UIWebView ne se redimensionne pas correctement lorsque l'orientation change?

J'ai ajouter une webview,un titleLabel et un coverflowView sur un viewcontroller est d'avis que ses sous-vues, je le veux changer de taille lorsque le changement d'orientation. J'ai changer la webview cadre de cette méthode:

 - (void)willRotateToInterfaceOrientation: (UIInterfaceOrientation)toInterfaceOrientation duration: (NSTimeInterval)duration 

son contenu n'a redimensionner lors de la rotation de l'iPad à partir de orientationLandscape à orientationPortrait ou de orientationPortrait à orientationLandscape si je démarrer l'application avec l'orientation portrait, mais c'est tellement étrange que son contenu ne marche pas redimensionner quand j'ai démarrer l'application avec l'orientation paysage...Mais le NSLog montre l'image a changé. Quant à la titleLabel et la coverflowView, ils redimensionner correctement. Je doute si c'est à cause de css?J'ai utiliser css pour contrôler le contenu de style en fonction de la hauteur et la largeur de webview.Est-ce quelqu'un pourrait m'aider à trouver la raison? le code est ci-dessous:

- (void)willRotateToInterfaceOrientation: (UIInterfaceOrientation)toInterfaceOrientation duration: (NSTimeInterval)duration {
double i = 0;
NSInteger  width=self.view.frame.size.width;
NSInteger  height=self.view.frame.size.height;
NSLog(@"view :%@",[self.view description]);
switch (toInterfaceOrientation){
case UIInterfaceOrientationPortrait:
{    
NSLog(@"rotate to Portrait");
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad){
self.docView.frame=CGRectMake(0, 50, width+20, height-70);
self.toolbar.frame=CGRectMake(0, 0,height , 50);
for (UIView * view in [toolbar subviews]) {
if ([view isKindOfClass:[UIButton class]] && view.tag==kBackButtonTag){
view.frame=CGRectMake(width-60, 6, 50, 36);
}else if([view isKindOfClass:[UIButton class]] && view.tag==kReloadButtonTag){
view.frame=CGRectMake(width-160, 6, 80,36 );
}
}
[coverflow setFrame:CGRectMake(0, 0 , width+20, height/2-50)];
[titleLabel setFrame:CGRectMake(width/2-40,height/2-100, 100, 20)];
if ([[[UIDevice currentDevice]model]isEqualToString:@"iPad"]) {
self.viewer.frame=CGRectMake(0, 0, 768, 1004);
}else{
self.viewer.frame=CGRectMake(0, 0, 320, 480);
}
}
i=0;
}break;
case UIInterfaceOrientationPortraitUpsideDown:
{
NSLog(@"rotate to PortraitUpsideDown");
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad){
self.docView.frame=CGRectMake(0, 50, width+20, height-70);
self.toolbar.frame=CGRectMake(0, 0,height , 50);
for (UIView * view in [toolbar subviews]) {
if ([view isKindOfClass:[UIButton class]] && view.tag==kBackButtonTag)  {
view.frame=CGRectMake(width-60, 6, 50, 36);
}else if([view isKindOfClass:[UIButton class]] && view.tag==kReloadButtonTag){
view.frame=CGRectMake(width-160, 6, 80,36 );
}
}
[coverflow setFrame:CGRectMake(0, 0 , width+20, height/2-50)];
[titleLabel setFrame:CGRectMake(width/2-40,height/2-100, 100, 20)];
if ([[[UIDevice currentDevice]model]isEqualToString:@"iPad"]) {
self.viewer.frame=CGRectMake(0, 0, 768, 1004);
}else{
self.viewer.frame=CGRectMake(0, 0, 320, 480);
}
}
i=180;
}   break;
case UIInterfaceOrientationLandscapeLeft:{
NSLog(@"rotate to LandscapeLeft");
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad){
//    self.coverflow.frame=CGRectMake(0, 0, height+20, width-20);
self.docView.frame=CGRectMake(0, 50, height+20, width-70);
self.toolbar.frame=CGRectMake(0, 0,height+20 , 50);
for (UIView * view in [toolbar subviews]) {
if ([view isKindOfClass:[UIButton class]] && view.tag==kBackButtonTag)  {
view.frame=CGRectMake(height-60, 6, 50, 36);
NSLog(@"button %@",[view description]);
