[英]Preparing a Universal App for iPhone SDK 3.2
I am working on a universal app, I used UISplitViewController in doing iPad application. 我正在开发通用应用程序,在做iPad应用程序时使用了UISplitViewController。 I followed the Universal app guidelines ie, i keep base SDK as 3.2, iPhone Target OS ad iPhone OS 3.1.3, Taget device as iPhone/iPad.
我遵循通用应用指南,即我将基本SDK保持为3.2,将iPhone Target OS和iPhone OS 3.1.3保持不变,将Taget设备保持为iPhone / iPad。 And i used "Adding Runtime Checks for Newer Symbols" for UISplitViewController and UIPopOverController.
我为UISplitViewController和UIPopOverController使用了“为新符号添加运行时检查”。
Class splitVCClass = NSClassFromString(@"UISplitViewController");
if (splitVC)
{
UISplitViewController* mySplitViewController = [[splitVCClass alloc] init];
// Configure the split view controller.
}
I used this in .m files I declared UIPopOverController in .h files also 我在.m文件中使用了此文件,也在.h文件中声明了UIPopOverController
"dyld: Symbol not found: _OBJC_CLASS_$_UIPopoverController Referenced from: /var/mobile/Applications/9E0CE75F-D2A9-4132-AE56-1780928BCF21/UniversalTasks.app/UniversalTasks Expected in: /System/Library/Frameworks/UIKit.framework/UIKit in /var/mobile/Applications/9E0CE75F-D2A9-4132-AE56-1780928BCF21/UniversalTasks.app/UniversalTasks"
“ dyld:未找到符号:_OBJC_CLASS _ $ _ UIPopoverController引用自:/var/mobile/Applications/9E0CE75F-D2A9-4132-AE56-1780928BCF21/UniversalTasks.app/UniversalTasks预期在:/System/Library/Frameworks/UIKit.framework/UIKit在/var/mobile/Applications/9E0CE75F-D2A9-4132-AE56-1780928BCF21/UniversalTasks.app/UniversalTasks“
What i have to do can any one help me out 我必须做的事可以帮助我
I am not entirely sure, but maybe this can help: 我不确定,但这也许可以帮助您:
Class classPopoverController = NSClassFromString(@"UIPopoverController");
if (classPopoverController)
{
id popover = [[classPopoverController alloc] initWithContentViewController:imgPicker];
[popover presentPopoverFromRect:CGRectMake(0, 0, popoverParent.frame.size.width, 80)
inView:popoverParent permittedArrowDirections:(1UL << 0) animated:YES];
}
Basically you need to replace "UIPopoverController *" with "id", because this symbol is not defined in earlier SDK. 基本上,您需要将“ UIPopoverController *”替换为“ id”,因为此符号未在早期的SDK中定义。
The correct answer is here: Symbol not found: _OBJC_CLASS_$_UIPopoverController 正确的答案在这里: 找不到符号:_OBJC_CLASS _ $ _ UIPopoverController
First you must take the original poster's implicit instructions: move all your iPad-only code (popovers etc) into iPad subclasses etc. Then follow the final answer. 首先,您必须遵循原始海报的隐含说明:将所有仅iPad的代码(弹出窗口等)移到iPad子类等中,然后遵循最终答案。
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