[SOLVED][Q] Cannot find a symbol, while other symbols are found fine - Android Q&A, Help & Troubleshooting

I couldn't think of a better way to word the title, but the issue I'm having is this: I'm using HoloColorPicker by Lars Werkman. Now I have correctly imported the library, I can see the ColorPicker and other views from the library in my app, the only symbol that is failing to be found is OnColorChangedListener. I looked through the code of the library and it is an interface that is defined in ColorPicker.java, which I am importing, and the ColorPicker view itself, as I already stated, is appearing in my GUI fine.

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Here is my associated code:
Code:
import com.larswerkman.holocolorpicker.SaturationBar;
import com.larswerkman.holocolorpicker.ColorPicker;
import com.larswerkman.holocolorpicker.ValueBar;
public class ColorChooserDialog extends DialogFragment {
private String title;
private CustomColor cur_color;
private boolean edit = false;
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the Builder class for convenient dialog construction
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setTitle(R.string.choose_color_dialog_title);
// Inflate layout color chooser view and set to builder
LayoutInflater layout_inflater = getActivity().getLayoutInflater();
View view = layout_inflater.inflate(R.layout.color_chooser_view, null);
builder.setView(view);
// Get views by IDs
EditText hex_input = (EditText)view.findViewById(R.id.hexInput);
EditText red_input = (EditText)view.findViewById(R.id.redInput);
EditText green_input = (EditText)view.findViewById(R.id.greenInput);
EditText blue_input = (EditText)view.findViewById(R.id.blueInput);
ColorPicker color_picker = (ColorPicker)view.findViewById(R.id.colorPicker);
SaturationBar sat_bar = (SaturationBar)view.findViewById(R.id.saturationBar);
ValueBar val_bar = (ValueBar)view.findViewById(R.id.valueBar);
// Connect bars to color picker
color_picker.addSaturationBar(sat_bar);
color_picker.addValueBar(val_bar);
// When color is changed via picker, set text fields
color_picker.setOnColorChangedListener(new OnColorChangedListener() {
@Override
public void onColorChanged(int color) {
//TODO
}
});
// Add listener for when HEX value is changed
hex_input.addTextChangedListener(new TextWatcher() {
@Override
public void afterTextChanged(Editable editable) {}
@Override
public void beforeTextChanged(CharSequence chars, int start, int count, int after) {}
@Override
public void onTextChanged(CharSequence chars, int start, int before, int count) {
//TODO
}
});
builder.setPositiveButton(
R.string.ok_button,
new DialogInterface.OnClickListener() {
// User clicked OK, add color to palette
public void onClick(DialogInterface dialog, int id) {
//TODO
}
}
);
builder.setNegativeButton(
R.string.cancel_button,
new DialogInterface.OnClickListener() {
// User cancelled the dialog, don't create palette
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
}
);
// Create the AlertDialog object and return it
return builder.create();
}
}

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OK, so I figured it out, I didn't notice this at first because Java is not my first language, but the OnColorChangedListener is within the ColorPicker class, so I instead of using this:
Code:
color_picker.setOnColorChangedListener(new OnColorChangedListener() {
@Override
public void onColorChanged(int color) {
//TODO
}
});
I needed to use this:
Code:
color_picker.setOnColorChangedListener(new [B]ColorPicker.[/B]OnColorChangedListener() {
@Override
public void onColorChanged(int color) {
//TODO
}
});