CODEWITHSUNDEEP
javaandroidandroid-camera2autofocus
MoonWolf
MoonWolf

Reputation: 91

Autofocus in Samsung S8+

A wrote an application using a camera (Camera2) some time ago. And it worked with Samsung S5 (Android 6). But with S8+ (Android 8) camera doesn't focus anymore. It's going from CONTROL_AF_STATE_INACTIVE to CONTROL_AF_STATE_ACTIVE_SCAN to CONTROL_AF_STATE_FOCUSED_LOCKED (and then cycles through last two states) but the camera doesn't focus.

But when for the first time I postpone autofocus start (for example for 1 - 2 seconds after opening camera device) camera focuses - but only this time. And then it backs to cycling through these states without focusing.

The only thing that helps is reopening camera device but it's unacceptable because of delay.

I was trying to use CONTROL_AF_MODE_CONTINUOUS_PICTURE instead of CONTROL_AF_MODE_MACRO and this works for S8 but doesn't work for S5 :/

Does anybody have an issue like this? I'll try to prepare SSCE but maybe somebody knows what to do?

Upvotes: 3

Views: 503

Answers (1)

Martin Zeitler
Martin Zeitler

Reputation: 76639

this is a know glitch ...the Samsung forums have a possible solution: https://us.community.samsung.com/t5/Galaxy-S8-Questions-and-Answers/Camera-Not-Focusing-and-Blurry-Photos/td-p/103058 - which appears to be a manufacturing / mechanical issue.

tapping the back might loosen the stuck lens (eg. while it switches the modes back and forth). I'd still check for the occasion, that it may still behave alike that when running on some other S8+ device. it's not exactly what one would expect from a brand-new smartphone, but there seems to be too little precision at the lens clearance. maybe try to RMA that device?

Upvotes: 1

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