方法一 ####使用LaunchImage加载启动图片
- (void) setUpLauchIvWithLaunchImage {
UIWindow *keyWindow = [[[UIApplication sharedApplication] delegate] window];
CGSize viewSize = keyWindow.bounds.size;
NSString *viewOrientation = @"Portrait"; //横屏请设置成 @"Landscape"
NSString *launchImage = nil;
NSArray* imagesDict = [[[NSBundle mainBundle] infoDictionary] valueForKey:@"UILaunchImages"];
for (NSDictionary* dict in imagesDict)
{
CGSize imageSize = CGSizeFromString(dict[@"UILaunchImageSize"]);
if (CGSizeEqualToSize(imageSize, viewSize) && [viewOrientation isEqualToString:dict[@"UILaunchImageOrientation"]])
{
launchImage = dict[@"UILaunchImageName"];
}
}
UIImageView *launchView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:launchImage]];
launchView.frame = self.view.bounds;
launchView.contentMode = UIViewContentModeScaleAspectFill;
[self.view addSubview:launchView];
[UIView animateWithDuration:2.0f
delay:0.0f
options:UIViewAnimationOptionBeginFromCurrentState
animations:^{
launchView.alpha = 0.0f;
launchView.layer.transform = CATransform3DScale(CATransform3DIdentity, 1.2, 1.2, 1);
}
completion:^(BOOL finished) {
[launchView removeFromSuperview];
}];
}
使用LaunchScreen.storyboard加载启动图片
- (void) setUpLauchIvWithLaunchScreen {
UIImage *launchImage = [UIImage imageNamed:@"ElementStartUpPg"];
UIImageView *launchView = [[UIImageView alloc] initWithImage:launchImage];
launchView.frame = self.view.bounds;
launchView.contentMode = UIViewContentModeScaleAspectFill;
[self.view addSubview:launchView];
[UIView animateWithDuration:2.0f
delay:0.0f
options:UIViewAnimationOptionBeginFromCurrentState
animations:^{
launchView.alpha = 0.0f;
launchView.layer.transform = CATransform3DScale(CATransform3DIdentity, 1.2, 1.2, 1);
}
completion:^(BOOL finished) {
[launchView removeFromSuperview];
}];
}
