How to set margin of ImageView using code, not xml

android margin imageview
Bruce Lee picture Bruce Lee · Aug 5, 2010 · Viewed 276.3k times · Source

I want to add an unknown number of ImageView views to my layout with margin. In XML, I can use layout_margin like this:

<ImageView android:layout_margin="5dip" android:src="@drawable/image" />

There is ImageView.setPadding(), but no ImageView.setMargin(). I think it's along the lines of ImageView.setLayoutParams(LayoutParams), but not sure what to feed into that.

Does anyone know?

Answer

Key picture Key · Aug 5, 2010

android.view.ViewGroup.MarginLayoutParams has a method setMargins(left, top, right, bottom). Direct subclasses are: FrameLayout.LayoutParams, LinearLayout.LayoutParams and RelativeLayout.LayoutParams.

Using e.g. LinearLayout:

LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp.setMargins(left, top, right, bottom);
imageView.setLayoutParams(lp);

MarginLayoutParams

This sets the margins in pixels. To scale it use

context.getResources().getDisplayMetrics().density

DisplayMetrics

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