Generally used classes by Daniel Nilsson. ColorPickerPreference class by Sergey Margaritov. Packed by Sergey Margaritov.
- Color Area
- Hue Slider
- Alpha Slider (disabled by default)
- Old & New Color
- Color Preview in Preferences List
Tested with APIv7, but maybe will work with early versions
You can see some tests inside
<com.att.preference.colorpicker.ColorPickerPreference
android:key="color1"
android:title="@string/color1_title"
android:summary="@string/color1_summary"
android:defaultValue="@integer/COLOR_BLACK" <!-- HEX value also accepted (v1.1) -->
alphaSlider="true" <!-- enable alpha slider via XML -->
/>
To enable Alpha Slider in your code use function: :: setAlphaSliderEnabled(boolean enable)