I am trying to build a dialog that uses a custom layout, but i cant get the volume and gain values from the seekbar, it gives a nullpointer exception. Here's the code:
Dialog soundoptions= new Dialog(this);
soundoptions.setContentView(R.layout.soundoptions);
soundoptions.setTitle("Sound Options");
soundoptions.setOnDismissListener(new OnDismissListener() {
@Override
public void onDismiss(DialogInterface dialog) {
// TODO Auto-generated method stub
SeekBar vs=(SeekBar) findViewById(R.id.volume);
SeekBar vg=(SeekBar) findViewById(R.id.gain);
vg.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
// TODO Auto-generated method stub
gain=progress;
}
});
vs.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
// TODO Auto-generated method stub
volume=progress;
}
});
vs and vg are null.
Use ...
SeekBar vs=(SeekBar) dialog.findViewById(R.id.volume);
SeekBar vg=(SeekBar) dialog.findViewById(R.id.gain);
Note the "dialog" ...
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