ios - textInputBox.layer.borderColor 在代码中不起作用

Question

//sample problem
myInputTextBox.layer.borderColor= CFBridgingRetain([UIColor grayColor]); //not working
myInputTextBox.layer.borderColor= [UIColor grayColor];          //implicit conversion, not working
myInputTextBox.layer.borderColor= (__bridge CGColorRef)([UIColor grayColor]);//not working

我度过了一段美好的时光。 application,myInputTextBox 是 UITextField 对象。请帮我解决 Xcode for IOS 中的这个问题

//Actual code is 
UITextField *_PI[6];
for(int i=0;i<totalChances;i++){
    _PI[i]=[[UITextField alloc] initWithFrame:CGRectOffset(CGRectMake(15,55, 50,30), 49*i,0)];
    _PI[i].placeholder=[NSString stringWithFormat:@"P(%c)",(i+'A')];
    _PI[i].Delegate=self;
    _PI[i].font=fontInputs;
    _PI[i].borderStyle=UITextBorderStyleLine;
    _PI[i].layer.borderWidth=0.5f;//even if i change the border width to 2.0, it does not work
    _PI[i].layer.borderColor= (__bridge CGColorRef)([UIColor grayColor]);//this line doesn't works
    [self.view addSubview:_PI[i]];
}

Answer 1

尝试设置边框宽度

 myInputTextBox.layer.borderWidth = 2.0f;

编辑:

将您的代码修改为:

    UITextField *_PI[6];
    for(int i=0;i<totalChances;i++){
        _PI[i]=[[UITextField alloc] initWithFrame:CGRectOffset(CGRectMake(15,55, 50,30), 49*i,0)];
        _PI[i].placeholder=[NSString stringWithFormat:@"P(%c)",(i+'A')];
        _PI[i].delegate=self; // you had 'd' capital
        _PI[i].font=fontInputs;
        _PI[i].borderStyle=UITextBorderStyleLine;
        _PI[i].layer.borderWidth=5.5f;//even if i change the border width to 2.0, it does not work
        _PI[i].layer.borderColor= [UIColor grayColor].CGColor;//this line doesn't works
        [self.view addSubview:_PI[i]];
    }