How to suppress system UI toasts?

[tskrusr]

I created a toast intercept profile with AutoNotification to intercept toasts for the text: "Wireless charging paused."

I can confirm that the toast is being intercepted by AutoNotification by using a beep for the task.

Using an AutoNotification cancel task with the same text that I used in the toast intercept profile does not prevent the intercepted toast from being displayed. 

Neither can I block them using the block action.

I believe the toasts are being produced by the System UI component.

Samsung S21 Android 12

Any thoughts?

[João Dias]

Hi. Unfortunately there's no way to do that other than simply blocking notifications for the app that posts those toasts but I don't think that's possible for the system toasts, sorry :(

Thank you for your contact.

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João Dias

[tskrusr]

Thanks for the response!

This is how I solved the problem of selectively suppressing (Samsung S21 OneUI) the System UI toast "Wireless Charging Paused," while passing through all other toasts from System UI, for future reference:

Any way to suppress constant "wireless charging paused" toasts?  tasker (reddit.com)

TL;DR:   The solution was a little indirect, but it works.  (1) Block display of all System UI toasts using ADB command; (2) Use AutoNotification to intercept the blocked System UI toasts since Tasker can still see them even though they are no longer being displayed on the screen; and (3) display them on the screen using AutoTools if they do not match "Wireless Charing Paused." 

[João Dias]

Nice! :) Great solution, thanks for sharing!

[Soudane GMTA]

I've been looking for a way to selectively suppress toasts, and I just saw this message.

What is the ADB command mentioned in Step (1) for blocking the display of all System UI toasts?

Thank you very much.

[tskrusr]

Maybe try:

appops set com.android.systemui TOAST_WINDOW deny

[Soudane GMTA]

On Friday, January 20, 2023 at 4:19:00 PM UTC-5 tskrusr wrote:

Maybe try:

appops set com.android.systemui TOAST_WINDOW deny

Yes, that works! Thank you very much.

 

[Soudane GMTA]

A related question:  in order for AutoNotification to respond to toasts, Accessibility->AutoNotification Toast Intercept needs to be enabled. I can manually enable it, but it doesn't remain set.

Is there a way to keep Accessibility->AutoNotification Toast Intercept turned on, or to perhaps detect when it gets turned off and then re-enable it?

[Soudane GMTA]

Oh, I found it:

Tasker Preferences->MONITOR->KEEP ACCESSIBILITY RUNNING and select the AutoNotification - AutoNotification Toast Intercept

checkbox.