Iphone UIButton背景颜色 [英] Iphone UIButton background color

问题描述

我在循环中以编程方式创建了一些 UIButton 但是我在设置按钮的背景颜色方面遇到了一些问题。

I'm creating some UIButtons programmatically in a loop but I'm having some problem with setting the background color of the button.

按钮的颜色始终显示为白色。
但是我只使用backgroundcolor中的2种颜色。
例如：红色：255绿色：0蓝色：200

The color of the button always shows up as white. But works fine with I'm only using 2 colors in the backgroundcolor. Eg : red : 255 green:0 blue :200

这是我用来添加按钮的代码。

Here is the code I'm using to add the button.

    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(80, 20 + (i*75), 200, 75);
    button.layer.cornerRadius = 10;
    button.layer.borderWidth = 1;
    [button setTitle:@"saf" forState:UIControlStateNormal];
    [button addTarget:self action:@selector(moveLocation:) forControlEvents:UIControlEventTouchUpInside];
    [button setBackgroundColor:[UIColor colorWithRed:255 green:180 blue:200 alpha:1]];
    button.autoresizingMask = UIViewAutoresizingFlexibleWidth;
    [scrollView addSubview:button];

推荐答案

我相信你正在构建你的UIColor错误。

I believe you are building your UIColor wrong.

试试这个：

[button setBackgroundColor:[UIColor colorWithRed:(255/255.0) green:(180/255.0) blue:(200/255.0) alpha:1]];

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