Question

I would like a LinearLayout translucent (I don’t mean transparent).
I want to emulate a Dialog in my Activity. So I tried this:

In Manifest:

android:theme="@android:style/Theme.Translucent"

In Activity onCreate:

LinearLayout MyLayout = (LinearLayout)findViewById(R.id.MyLayout);  
MyLayout.setBackgroundColor(Color.BLACK); 
MyLayout.getBackground().setAlpha(50);

But it doesn’t work because I don’t see the Home Desktop at all. Any idea?

I also tried this in xml but it din’t work either:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   android:id="@+id/MyLayout"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   android:background="#22FFFFFF"
   android:orientation="vertical" >
</LinearLayout>

Answer 1

Use an hexadecimal color code, wich consists of two digits for alpha and six for the color itself, like this:

android:background="#22FFFFFF"

It’ll make it semi-transparent.