12.18.02 UIApplication

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//

//  ViewController.m

//  12.18.02 UIApplication

//

//  Created by 张凯泽 on 15/12/18.

//  Copyright © 2015年 rytong_zkz. All rights reserved.

//

#import "ViewController.h"

@interface ViewController ()

- (IBAction)ClickTap;

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

//是否显示状态栏 YES为不显示

//-(BOOL)prefersStatusBarHidden

//{

//    return YES;

//}

//状态栏样式

-(UIStatusBarStyle)preferredStatusBarStyle

{

    return UIStatusBarStyleLightContent;//字体为白色

}

- (IBAction)ClickTap {

    UIApplication * app = [UIApplication sharedApplication];

    //1.bageValue

    float version = [[[UIDevice currentDevice] systemVersion] floatValue];

    if (version >= 8.0) {

        UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeBadge categories:nil];

        [[UIApplication sharedApplication] registerUserNotificationSettings:settings];

        app.applicationIconBadgeNumber=10;

    }else

    {

        app.applicationIconBadgeNumber=10;

    }

    //清除bageValue 使它等于app.applicationIconBadgeNumber=0

    //2.显示网络状态

    app.networkActivityIndicatorVisible = YES;

    //打电话

    //发邮件

    //3.状态栏 在配置文件里View controller-based status bar appearance设置为no

    //[app setStatusBarHidden:YES withAnimation:UIStatusBarAnimationFade];

    [app setStatusBarStyle:UIStatusBarStyleLightContent animated:YES];

   // app.statusBarStyle = UIStatusBarStyleDefault;

}

@end

12.18.02 UIApplication

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原文地址：http://www.cnblogs.com/zkzzkz/p/5057436.html