Want to change the ImageView's picture at runtime, after 2 sec, 5 sec and 7 sec.

I tried to make it with thread, but with the thread I can't change it. Now I tried to make a handler but it's not good either.

Here is the original thread code:

@Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
                Thread timer = new Thread() {
                    public void run() {
                        int time = 0;
                        while (time <= 7000) {
                            try {
                                sleep(100);
                                time =+ 100;
                                if(time == 2000) {
                                    radar.setImageResource(R.drawable.radar_full);
                                }
                                if(time == 5000) {
                                    radar.setImageResource(R.drawable.radar_50);
                                }
                                if(time == 7000) {
                                    radar.setImageResource(R.drawable.radar_found);
                                }
                            } catch (InterruptedException e) {
                                // TODO Auto-generated catch block
                                e.printStackTrace();
        }
};
                    timer.start();
                    };
                };

I hope you can understand what I want to do, sorry I'm not perfect english

If you can, please give me an alternative code for this. It's very annoying, that only this is what I need for my program, but I can't do this. Sorry if this question, is so easy or something but I'm a beginner programmer.

You can try this.
Thread t=new Thread(new Runnable() {

public void run()
{
try
{
Thread.sleep(2000);// After 2 seconds
//Change Image
Thread.sleep(5000);// After 5 seconds
//Change Image
Thread.sleep(7000);// After 7 seconds
//Change Image
}
catch(Exception e)
{

}
}
});
t.start();

Hardik Trivedi wrote:You can try this.
Thread t=new Thread(new Runnable() {

public void run()
{
try
{
Thread.sleep(2000);// After 2 seconds
//Change Image
Thread.sleep(5000);// After 5 seconds
//Change Image
Thread.sleep(7000);// After 7 seconds
//Change Image
}
catch(Exception e)
{

}
}
});
t.start();

Thanks! I will try it tomorrow (ehhmm... today

)

Hardik Trivedi wrote:You can try this.
Thread t=new Thread(new Runnable() {

public void run()
{
try
{
Thread.sleep(2000);// After 2 seconds
//Change Image
Thread.sleep(5000);// After 5 seconds
//Change Image
Thread.sleep(7000);// After 7 seconds
//Change Image
}
catch(Exception e)
{

}
}
});
t.start();

Thanks, I tried it. My application doesn't show any error, or warning, but it's produce the "stopped unexpectedly" error. Can this produce it, or there is an another problem?

D Hagy wrote:I tried to make it with thread, but with the thread I can't change it. Now I tried to make a handler but it's not good either.

Here is the original thread code:

@Override public void onClick(View v) { // TODO Auto-generated method stub Thread timer = new Thread() { public void run() { int time = 0; while (time <= 7000) { try { sleep(100); time =+ 100; if(time == 2000) { radar.setImageResource(R.drawable.radar_full); } if(time == 5000) { radar.setImageResource(R.drawable.radar_50); } if(time == 7000) { radar.setImageResource(R.drawable.radar_found); } } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } }; timer.start(); }; };

I hope you can understand what I want to do, sorry I'm not perfect english If you can, please give me an alternative code for this. It's very annoying, that only this is what I need for my program, but I can't do this. Sorry if this question, is so easy or something but I'm a beginner programmer.

I didn't actually try it, but when you say " but with the thread I can't change it", I'm assuming that you are getting a CalledFromWrongTreadException (you can see the exception in the LogCat).
The line radar.setImageResource(R.drawable.radar_full); and other two need to run on the UI thread, so replace this single line with the following block - the other two would need to be changed too :

Nidhi Sar wrote:

D Hagy wrote:I tried to make it with thread, but with the thread I can't change it. Now I tried to make a handler but it's not good either.

Here is the original thread code:

@Override public void onClick(View v) { // TODO Auto-generated method stub Thread timer = new Thread() { public void run() { int time = 0; while (time <= 7000) { try { sleep(100); time =+ 100; if(time == 2000) { radar.setImageResource(R.drawable.radar_full); } if(time == 5000) { radar.setImageResource(R.drawable.radar_50); } if(time == 7000) { radar.setImageResource(R.drawable.radar_found); } } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } }; timer.start(); }; };

I hope you can understand what I want to do, sorry I'm not perfect english If you can, please give me an alternative code for this. It's very annoying, that only this is what I need for my program, but I can't do this. Sorry if this question, is so easy or something but I'm a beginner programmer.

I didn't actually try it, but when you say " but with the thread I can't change it", I'm assuming that you are getting a CalledFromWrongTreadException (you can see the exception in the LogCat).
The line radar.setImageResource(R.drawable.radar_full); and other two need to run on the UI thread, so replace this single line with the following block - the other two would need to be changed too :

runOnUiThread(new Runnable() { @Override public void run() { radar.setImageResource(R.drawable.radar_full); }

Thanks I could make it!