setting transparency to buttons in android

Question

I want to make Buttons with different transparency levels in android.I have used \"@android:color/transparent\". But it makes the button 100% transparent. I need a

Answer 1

Instead of this:

android:color="#66FF0000"    // Partially transparent red
android:alpha="0.25"         // 25% transparent 

you can use this:

android:background="#00FFFFFF"

Answer 2

Setting the android:alpha property for button will help... Set the colour you want and then set the alpha property.

android:color="#e5e5e5"    
android:alpha="0.25"

0.25 means 25%

Answer 3

try adding this to your button android:color="#55000000""

<Button android:id="@+id/three" android:text="@string/dtmf_3"
        android:layout_width="fill_parent" 
        android:layout_height="fill_parent"
        android:layout_weight="1" 
        android:color="#55000000" <!--Here--!>
        android:textColor="@color/white" ></Button>

Answer 4

You can try setting

android:alpha="0.7"

property on your Button in xml layout file

Answer 5

You can define your own "transparent" color in styles.xml and play with the alfa of the color, for example:

<color name="Transparent">#00000000</color>
<color name="Transparent80">#80000000</color>

EDIT: second one is 50% transparency

Answer 6

Try android:background="#70FF0000" in your button code. Works for me.