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UIApplication 常用方法

时间:2015-12-29 19:08:57      阅读:162      评论:0      收藏:0      [点我收藏+]

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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"]];

 

UIApplication 常用方法

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原文地址:http://www.cnblogs.com/guangleijia/p/5086691.html

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