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Editorial Team
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Asked: 2026-06-15T23:45:03+00:00

Context I have an overlay window ( TYPE_SYSTEM_ALERT ) which is full screen. The

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Context

I have an overlay window (TYPE_SYSTEM_ALERT) which is full screen.

The flag FLAG_NOT_TOUCHABLE is enabled so that underlying window gets the touch events.

The flag FLAG_WATCH_OUTSIDE_TOUCH is also enabled so that my overlay gets an ACTION_OUTSIDE event when a touch event happens.

Goal

If a touch event happens in a specific area of the screen, I would like my overlay to become ‘touchable’ and receive all following touch events (move, up,…).

What I tried

I tried to remove the FLAG_NOT_TOUCHABLE when receiving the ACTION_OUTSIDE but I don’t receive the touch events until the current series of touch is over (i.e ACTION_UP event).

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1 Answer

  1. Editorial Team

    Well I finally ended up using 2 overlay windows:

    • a TYPE_SYSTEM_ALERT with wrap_content to catch touch events on the content
    • a TYPE_SYSTEM_OVERLAY with match_parent

    And I transfer my content view from one window to another when touch starts/ends.

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