我有一个 Uibutton 并设置了它的默认背景图像，我在运行时更改了它的图像，但我想保留选定的图像。但每次我点击 uibutton 图像更改为默认值。这是代码
- (void)changeColorOnRuntTime:(UIColor *)color{
[btnTmpForColorPicker setBackgroundImage:[self imageNamed:@"customColor.png" withTint:color] forState:UIControlStateNormal];
[btnTmpForColorPicker setBackgroundImage:[self imageNamed:@"customColor.png" withTint:color] forState:UIControlStateHighlighted];
// [btnTmpForColorPicker seti];
// tmpColor = [UIColor alloc]ini;
tmpColor = [color copy];
// NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
// [defaults setValue:color forKey:@"CustomPreColor"];
[[NSUserDefaults standardUserDefaults] setObject:[NSKeyedArchiver archivedDataWithRootObject:color] forKey:@"CustomPreColor"];
}
并在 btnHandler
if (popOverColorPicker.popoverVisible) {
[popOverColorPicker dismissPopoverAnimated:YES];
}
else
{
sdViewController = [[SDColorPickerViewController alloc]init];
sdViewController.color = [UIColor whiteColor];
sdViewController.tag = 1;
sdViewController.delegate = self;
// CGRect rect = CGRectMake(viewController.view.frame.origin.x, viewController.view.frame.origin.y, viewController.view.frame.size.width, 380);
// viewController.view.frame = rect;
btnTmpForColorPicker = (UIButton*)sender;
UIButton *senderbt = (UIButton*) sender;
if (tmpColor) {
[btnTmpForColorPicker setBackgroundImage:[self imageNamed:@"customColor.png" withTint:tmpColor] forState:UIControlStateNormal];
[btnTmpForColorPicker setBackgroundImage:[self imageNamed:@"customColor.png" withTint:tmpColor] forState:UIControlStateHighlighted];
}
// [popOverColorPicker setPopoverContentSize:CGSizeMake(viewController.view.frame.size.width, 380)];
popOverColorPicker = [[UIPopoverController alloc]initWithContentViewController:sdViewController];
[popOverColorPicker setPopoverContentSize:CGSizeMake(300, 390)];
[popOverColorPicker presentPopoverFromRect:senderbt.frame inView:self permittedArrowDirections:UIPopoverArrowDirectionDown animated:YES];