目标样式:

直接上代码:
遵守协议

<UIPickerViewDataSource,UIPickerViewDelegate>

实现方法

//创建 UITextField 设置setInputAccessoryView 为自己定义Toolbar 而且将键盘样式更改为键盘选择器
-(void)creatTextField{UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(10, 64, [UIScreen mainScreen].bounds.size.width - 20, 44)];[textField setInputAccessoryView:self.kbToolbar];//自己定义键盘选择器UIPickerView *pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0, 50, kScreenWidth, 320)];[pickerView setDataSource:self];[pickerView setDelegate:self];//选择指示器[pickerView setShowsSelectionIndicator:YES];//键盘类型自己定义[self.sourceFD setInputView:pickerView];[textField setInputView:pickerView];[self.view addSubview:textField];
}

实现数据源和代理方法

#pragma mark - UIPickerViewDelegate 和 UIPickerViewDataSource
//必须实现
// returns the number of 'columns' to display. ->选择器一共同拥有多少列!
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView{return 1;
}// returns the # of rows in each component.. -> 选择器每列有多少行!
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{return 5;
}//选择器每行名称
-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{if (row == 0) {return @"人民币(RMB)";}else if (row == 1){return @"美元(USD)";}else if (row == 2){return @"英镑(GBP)";}else if (row == 3){return @"日元(JPY)";}else if (row == 4){return @"欧元(EUR)";}else{return @"..";}
}