MainActivity　base.OnCreate() crush

Question

MainActivity　base.OnCreate() crush

水元翼 0

The app is running on MAUI. When the app is in the background, the movement differs between the task being turned off and the state where it is not. If the task is in the background and the task is turned off, when the push notification comes, when the notification is pressed, it will transition to the app, but if the task is not turned off in the background, it will crash before transitioning to the app when the notification is pressed. The error is Handler is not set on Element, and the error is in the base. It's happening in OnCreate(bundle). The cause is unknown. Help me.

Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 50,166 Reputation points Microsoft External Staff

2024-09-02T01:18:33.01+00:00
For further investigation, could you please provide the following information?

The Maui version and Android API level.

Could you please provide a minimal code snippet or procedure that reproduces this issue?

According to your description, the program crashes when you click on the notification while running. This may be due to the fact that the PendingIntent is not set. Did you follow Starting an activity from a notification to set up the PendingIntent?

Your prompt reply will be highly appreciated.
水元翼 0 Reputation points

2024-09-02T04:24:00.0033333+00:00

MAUI version : net8.0
Android API level : level 32
Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 50,166 Reputation points Microsoft External Staff

2024-09-02T08:06:42.8633333+00:00

Thanks for your feedback.

Could you please provide details on how you implemented the notification feature to reproduce the issue and troubleshoot the cause?

水元翼 0

Has there ever been an event where a Handler is not set on Element error occurred in the base.Create part of MainActivity?
The steps are what I talked about before.

Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 50,166 Reputation points Microsoft External Staff

2024-09-03T02:48:45.2966667+00:00

Thanks for your feedback.

Could you please provide a log of the program crash and specific error messages to troubleshoot the cause?

Your answer

Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 50,166 Reputation points Microsoft External Staff

2024-09-02T01:18:33.01+00:00

For further investigation, could you please provide the following information?

The Maui version and Android API level.

Could you please provide a minimal code snippet or procedure that reproduces this issue?

According to your description, the program crashes when you click on the notification while running. This may be due to the fact that the PendingIntent is not set. Did you follow Starting an activity from a notification to set up the PendingIntent?

Your prompt reply will be highly appreciated.
水元翼 0 Reputation points

2024-09-02T04:24:00.0033333+00:00

MAUI version : net8.0
Android API level : level 32
Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 50,166 Reputation points Microsoft External Staff

2024-09-02T08:06:42.8633333+00:00

Thanks for your feedback.

Could you please provide details on how you implemented the notification feature to reproduce the issue and troubleshoot the cause?
水元翼 0 Reputation points

2024-09-02T08:48:28.8833333+00:00

Has there ever been an event where a Handler is not set on Element error occurred in the base.Create part of MainActivity? The steps are what I talked about before.
Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 50,166 Reputation points Microsoft External Staff

2024-09-03T02:48:45.2966667+00:00

Thanks for your feedback.

Could you please provide a log of the program crash and specific error messages to troubleshoot the cause?

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MainActivity base.OnCreate() crush