In my app I am using Rotate3dAnimation to show a Google map. The code is working fine, but the animation is not smooth, some lines are also visible while rotating the view. Please take a look at my code and suggest me how can I make this animation more smoother? Suggestion on achieving this type of animation in any other efficient way is highly appreciated. 
public class EventsActivity extends MapActivity implements DialogInterface.OnDismissListener {
private EventsItemModel eventsItemModel;
private Integer eventItemId;
private Integer eventCategoryId;
private static MapOverlay mapOverlay;
Drawable marker;
Context context;
private static String MY_LOCATION = "My Location";
private ViewGroup mContainer;
private ImageView mImageView;
private MapView mMapView;
private static boolean isFlipped = false;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.event_item_detail);
mContainer = (ViewGroup) findViewById(R.id.event_container);
// Since we are caching large views, we want to keep their cache
// between each animation
mContainer.setPersistentDrawingCache(ViewGroup.PERSISTENT_ANIMATION_CACHE);
mMapView = (MapView) findViewById(R.id.mapview);
mImageView = (ImageView) findViewById(R.id.mapPreview);
mImageView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
isFlipped = true;
applyRotation(1, 0, 90);
}
});
try {
eventCategoryId = getIntent().getIntExtra(AppConstants.EVENT_CATEGORY, 0);
eventItemId = getIntent().getIntExtra(AppConstants.EVENT_ID, 0);
}
catch (Exception e) {
e.printStackTrace();
}
}
public void onResume() {
super.onResume();
WeakReference<EventsActivity> weakContext = new WeakReference<EventsActivity>(this);
EventsAsyncTask task = new EventsAsyncTask(weakContext);
task.execute(eventItemId, eventCategoryId);
}
public void onTaskComplete(EventsItemModel eiModel) {
this.eventsItemModel = eiModel;
TextView calTitle = (TextView) findViewById(R.id.news_title);
TextView eventTitle = (TextView) findViewById(R.id.cal_event_title);
TextView calDate = (TextView) findViewById(R.id.cal_date);
TextView calTime = (TextView) findViewById(R.id.cal_time);
TextView calAddress = (TextView) findViewById(R.id.cal_address);
TextView calDescription = (TextView) findViewById(R.id.cal_description);
try {
calTitle.setText(eventsItemModel.getEventsCategory().getTitle());
calTitle.setVisibility(View.VISIBLE);
eventTitle.setText(eventsItemModel.getEventTitle());
calDate.setText(eventsItemModel.getFormattedDateRange());
// TODO:Format start and end time
calTime.setText("Time: " + eventsItemModel.getFormattedStartTime() + " - " + eventsItemModel.getFormattedEndTime());
calAddress.setText(eventsItemModel.getAddress());
calDescription.setText(eventsItemModel.getDescription());
System.out.println("<<<<<<<<< EventsActivity >>>>>>>>> isRead? " + eventsItemModel.getReadUnread());
eventsItemModel.setReadUnread(true);
System.out.println("<<<<<<<<<< EventsActivity >>>>>>>>>> isRead? " + eventsItemModel.getReadUnread());
}
catch (Exception e) {
e.printStackTrace();
}
mMapView.setBuiltInZoomControls(true);
setMapParameters();
createItemizedOverlay();
setLocationMarker(createMarker(R.drawable.location_marker));
showLocationPointOnMap();
}
@Override
public void onDismiss(DialogInterface dialog) {
}
@Override
protected boolean isRouteDisplayed() {
return false;
}
public void createItemizedOverlay() {
mapOverlay = new MapOverlay(this);
}
public void setLocationMarker(Drawable marker) {
mapOverlay.setLocationMarker(marker);
}
public void showLocationPointOnMap() {
GeoPoint geoPoint = new GeoPoint(0, 0);
if (eventsItemModel != null && eventsItemModel.getLatitude() != null && eventsItemModel.getLatitude().length() > 0 && eventsItemModel.getLongitude() != null
&& eventsItemModel.getLongitude().length() > 0) {
try {
geoPoint = new GeoPoint((int) (Double.parseDouble(eventsItemModel.getLatitude()) * 1E6), (int) (Double.parseDouble(eventsItemModel.getLongitude()) * 1E6));
}
catch (NumberFormatException e) {
e.printStackTrace();
}
OverlayItem item = new OverlayItem(geoPoint, MY_LOCATION, null);
mapOverlay.addItem(item);
mMapView.getOverlays().add(mapOverlay);
// move to location
mMapView.getController().animateTo(geoPoint);
// redraw map
mMapView.postInvalidate();
}
}
public void setStreetView(boolean isStreetView) {
mMapView.setStreetView(isStreetView);
}
public void setSatelliteView(boolean isSatelliteView) {
mMapView.setSatellite(isSatelliteView);
}
public void setZoom(int zoomLevel) {
mMapView.getController().setZoom(zoomLevel);
}
private void setMapParameters() {
// setStreetView(true);
// setSatelliteView(false);
setZoom(17);
}
private Drawable createMarker(int iconID) {
// Initialize icon
Drawable icon = getResources().getDrawable(iconID);
icon.setBounds(0, 0, icon.getIntrinsicWidth(), icon.getIntrinsicHeight());
return icon;
}
@Override
protected void onStop() {
// TODO Auto-generated method stub
super.onStop();
}
@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
}
/**
* Setup a new 3D rotation on the container view.
