android项目在主活动中有两个线程，在第二个活动中有一个线程。按钮单击必须将控件移动到第二个活动并暂停第一个活动，并在第二个活动关闭后恢复暂停的线程。 怎么办呢？
代码：
public class MainActivity extends Activity implements OnItemSelectedListener{
//creating two sockets . one to connect to the server running on linino
//and the other for connecting to the computer to play music
Thread t1;
Thread t2;
//initialising socket variables
private Socket socket;
private Socket socket2;
//write the local ip of linino assigned by the dhcp
//make sure that the port number is the same used for the server
//program
private static final int SERVERPORT = 8020;
private static final String SERVER_IP = "192.168.0.104";
//write the ip of the computer at which the music player is runnnigd
private static final int SERVERPORT2 = 8036;
private static final String SERVER_IP2 = "192.168.0.100";
private Spinner spinner;
private static final String[]paths = {"Select","Happy", "Sad", "Party"};
//voice app
protected static final int RESULT_SPEECH = 1;
private ImageButton btnSpeak;
private TextView txtText; //voice app
//second activity
public final static String EXTRA_MESSAGE = "com.example.voicetesting.MESSAGE";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
t1= new Thread(new ClientThread());
t1.start();
t2= new Thread(new ClientThread2());
t2.start();
//voice app
txtText = (TextView) findViewById(R.id.txtText);
btnSpeak = (ImageButton) findViewById(R.id.btnSpeak);
btnSpeak.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(
RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, "en-US");
try {
startActivityForResult(intent, RESULT_SPEECH);
txtText.setText("");
} catch (ActivityNotFoundException a) {
Toast t = Toast.makeText(getApplicationContext(),
"Opps! Your device doesn't support Speech to Text",
Toast.LENGTH_SHORT);
t.show();
}
}
});
//voice app
spinner = (Spinner)findViewById(R.id.spinner);
ArrayAdapter<String>adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item,paths);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener((OnItemSelectedListener) this);
//starting two threads which establishes the connection between the client
//to the two different servers
按钮btnopen =（按钮）findViewById（R.id.btnWindowAnimation）;
btnopen.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent slideactivity = new Intent(MainActivity.this, SlideActivity.class);
Bundle bndlanimation =
ActivityOptions.makeCustomAnimation(getApplicationContext(), R.anim.animation,R.anim.animation2).toBundle();
startActivity(slideactivity, bndlanimation);
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case RESULT_SPEECH: {
if (resultCode == RESULT_OK && null != data) {
ArrayList<String> text = data
.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
txtText.setText(text.get(0));
String abc=(String) txtText.getText();
Toast t = Toast.makeText(getApplicationContext(),
abc,
Toast.LENGTH_SHORT);
t.show();
switch(abc)
{
case "light on": onClickon(null);
break;
case "light off": onClickoff(null);
break;
case "fan on": onClickon2(null);
break;
case "fan off": onClickoff2(null);
break;
}
}
break;
}
}
}
public void onItemSelected(AdapterView<?> parent, View v, int position, long id) {
switch (position) {
case 1:
try{
//sending a message to the linino to play the song
PrintWriter out = new PrintWriter(new BufferedWriter(
new OutputStreamWriter(socket2.getOutputStream())),
true);
out.println("1");
}
catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
break;
case 2:
try{
//sending a message to the linino to play the song
PrintWriter out = new PrintWriter(new BufferedWriter(
new OutputStreamWriter(socket2.getOutputStream())),
true);
out.println("2");
}
catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
break;
case 3:
try{
//sending a message to the linino to play the song
PrintWriter out = new PrintWriter(new BufferedWriter(
new OutputStreamWriter(socket2.getOutputStream())),
true);
out.println("3");
}
catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
break;
}
}
public void onClickon(View view) {
try{
//sending the message to the linino as 0 to turn of the light
PrintWriter out = new PrintWriter(new BufferedWriter(
new OutputStreamWriter(socket.getOutputStream())),
true);
out.println("0");
}
catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
public void onClickoff(View view) {
try{
//sending the message to the linino as 1 to turn on the light
PrintWriter out = new PrintWriter(new BufferedWriter(
new OutputStreamWriter(socket.getOutputStream())),
true);
out.println("1");
}
catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
public void onClickon2(View view) {
try{
//sending the message to the linino as 0 to turn of the light
PrintWriter out = new PrintWriter(new BufferedWriter(
new OutputStreamWriter(socket.getOutputStream())),
true);
out.println("2");
}
catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
public void onClickoff2(View view) {
try{
//sending the message to the linino as 1 to turn on the light
PrintWriter out = new PrintWriter(new BufferedWriter(
new OutputStreamWriter(socket.getOutputStream())),
true);
out.println("3");
}
catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
/** Called when the user clicks the Send button */
@SuppressWarnings("deprecation")
public void sendMessage(View view) {
/*try {
socket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
socket2.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}*/
Intent intent = new Intent(this, DisplayMessageActivity.class);
//EditText editText = (EditText) findViewById(R.id.edit_message);
String message = "sdfsfdsf";
intent.putExtra(EXTRA_MESSAGE,message);
startActivity(intent);
}
class ClientThread implements Runnable {
@SuppressWarnings("deprecation")
@Override
public void run() {
try {
InetAddress serverAddr = InetAddress.getByName(SERVER_IP);
socket = new Socket(serverAddr, SERVERPORT);
} catch (UnknownHostException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
class ClientThread2 implements Runnable {
@Override
public void run() {
try {
InetAddress serverAddr = InetAddress.getByName(SERVER_IP2);
socket2 = new Socket(serverAddr, SERVERPORT2);
} catch (UnknownHostException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
}