How to make text color as transparent in listview android?

Question

I need to change Text color based on background image. My background image contains multiple colors. So, accordingly i have to change my textview color.

  <TextView    android:id="@+id/txtbloops_flower"
               android:layout_height="wrap_content"
               android:layout_width="wrap_content"
               android:textSize="16dp"
               android:layout_centerInParent="true"
               android:layout_marginLeft="10dp"
               android:textColor="#ffffff"/>

please guide me, how to do this.

Answer 1

Basically you have the option to set the transparency (opacity) and the color using android:background.

The hex value that you set it to is composed of 3 to 4 parts:

• Alpha (opacity), i'll refer to that as aa

• Red, i'll refer to it as rr

• Green, i'll refer to it as gg

• Blue, i'll refer to it as bb

Without an alpha (transparency) value:

android:background="#rrggbb"

With an alpha (transparency) value:

android:background="#aarrggbb"

The alpha value for full transparency is 00 and the alpha value for no transparency is FF

You can experiment with values in between those.