iphone开发必知点之－－清除和设置桌面提示泡泡计数

当app重新打开或切换到前台时，在app委托applicationWillEnterForeground:方法里实现

清除泡泡计数

- (void)applicationWillEnterForeground:(UIApplication *)application
{
    // clear badage
    [[UIApplication sharedApplication] setApplicationIconBadgeNumber:0];
}

在app被激活时，设置泡泡计数

- (void)applicationDidBecomeActive:(UIApplication *)application
{
　　NSInteger testBadgeNum = 10;

　　[[UIApplication sharedApplication] setApplicationIconBadgeNumber:testBadgeNum]; 

}