}else if([view isKindOfClass:[UIButton class]] && view.tag==kReloadButtonTag){
view.frame=CGRectMake(height-160, 6, 80,36 );
}
}
[coverflow setFrame:CGRectMake(0, 0 , height+20, width/2-50)];
[titleLabel setFrame:CGRectMake(height/2-40,width/2-80, 100, 20)];
if ([[[UIDevice currentDevice]model]isEqualToString:@"iPad"]) {
self.viewer.frame=CGRectMake(0, 0, 1024, 748);
}else{
self.viewer.frame=CGRectMake(0, 0, 480, 320);
}
}
i = 90;
}break;
case UIInterfaceOrientationLandscapeRight:{
NSLog(@"rotate to LandscapeRight");
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad){
//   self.coverflow.frame=CGRectMake(0, 0, height+20, width-20);
self.docView.frame=CGRectMake(0, 50, height+20, width-70);
self.toolbar.frame=CGRectMake(0, 0,height+20 , 50);
for (UIView * view in [toolbar subviews]) {
if ([view isKindOfClass:[UIButton class]] && view.tag==kBackButtonTag)  {
view.frame=CGRectMake(height-60, 6, 50, 36);
}
else if([view isKindOfClass:[UIButton class]] && view.tag==kReloadButtonTag){
view.frame=CGRectMake(height-160, 6, 80,36 );
}
}
[coverflow setFrame:CGRectMake(0, 0 , height+20, width/2-50)];
[titleLabel setFrame:CGRectMake(height/2-40,width/2-80, 100, 20)];
if ([[[UIDevice currentDevice]model]isEqualToString:@"iPad"]) {
self.viewer.frame=CGRectMake(0, 0, 1024, 748);
}else{
self.viewer.frame=CGRectMake(0, 0, 480, 320);
}
}
i = -90;
}break;
}
//[webViewController willRotateToInterfaceOrientation:toInterfaceOrientation duration:duration];
//[self.view setNeedsDisplay];
//  NSLog(@"coverflowView :%@",[self.coverflow description]);
NSLog(@"webview :%@",[viewer description]);
[viewer stringByEvaluatingJavaScriptFromString:[NSString stringWithFormat:@"window.__defineGetter__('orientation',function(){return %f;});",i]];
[viewer stringByEvaluatingJavaScriptFromString:@"var e = document.createEvent('Events'); e.initEvent('orientationchange', true, false); document.dispatchEvent(e); "];    
}
- (void)viewDidLoad {
self.view.clipsToBounds=YES;
self.view.autoresizesSubviews=YES;
//self.view.autoresizingMask=UIViewAutoresizingNone;
viewer=[[UIWebView alloc]initWithFrame:self.view.bounds];
[self.view addSubview:viewer];
viewer.delegate=self;
viewer.scalesPageToFit=NO;
viewer.autoresizesSubviews=NO;
viewer.autoresizingMask=UIViewAutoresizingNone;
viewer.dataDetectorTypes=0;
//viewer.autoresizingMask=UIViewAutoresizingFlexibleWidth |UIViewAutoresizingFlexibleHeight;
NSLog(@"webView :%@",[viewer description]);
// [viewer setFrame:CGRectMake(0, self.view.bounds.size.height/2 , self.view.bounds.size.width, self.view.bounds.size.height/2)];
// [viewer setBounds:CGRectMake(0, self.view.bounds.size.height/2 , self.view.bounds.size.width, self.view.bounds.size.height/2)];
UIScrollView *scroller=[viewer.subviews objectAtIndex: 0];
if (scroller) {
scroller.alwaysBounceVertical=NO;
scroller.bounces=NO;
scroller.scrollEnabled=NO;   
}
[self viewHomePage];
//[self createCoverFlowView];
[self createPopView];
//[self setHomeButtonPosition]; 
//[self setSettingButtonPosition];
#if __IPHONE_OS_VERSION_MIN_REQUIRED > 30000
UILongPressGestureRecognizer* longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(handleLongPress:)];
[self.view addGestureRecognizer:longPress];
longPress.minimumPressDuration=2.0;
longPress.delegate = self;
longPress.cancelsTouchesInView = NO;
longPress.allowableMovement=20;
[longPress release];  
UITapGestureRecognizer* singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];
[self.view addGestureRecognizer:singleTap];
singleTap.delegate = self;
singleTap.cancelsTouchesInView = NO;
[singleTap release];  
#endif
//[viewer setOpaque:YES];      //透明
[super viewDidLoad];
}

source d'informationauteur user424714