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  • UIApplicationsharedApplication的常用使用方法

    下面是这个类的一些功能:
    1.设置icon上的数字图标

        //设置主界面icon上的数字图标,在2.0中引进, 缺省为0

        [UIApplicationsharedApplication].applicationIconBadgeNumber = 4;
    2.设置摇动手势的时候,是否支持redo,undo操作

        //摇动手势,是否支持redo undo操作。

       //3.0以后引进,缺省YES


        [UIApplicationsharedApplication].applicationSupportsShakeToEdit =YES;


    3.判断程序运行状态

        //判断程序运行状态,在2.0以后引入

        /*

         UIApplicationStateActive,

         UIApplicationStateInactive,

         UIApplicationStateBackground

         */

       if([UIApplicationsharedApplication].applicationState ==UIApplicationStateInactive){

            NSLog(@"程序在运行状态");

        }
    4.阻止屏幕变暗进入休眠状态

        //阻止屏幕变暗,慎重使用,缺省为no 2.0

        [UIApplicationsharedApplication].idleTimerDisabled =YES;

    (慎重使用本功能,因为非常耗电)
    5.显示联网状态

        //显示联网标记 2.0
        [UIApplicationsharedApplication].networkActivityIndicatorVisible =YES;


    6.在map上显示一个地址

       NSString* addressText =@"1 Infinite Loop, Cupertino, CA 95014";

       // URL encode the spaces

        addressText =  [addressTextstringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding];

       NSString* urlText = [NSStringstringWithFormat:@"http://maps.google.com/maps?q=%@", addressText];

        [[UIApplicationsharedApplication]openURL:[NSURLURLWithString:urlText]];


    7.发送电子邮件

       NSString *recipients =@"mailto:first@example.com?cc=second@example.com,third@example.com&subject=Hello from California!";

       NSString *body =@"&body=It is raining in sunny California!";

        NSString *email = [NSStringstringWithFormat:@"%@%@", recipients, body];

        email = [emailstringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

        [[UIApplicationsharedApplication]openURL:[NSURLURLWithString:email]];
    8.打电话到一个号码

        // Call Google 411
        [[UIApplicationsharedApplication]openURL:[NSURLURLWithString:@"tel://8004664411"]];


    9.发送短信

        // Text to Google SMS
        [[UIApplicationsharedApplication]openURL:[NSURLURLWithString:@"sms://466453"]];


    10.打开一个网址

       // Lanuch any iPhone developers fav site
        [[UIApplicationsharedApplication]openURL:[NSURLURLWithString:@"http://itunesconnect.apple.com"]];

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  • 原文地址:https://www.cnblogs.com/riskyer/p/3290096.html
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