1,在plist檔案中:添加View controller-based status bar appearance 這個key,并将其值設定為NO,
2,在appDelegate中:
if (IOS7) {
[application setStatusBarStyle:UIStatusBarStyleLightContent];//黑體白字
[application setStatusBarStyle:UIStatusBarStyleDefault];//黑體黑字
// [application setStatusBarHidden:YES];//隐藏狀态欄
}