*
* @param position
* the item that was clicked to show a picture, or -1 to show the list
* @param start
* the start angle at which the rotation must begin
* @param end
* the end angle of the rotation
*/
private void applyRotation(int position, float start, float end) {
// Find the center of the container
final float centerX = mContainer.getWidth() / 2.0f;
final float centerY = mContainer.getHeight() / 2.0f;
// Create a new 3D rotation with the supplied parameter
// The animation listener is used to trigger the next animation
final Rotate3dAnimation rotation = new Rotate3dAnimation(start, end, centerX, centerY, 310.0f, true);
rotation.setDuration(500);
rotation.setFillAfter(true);
rotation.setInterpolator(new AccelerateInterpolator());
rotation.setAnimationListener(new DisplayNextView(position));
mContainer.startAnimation(rotation);
}
/**
* This class listens for the end of the first half of the animation. It then posts a new action that effectively swaps the views when the container is rotated 90 degrees and thus invisible.
*/
private final class DisplayNextView implements Animation.AnimationListener {
private final int mPosition;
private DisplayNextView(int position) {
mPosition = position;
}
public void onAnimationStart(Animation animation) {
}
public void onAnimationEnd(Animation animation) {
mContainer.post(new SwapViews(mPosition));
}
public void onAnimationRepeat(Animation animation) {
// Do nothing!!
}
}
/**
* This class is responsible for swapping the views and start the second half of the animation.
*/
private final class SwapViews implements Runnable {
private final int mPosition;
public SwapViews(int position) {
mPosition = position;
}
public void run() {
final float centerX = mContainer.getWidth() / 2.0f;
final float centerY = mContainer.getHeight() / 2.0f;
Rotate3dAnimation rotation;
if (mPosition > -1) {
mImageView.setVisibility(View.GONE);
mMapView.setVisibility(View.VISIBLE);
mMapView.requestFocus();
rotation = new Rotate3dAnimation(-90, 180, centerX, centerY, 310.0f, false);
rotation.reset();
}
else {
mMapView.setVisibility(View.GONE);
mImageView.setVisibility(View.VISIBLE);
mImageView.requestFocus();
rotation = new Rotate3dAnimation(90, 0, centerX, centerY, 310.0f, false);
}
rotation.setDuration(100);
rotation.setFillAfter(true);
rotation.setInterpolator(new DecelerateInterpolator());
mContainer.startAnimation(rotation);
}
}
@Override
public void onBackPressed() {
if (isFlipped) {
applyRotation(-1, 0, -90);
isFlipped = false;
}
else {
super.onBackPressed();
}
}
}
My xml layout is as follows:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/event_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#426773" >
<include
android:id="@+id/news_header"
layout="@layout/news_header" />
<TextView
android:id="@+id/cal_event_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@id/news_header"
android:padding="5dp"
android:textColor="@android:color/white"
android:textSize="22sp"
android:textStyle="bold"
android:typeface="sans" />
<RelativeLayout
android:id="@+id/date_time_container"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@id/cal_event_title">
<TextView
android:id="@+id/cal_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:padding="5dp"
android:textColor="@android:color/white" />
<TextView
android:id="@+id/cal_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@id/cal_date"
android:padding="5dp"
android:textColor="@android:color/white" />
</RelativeLayout>
<ImageView
android:id="@+id/mapPreview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/cal_event_title"
android:layout_alignParentRight="true"
android:paddingRight="5dp"
android:clickable="true"
android:src="@drawable/ic_event_map"
android:onClick="showMap"
android:background="@drawable/textview_border"
android:layout_marginRight="5dp"/>
<TextView
android:id="@+id/cal_address"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@id/date_time_container"
android:padding="5dp"
android:textColor="@android:color/white"
android:textSize="16sp"
android:textStyle="bold"
android:typeface="sans" />
<ScrollView
android:id="@+id/scroll_description"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/cal_address"
android:padding="5dp"
android:scrollbars="vertical" >
<RelativeLayout
android:id="@+id/map_container"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/cal_description"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="@android:color/white"/>
</RelativeLayout>
</ScrollView>
<com.google.android.maps.MapView
android:id="@+id/mapview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerInParent="true"
android:apiKey="your_google_api_key"
android:clickable="true"
android:visibility="gone" />
</RelativeLayout>
I will just give a small hint; however right now I am so busy at work I can not implement this.
The steps are
This I believe will maximize the performance.
I will try to write some code later.
CODE