Question

I have a Button within LinearLayout and I want to retreive it’s height.

I used sample_button.getHeight(), but it gives different valus of height.

i.e. I’m modifying height of the button based on seekbar progress as following :

public void onProgressChanged(SeekBar seekBar, int progress,
            boolean fromTouch) {

LinearLayout.LayoutParams lp2 = new LinearLayout.LayoutParams(
                new ViewGroup.MarginLayoutParams(50, progress * 20));

        lp2.setMargins(200, 0, 0, 0);
        sample_button.setLayoutParams(lp2);

Log.i("Activity", "progress = " + progress);
Log.i("Activity",
                "sample_button.getHeight() = " + sample_button.getHeight());
}

and the log values are as following:

progress = 1
sample_button.getHeight() = 60

progress = 2
sample_button.getHeight() = 20

progress = 3
sample_button.getHeight() = 40

progress = 2
sample_button.getHeight() = 60

progress = 3
sample_button.getHeight() = 40

progress = 4
sample_button.getHeight() = 60

progress = 3
sample_button.getHeight() = 80

Note that button is getting displayed properly but when progress=2 , it shows height=20 first but then it shows height=60 and so on for other progress value as shown above.

Am I doing anything wrong. Any help appreciated.

Answer 1

Have you tried it this way:

ViewGroup.LayoutParams params = sample_button.getLayoutParams();
params.height = progress * 20;
sample_button.setLayoutParams(params);