我正在教自己如何在Android上使用Phonegap通知。虽然显示通知似乎是一个相当简单的过程
public void triggerTestNotification(String tag, int id,Context ctxt)
{
Intent notificationIntent = new Intent(context, PallActivity.class);
notificationIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
Intent.FLAG_ACTIVITY_CLEAR_TOP);
notificationIntent.setAction(Intent.ACTION_MAIN);
notificationIntent.addCategory(Intent.CATEGORY_LAUNCHER);
PendingIntent contentIntent = PendingIntent.getActivity(ctxt, 0,
notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
Notification not = new Notification.Builder(ctxt)
.setContentTitle("Title").setContentText("Title")
.setTicker("Tick tock")
.setAutoCancel(true)
.setContentIntent(contentIntent)
.setSmallIcon(ctxt.getApplicationInfo().icon).build();
NotificationManager notificationManager = (NotificationManager)
ctxt.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(tag, id, not);
}
我发现的更难的是以下
此时应用程序应该回到前台。我以为我的意图代码
public class PallActivity extends Activity
{
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
finish();
forceMainActivityReload();
}
private void forceMainActivityReload()
{
PackageManager pm = getPackageManager();
Intent launchIntent =
pm.getLaunchIntentForPackage(getApplicationContext().getPackageName());
startActivity(launchIntent);
}
@Override
protected void onResume()
{
super.onResume();
final NotificationManager notificationManager = (NotificationManager)
this.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.cancelAll();
}
}
会解决这个问题,但它什么都不做。显然,我在这里遇到了一些错误 - 也许是在Intent标志中。对于任何能够让我走上正轨的人,我都非常感激。
答案 0 :(得分:2)
从您的oncreate中删除finish();
,它将在您继续操作之前调用完成。
而不是启动PallActivity,似乎,您打算开始第二个活动,或者至少将PallActivity视为第二个活动。你不需要在forceMainActivityReload();
内启动它。我将开始您希望从通知意图开始的活动,而不是使其更复杂和混淆问题。
notification.flags = Notification.FLAG_ONGOING_EVENT | Notification.FLAG_NO_CLEAR;
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
确保您使用的上下文是:
Context context = getApplicationContext();
并且,如评论中所述,从通知中删除这些:
notificationIntent.setAction(Intent.ACTION_MAIN);
notificationIntent.addCategory(Intent.CATEGORY_LAUNCHER);
如果需要,这里有更多细节:
Resume an activity when clicked on a notification
Android: How to resume an App from a Notification?
resuming an activity from a notification
Intent to resume a previously paused activity (Called from a Notification)
Android: resume app from previous position
How to make notification intent resume rather than making a new intent?