Let textField keyboard disappears, selection of learning IOS programming source code, a good reference.

textField
.........\Classes
.........\.......\textFieldAppDelegate.h
.........\.......\textFieldAppDelegate.m
.........\.......\textFieldViewController.h
.........\.......\textFieldViewController.m
.........\main.m
.........\MainWindow.xib
.........\textField-Info.plist
.........\textField.xcodeproj
.........\...................\p.mode1v3
.........\...................\p.pbxuser
.........\...................\project.pbxproj
.........\textFieldViewController.xib
.........\textField_Prefix.pch
__MACOSX
........\textField
........\.........\Classes
........\.........\.......\._textFieldViewController.h
........\.........\.......\._textFieldViewController.m

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