How to center icon and text in a android button with width set to “fill parent”

0 votes
asked Sep 3, 2010 by jloriente

I want to have an Android Button with icon+text centered inside it. I'm using the drawableLeft attribute to set the image, this works well if the button has a width of "wrap_content" but I need to stretch to max width so I use width "fill_parent". This moves my icon straight to the left of the button and I want both icon and text centered inside the button.

I've try setting up the padding but this only allows to give a fixed value so it is not what I need. I need to have icon+text aligned in the center.

<Button 
    android:id="@+id/startTelemoteButton" 
    android:text="@string/start_telemote"
    android:drawableLeft="@drawable/start"
    android:paddingLeft="20dip"
    android:paddingRight="20dip"            
    android:width="fill_parent"
    android:heigh="wrap_content" />

Any suggestions on how I could achieve that?

22 Answers

0 votes
answered Jan 4, 2011 by devanshu-kaushik

I think android:gravity= "centre" should work

0 votes
answered Jan 12, 2011 by ted-hopp

What happens if you try android:gravity="center_horizontal"?

0 votes
answered Sep 5, 2011 by rodja

android:drawableLeft is always keeping android:paddingLeft as a distance from the left border. When the button is not set to android:width="wrap_content", it will always hang to the left!

With Android 4.0 (API level 14) you can use android:drawableStart attribute to place a drawable at the start of the text. The only backward compatible solution I've come up with is using an ImageSpan to create a Text+Image Spannable:

Button button = (Button) findViewById(R.id.button);
Spannable buttonLabel = new SpannableString(" Button Text");
buttonLabel.setSpan(new ImageSpan(getApplicationContext(), R.drawable.icon,      
    ImageSpan.ALIGN_BOTTOM), 0, 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
button.setText(buttonLabel);

In my case I needed to also adjust the android:gravity attribute of the Button to make it look centered:

<Button
  android:id="@+id/button"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:minHeight="32dp"
  android:minWidth="150dp"
  android:gravity="center_horizontal|top" />
0 votes
answered Sep 7, 2011 by einschnaehkeee

I know this question is a bit older, but perhaps you're still open for hints or workarounds:

Create a RelativeLayout "wrap_content" with the button image as the background or the button itself as the first element of the layout. Get a LinearLayout and set it to "layout_centerInParent" and "wrap_content". Then set your Drawable as an Imageview. At last set a TextView with your text (locale).

so basically you have this structure:

RelativeLayout
  Button
    LinearLayout
      ImageView
      TextView

or like this:

RelativeLayout with "android-specific" button image as background
  LinearLayout
    ImageView
    TextView

I know with this solution there are many elements to deal with, but you can create very easy your own custom button with it and also set the exact position of text and drawables :)

0 votes
answered Sep 1, 2012 by petrnohejl

I used LinearLayout instead of Button. The OnClickListener, which I need to use works fine also for LinearLayout.

<LinearLayout
    android:id="@+id/my_button"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/selector"
    android:gravity="center"
    android:orientation="horizontal"
    android:clickable="true">

    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginRight="15dp"
        android:adjustViewBounds="true"
        android:scaleType="fitCenter"
        android:src="@drawable/icon" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:text="Text" />

</LinearLayout>
0 votes
answered Jan 9, 2013 by tangjun

public class DrawableCenterTextView extends TextView {

public DrawableCenterTextView(Context context, AttributeSet attrs,
        int defStyle) {
    super(context, attrs, defStyle);
}

public DrawableCenterTextView(Context context, AttributeSet attrs) {
    super(context, attrs);
}

public DrawableCenterTextView(Context context) {
    super(context);
}

@Override
protected void onDraw(Canvas canvas) {
    Drawable[] drawables = getCompoundDrawables();
    if (drawables != null) {
        Drawable drawableLeft = drawables[0];
        Drawable drawableRight = drawables[2];
        if (drawableLeft != null || drawableRight != null) {
            float textWidth = getPaint().measureText(getText().toString());
            int drawablePadding = getCompoundDrawablePadding();
            int drawableWidth = 0;
            if (drawableLeft != null)
                drawableWidth = drawableLeft.getIntrinsicWidth();
            else if (drawableRight != null) {
                drawableWidth = drawableRight.getIntrinsicWidth();
            }
            float bodyWidth = textWidth + drawableWidth + drawablePadding;
            canvas.translate((getWidth() - bodyWidth) / 2, 0);
        }
    }
    super.onDraw(canvas);
}

