Question

In my app I want to create a main menu screen layout. The layout basically has a linear layout which is 40 dp from the left, also there are four buttons in another linear layout.

Now, what I want to achieve is that when the user reaches the main menu screen, the four button should swipe in from the bottom , I know I need to inflate the first layout with the layout holding the button, I have studied a bit about interpolators on developer android, but I am still not able to achieve what I want.

Can any one help me as how I can achieve this, an example or a tutorial on inflation would help, but inflation must be from bottom to top or top to bottom.

Answer 1

If I understood correct you just need to animate your buttons(sliding from bottom to top). The first you need to define your animation in your R.anim smth like this:

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
     android:interpolator="@android:anim/accelerate_decelerate_interpolator">

<translate
    android:fromXDelta="-200%"
    android:toXDelta="0%"
    android:fromYDelta="200%"
    android:toYDelta="0%"
    android:duration="3000"/>

<alpha
    android:fromAlpha="0.0"
    android:toAlpha="1.0"
    android:duration="3000" />
</set>

Then you need to apply animation to your view or layout:

Animation a = AnimationUtils.loadAnimation(this, R.anim.alpha);
a.reset();
TextView tv = (TextView) findViewById(R.id.firstTextView);
tv.clearAnimation();
tv.startAnimation(a);