ColorPickerAdvancedComponent.java 文件源码

/**
 * Initializes the views.
 *
 * @param rootView View that contains all the content, such as the label, gradient view, etc.
 * @param textResourceId The resource ID of the text to show on the label.
 * @param seekBarMax The range of the seek bar.
 * @param seekBarListener The listener for when the seek bar value changes.
 */
ColorPickerAdvancedComponent(final View rootView,
        final int textResourceId,
        final int seekBarMax,
        final OnSeekBarChangeListener seekBarListener) {
    mGradientView = rootView.findViewById(R.id.gradient);
    mText = (TextView) rootView.findViewById(R.id.text);
    mText.setText(textResourceId);
    mGradientDrawable = new GradientDrawable(GradientDrawable.Orientation.LEFT_RIGHT, null);
    mSeekBar = (SeekBar) rootView.findViewById(R.id.seek_bar);
    mSeekBar.setOnSeekBarChangeListener(seekBarListener);
    mSeekBar.setMax(seekBarMax);
    // Setting the thumb offset means the seek bar thumb can move all the way to each end
    // of the gradient view.
    Context context = rootView.getContext();
    int offset = context.getResources()
                        .getDrawable(R.drawable.color_picker_advanced_select_handle)
                        .getIntrinsicWidth();
    mSeekBar.setThumbOffset(offset / 2);
}