iOS 输入框 UITextFiled 的一些简单设置

这个是自己做着玩的一个登录界面。这就是所有的代码，就是一个简单的使用。想做的更好的可以自己自定义一个输入框。

NSNumber * value = [NSNumber numberWithInteger:NSTextAlignmentCenter];

    //手机号

    _PhoneTF.layer.borderColor =[UIColor colorWithRed:245.0/255.0 green:255.0/255.0 blue:250.0/255.0 alpha:0.5].CGColor;

    [_PhoneTF setValue:[UIColor colorWithRed:245.0/255.0 green:255.0/255.0 blue:250.0/255.0 alpha:0.5] forKeyPath:@"_placeholderLabel.textColor"];

    [_PhoneTF setValue:value forKeyPath:@"_placeholderLabel.textAlignment"];

    [_PhoneTF.layer setCornerRadius:18.0];

    [_PhoneTF.layer setBorderWidth:1.0];

    _PhoneTF.textAlignment = NSTextAlignmentCenter;

    _PhoneTF.textColor= [UIColorwhiteColor];

    _PhoneTF.keyboardType =UIKeyboardTypePhonePad;

    //密码

    _passWordTF.layer.borderColor =[UIColor colorWithRed:245.0/255.0 green:255.0/255.0 blue:250.0/255.0 alpha:0.5].CGColor;

    [_passWordTF.layer setCornerRadius:18.0];

    [_passWordTF.layer setBorderWidth:1.0];

    [_passWordTF setValue:[UIColor colorWithRed:245.0/255.0 green:255.0/255.0 blue:250.0/255.0 alpha:0.5] forKeyPath:@"_placeholderLabel.textColor"];

    [_passWordTF setValue:value forKeyPath:@"_placeholderLabel.textAlignment"];

    _passWordTF.textColor= [UIColorwhiteColor];

    _passWordTF.textAlignment = NSTextAlignmentCenter;

    //登录按钮

    [_LoginButton.layer setCornerRadius:18.0];

    [_LoginButton.layer setBorderWidth:1.0];

    _LoginButton.layer.borderColor =[UIColor clearColor].CGColor;