ios上多平臺開發(.m與.xib關聯)

1、創建一個xib文件，文件類型爲view

2 、選中xib，點擊File's Owner，設置custom class：(對應.m的文件名)

3、選中xib.點擊File's Owner->View,右擊設置view，關聯當前的view即可

if ([[UIDevicecurrentDevice] userInterfaceIdiom] ==UIUserInterfaceIdiomPhone) {

        self.viewController = [[[gnanViewControlleralloc] initWithNibName:@"gnanViewController_iPhone"bundle:nil]autorelease];

    }else {

        self.viewController = [[[gnanViewControlleralloc] initWithNibName:@"gnanViewController_iPad"bundle:nil]autorelease];

    }