我在我的新应用程序中启动了一个服务。该服务是前台服务,并带有通知。当在AVD 2.1 API Level 7上运行时,一切正常。但当在运行Gingerbread的三星Galaxy Tab上运行时,服务会启动(图标和应用程序名称出现在通知区域的顶部),但几秒钟后,服务就消失了。我能看到日志中与我的应用相关的最后一个条目是我的Log.d("Taglines","Returning with " + START_STICKY),它紧接着我的Service的onStartCommand覆盖中的"return START_STICKY ;",如下所示:
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
int rc ;
Log.d("Taglines","onStartCommand()");
Toast.makeText(this, "Starting service TagsManager", Toast.LENGTH_SHORT).show();
Log.d("Taglines","Calling super.onStartCommand()");
rc = super.onStartCommand(intent,flags,startId);
Log.d("Taglines","super.onStartCommand return code was " + rc);
createNotification(INITIAL_NOTIFICATION_TEXT);
Log.d("Taglines","Returning with " + START_STICKY);
return START_STICKY ;
}
通知的设置方式如下所示:
void createNotification(String text) {
Log.d("Taglines","createNotification called");
if (mNotificationManager == null) {
// Get a reference to the Notification Manager
String ns = Context.NOTIFICATION_SERVICE;
mNotificationManager = (NotificationManager) getSystemService(ns);
Log.d("Taglines","Obtained reference to Notification Manager");
}
// Instantiate the Notification
int icon = R.drawable.ic_notification;
CharSequence tickerText = "Taglines";
long when = System.currentTimeMillis();
notification = new Notification(icon, tickerText, when);
// Define Notification's expanded message and intent
Log.d("Taglines","createNotificacion() .. getApplicationContext");
context = getApplicationContext();
contentText = text;
// notificationIntent = new Intent(this, TagsOverview.class);
notificationIntent = new Intent(this, TagsServiceMenu.class);
contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);
// Pass the Notification to the NotificationManager:
Log.d("Taglines","createNotificacion() ... passing notification");
mNotificationManager.notify(NOTIFICATION_ID, notification);
Log.d("Taglines","Starting foreground");
startForeground(NOTIFICATION_ID, notification);
Log.d("Taglines","Started");
}
当服务启动时,以下是“adb logcat”的结果:
D/Taglines(21863): Starting service
D/Taglines(21863): TagsManager(nullary) completed
D/Taglines(21863): onStartCommand()
D/Taglines(21863): Calling super.onStartCommand()
D/Taglines(21863): super.onStartCommand eturn code was 2
D/Taglines(21863): createNotification called
D/Taglines(21863): Obtained reference to Notification Manager
D/Taglines(21863): createNotificacion() .. getApplicationContext
D/Taglines(21863): createNotificacion() ... passing notification
D/Taglines(21863): Starting foreground
D/Taglines(21863): Started
D/Taglines(21863): Returning with 1
之后,没有什么特别的(来自PID 21863的任何东西都没有)。只是一堆:
D/KeyguardViewMediator( 302): setHidden false
D/KeyguardViewMediator( 302): setHidden false
D/KeyguardViewMediator( 302): setHidden false
D/KeyguardViewMediator( 302): setHidden false
D/KeyguardViewMediator( 302): setHidden false
W/InputManagerService( 302): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@40bc06e8
D/KeyguardViewMediator( 302): setHidden false
D/KeyguardViewMediator( 302): setHidden false
D/KeyguardViewMediator( 302): setHidden false
D/KeyguardViewMediator( 302): setHidden false
D/KeyguardViewMediator( 302): setHidden false
D/KeyguardViewMediator( 302): setHidden false
D/KeyguardViewMediator( 302): setHidden false
D/KeyguardViewMediator( 302): setHidden false
D/KeyguardViewMediator( 302): setHidden false
我认为在这种情况下不需要,但以下是 AndroidManifest.xml 的相关部分:
<service android:name=".TagsManager"
android:exported="false">
</service>
我哪里做错了?我还能提供什么其他信息吗?