ios - 将按钮图像设置为从 xcode 库中选择的图像

Question

我正在制作一个应用程序，我在其中选择一个按钮，它会引导我到库中选择一张图片。我希望所选图片成为按钮的主图像。谁能帮帮我？

这是我用来访问该库的代码:

- (IBAction)image1Pressed:(id)sender {

if([UIImagePickerController isSourceTypeAvailable:
    UIImagePickerControllerSourceTypePhotoLibrary])
{
    UIImagePickerController *picker1= [[UIImagePickerController alloc]init];
    picker1.delegate = self;
    picker1.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    [self presentViewController:picker1 animated:YES completion:nil];
    [picker1 release];
}
}

任何帮助将不胜感激!

谢谢

Answer 1

您需要为按钮创建一个导出，我们将其命名为“imageButton”。让图像选择器完成剩下的工作:

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
UIImage *btnImage = [info objectForKey:UIImagePickerControllerOriginalImage];
    [imageButton setImage:btnImage forState:UIControlStateNormal];
}

完成。