I am making an animated tutorial for the application. I am using a fragment over the activity to show image view sliding effect. I am using Translate animation to move the image view to the specific view to describe its working, but actually I want to animate the image view to move infinite times after reaching to the view.
Assume that view v is suppose to animate
public void ViewExapand(View v)
{
v.setVisibility(View.VISIBLE);
final int widthSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
final int heightSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
v.measure(widthSpec, heightSpec);
ValueAnimator mAnimator = slideAnimator(0, v.getMeasuredHeight(),v);
mAnimator.start();
}
private ValueAnimator slideAnimator(int start, int end, final View v)
{
ValueAnimator animator = ValueAnimator.ofInt(start, end);
animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
#Override
public void onAnimationUpdate(ValueAnimator valueAnimator) {
//Update Height
int value = (Integer) valueAnimator.getAnimatedValue();
ViewGroup.LayoutParams layoutParams = v.getLayoutParams();
layoutParams.height = value;
v.setLayoutParams(layoutParams);
}
});
return animator;
}
You can also use ObjectAnimator
ObjectAnimator.ofInt(your view, "left", 100, 250)
.setDuration(250)
.start();
Related
I have two recycler views in one screen and in between of them, there is one more button like this.
I want to update the height of recycler view of the upper one to MATCH PARENT with animation, So I had tried this.
binding.moreLl.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
ValueAnimator anim = ValueAnimator.ofInt();
anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
#Override
public void onAnimationUpdate(ValueAnimator valueAnimator) {
int val = (Integer) valueAnimator.getAnimatedValue();
ViewGroup.LayoutParams layoutParams = binding.fragmentWalletRv.getLayoutParams();
layoutParams.height = val;
binding.fragmentWalletRv.setLayoutParams(layoutParams);
}
});
anim.setDuration(500);
anim.start();
}
});
But unfortunately i cant get the expected result. So please guide me how i can do that thing.
Thanks in advance.
If you just want to have an animation when layout changes, no need to use a custom animation.
Try adding default layout change animation by enabling
android:animateLayoutChanges="true"
to the parent layout in xml.
On your more button click, only change the LayoutParams of the Recyclerview.
To change the speed of animation
LinearLayout layout = mContentView.findViewById(R.id.parent_layout);
LayoutTransition lt = layout.getLayoutTransition();
lt.setDuration(2000);
public class SlideAnimation extends Animation {
int mFromHeight;
int mToHeight;
View mView;
public SlideAnimation(View view, int fromHeight, int toHeight) {
this.mView = view;
this.mFromHeight = fromHeight;
this.mToHeight = toHeight;
}
#Override
protected void applyTransformation(float interpolatedTime, Transformation transformation) {
int newHeight;
if (mView.getHeight() != mToHeight) {
newHeight = (int) (mFromHeight + ((mToHeight - mFromHeight) * interpolatedTime));
mView.getLayoutParams().height = newHeight;
mView.requestLayout();
}
}
#Override
public void initialize(int width, int height, int parentWidth, int parentHeight) {
super.initialize(width, height, parentWidth, parentHeight);
}
#Override
public boolean willChangeBounds() {
return true;
}
}
Use above animation like below
rv1 = findViewById(R.id.rv1);
Animation animation = new SlideAnimation(rv1, rv1.getHeight(), 500);
animation.setInterpolator(new AccelerateInterpolator());
animation.setDuration(500);
rv1.setAnimation(animation);
rv1.startAnimation(animation);
I am trying to take a CardView (in a RecycleView) from actual width to 0. I am a newbie in android and in android animations. Could you say me what I am doing wrong?
This is my code:
final View v = cardViewHolder.cv;
int actualWidth = v.getMeasuredWidth();
ValueAnimator anim = ValueAnimator.ofInt(actualWidth, 0);
anim.setRepeatMode(ValueAnimator.REVERSE);
anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
#Override
public void onAnimationUpdate(ValueAnimator valueAnimator) {
int val = (Integer) valueAnimator.getAnimatedValue();
ViewGroup.LayoutParams layoutParams = v.getLayoutParams();
layoutParams.width = val;
v.setLayoutParams(layoutParams);
}
});
anim.setDuration(R.integer.card_flip_time_full);
anim.start();
With a breakpoint I see that val is always 728 (the width) and never changes. What is my fail?
