For the iOS JP button, select IOS to learn programming source code, a good reference.

AnimationPlay
AnimationPlay.xcodeproj
.......................\project.pbxproj
.......................\project.xcworkspace
.......................\...................\contents.xcworkspacedata
.......................\...................\xcuserdata
.......................\...................\..........\jpoz.xcuserdatad
.......................\...................\..........\................\UserInterfaceState.xcuserstate
.......................\xcuserdata
.......................\..........\jpoz.xcuserdatad
.......................\..........\................\xcschemes
.......................\..........\................\.........\AnimationPlay.xcscheme
.......................\..........\................\.........\xcschememanagement.plist
.............\AnimationPlay-Info.plist
.............\AnimationPlay-Prefix.pch
.............\AnimationPlayAppDelegate.h
.............\AnimationPlayAppDelegate.m
.............\AnimationPlayViewController.h
.............\AnimationPlayViewController.m
.............\en.lproj
.............\........\AnimationPlayViewController.xib
.............\........\InfoPlist.strings
.............\........\MainWindow.xib
.............\JPStupidButton.h
.............\JPStupidButton.m
.............\main.m

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