Check if seekbar value is null or empty

artist

I am trying to check if the value of seekbar is less than 0. Currently my seekbar has a value between 0-9.

seekbar1 = (SeekBar)findViewById(R.id.sb);
seekbar1.setOnSeekBarChangeListener( new OnSeekBarChangeListener(){

    @Override
    public void onProgressChanged(SeekBar arg0, int progress, boolean arg2) {
        // TODO Auto-generated method stub

        tv.setText("" + progress);

    }

String str = tv.getText().toString();
int number = Integer.parseInt(str);

if(number >= 0){

// do something }

How to check if a number is less than 0? I tried doing if(number < 0) but it crashes. thanks

 if(number >= 0){

// do something }

else{

//do something} //but crash

Here Comes Ratatouille

This:

seekbar1.setOnSeekBarChangeListener( new OnSeekBarChangeListener(){

@Override
public void onProgressChanged(SeekBar arg0, int progress, boolean arg2) {
    // TODO Auto-generated method stub

    tv.setText("" + progress);

}

Called when the search bar changes

and this:

String str = tv.getText().toString();
int number = Integer.parseInt(str);

if(number >= 0){

will be called immediately, regardless of whether the search bar has changed,

So to make sure the textview is not used nullin this case, set the search bar position on the onCreateright to 0 after initialization .

Hope that helps.

Check if seekbar value is null or empty

artist I am trying to check if the value of seekbar is less than 0. Currently my seekbar has a value between 0-9. seekbar1 = (SeekBar)findViewById(R.id.sb); seekbar1.setOnSeekBarChangeListener( new OnSeekBarChangeListener(){ @Override public void onPr

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