public static void triggerTestNotification(Context ctx,String tag,int id) {
Notification not = new NotificationCompat.Builder(ctx)
.setContentTitle("Title").setContentText("Text")
.setAutoCancel(true) // cancel on click
.setSmallIcon(R.drawable.ic_launcher).build();
NotificationManager notificationManager = (NotificationManager) ctx
.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(tag,id,not);
}
在我的主要活动的onCreate()中产生：
11-17 15:58:46.198: E/AndroidRuntime(1507): FATAL EXCEPTION: main
11-17 15:58:46.198: E/AndroidRuntime(1507): java.lang.RuntimeException: Unable to start activity ComponentInfo{gr.uoa.di.monitoring.android/gr.uoa.di.monitoring.android.activities.MainActivity}: java.lang.IllegalArgumentException: contentIntent required: pkg=gr.uoa.di.monitoring.Android id=0 notification=Notification(vibrate=null,sound=null,defaults=0x0,flags=0x10)
//...
11-17 15:58:46.198: E/AndroidRuntime(1507): Caused by: java.lang.IllegalArgumentException: contentIntent required: pkg=gr.uoa.di.monitoring.Android id=0 notification=Notification(vibrate=null,flags=0x10)
11-17 15:58:46.198: E/AndroidRuntime(1507): at android.os.Parcel.readException(Parcel.java:1326)
11-17 15:58:46.198: E/AndroidRuntime(1507): at android.os.Parcel.readException(Parcel.java:1276)
11-17 15:58:46.198: E/AndroidRuntime(1507): at android.app.INotificationManager$Stub$Proxy.enqueueNotificationWithTag(INotificationManager.java:274)
11-17 15:58:46.198: E/AndroidRuntime(1507): at android.app.NotificationManager.notify(NotificationManager.java:133)
11-17 15:58:46.198: E/AndroidRuntime(1507): at gr.uoa.di.monitoring.android.C.triggerTestNotification(C.java:200)
11-17 15:58:46.198: E/AndroidRuntime(1507): at gr.uoa.di.monitoring.android.activities.MainActivity.onCreate(MainActivity.java:44)
11-17 15:58:46.198: E/AndroidRuntime(1507): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
11-17 15:58:46.198: E/AndroidRuntime(1507): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1722)
11-17 15:58:46.198: E/AndroidRuntime(1507): ... 11 more
注意需要contentIntent.
required notification contents@H_403_15@
A Notification object must contain the following:
A small icon,set by setSmallIcon()
A title,set by setContentTitle()
Detail text,set by setContentText()
Optional notification contents and settings@H_403_15@
All other notification settings and contents are optional. To learn more about them,see the reference documentation for NotificationCompat.Builder.
该意见反映在various SO answers中,结果为SO questions(和another之一).
解决方法：
final Intent emptyIntent = new Intent(); PendingIntent pi = PendingIntent.getActivity(ctx,NOT_USED,emptyIntent,PendingIntent.FLAG_UPDATE_CURRENT); //... .setContentIntent(pi).build;
但这真的需要吗？这种情况是否是另一个Android docs的bug？它依赖于API吗？
注意我的目标SDK是17并在2.3.7手机上运行
解决方法
这也反映在Android源中. NotificationManagerService在显示通知之前处理通知的检查.
在Gingerbread中,作为enqueueNotificationInternal()方法的一部分,它具有以下检查：
if (notification.icon != 0) {
if (notification.contentView == null) {
throw new IllegalArgumentException("contentView required: pkg=" + pkg
+ " id=" + id + " notification=" + notification);
}
if (notification.contentIntent == null) {
throw new IllegalArgumentException("contentIntent required: pkg=" + pkg
+ " id=" + id + " notification=" + notification);
}
}
在以后的Android版本中,例如Ice Cream Sandwich,该检查已经消失：
if (notification.icon != 0) {
if (notification.contentView == null) {
throw new IllegalArgumentException("contentView required: pkg=" + pkg
+ " id=" + id + " notification=" + notification);
}
}
因此,Gingerbread及以下需要contentIntent.
