CODEWITHSUNDEEP
androidbuttondrawablescaling
MBober
MBober

Reputation: 1105

Scale drawableLeft in button with text

I have a button with text and a drawable on the left. Is there any way I can make that drawable scale to it's appropriate size (fill button's height) while keeping its aspect ratio?

Relevant excerpt from my layout:

        <Button 
            android:text="@string/add_fav"
            android:id="@+id/event_fav_button"
            android:layout_width="match_parent"
            android:layout_height="40dp"
            android:drawableLeft="@drawable/star_yellow"/>

Upvotes: 6

Views: 7205

Answers (2)

yonojoy
yonojoy

Reputation: 5566

You can use a function made of following code in onCreate():

    //get left drawable
    Drawable drawable = btn.getCompoundDrawables()[0];
    int imgHeight = drawable.getIntrinsicHeight();
    int imgWidth = drawable.getIntrinsicWidth();
    //for dpToPixel look here: https://stackoverflow.com/a/6327095/2306907
    float scale = (float) (dpToPixel(40)) / imgHeight;
    Rect rect = drawable.getBounds();
    int newWidth = (int)(imgWidth * scale);
    int newHeight = (int)(imgHeight * scale);
    rect.left = rect.left + (int)(0.5 * (imgWidth - newWidth)); 
    rect.top = rect.top + (int)(0.5 * (imgHeight - newHeight));
    rect.right = rect.left + newWidth;
    rect.bottom = rect.top + newHeight;
    drawable.setBounds(rect);

or have a look at this answer, which tries to give an "universal" solution.

Upvotes: 0

mainu
mainu

Reputation: 625

Can U create a button (containing all) like that in graphics.

Or U can try with this>> 1. Take a Layout(Relative or Linear) with width and height same as your button size. 2. Now put the image view and text view within that. 3. Make layout clickable..

Upvotes: 0

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