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下面是这个类的一些功能:
//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;
//摇动手势,是否支持redo undo操作。
//3.0以后引进,缺省YES
[UIApplicationsharedApplication].applicationSupportsShakeToEdit =YES;
//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");
}
//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。
//显示联网标记 2.0
[UIApplicationsharedApplication].networkActivityIndicatorVisible =YES;
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]];
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]];
// Call Google 411
[[UIApplicationsharedApplication]openURL:[NSURLURLWithString:@"tel://8004664411"]];
// Text to Google SMS
[[UIApplicationsharedApplication]openURL:[NSURLURLWithString:@"sms://466453"]];
// Lanuch any iPhone developers fav site
[[UIApplicationsharedApplication]openURL:[NSURLURLWithString:@"http://itunesconnect.apple.com"]];
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原文地址:http://www.cnblogs.com/wcLT/p/4659988.html