Right, just move your obtainMessage() inside your loop.
I personally use Message.obtain(), although I'm not sure what the difference is.
On Wed, Feb 2, 2011 at 11:45 PM, Dianne Hackborn <hack...@android.com> wrote:
> 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 <yogi.ru...@gmail.com> 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
>>
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>
>
>
> --
> Dianne Hackborn
> Android framework engineer
> hack...@android.com
>
> 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.
>
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