The examples described in this article have been tested on Android phones.
Let’s see how it works. You can see that the developed Android app has three buttons: Zoom In to Zoom In, Zoom Out to Zoom In and Save.
Initial page:
You can move the picture freely in the left border. The debug screen below the picture will display the detailed picture matrix information:
After clicking Save button, a Snapshot file will be created based on the latest status of the image on the left and displayed in the ImageView control on the right:
Click the Zoom in button to Zoom out the image:
Click Zoom Out to enlarge the image:
The full code of this Android application developed in Java: github.com/i042416/ima…
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