Thank you for your answer !
imgView.setBitmap(bm) is working very well without failure in thred routine
as you described
but I need refreshing of screen with new bitmap image data repeatedly.
In addition to your code, for the purpose of refreshing new image data, I
added infinite loop with while(isStop) operation.
public MyThread extends Thread {
Handler handler;
public MyThread() {
super();
handler = new Handler();
}
public void run() {
..
...
handler.post(new Runnable() {
public void run() {
while(isStop){
imgData = getImage(); // imgData receive jpeg image data
bm = BitmapFactory.decodeByteArray(imgData,0,imgData.length); //
convert jpeg image into bitmap
imgView.setBitmap(bm);
}
}
});
...
}
}
then this program works with no error.
While loop goes on...
I can have right image data, but display never refresh with new image data.
and program didn't response any kind of input such like a button.
2009/3/3 Streets Of Boston <[email protected]>
>
> imgView.setBitmap can not be called from any other thread than the
> main thread (i.e. thread on which you created your view).
>
> do this instead:
>
> handler.post(new Runnable() {
> public void run() {
> imgView.setBitmap(bm);
> }
> });
>
> The 'handler' can be created by just calling 'new Handler()' on the
> main thread, e.g. when you create your worker-thread.
>
> public MyThread extends Thread {
> Handler handler;
> public MyThread() {
> super();
> handler = new Handler();
> }
> public void run() {
> ..
> ...
> handler.post(new Runnable() {
> public void run() {
> imgView.setBitmap(bm);
> }
> });
> ...
> }
> }
> On Mar 2, 4:47 am, rex <[email protected]> wrote:
> > Hi~
> >
> > I'm trying to periodically change image data in ImageView in the
> > thread routine
> > but when I put this code in the tread routine, program is killed.
> >
> > imgView.setBitmap(bm);
> >
> > here is my thread code
> > ...
> >
> > private byte[] imgData;
> > private Bitmap bm;
> >
> > new Thread (new Runnable()
> > {
> > public void run()
> > {
> > while(!isStop){
> > imgData = getImage();
> > bm = BitmapFactory.decodeByteArray(imgData,
> > 0,imgData.length);
> > imgView.setBitmap(bm); --> This caused error!!
> > }
> > }
> >
> > }).start();
> >
> > ...
> >
> > imgData is receiving jpeg image data from somewhere.
> > Outside thread routine, image data is displayed well.
> >
> > If above is impossible, are there any other ways to periodically image
> > data refreshing on screen ?
> >
> > Thanks!
> >
>
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