I solved it:
final View v = cardViewHolder.cv;
int actualWidth = v.getMeasuredWidth();
ValueAnimator anim = ValueAnimator.ofInt(actualWidth, 0);
anim.setRepeatMode(ValueAnimator.REVERSE);
anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
#Override
public void onAnimationUpdate(ValueAnimator valueAnimator) {
// This needs to be declared as Integer instead of int
v.requestLayout(); // #mhenryk advice
Integer val = (Integer) valueAnimator.getAnimatedValue();
int value = val.intValue(); // Then get the int value
ViewGroup.LayoutParams layoutParams = v.getLayoutParams();
layoutParams.width = value;
v.setLayoutParams(layoutParams);
}
});
anim.setDuration(R.integer.card_flip_time_full);
anim.start();
I have a search bar that expands when icon is clicked in toolbar. Now, everything is cool when it is expanded, everything works fine, the thing that is not good is that the height isnt good when the search bar is collapsed. The toolbar upon collapsing search bar has bigger height than it had. Here is the code:
private void expand(View view) {
//set Visible
view.setVisibility(View.VISIBLE);
final int widthSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
final int heightSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
view.measure(widthSpec, heightSpec);
ValueAnimator mAnimator = slideAnimator(0, view.getMeasuredHeight(), view);
mAnimator.start();
}
private ValueAnimator slideAnimator(int start, int end, final View view) {
ValueAnimator animator = ValueAnimator.ofInt(start, end);
animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
#Override
public void onAnimationUpdate(ValueAnimator valueAnimator) {
//Update Height
int value = (Integer) valueAnimator.getAnimatedValue();
ViewGroup.LayoutParams layoutParams = view.getLayoutParams();
layoutParams.height = value;
view.setLayoutParams(layoutParams);
}
});
return animator;
}
private void collapse(final View view) {
int finalHeight = view.getHeight();
ValueAnimator mAnimator = slideAnimator(finalHeight, 0, view);
mAnimator.addListener(new Animator.AnimatorListener() {
#Override
public void onAnimationStart(Animator animation) {
}
#Override
public void onAnimationEnd(Animator animator) {
//Height=0, but it set visibility to GONE
view.setVisibility(View.INVISIBLE);
}
#Override
public void onAnimationCancel(Animator animation) {
}
#Override
public void onAnimationRepeat(Animator animation) {
}
});
mAnimator.start();
}
Everything is good here, check where you call method if you are changing background or any other property of the toolbar.
I need to expand and collapse CardView size in RecyclerView at run time.
I use RecyclerView to display a list and CardView as RecyclerView Item.
As I am new to this concept please help me.
I have expand on run time. like this,
Setting my view on onCreateView()
descriptionCardView.getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver
.OnPreDrawListener() {
#Override
public boolean onPreDraw() {
detailProductDescription.getViewTreeObserver().removeOnPreDrawListener(this);
// save the full height
descriptionViewFullHeight = detailProductDescription.getHeight();
// initially changing the height to min height
ViewGroup.LayoutParams layoutParams = descriptionCardView.getLayoutParams();
layoutParams.height = (int) getActivity().getResources().getDimension(R.dimen
.product_description_min_height);
descriptionCardView.setLayoutParams(layoutParams);
return true;
}
});
and onClickingcardview
#OnClick(R.id.detail_product_description)
void onProductDescriptionClicked(View view) {
toggleProductDescriptionHeight();
}
i am setting CardView Height to expand and collapse.
private int descriptionViewFullHeight;
private void toggleProductDescriptionHeight() {
int descriptionViewMinHeight = (int) getActivity().getResources().getDimension(R.dimen
.product_description_min_height);
if (descriptionCardView.getHeight() == descriptionViewMinHeight) {
// expand
ValueAnimator anim = ValueAnimator.ofInt(descriptionCardView.getMeasuredHeightAndState(),
descriptionViewFullHeight);
anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
#Override
public void onAnimationUpdate(ValueAnimator valueAnimator) {
int val = (Integer) valueAnimator.getAnimatedValue();
ViewGroup.LayoutParams layoutParams = descriptionCardView.getLayoutParams();
layoutParams.height = val;
descriptionCardView.setLayoutParams(layoutParams);
}
});
anim.start();
} else {
// collapse
ValueAnimator anim = ValueAnimator.ofInt(descriptionCardView.getMeasuredHeightAndState(),
descriptionViewMinHeight);
anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
#Override
public void onAnimationUpdate(ValueAnimator valueAnimator) {
int val = (Integer) valueAnimator.getAnimatedValue();
ViewGroup.LayoutParams layoutParams = descriptionCardView.getLayoutParams();
layoutParams.height = val;
descriptionCardView.setLayoutParams(layoutParams);
}
});
anim.start();
}
}
I'm creating sliding animation for my views using Value Animator. Problem is, when subviews is EditText animation is choppy. Code:
private ValueAnimator SlideAnimator(int start,int end, View mView)
{
ValueAnimator animator = ValueAnimator.OfInt(start, end);
animator.SetDuration(2500);
animator.Update +=
(object sender, ValueAnimator.AnimatorUpdateEventArgs e) => {
var value = (int)animator.AnimatedValue;
ViewGroup.LayoutParams layoutParams = mView.LayoutParameters;
layoutParams.Height = value;
mView.LayoutParameters=layoutParams;
mView.RequestLayout();
};
return animator;
if (wrappedChildren[position].Visibility == ViewStates.Visible)
{
int finalHeight = wrappedChildren[position].Height;
ValueAnimator mAnimator = SlideAnimator(finalHeight, 0, wrappedChildren[position]);
mAnimator.Start();
mAnimator.AnimationEnd += (sender, args) =>
{
SetSectionVisibility(position, ViewStates.Gone);
};
}
else
{
int widthSpec = View.MeasureSpec.MakeMeasureSpec(0, MeasureSpecMode.Unspecified);
int heightSpec = View.MeasureSpec.MakeMeasureSpec(0, MeasureSpecMode.Unspecified);
wrappedChildren[position].Measure(widthSpec,heightSpec);
int measuredHeight = wrappedChildren[position].MeasuredHeight;
ValueAnimator mAnimator = SlideAnimator(0, measuredHeight,wrappedChildren[position]);
mAnimator.Start();
SetSectionVisibility(position, ViewStates.Visible);
}
wrappedChildren[position] is View that holds EditText subview
Have you tried it on emulator or real device? It may be sluggish just because of emulator...