/**
* Sets up the animation supplied in the {@link AnimatorSet#play(Animator)} call that created
* this <code>Builder</code> object to play when the given amount of time elapses.
*
* @param delay The number of milliseconds that should elapse before the animation starts.
*/
public Builder after(long delay) {
// setup dummy ValueAnimator just to run the clock
ValueAnimator anim = ValueAnimator.ofFloat(0f, 1f);
anim.setDuration(delay);
after(anim);
return this;
}
public MyAnimationView(Context context) {
super(context);
// Animate background color
// Note that setting the background color will automatically invalidate the
// view, so that the animated color, and the bouncing balls, get redisplayed on
// every frame of the animation.
ValueAnimator colorAnim = ObjectAnimator.ofInt(this, "backgroundColor", RED, BLUE);
colorAnim.setDuration(3000);
colorAnim.setEvaluator(new ArgbEvaluator());
colorAnim.setRepeatCount(ValueAnimator.INFINITE);
colorAnim.setRepeatMode(ValueAnimator.REVERSE);
colorAnim.start();
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if (event.getAction() != MotionEvent.ACTION_DOWN
&& event.getAction() != MotionEvent.ACTION_MOVE) {
return false;
}
ShapeHolder newBall = addBall(event.getX(), event.getY());
// Bouncing animation with squash and stretch
float startY = newBall.getY();
float endY = getHeight() - 50f;
float h = (float) getHeight();
float eventY = event.getY();
int duration = (int) (500 * ((h - eventY) / h));
ValueAnimator bounceAnim = ObjectAnimator.ofFloat(newBall, "y", startY, endY);
bounceAnim.setDuration(duration);
bounceAnim.setInterpolator(new AccelerateInterpolator());
ValueAnimator squashAnim1 =
ObjectAnimator.ofFloat(newBall, "x", newBall.getX(), newBall.getX() - 25f);
squashAnim1.setDuration(duration / 4);
squashAnim1.setRepeatCount(1);
squashAnim1.setRepeatMode(ValueAnimator.REVERSE);
squashAnim1.setInterpolator(new DecelerateInterpolator());
ValueAnimator squashAnim2 =
ObjectAnimator.ofFloat(newBall, "width", newBall.getWidth(), newBall.getWidth() + 50);
squashAnim2.setDuration(duration / 4);
squashAnim2.setRepeatCount(1);
squashAnim2.setRepeatMode(ValueAnimator.REVERSE);
squashAnim2.setInterpolator(new DecelerateInterpolator());
ValueAnimator stretchAnim1 = ObjectAnimator.ofFloat(newBall, "y", endY, endY + 25f);
stretchAnim1.setDuration(duration / 4);
stretchAnim1.setRepeatCount(1);
stretchAnim1.setInterpolator(new DecelerateInterpolator());
stretchAnim1.setRepeatMode(ValueAnimator.REVERSE);
ValueAnimator stretchAnim2 =
ObjectAnimator.ofFloat(newBall, "height", newBall.getHeight(), newBall.getHeight() - 25);
stretchAnim2.setDuration(duration / 4);
stretchAnim2.setRepeatCount(1);
stretchAnim2.setInterpolator(new DecelerateInterpolator());
stretchAnim2.setRepeatMode(ValueAnimator.REVERSE);
ValueAnimator bounceBackAnim = ObjectAnimator.ofFloat(newBall, "y", endY, startY);
bounceBackAnim.setDuration(duration);
bounceBackAnim.setInterpolator(new DecelerateInterpolator());
// Sequence the down/squash&stretch/up animations
AnimatorSet bouncer = new AnimatorSet();
bouncer.play(bounceAnim).before(squashAnim1);
bouncer.play(squashAnim1).with(squashAnim2);
bouncer.play(squashAnim1).with(stretchAnim1);
bouncer.play(squashAnim1).with(stretchAnim2);
bouncer.play(bounceBackAnim).after(stretchAnim2);
// Fading animation - remove the ball when the animation is done
ValueAnimator fadeAnim = ObjectAnimator.ofFloat(newBall, "alpha", 1f, 0f);
fadeAnim.setDuration(250);
fadeAnim.addListener(
new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
balls.remove(((ObjectAnimator) animation).getTarget());
}
});
// Sequence the two animations to play one after the other
AnimatorSet animatorSet = new AnimatorSet();
animatorSet.play(bouncer).before(fadeAnim);
// Start the animation
animatorSet.start();
return true;
}
private void startAnimation() {
ValueAnimator mAnimatorAlpha = ValueAnimator.ofInt(255, 0);
mAnimatorAlpha.addUpdateListener(
new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
int a = (int) animation.getAnimatedValue();
Log.e("123132:", "" + a);
mNewPaint.setAlpha((int) animation.getAnimatedValue());
invalidate();
}
});
mAnimatorAlpha.setDuration(2000);
mAnimatorAlpha.start();
// Point startPoint = new Point(RADIUS, RADIUS);
// Point endPoint = new Point(getWidth() - RADIUS, getHeight() - RADIUS);
// ValueAnimator anim1 = ValueAnimator.ofObject(new PointEvaluator(), startPoint,
// endPoint);
//
// anim = ValueAnimator.ofObject(new ColorEvaluator(),
// "#FF0000", "#0000FF" );
// anim2 = ValueAnimator.ofObject( new ColorEvaluator(),
// "#0000FF", "#FF0000");
// AnimatorSet animSet = new AnimatorSet();
// animSet.play(anim1).with(anim2);
// animSet.setDuration(5000);
// anim1.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
// @Override
// public void onAnimationUpdate(ValueAnimator animation) {
// currentPoint = (Point) animation.getAnimatedValue();
// invalidate();
// }
// });
//
// anim2.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
// @Override
// public void onAnimationUpdate(ValueAnimator animation) {
// mNewPaint.setColor(Color.parseColor((String) animation.getAnimatedValue()));
// invalidate();
// }
// });
// anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
// @Override
// public void onAnimationUpdate(ValueAnimator animation) {
// mNewPaint.setColor(Color.parseColor((String) animation.getAnimatedValue()));
// invalidate();
// }
// });
//
// anim.addListener(new Animator.AnimatorListener() {
// @Override
// public void onAnimationStart(Animator animation) {
//
// }
//
// @Override
// public void onAnimationEnd(Animator animation) {
// isTrue = true;
// }
//
// @Override
// public void onAnimationCancel(Animator animation) {
//
// }
//
// @Override
// public void onAnimationRepeat(Animator animation) {
//
// }
// });
// anim2.addListener(new Animator.AnimatorListener() {
// @Override
// public void onAnimationStart(Animator animation) {
//
// }
//
// @Override
// public void onAnimationEnd(Animator animation) {
// anim.setDuration(5000);
// anim.start();
// }
//
// @Override
// public void onAnimationCancel(Animator animation) {
//
// }
//
// @Override
// public void onAnimationRepeat(Animator animation) {
//
// }
// });
//
// anim2.start();
}
/**
* Sets the length of the animation. The default duration is 300 milliseconds.
