animating ImageButton in android?

Question

I am really new to animations in android (and pretty much anything else). Is there a way to animate an ImageButton? I just want to rotate the button for sometimes. Thats all. Any help ?

Thanks.

score 12 · Accepted Answer · edited Mar 28 '19 at 10:57

12

Try this code snippet.

rotate.xml

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

    android:fromDegrees="0"
    android:toDegrees="360"
    android:pivotX="50%"
    android:pivotY="50%"
    android:repeatCount="0"
    android:duration="1000" />

</set>

in java file

ImageButton imgbt = (ImageButton)findViewById(R.id.your_id);
Animation ranim = (Animation)AnimationUtils.loadAnimation(context, R.anim.rotate);
imgbt.setAnimation(ranim);

edited Mar 28 '19 at 10:57

Salim Mahboubi

561
7
25

answered Sep 27 '11 at 05:02

Niranj Patel

32,980
10
97
133

1

received an `java.lang.ClassCastException: android.view.animation.AnimationSet` error on this line : ` RotateAnimation ranim = (RotateAnimation)AnimationUtils.loadAnimation(this, R.anim.rotate);` – Ahsan Sep 27 '11 at 21:09
any help on this ? I am totally newbie with animations.. :( – Ahsan Sep 27 '11 at 21:10
2

I think the line should use Animation instead of RotateAnimation. – Ahsan Sep 27 '11 at 21:14
also, what to do if I want the cicrcular imagebutton to rotate around itself ? – Ahsan Sep 27 '11 at 21:16
this works fine if the padding for the imagebutton is uniform. thanks. – Ahsan Sep 27 '11 at 22:17

score 7 · Answer 2 · answered Jan 24 '14 at 10:21

rotate.xml

<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
    android:duration="1000"
    android:fromDegrees="0"
    android:interpolator="@android:anim/linear_interpolator"
    android:pivotX="50%"
    android:pivotY="50%"
    android:repeatCount="infinite"
    android:startOffset="0"
    android:toDegrees="360" />

Java Code :

RotateAnimation rotateAnimation = (RotateAnimation) AnimationUtils.loadAnimation(context,R.anim.rotate);
view.startAnimation(rotateAnimation);

animating ImageButton in android?

2 Answers2