Android Animate Rotate

Question

I did some digging in Android code, and saw the use of in the indeterminate progress bar. after trying to create my own drawable with this tag:

Answer 1

I solved this by using this drawable xml. Although it only seems to be smooth on newer versions of Android:

<rotate xmlns:android="http://schemas.android.com/apk/res/android"
    android:drawable="@drawable/spinner_pia"
    android:fromDegrees="0"
    android:pivotX="50%"
    android:pivotY="50%"
    android:toDegrees="1080" />

Answer 2

Here is the Simple Explanation of the Rotation Animation try this this will help you

http://androidtutorials60.blogspot.in/2013/09/simple-rotate-animation-in-android.html

<rotate xmlns:android="”http://schemas.android.com/apk/res/android”">
  android:duration="4000"
  android:fromdegrees="0"
  android:pivotx="50%"
  android:pivoty="50%"
  android:todegrees="360"
  android:toyscale="0.0"
</rotate>

Answer 3

I ran into the exact same issue. You can exclude those parameters (framesCount and frameDuration), and it may work for you. I tried just excluding them and it animated fine, but the width/height I was setting were not being respected, so I ended up creating a simple rotation animation and an ImageView to apply it to. Here's the animation file (res/anim/clockwise_rotation.xml):

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

Then you just inflate your Animation, set repeat count, and start it from the View

Animation rotation = AnimationUtils.loadAnimation(this, R.anim.clockwise_rotation);
rotation.setRepeatCount(Animation.INFINITE);
myView.startAnimation(rotation);

Answer 4

Instead of creating an animation (more code required, not only XML configuration), use layer-list as drawable resource. It is quite interesting that layer-list is way more fluid than animated-rotate.

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
    <rotate
        android:drawable="@drawable/spinner_loading"
        android:pivotX="50%"
        android:pivotY="50%"
        android:fromDegrees="0"
        android:toDegrees="360"/>
</item>
</layer-list>

Then of course use it in the styles as Mario Lenci wrote:

<style name="YourProgressBarStyle" parent="@android:style/Widget.ProgressBar">
    <item name="android:indeterminateDrawable">@drawable/progress_bar_indeterminate</item>
</style>

Answer 5

I don't know how to work around the private attributes, I have the same problem.

By the way if you want to change those attributes of the ProgressBar:

android:indeterminateOnly="true"
android:indeterminateBehavior="cycle"
android:indeterminateDuration="3500"
android:indeterminateDrawable="@drawable/pia_sivuvator"

you can do it easily with the Styles framework defining in the values/styles.xml file a ProgressBar style extending the standard android one:

<style name="YourProgressBarStyle" parent="@android:style/Widget.ProgressBar">
        <item name="android:indeterminateDrawable">@drawable/progress_bar_indeterminate</item>
</style>

and then applying it to the progress bar in the xml layout file.

...
<ProgressBar
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     style="@style/YourProgressBarStyle"/>
...