*
* @param duration The length of the animation, in milliseconds.
* @return ObjectAnimator The object called with setDuration(). This return value makes it easier
* to compose statements together that construct and then set the duration, as in <code>
* ObjectAnimator.ofInt(target, propertyName, 0, 10).setDuration(500).start()</code>.
*/
@Override
public ObjectAnimator setDuration(long duration) {
super.setDuration(duration);
return this;
}
/**
* {@inheritDoc}
*
* <p>Starting this <code>AnimatorSet</code> will, in turn, start the animations for which it is
* responsible. The details of when exactly those animations are started depends on the dependency
* relationships that have been set up between the animations.
*/
@SuppressWarnings("unchecked")
@Override
public void start() {
mTerminated = false;
mStarted = true;
// First, sort the nodes (if necessary). This will ensure that sortedNodes
// contains the animation nodes in the correct order.
sortNodes();
int numSortedNodes = mSortedNodes.size();
for (int i = 0; i < numSortedNodes; ++i) {
Node node = mSortedNodes.get(i);
// First, clear out the old listeners
ArrayList<AnimatorListener> oldListeners = node.animation.getListeners();
if (oldListeners != null && oldListeners.size() > 0) {
final ArrayList<AnimatorListener> clonedListeners =
new ArrayList<AnimatorListener>(oldListeners);
for (AnimatorListener listener : clonedListeners) {
if (listener instanceof DependencyListener || listener instanceof AnimatorSetListener) {
node.animation.removeListener(listener);
}
}
}
}
// nodesToStart holds the list of nodes to be started immediately. We don't want to
// start the animations in the loop directly because we first need to set up
// dependencies on all of the nodes. For example, we don't want to start an animation
// when some other animation also wants to start when the first animation begins.
final ArrayList<Node> nodesToStart = new ArrayList<Node>();
for (int i = 0; i < numSortedNodes; ++i) {
Node node = mSortedNodes.get(i);
if (mSetListener == null) {
mSetListener = new AnimatorSetListener(this);
}
if (node.dependencies == null || node.dependencies.size() == 0) {
nodesToStart.add(node);
} else {
int numDependencies = node.dependencies.size();
for (int j = 0; j < numDependencies; ++j) {
Dependency dependency = node.dependencies.get(j);
dependency.node.animation.addListener(
new DependencyListener(this, node, dependency.rule));
}
node.tmpDependencies = (ArrayList<Dependency>) node.dependencies.clone();
}
node.animation.addListener(mSetListener);
}
// Now that all dependencies are set up, start the animations that should be started.
if (mStartDelay <= 0) {
for (Node node : nodesToStart) {
node.animation.start();
mPlayingSet.add(node.animation);
}
} else {
mDelayAnim = ValueAnimator.ofFloat(0f, 1f);
mDelayAnim.setDuration(mStartDelay);
mDelayAnim.addListener(
new AnimatorListenerAdapter() {
boolean canceled = false;
@Override
public void onAnimationCancel(Animator anim) {
canceled = true;
}
@Override
public void onAnimationEnd(Animator anim) {
if (!canceled) {
int numNodes = nodesToStart.size();
for (int i = 0; i < numNodes; ++i) {
Node node = nodesToStart.get(i);
node.animation.start();
mPlayingSet.add(node.animation);
}
}
}
});
mDelayAnim.start();
}
if (mListeners != null) {
ArrayList<AnimatorListener> tmpListeners = (ArrayList<AnimatorListener>) mListeners.clone();
int numListeners = tmpListeners.size();
for (int i = 0; i < numListeners; ++i) {
tmpListeners.get(i).onAnimationStart(this);
}
}
if (mNodes.size() == 0 && mStartDelay == 0) {
// Handle unusual case where empty AnimatorSet is started - should send out
// end event immediately since the event will not be sent out at all otherwise
mStarted = false;
if (mListeners != null) {
ArrayList<AnimatorListener> tmpListeners = (ArrayList<AnimatorListener>) mListeners.clone();
int numListeners = tmpListeners.size();
for (int i = 0; i < numListeners; ++i) {
tmpListeners.get(i).onAnimationEnd(this);
}
}
}
}