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How to enlarge a high resolution bitmap?

I am trying to implement an image viewer using TouchImageView .

  • TouchImageView is placed in a fragment.
  • And I set a large image (2500x3000) to this TouchImageView , (loading using inSampleSize = 8).
  • Then I pinch the image on an enlarged scale, it is displayed with low resolution. (This is not surprising.)

However, I want to display a high resolution image when scaling, for example, the Android Gallery application. How to do it?

Thanks in advance.

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3 answers

I was unable to find an ImageView implementation that supports scaling of large images, so I created one that splits the image and shows the minimum number of tiles with high resolution, replacing them when scaling and panning. Hope he does what you need.

https://github.com/davemorrissey/subsampling-scale-image-view

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You can try the following: AndroidBigImage

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http://www.androidhub4you.com/2013/05/zoom-image-demo-in-android-zoom-image.html

Hope this helps you find the answer.

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