Android Question BitmapAsync - what about rotated pictures

Alexander Stolte · Aug 3, 2020

Hello,

i have a problem, i see images from my native camera app are rotatet, how can i load the images with BitmapAsync with the right orientation?

Erel · Aug 4, 2020

It is not related to BitmapAsync.

It is related to the bitmaps storing the orientation setting in the EXIF attributes.
See this example: https://www.b4x.com/android/forum/threads/b4x-b4xpages-intent-based-camera.120721/#content

Alexander Stolte · Aug 4, 2020

The Problem is i need to load the image from the location to ini. the exif. Or is not the image loaded, but only the exif data, if i ini. the exif?

Erel · Aug 5, 2020

It doesn't load the image. It only reads the metadata.

Best option if worried about performance is to rotate the ImageView instead of the bitmap.

Alexander Stolte · Aug 6, 2020

Erel said:
It doesn't load the image. It only reads the metadata.

I'll check it. Thanks.

Erel said:
Best option if worried about performance is to rotate the ImageView instead of the bitmap.

without knowing if the image is distorted?

Erel · Aug 7, 2020

Rotate the ImageView instead of rotating the bitmap. While I haven't tested it myself, I expect it to be faster. This is only relevant if you are loading many images.

Android Question BitmapAsync - what about rotated pictures

Alexander Stolte

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Erel

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Alexander Stolte

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Erel

B4X founder

Alexander Stolte

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Erel

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