我制作了两个以相同方式使用蓝牙的应用程序。当我点击＆＃34; Connect＆＃34;按钮我收到消息＆＃34;完成动作使用...＆＃34;选择我的两个应用程序。如何删除它并仅启动我正在使用的应用程序的活动？
感谢。
public class MainActivity extends Activity implements View.OnClickListener{
@Override
public void onBackPressed() {
// TODO Auto-generated method stub
if (Bluetooth.connectedThread != null) {
Bluetooth.connectedThread.write(" ");}//Stop streaming
super.onBackPressed();
}
//toggle Button
static boolean Lock;//whether lock the x-axis to 0-5
static boolean AutoScrollX;//auto scroll to the last x value
static boolean Stream;//Start or stop streaming
boolean dark = true;
//Button init
Button bXminus;
Button bXplus;
Button bYminus;
Button bYplus;
ToggleButton tbScroll;
ToggleButton tbStream;
RadioButton ch1,ch2,ch3,ch4;
//GraphView init
static LinearLayout GraphView, GraphView1;
//graph value
private static double graph2LastXValue = 0;
private static int Xview=10;
Button bConnect, bDisconnect;
Button cambia;
Button bBackground;
int switches = 0;
int range = 1;
int counter = 0;
byte prova = (byte) 187; //188 e 168
Handler mHandler = new Handler(){
@Override
public void handleMessage(Message msg) {
// TODO Auto-generated method stub
super.handleMessage(msg);
switch(msg.what){
case Bluetooth.SUCCESS_CONNECT:
Bluetooth.connectedThread = new Bluetooth.ConnectedThread((BluetoothSocket)msg.obj);
Toast.makeText(getApplicationContext(), "Connected!", 0).show();
String s = "successfully connected";
Bluetooth.connectedThread.start();
Bluetooth.connectedThread.write(new byte[]{(byte) prova});
break;
case Bluetooth.MESSAGE_READ:
byte[] readBuf = (byte[]) msg.obj;
int valore_a_16 = ((readBuf[1] & 0xFF) << 8) | (readBuf[0] & 0xFF);
int valore_a_16_2 = ((readBuf[3] & 0xFF) << 8) | (readBuf[2] & 0xFF);
int valore_a_16_3 = ((readBuf[5] & 0xFF) << 8) | (readBuf[4] & 0xFF);
int valore_a_16_4 = ((readBuf[7] & 0xFF) << 8) | (readBuf[6] & 0xFF);
String strIncom = new String(readBuf); // create string from bytes array
String str = String.valueOf(valore_a_16);
String str2 = String.valueOf(valore_a_16_2);
String str3 = String.valueOf(valore_a_16_3);
String str4 = String.valueOf(valore_a_16_4);
Log.d("SHORT", str);
Log.d("strIncom", strIncom);
Log.d("SHORT CH 2", str2);
Log.d("SHORT CH 3", str3);
Log.d("SHORT CH 4", str4);
char c = strIncom.charAt(0);
long foo = Integer.parseInt(str);
long foo2 = Integer.parseInt(str2);
long foo3 = Integer.parseInt(str3);
long foo4 = Integer.parseInt(str4);
//String provola = Integer.toString(foo);
//Log.d("AAAAAAAAAAAAAA", provola);
// int decVal = (int) c;
long risultato = (long) (foo * 5000000)/(65535*150);
long risultato2 = (long) (foo2 * 5000000)/(65535*150);
long risultato3 = (long) (foo3 * 5000000)/(65535*150);
long risultato4 = (long) (foo4 * 5000000)/(65535*150);
String prova = Float.toString(risultato);
String prova2 = Float.toString(risultato2);
String prova3 = Float.toString(risultato3);
String prova4 = Float.toString(risultato4);
Log.d("prova", prova);
// Log.d("testing2", String.valueOf(decVal));
break;
}
}
public boolean isFloatNumber(String num){
//Log.d("checkfloatNum", num);
try{
Double.parseDouble(num);
} catch(NumberFormatException nfe) {
return false;
}
return true;
}
};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
requestWindowFeature(Window.FEATURE_NO_TITLE);//Hide title
this.getWindow().setFlags(WindowManager.LayoutParams.
FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);//Hide Status bar
setContentView(R.layout.activity_main);
//set background color
LinearLayout background = (LinearLayout)findViewById(R.id.bg);
background.setBackgroundColor(Color.BLACK);
init();
ButtonInit();
}
void init(){
Bluetooth.gethandler(mHandler);
}
void ButtonInit(){
bConnect = (Button)findViewById(R.id.bConnect);
bConnect.setOnClickListener(this);
bDisconnect = (Button)findViewById(R.id.bDisconnect);
bDisconnect.setOnClickListener(this);
//X-axis control button
bXminus = (Button)findViewById(R.id.bXminus);
bXminus.setOnClickListener(this);
bXplus = (Button)findViewById(R.id.bXplus);
bXplus.setOnClickListener(this);
bYminus = (Button)findViewById(R.id.bYminus);
bYminus.setOnClickListener(this);
bYplus = (Button)findViewById(R.id.bYplus);
bYplus.setOnClickListener(this);
//
tbScroll = (ToggleButton)findViewById(R.id.tbScroll);
tbScroll.setOnClickListener(this);
tbStream = (ToggleButton)findViewById(R.id.tbStream);
tbStream.setOnClickListener(this);
tbStream.setEnabled(false);
bBackground = (Button)findViewById(R.id.button1);
bBackground.setOnClickListener(this);
//init toggleButton
ch1 = (RadioButton)findViewById(R.id.radioButton1);
ch1.setOnClickListener(this);
ch1.setChecked(true);
ch2 = (RadioButton)findViewById(R.id.radioButton2);
ch2.setOnClickListener(this);
ch3 = (RadioButton)findViewById(R.id.radioButton3);
ch3.setOnClickListener(this);
ch4 = (RadioButton)findViewById(R.id.radioButton4);
ch4.setOnClickListener(this);
Lock=false;
AutoScrollX=true;
Stream=true;
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch(v.getId()){
case R.id.bConnect:
startActivity(new Intent("android.intent.action.BT1"));
break;
case R.id.bDisconnect:
Intent myIntent = new Intent(MainActivity.this, RacerGameActivity.class);
MainActivity.this.startActivity(myIntent);
break;
case R.id.bXminus:
if (Xview>1) Xview=Xview/10;
break;
case R.id.bXplus:
if (Xview<100) Xview=Xview*10;
break;
case R.id.bYminus:
if (range==1)
{
range=0;
}
else if (range==0)
{
range=0;
}
else if(range==2)
{
range=1;
}
else if(range==3)
{
range=2;
}
else if(range==4)
{
range=3;
}
break;
case R.id.bYplus:
if (range==1)
{
range=2;
}
else if (range==0)
{
range=1;
}
else if(range==2)
{
range=3;
}
else if(range==3)
{
range=4;
}
else if(range==4)
{
range=4;
}
break;
case R.id.tbScroll:
if (tbScroll.isChecked()){
AutoScrollX = true;
}else{
AutoScrollX = false;
}
break;
case R.id.radioButton1:
ch1.setChecked(true);
ch2.setChecked(false);
ch3.setChecked(false);
ch4.setChecked(false);
switches=0;
break;
case R.id.radioButton2:
ch1.setChecked(false);
ch2.setChecked(true);
ch3.setChecked(false);
ch4.setChecked(false);
switches=1;
break;
case R.id.radioButton3:
ch1.setChecked(false);
ch2.setChecked(false);
ch3.setChecked(true);
ch4.setChecked(false);
switches=2;
break;
case R.id.radioButton4:
ch1.setChecked(false);
ch2.setChecked(false);
ch3.setChecked(false);
ch4.setChecked(true);
switches=3;
break;
/* case R.id.tbStream:
if (tbStream.isChecked()){
if (Bluetooth.connectedThread != null)
Bluetooth.connectedThread.write("E");
}else{
if (Bluetooth.connectedThread != null)
Bluetooth.connectedThread.write("Q");
}
break;
// case R.id.button1:
// GraphView.setBackgroundColor(Color.WHITE);
// break;
case R.id.button1:
switches=1;
break;*/
}
}
}