Cach su dung SeekBar

this.seekBar = (SeekBar) findViewById(R.id.seekBar );

  

      this.seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {

          int progress = 0;

 

          // Khi giá trị progress thay đổi.

          @Override

          public void onProgressChanged(SeekBar seekBar, int progressValue, boolean fromUser) {

              progress = progressValue;

              textView.setText("Progress: " + progressValue + "/" + seekBar.getMax());

              Log.i(LOGTAG, "Changing seekbar's progress");

              Toast.makeText(getApplicationContext(), "Changing seekbar's progress", Toast.LENGTH_SHORT).show();

          }

 

          // Khi người dùng bắt đầu cử chỉ kéo thanh gạt.

          @Override

          public void onStartTrackingTouch(SeekBar seekBar) {

              Log.i(LOGTAG, "Started tracking seekbar");

              Toast.makeText(getApplicationContext(), "Started tracking seekbar", Toast.LENGTH_SHORT).show();

          }

 

          // Khi người dùng kết thúc cử chỉ kéo thanh gạt.

          @Override

          public void onStopTrackingTouch(SeekBar seekBar) {

              textView.setText("Progress: " + progress + "/" + seekBar.getMax());

              Log.i(LOGTAG, "Stopped tracking seekbar");

              Toast.makeText(getApplicationContext(), "Stopped tracking seekbar", Toast.LENGTH_SHORT).show();

 

          }

      });