Question

我有2张图片，一张金色绿色，

当分数为100时，如果分数低于100分，则图像必须仅为金色图像，图像必须更改为绿色图像。

}

if (score < 100) {
    closeonechange.text = @"Correct!";

} else {
    closeonechange.text = @"Perfect!";
}

绿色图像称为greenOne.png

这是怎么做到的？

Answer 1

如果你有两个UIImageView，你可以使用他们的hidden属性来隐藏/显示它们：

if (score < 100) {
    closeonechange.text = @"Correct!";
    imageView1.hidden = NO;
    imageView2.hidden = YES;

} else {
    closeonechange.text = @"Perfect!";
    imageView1.hidden = YES;
    imageView2.hidden = NO;
}

如果您只有一个UIImageView，则可以动态更改其图像：

if (score < 100) {
    closeonechange.text = @"Correct!";
    imageView.image = [UIImage imageNamed:@"correct"];

} else {
    closeonechange.text = @"Perfect!";
    imageView.image = [UIImage imageNamed:@"perfect"];
}

Answer 2

尝试这样的事情：

UIImage scoreImage;
if (score < 100) {
    closeonechange.text = @"Correct!";
scoreImage = [UIImage imageNamed:@"yellowImage"];

} else {
    closeonechange.text = @"Perfect!";
scoreImage = [UIImage imageNamed:@"greenOne"];
}

[scoreImageView setImage:scoreImage];

Answer 3

首先定义UIImageView，例如UIImageView *imageView = [UIImageView alloc]; 并在您的方法中使用如下代码。

if (score < 100) {
  closeonechange.text = @"Correct!";
  imageView.image= [UIImage imageNamed:@"greenOne.png"];
} else {
  closeonechange.text = @"Perfect!";
  imageView.image= [UIImage imageNamed:@"goldOne.png"];
}

如何在分数变化时替换图像视图上的图像？

3 个答案: