how to make RTL background android

Question

I m newly in android and making background with gradient from left to right on black to white. I add reference image to make it.

If there is any suggestion, please add me.

Answer 1

Please add below.

res/drawable/gradient_bg.xml

<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <gradient
        android:angle="0"
        android:endColor="#ffffff"    
        android:startColor="#000000" />
    <corners
        android:topLeftRadius="@dimen/button_radius"
        android:topRightRadius="@dimen/button_radius"/>
</shape>

Explain:

angle

0: from Left to Right 90: Bottom to Top 180: Right to Left 270: Top to Bottom

corners

If you want to make the rounded background, add tag: corners

Answer 2

For drawables, there is an attribute

android:autoMirrored="true"

..set this..so when your app locale changes to an RTL support language..drawable will reflect that change

Answer 3

I think that you can use AnimationDrawable, the most basic way it's to have three color: blue, a gradient blue-yellow and yellow:

In res/drawable create a gradient.xml file (left to right):

<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <gradient
        android:angle="0"
        android:endColor="#FFFF00"
        android:startColor="#0000FF" />
</shape>

Then in the same folder create a animalion-list.xml file:

<animation-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="#0000FF" android:duration="333"/>

    <item android:drawable="@drawable/gradient" android:duration="333"/>

    <item android:drawable="#FFFF00" android:duration="333"/>
</animation-list>

Apply the animation-list as background to your relative layout:

<RelativeLayout:
    android:...
    android:...
    android:drawable="@drawable/animation-list"
    android:... >

    ...

</RelativeLayout>