How to Programmatically Control the Dimensions of an ImageView in Android?

Programmatic Control of ImageView Dimensions

In Android development, it is necessary to dynamically manipulate UI elements programmatically. One common task is to control the dimensions of an ImageView.

Problem: Setting Image Size Programmatically

How can I set the width and height of an ImageView programmatically?

Solution 1: Use LayoutParams

The Android framework provides the LayoutParams class to manage the dimensions of views. To set the height programmatically:

imageView.getLayoutParams().height = 20;

Remember to call imageView.requestLayout() afterward to ensure the layout changes reflect the new height.

Solution 2: Use the View Class

Alternatively, you can use the View class directly to set the dimensions:

imageView.setMinimumHeight(20);
imageView.setMinimumWidth(20);

This approach requires a minimum width and height to be set, but allows for more flexibility in controlling the dimensions.

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