How to achieve the zoom effect of images in Java? (with code)

The content of this article is about how to achieve the zoom effect of images in Java? (Attached is the code), which has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

The example introduced in this article was tested on an Android phone.

Let’s take a look at the effect first. You can see that this developed Android application has three buttons: Zoom In to reduce the picture, Zoom Out to enlarge the picture and Save.

Initial page:

You can move the picture freely in the left border, and the debug screen below the picture will display detailed pictures. Matrix information:

After clicking the Save button, an image file Snapshot will be created based on the latest status of the image on the left and displayed in the ImageView control on the right Inside:

##Click the Zoom in button to zoom out the picture:

##Click Zoom out to enlarge the picture:

The complete code of this Android application developed in Java: https://github.com/i042416 /im...

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