public void run() {
connect(device);
};
}.start();
}
protected void onDestroy() {
super.onDestroy();
try {
socket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
Log.e("EF-BTBee", ">>", e);
}
}
protected void connect(BluetoothDevice device) {
//BluetoothSocket socket = null;
try {
//Create a Socket connection: need the server's UUID number of registered
socket = device.createRfcommSocketToServiceRecord(UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"));
socket.connect();
Log.d("EF-BTBee", ">>Client connectted");
inputStream = socket.getInputStream();
outputStream = socket.getOutputStream();
int read = -1;
final byte[] bytes = new byte[2048];
for (; (read = inputStream.read(bytes)) > -1;) {
final int count = read;
_handler.post(new Runnable() {
public void run() {
StringBuilder b = new StringBuilder();
for (int i = 0; i < count; ++i) {
String s = Integer.toString(bytes[i]);
b.append(s);
b.append(",");
}
String s = b.toString();
String[] chars = s.split(",");
sbu = new StringBuffer();
for (int i = 0; i < chars.length; i++) {
sbu.append((char) Integer.parseInt(chars[i]));
}
Log.d("EF-BTBee", ">>inputStream");
}
});
}
} catch (IOException e) {
Log.e("EF-BTBee", ">>", e);
finish();
return ;
} finally {
if (socket != null) {
try {
Log.d("EF-BTBee", ">>Client Socket Close");
socket.close();
finish();
return ;
} catch (IOException e) {
Log.e("EF-BTBee", ">>", e);
}
}
}
}
public boolean onDown(MotionEvent arg0) {
// TODO Auto-generated method stub
return false;
}
public boolean onFling(MotionEvent start, MotionEvent finish, float xVelocity, float yVelocity) {
try {
if (start.getX() > finish.getX() && Math.abs(start.getX() - finish.getX()) > SWIPE_MIN_DISTANCE && Math.abs(xVelocity) > SWIPE_THRESHOLD_VELOCITY) {
//flipper.setInAnimation(inFromRightAnimation());
//flipper.setOutAnimation(outToLeftAnimation());
flipper.showNext();
} else if (start.getX() < finish.getX() && finish.getX() - start.getX() > SWIPE_MIN_DISTANCE && Math.abs(xVelocity) > SWIPE_THRESHOLD_VELOCITY){
//flipper.setInAnimation(inFromLeftAnimation());
//flipper.setOutAnimation(outToRightAnimation());
flipper.showPrevious();
}
} catch (Exception e) {
// nothing
}
return true;
}
public void onLongPress(MotionEvent arg0) {}
public boolean onScroll(MotionEvent arg0, MotionEvent arg1, float arg2, float arg3) {return false;}
public void onShowPress(MotionEvent arg0) {}
public boolean onSingleTapUp(MotionEvent arg0) {return false;}
@Override
public boolean onTouchEvent(MotionEvent me) {return gDetector.onTouchEvent(me);}
}