public class MainActivity extends AppCompatActivity {
ListView listView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView = findViewById(R.id.listView);
SeekBar seekBar = findViewById(R.id.seekBar);
int startingPosition = 10;
int max = 20;
seekBar.setMax(max);
setValues(startingPosition);
seekBar.setProgress(startingPosition);
seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int i, boolean b) {
int min = 1;
int timesTableNumber;
if (i < min) {
timesTableNumber = min;
seekBar.setProgress(min); //prevents it from hitting the edge of seekbar
} else {
timesTableNumber = i;
}
Log.i("Seekbar value", Integer.toString(timesTableNumber));
setValues(timesTableNumber);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) { }
@Override
public void onStopTrackingTouch(SeekBar seekBar) { }
});
}
public void setValues(int factor) {
ArrayList<String> valuesArray = new ArrayList<>();
for (int i = 1; i <21 ; i++) {
valuesArray.add(Integer.toString(i*factor));
}
ArrayAdapter<String> arrayAdapter = new ArrayAdapter(this,android.R.layout.simple_list_item_1, valuesArray);
listView.setAdapter(arrayAdapter);
}
}