#import "ViewController.h" @interface ViewController () //PickerをStoryBordを使わずに生成するので、デリゲート用のプロトコルを事前に宣言しておく <UITextFieldDelegate,UIPickerViewDelegate,UIPickerViewDataSource> { UIPickerView *testPickerView; } @property (weak, nonatomic) IBOutlet UITextField *textField1</uitextfielddelegate,uipickerviewdelegate,uipickerviewdatasource>…

//ViewController.m -(BOOL)prefersStatusBarHidden{ return YES; }