一个小的封装test用的---判断iphone5 和导航栏封装。

@implementation ViewControllerFactory
#pragma mark ====== 适配iphone5公用的方法 ======
+(id)createViewControllerByControllerName:(NSString*) controllerName {
    if (controllerName == nil || [controllerName isEqualToString:@""]) {
        return nil;
    }
    NSString *controllerXibName = nil;
    if (isIPhone5) {
        controllerXibName = [NSString stringWithFormat:@"%@_iphone5",controllerName];
    }else {
        controllerXibName = controllerName;
    }
    Class class = NSClassFromString(controllerName);
   return  [[[class alloc] initWithNibName:controllerXibName bundle:nil] autorelease];
}
#pragma mark ====== 导航栏公用的方法 ======
+(void)initNavigationbar:(UIViewController *)tempViewController centerName:(NSString *)centerName rightButtonName:(NSString *)rightButtonName leftImage:(NSString *)leftImage rightImage:(NSString *)rightImage{
    //自定义返回按钮。
    UIButton *tempButton = [UIButton buttonWithType:UIButtonTypeCustom];
    [tempButton setBackgroundImage:[UIImage imageNamed:leftImage] forState:UIControlStateNormal];
    tempButton.frame=CGRectMake(0, 0, 50, 30);
    [tempButton addTarget:tempViewController action:@selector(backAction:) forControlEvents:UIControlEventTouchUpInside];
   
    UIBarButtonItem *leftButton = [[UIBarButtonItem alloc]initWithCustomView:tempButton];
    tempViewController.navigationItem.leftBarButtonItem=leftButton;
    [leftButton release];
    //解除绑定按钮。
    UIButton *tempButton1 = [UIButton buttonWithType:UIButtonTypeCustom];
    [tempButton1 setTitle:rightButtonName forState:UIControlStateNormal];
    [tempButton1 setBackgroundImage:[UIImage imageNamed:rightImage] forState:UIControlStateNormal];
    tempButton1.frame=CGRectMake(0, 0, 80, 30);
    [tempButton1 addTarget:tempViewController action:@selector(rightAction:) forControlEvents:UIControlEventTouchUpInside];
    UIBarButtonItem *rightButton = [[UIBarButtonItem alloc]initWithCustomView:tempButton1];
    tempViewController.navigationItem.rightBarButtonItem=rightButton;
    [rightButton release];
    //显示导航栏。
    [UIView animateWithDuration:0.4 animations:^{
        tempViewController.navigationController.navigationBarHidden = NO;
        tempViewController.navigationController.navigationBar.tintColor = [UIColor blackColor];
        tempViewController.navigationItem.title=centerName;
    }];
}