问题描述
我试图让我的 Service
在前台运行.我尝试使用这个示例(请查找运行服务"部分在前台"),但 startForeground()
实际上并没有显示我的通知.并且不会抛出任何异常.为了让它显示出来,我需要使用 NotificationManager
像 here 解释.使用 NotificationManager
我的通知有效,但我不确定我的 Service
在对 startForeground()
进行无声"调用后是否处于前台.
I am trying to make my Service
running in foreground. I tried to use this example (please look for the section "Running a Service in the Foreground"), but startForeground()
does not actually show my notification. And no exceptions is thrown. To make it shown, I need to use NotificationManager
like here explained. With NotificationManager
my notification works, but i'm not sure that my Service
is foreground after this "silent" call to startForeground()
.
有什么问题?
编辑:我刚刚测试了这个示例应该演示 startForeground()
的项目,但它不起作用!我使用 API v7.0,我在模拟器和真实设备 (SE Xperia Neo) 上都对其进行了测试.不显示通知.
EDIT: I just tested this sample project that should demonstrate startForeground()
, but it does not work! I use API v7.0, I tested it both on emulator and real device (SE Xperia Neo). Notification does not appear.
EDIT2:如果我尝试调用 setForeground()
然后我收到一个警告 setForeground: ignoring old API call
.
EDIT2: if i try to call setForeground()
then i got a warning setForeground: ignoring old API call
.
我也尝试使用 startForegroundCompat()
如此处所述,但效果完全一样.我使用 ActivityManager.RunningServiceInfo
检查我的服务是否为前台,如 此处,我发现我的服务不是前台.
I also tried to use startForegroundCompat()
as described here, but effect is absolutelly the same. I check if my service is foreground using ActivityManager.RunningServiceInfo
as described here, and I see that my service is not foreground.
推荐答案
我刚刚注意到 startForeground()
不显示通知图标,如果 id
参数是设置为 0
...
I just noticed that startForeground()
doesn't show the notification icon if the id
parameter is set to 0
...
startForeground(0, notification); // Doesn't work...
startForeground(1, notification); // Works!!!
我希望它可以帮助坚持这一点的人.
I hope that it could help someone stuck on this.
这篇关于startForeground() 不显示我的通知的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!