Changing step values in seekbar?

Question

I have a seekbar, while moving it I want to change values from 0 to 200. I have a TextView, where I display those values while moving the seekbar. But I don't want to have every value from that interval(0,1,2,3,4,5...), but to have 10, 20, 30...so on. So when I move the seekbar, I want to display 10,20,30,40....to 200. Can somebody give me a hint or an example how to do this?

Answer 1

Try below code

SeekBar seekBar = (SeekBar)layout.findViewById(R.id.seekbar); seekBar.setProgress(0); seekBar.incrementProgressBy(10); seekBar.setMax(200); TextView seekBarValue = (TextView)layout.findViewById(R.id.seekbarvalue); seekBarValue.setText(tvRadius.getText().toString().trim());  seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener(){      @Override     public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {         progress = progress / 10;         progress = progress * 10;         seekBarValue.setText(String.valueOf(progress));     }      @Override     public void onStartTrackingTouch(SeekBar seekBar) {      }      @Override     public void onStopTrackingTouch(SeekBar seekBar) {      } }); 

setProgress(int) is used to set starting value of the seek bar

setMax(int) is used to set maximum value of seek bar

If you want to set boundaries of the seekbar then you can check the progressbar value in the onProgressChanged method. If the progress is less than or greater than the boundary then you can set the progress to the boundary you defined.

Answer 2

The easieset way I can think of, is simply defining:

SeekBar yourSeekBar = (SeekBar)findViewById(R.id.yourSeekBarId); yourSeekbar.setMax(20); 

Next, override those methods (the empty methods are also required, even if they are empty):

yourSeekbar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {                   @Override         public void onStopTrackingTouch(SeekBar seekBar) {          }          @Override         public void onStartTrackingTouch(SeekBar seekBar) {          }          @Override         public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {             if (fromUser) {                 if (progress >= 0 && progress <= sizeSeekBar.getMax()) {                                              String progressString = String.valueOf(progress * 10);                     yourTextView.setText(progressString); // the TextView Reference                     seekBar.setSecondaryProgress(progress);                 }             }          }     }); 

The idea is to only define 20 values for the seekbar, but always multiply the value by 10 and display that value. If you do not really need 200 values, then there is no point in using 200 values.