}

0 votes
answered Jan 20, 2013 by viacheslav

I dont't test it but seems that you can use CenteredContentButton library

0 votes
answered Sep 22, 2013 by rajiv

You could use a custom button which measures and draws itself to accomodate a left drawable. Please find example and usage here

public class DrawableAlignedButton extends Button {

    public DrawableAlignedButton(Context context, AttributeSet attrs) {
    super(context, attrs);
}

public DrawableAlignedButton(Context context) {
    super(context);
}

public DrawableAlignedButton(Context context, AttributeSet attrs, int style) {
    super(context, attrs, style);
}

private Drawable mLeftDrawable;

@Override
    //Overriden to work only with a left drawable.
public void setCompoundDrawablesWithIntrinsicBounds(Drawable left,
        Drawable top, Drawable right, Drawable bottom) {
    if(left == null) return;
    left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight());
    mLeftDrawable = left;
}

@Override
protected void onDraw(Canvas canvas) {
    //transform the canvas so we can draw both image and text at center.
    canvas.save();
    canvas.translate(2+mLeftDrawable.getIntrinsicWidth()/2, 0);
    super.onDraw(canvas);
    canvas.restore();
    canvas.save();
    int widthOfText = (int)getPaint().measureText(getText().toString());
    int left = (getWidth()+widthOfText)/2 - mLeftDrawable.getIntrinsicWidth() - 2;
    canvas.translate(left, (getHeight()-mLeftDrawable.getIntrinsicHeight())/2);
    mLeftDrawable.draw(canvas);
    canvas.restore();
}

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    int height = getMeasuredHeight();
    height = Math.max(height, mLeftDrawable.getIntrinsicHeight() + getPaddingTop() + getPaddingBottom());
    setMeasuredDimension(getMeasuredWidth(), height);
}
}

Usage

<com.mypackage.DrawableAlignedButton
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:drawableLeft="@drawable/my_drawable"
        android:gravity="center"
        android:padding="7dp"
        android:text="My Text" />
0 votes
answered Sep 25, 2013 by ankit-popli

I recently bumped into the same problem. Tried to find a cheaper solution so came up with this.

   <LinearLayout
        android:id="@+id/linearButton"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@drawable/selector_button_translucent_ab_color"
        android:clickable="true"
        android:descendantFocusability="blocksDescendants"
        android:gravity="center"
        android:orientation="horizontal" >

        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/app_name"
            android:src="@drawable/ic_launcher" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/app_name"
            android:textColor="@android:color/white" />
    </LinearLayout>

Then just call the OnClickListener on LinearLayout.

Hope this helps someone as it seems like a very common problem. :)

0 votes
answered Jan 3, 2014 by vuhung3990

Use RelativeLayout (container) and android:layout_centerHorizontal="true" ,my sample:

                <RelativeLayout
                    android:layout_width="0dp"
                    android:layout_height="match_parent"
                    android:layout_weight="1" >

                    <CheckBox
                        android:layout_width="wrap_content"
                        android:layout_height="match_parent"
                        android:layout_centerHorizontal="true"
                        android:layout_gravity="center"
                        android:layout_marginBottom="5dp"
                        android:layout_marginLeft="10dp"
                        android:layout_marginTop="5dp"
                        android:button="@drawable/bg_fav_detail"
                        android:drawablePadding="5dp"
                        android:text=" Favorite" />
                </RelativeLayout>
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