How to Create Borderless Buttons in Android [duplicate]

Answer 1

You should also set margins and padding of the picture to 0. Also look at the second, not marked answer at How to create standard Borderless buttons (like in the design guidline mentioned)?

Answer 2

Look at this: http://developer.android.com/guide/topics/ui/controls/button.html#Borderless

The attribute on your Button or ImageButton tag:

    style="?android:attr/borderlessButtonStyle"

Answer 3

I thought I had this solved when I looked here a few weeks ago and noticed the answer about using a transparent background but it isn't quite good enough because it prevents the button from being highlighted when pressed.

Also, setting the style to Widget.Holo.Button.Borderless isn't appropriate because it makes the button boundaries to big.

To figure this out once and for all, I check the android source code for the standard Calendar app and found that it uses the following:

android:background="?android:attr/selectableItemBackground"

Doing it this way ensures the button is borderless and the correct size.

Answer 4

If you use ActionbarSherlock...

<Button 
  android:id="@+id/my_button" 
  style="@style/Widget.Sherlock.ActionButton" />

Answer 5

Some days ago a stumbeled over this again.

Here my solution:

This is done in 2 steps: Setting the button background attribute to android:attr/selectableItemBackground creates you a button with feedback but no background.

android:background="?android:attr/selectableItemBackground"

The line to divide the borderless button from the rest of you layout is done by a view with the background android:attr/dividerVertical

android:background="?android:attr/dividerVertical"

For a better understanding here is a layout for a OK / Cancel borderless button combination at the bottom of your screen (like in the right picture above).

<RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="48dp"
        android:layout_alignParentBottom="true">
        <View
            android:layout_width="match_parent"
            android:layout_height="1dip"
            android:layout_marginLeft="4dip"
            android:layout_marginRight="4dip"
            android:background="?android:attr/dividerVertical"
            android:layout_alignParentTop="true"/>
        <View
            android:id="@+id/ViewColorPickerHelper"
            android:layout_width="1dip"
            android:layout_height="wrap_content"
            android:layout_alignParentTop="true"
            android:layout_alignParentBottom="true"
            android:layout_marginBottom="4dip"
            android:layout_marginTop="4dip"
            android:background="?android:attr/dividerVertical" 
            android:layout_centerHorizontal="true"/>
        <Button
            android:id="@+id/BtnColorPickerCancel"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_alignParentTop="true"
            android:layout_toLeftOf="@id/ViewColorPickerHelper"
            android:background="?android:attr/selectableItemBackground"
            android:text="@android:string/cancel" 
            android:layout_alignParentBottom="true"/>
        <Button
            android:id="@+id/BtnColorPickerOk"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_alignParentRight="true"
            android:layout_alignParentTop="true"
            android:background="?android:attr/selectableItemBackground"
            android:text="@android:string/ok" 
            android:layout_alignParentBottom="true" 
            android:layout_toRightOf="@id/ViewColorPickerHelper"/>
    </RelativeLayout>

Answer 6

android:background="@android:color/transparent"