【发布时间】:2012-06-01 17:08:26
【问题描述】:
我有一个通用应用程序。在此应用程序中,我将介绍图像设置为启动画面。对于 iPhone,我需要设置不同的图像作为启动屏幕,而对于 iPad,我需要设置不同的图像。当我使用下面的代码时,它适用于 iphone 但不适用于 ipad。这是我的代码。
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
[self copyDatabaseIfNeeded];
[window addSubview:navigationController.view];
[window makeKeyAndVisible];
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
{
splashViewBg = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 768, 1004)];
splashViewBg.image = [UIImage imageNamed:@"jamil.png"];
//splashViewBg.contentMode = UIViewContentModeScaleAspectFill;
[window addSubview:splashViewBg];
splashView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 768, 1004)];
splashView.image = [UIImage imageNamed:@"jamil.png"];
//splashView.contentMode = UIViewContentModeScaleAspectFill;
splashView.alpha = 0.0f;
}
else
{
splashViewBg = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)];
splashViewBg.image = [UIImage imageNamed:@"defualt.png"];
//splashViewBg.contentMode = UIViewContentModeScaleAspectFill;
[window addSubview:splashViewBg];
splashView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)];
splashView.image = [UIImage imageNamed:@"defualt.png"];
//splashView.contentMode = UIViewContentModeScaleAspectFill;
splashView.alpha = 0.0f;
}
[UIView beginAnimations:@"show" context:NULL];
[UIView setAnimationDuration:1.0f];
[UIView setAnimationCurve:UIViewAnimationCurveLinear];
[UIView setAnimationDelegate:self];
splashView.alpha = 1.0f;
[UIView commitAnimations];
[self performSelector:@selector(removeSplash) withObject:nil afterDelay:2.0];
[self performSelector:@selector(removeSplashBg) withObject:nil afterDelay:3.5];
return YES;
}
- (void) removeSplash {
[UIView beginAnimations:@"hide" context:NULL];
[UIView setAnimationDuration:1.0f];
[UIView setAnimationCurve:UIViewAnimationCurveLinear];
[UIView setAnimationDelegate:self];
splashView.alpha = 0.0f;
[UIView commitAnimations];
}
- (void) removeSplashBg {
[splashView removeFromSuperview];
[splashViewBg removeFromSuperview];
}
【问题讨论】:
-
您是否尝试过调试,无论条件是否为真?因为似乎它总是会去别的地方。
-
@rishi 是的,我在使用 ipad 时使用断点,我的控件运行 if 部分。
-
图片是否存在,是否已添加到您的项目中,名称是否正确?在断点之后检查图像是否有值。这是最有可能出错的地方。
-
你见过这个吗? stackoverflow.com/a/2634942/1344459希望对你有所帮助。
-
@jrturton 图像存在,它也获得了价值,这就是为什么我是伤员?我仔细检查了你提到的每一件事,但仍然没有得到 ipad 的图像。
标签: iphone ios ipad splash-screen beginanimations