Hide a secure view completely in MediaProjection - android

Question

I'm creating a screen recorder app using the MediaProjection API. In my app, I'm showing the stop button as a small overlay window. I've kept this view as secure so that it doesn't come up in the final recorded video.

This view doesn't come up in the final video, but the final output is itself a black area in place of the original view.

Is it any way possible to get the final video output without this black area?

score 2 · Accepted Answer · answered Dec 08 '16 at 03:04

2

No way to do that currently unless you have System permission.

answered Dec 08 '16 at 03:04

reker

2,063
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How to do that even in case of System permissions? – omerjerk Dec 09 '16 at 05:08
See `frameworks/base/services/java/com/android/server/display/OverlayDisplayAdapter.java` and related code – reker Dec 09 '16 at 08:43
@omerjerk I want to do the same thing. Could you find a way to do it? – mnagy Jan 12 '17 at 09:07
There's no way without root at least. And I haven't tried what @reker suggested yet. – omerjerk Jan 12 '17 at 09:23
@reker, could edit your answer with a code example please? I not understood > "`See frameworks/base/services/java/com/android/server/display/OverlayDisplayAdapter.java and related code`". – Jul 30 '21 at 12:13
@omerjerk, you already tried this suggestion? – Jul 30 '21 at 12:15
@Coringa No, why? – reker Aug 09 '21 at 14:26

score 1 · Answer 2 · answered Mar 26 '22 at 06:02

1

I found a link related to hiding the overlay when requesting mediaProjection but the problem is app needs to be a system app and require a system permission android.permission.ACCESS_SURFACE_FLINGER and flag PRIVATE_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS not seems to be available to application developers. Have a look on this page to see if you can get anywhere. https://review.lineageos.org/c/LineageOS/android_frameworks_base/+/239014/2

answered Mar 26 '22 at 06:02

Nishain de Silva

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Or [**PRIVATE_FLAG_IS_ROUNDED_CORNERS_OVERLAY**](https://blog.xzr.moe/archives/136/). [Eg](https://gerrit.pixelexperience.org/plugins/gitiles/frameworks_base/+/017adb2dfb0f0147a5f7bf746a62f66f1d290fc3/packages/SystemUI/src/com/android/systemui/ScreenDecorations.java#239) – FLASHCODER Jan 11 '23 at 18:10

Hide a secure view completely in MediaProjection - android

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