You are sending the same messages into the handler while they are still being dispatched. Each message you send needs to be a new one you obtain.
On Wed, Feb 2, 2011 at 8:16 PM, yogi <[email protected]> wrote: > Hi all, > I have created to thread in an application, and from these threads i > am sending a value. > But the App has started but after 5-6 seconds it crashes and with the > following log error. > > > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): FATAL EXCEPTION: main > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): > android.util.AndroidRuntimeException: { what=1000 when=2469427 obj=4 } > This message is already in use. > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): at > android.os.MessageQueue.enqueueMessage(MessageQueue.java:171) > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): at > android.os.Handler.sendMessageAtTime(Handler.java:457) > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): at > android.os.Handler.sendMessageDelayed(Handler.java:430) > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): at > android.os.Handler.sendEmptyMessageDelayed(Handler.java:394) > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): at > android.os.Handler.sendEmptyMessage(Handler.java:379) > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): at > android.view.ViewRoot.scheduleTraversals(ViewRoot.java:652) > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): at > android.view.ViewRoot.requestLayout(ViewRoot.java:596) > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): at > android.view.View.requestLayout(View.java:8125) > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): at > android.view.View.requestLayout(View.java:8125) > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): at > android.view.View.requestLayout(View.java:8125) > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): at > android.view.View.requestLayout(View.java:8125) > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): at > android.view.View.requestLayout(View.java:8125) > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): at > android.widget.TextView.checkForRelayout(TextView.java:5378) > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): at > android.widget.TextView.setText(TextView.java:2688) > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): at > android.widget.TextView.setText(TextView.java:2556) > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): at > android.widget.TextView.setText(TextView.java:2531) > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): at > com.demo.app.handlerapp$3.handleMessage(handlerapp.java:95) > 02-03 09:40:19.598: ERROR/AndroidRuntime(1684): at > android.os.Handler.dispatchMessage(Handler.java:99) > > Please refer to the following code which i have written. > > package com.demo.app; > > import android.app.Activity; > import android.os.Bundle; > import android.os.Handler; > import android.os.Message; > import android.view.View; > import android.view.View.OnClickListener; > import android.widget.Button; > import android.widget.TextView; > import android.widget.Toast; > > public class handlerapp extends Activity implements OnClickListener{ > /** Called when the activity is first created. */ > @Override > public void onCreate(Bundle savedInstanceState) { > super.onCreate(savedInstanceState); > setContentView(R.layout.main); > button=(Button)findViewById(R.id.Button01); > tw=(TextView)findViewById(R.id.TextView01); > tw.setText("click button to start"); > button.setOnClickListener(this); > } > @Override > public void onClick(View v) { > // TODO Auto-generated method stub > switch(v.getId()){ > case R.id.Button01: > Toast.makeText(getApplicationContext(), "clicked", > 2).show(); > if(!th.isAlive()) > th.start(); > if(!th1.isAlive()) > th1.start(); > break; > } > > } > Thread th= new Thread(new Runnable(){ > > @Override > public void run() { > // TODO Auto-generated method stub > Message msg= handler.obtainMessage(); > for(int i=2;i<1000;i++) > { > try { > Thread.sleep(5000); > } catch (InterruptedException e) { > // TODO Auto-generated catch block > e.printStackTrace(); > } > msg.obj= i; > msg.what=2; > handler.sendMessage(msg); > } > > } > > }); > Thread th1= new Thread(new Runnable(){ > @Override > public void run() { > // TODO Auto-generated method stub > Message msg= handler.obtainMessage(); > for(int i=2;i<1000;i++) > { > try { > Thread.sleep(3000); > } catch (InterruptedException e) { > // TODO Auto-generated catch block > e.printStackTrace(); > } > msg.obj= i; > msg.what=1; > handler.sendMessage(msg); > } > > } > > }); > > Handler handler = new Handler(){ > @Override > public void handleMessage(Message msg) { > // TODO Auto-generated method stub > super.handleMessage(msg); > switch(msg.what){ > case 1: > Toast.makeText(getApplicationContext(), > msg.obj.toString(), > 1).show(); > break; > case 2: > > tw.setText(msg.obj.toString()); > removeMessages(msg.what, msg.obj); > break; > } > } > > }; > > > Button button; > TextView tw; > } > > > > Thanks in Advance > Regards > Yogi > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected]<android-developers%[email protected]> > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- Dianne Hackborn Android framework engineer [email protected] Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
