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How to Programmatically Control ImageView Size at Runtime?

Patricia Arquette
Patricia ArquetteOriginal
2024-11-23 00:45:22398browse

How to Programmatically Control ImageView Size at Runtime?

Controlling ImageView Dimensions Programmatically

Setting the width and height of an ImageView at runtime requires a programmatic approach. To achieve this, we can use the following steps:

Setting the Height:

// Fetch the LayoutParams, which holds the dimensions of the View
LinearLayout.LayoutParams params = imageView.getLayoutParams();

// Set the height (in pixels)
params.height = 20;

// This step is crucial! After modifying the layout params, request a layout pass to refresh the view
imageView.requestLayout();

Important Note:

If you're modifying the ImageView's height after the layout has been drawn, using requestLayout() is essential to ensure that the changes are applied correctly.

Setting the Width:

Follow the same steps as above, but use the width property of the LinearLayout.LayoutParams object.

params.width = 40;

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