Question

我正在开发一个项目，我在UIscrollview中添加了UIWebviews以显示描述。我这样做是因为我想添加滑动效果以移动到新的描述页面。现在，我想调整UIscrollview及其内容（即uiwebview），当方向改变时（即纵向到横向或反向）。

请给我任何示例代码或任何建议。

Answer 1

要调整webview的大小，您必须写： -

- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation
{
    webview.scrollView.contentSize = CGSizeMake(scrollView.frame.size.width * someValue1, 
                                        scrollView.frame.size.height * someValue2);
}

Answer 2

您可以将代码放在以下代码块中：

- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{
if ([self isPadPortrait]) {
    // Your code for Portrait
    // set frame here  
} else if ([self isPadLandscape]) {
   // Your code for Landscape
   // set frame here 
}

以下代码将负责方向更改：

- (BOOL)isPadPortrait
{

    return (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad
            && (self.interfaceOrientation == UIInterfaceOrientationPortrait
                || self.interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown));
}

- (BOOL)isPadLandscape
{

    return (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad
            && (self.interfaceOrientation == UIInterfaceOrientationLandscapeRight
                || self.interfaceOrientation == UIInterfaceOrientationLandscapeLeft));

}

Answer 3

您可以设置scrollView的autoresizingMask，并根据您的要求将此代码添加到.m文件中。

- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation
{
    scrollView.contentSize = CGSizeMake(scrollView.frame.size.width * someValue1, 
                                        scrollView.frame.size.height * someValue2);
}

Answer 4

当方向改变时

- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation duration:(NSTimeInterval)duration

{

// this delegate method will called if we set should auto orientation return yes;
when ever we changed orientation  so set frames.. 

}

例如

- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation duration:(NSTimeInterval)duration

{
    appDelegate.interface=interfaceOrientation;


    if (interfaceOrientation == UIInterfaceOrientationLandscapeLeft || interfaceOrientation == UIInterfaceOrientationLandscapeRight)

{

//  SET FRAMES FOR LANDSCAPE HERE       


}

    if (interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown || interfaceOrientation == UIInterfaceOrientationPortrait)

{ 
        //SET FRAMES FOR Portrait HERE              

}

}

Answer 5

以下是类似问题及其解决方案的链接： Scale image to fit screen on iPhone rotation

他们使用AutoresizingMasks和ContentModes的组合来同时使用ScrollView和ImageView，尽管我认为相同的解决方案适用于您的WebView。

如何调整uiscrollview及其内容，以改变iPhone的方向？

5 个答案: