UIApplication sharedApplication 的常用使用方法

拼搏现实的明天。 2022-03-22 02:22 403阅读 0赞

//设置icon上的数字
        [UIApplicationsharedApplication].applicationIconBadgeNumber = 4;
    
    
    //设置摇动手势的时候，是否支持redo,undo操作
        [UIApplicationsharedApplication].applicationSupportsShakeToEdit =YES;
    
    
    //判断程序运行状态
        /*
         UIApplicationStateActive
         UIApplicationStateInactive
         UIApplicationStateBackground
         */
    
       if([UIApplicationsharedApplication].applicationState ==UIApplicationStateInactive){
            NSLog(@"程序在运行状态");
        }
        
    
    //阻止屏幕变暗进入休眠状态
        [UIApplicationsharedApplication].idleTimerDisabled =YES;
        
    
    //显示联网状态
        [UIApplicationsharedApplication].networkActivityIndicatorVisible =YES;
    
    
    //在map上显示一个地址，其实就是利用了openURL这个方法
    
       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]];
    
    
    //发送电子邮件，也是利用openURL
    
       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]];
        
    
    //打电话到一个号码，依然是利用openURL
    
        // Call Google 411
        [[UIApplicationsharedApplication]openURL:[NSURLURLWithString:@"tel://8004664411"]];
    
    
    //发送短信，万能的openURL啊
    
        // Text to Google SMS
        [[UIApplicationsharedApplication]openURL:[NSURLURLWithString:@"sms://466453"]];
    
    
    //打开一个网址，openURL的常规操作
    
       // Lanuch any iPhone developers fav site
        [[UIApplicationsharedApplication]openURL:[NSURLURLWithString:@"http://itunesconnect.apple.com"]];