some one can use to pick color rub which can learn how to use at iOS .

Color-Picker-for-iOS-master
...........................\ColorPicker.xcodeproj
...........................\.....................\project.pbxproj
...........................\.....................\project.xcworkspace
...........................\.....................\...................\contents.xcworkspacedata
...........................\ColorPicker
...........................\...........\ColorPicker-Info.plist
...........................\...........\ColorPicker-Prefix.pch
...........................\...........\ColorPickerAppDelegate.h
...........................\...........\ColorPickerAppDelegate.m
...........................\...........\ColorPickerController.h
...........................\...........\ColorPickerController.mm
...........................\...........\CrosshairSelector.png
...........................\...........\CrosshairSelector@2x.png
...........................\...........\Default-Landscape.png
...........................\...........\Default-Portrait.png
...........................\...........\Default.png
...........................\...........\Default@2x.png
...........................\...........\GradientView.h
...........................\...........\GradientView.mm
...........................\...........\HorizontalSelector.png
...........................\...........\HorizontalSelector@2x.png
...........................\...........\HueSaturationGradient.png
...........................\...........\Icon-72.png
...........................\...........\Icon.png
...........................\...........\Icon@2x.png
...........................\...........\IconSmall-50.png
...........................\...........\IconSmall.png
...........................\...........\IconSmall@2x.png
...........................\...........\en.lproj
...........................\...........\........\Localizable.strings
...........................\...........\iPad
...........................\...........\....\ColorPickerAppDelegate_iPad.h
...........................\...........\....\ColorPickerAppDelegate_iPad.m
...........................\...........\....\en.lproj
...........................\...........\....\........\MainWindow_iPad.xib
...........................\...........\iPhone
...........................\...........\......\ColorPickerAppDelegate_iPhone.h
...........................\...........\......\ColorPickerAppDelegate_iPhone.m
...........................\...........\......\en.lproj
...........................\...........\......\........\MainWindow_iPhone.xib
...........................\...........\main.m
...........................\README

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