In Android, how to place image at center on a button without stretching? -

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in android layout file, have button. , want present image button without text. problem have is, image stretched cover whole button area. instead of stretching, i'd have button placed @ center of button without distortion image.

<button     android:layout_width="38dp"     android:layout_height="match_parent"     android:background="@drawable/icon_more"     android:id="@+id/button"     android:layout_alignparenttop="true"     android:layout_alignparentend="true" />

right now, looks this:

enter image description here

it's horizontally stretched, not want.

using imagebutton choice you. can try:

    <imagebutton         android:layout_width="38dp"         android:layout_height="match_parent"         android:src="@drawable/icon_more"         android:scaletype="centerinside"         />

flexibly combining attributes layout_width, layout_height , scaletype helps ui


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