ios status bar 字体颜色

1, if ([[[UIDevice currentDevice] systemVersion] floatValue] < 7.0) {

        [application setStatusBarStyle:UIStatusBarStyleDefault];

    } else {

        [application setStatusBarStyle:UIStatusBarStyleLightContent];

    }

2,info.plist 

View controller-based status bar appearance NO

原文：http://www.cnblogs.com/guligei/p/3944463.html