1，設置圖標右上角的提示數字

 UIapplication *app =[UIApplication sharedApplication];    app.applicationIconBadgeNumber = 10;

2，設置狀態欄樣式

    app.statusBarStyle = UIStatusBarAnimationSlide;

3，設置狀態欄的顯示和影藏

    app.statusBarHidden = NO;

4，顯示狀態欄上面網絡狀態的圈圈

    app.networkActivityIndicatorVisible = YES;