Rotate animation android

Question

I'm trying to do a rotating image animation. I need to rotate an icon around itself just like they do in a progressbar, but what I'm getting is an image rotating around a circle. Here is my animation code

<?xml version="1.0" encoding="utf-8"?> <rotate xmlns:android="http://schemas.android.com/apk/res/android" android:fromDegrees="0" android:toDegrees="360" android:interpolator="@android:anim/linear_interpolator" android:pivotX="50%" android:pivotY="50%" android:duration="2500" android:repeatCount="infinite" android:repeatMode="restart" /> 

Where am I going wrong in here? Thanks

Answer 1

This is the source code for the layout main.xml:

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="fill_parent"     android:layout_height="fill_parent" >      <Button         android:id="@+id/testButton"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="animationText"          android:onClick="AnimClick"/>      <ImageView         android:id="@+id/testImage"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_centerInParent="true"         android:contentDescription="image_desc"         android:scaleType="fitCenter"         android:src="@drawable/cat2" />  </RelativeLayout> 

To implement the rotation animation, we can define the animation by XML or Java code. If we want to write the animation in the xml, we need to create an animation xml file under /res/anim folder. Here, we create a xml file named rotate_around_center_point.xml

<?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android"     android:shareInterpolator="false" >      <rotate         android:duration="2500"         android:interpolator="@android:anim/linear_interpolator"         android:pivotX="50%"         android:pivotY="50%"         android:repeatCount="infinite"         android:repeatMode="restart"         android:toDegrees="360" />  </set> 

and this is my Activity:

public class MainActivity extends Activity implements OnClickListener {      @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);          Button btn = (Button) findViewById(R.id.testButton);         btn.setOnClickListener(this);      }      @Override     public boolean onCreateOptionsMenu(Menu menu) {         getMenuInflater().inflate(R.menu.activity_main, menu);         return true;     }      @Override     public void onClick(View v) {         // TODO Auto-generated method stub         ImageView animationTarget = (ImageView) this.findViewById(R.id.testImage);          Animation animation = AnimationUtils.loadAnimation(this, R.anim.rotate_around_center_point);         animationTarget.startAnimation(animation);      }   } 

Answer 2

You could try with the following code, rather than doing it in XML:

RotateAnimation rotate = new RotateAnimation(0, 360,         Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,         0.5f);  rotate.setDuration(4000); rotate.setRepeatCount(Animation.INFINITE); yourView.setAnimation(rotate);