List of usage examples for android.animation AnimatorSet start
@SuppressWarnings("unchecked") @Override public void start()
Starting this AnimatorSet will, in turn, start the animations for which it is responsible.
From source file:lewa.support.v7.app.ActionBarImplBase.java
public void hideSplit() { if (mCurrentShowAnim != null) { mCurrentShowAnim.end();/*from w ww . ja v a2 s. c om*/ } if (mSplitView == null || mSplitView.getVisibility() == View.GONE) { return; } if (mShowHideAnimationEnabled) { mSplitView.setAlpha(1); mSplitView.setTransitioning(true); AnimatorSet anim = new AnimatorSet(); AnimatorSet.Builder b = anim.play(ObjectAnimator.ofFloat(mSplitView, "alpha", 0)); b.with(ObjectAnimator.ofFloat(mSplitView, "translationY", 0, mSplitView.getHeight())); anim.addListener(mSplitHideListener); mCurrentShowAnim = anim; anim.start(); } else { mSplitHideListener.onAnimationEnd(null); } }
From source file:com.tengio.FloatingSearchView.java
private void transitionOutLeftSection(boolean withAnim) { switch (mLeftActionMode) { case LEFT_ACTION_MODE_SHOW_HAMBURGER: closeMenuDrawable(mMenuBtnDrawable, withAnim); break;//from ww w .ja va 2s . c om case LEFT_ACTION_MODE_SHOW_SEARCH: changeIcon(mLeftAction, mIconSearch, withAnim); break; case LEFT_ACTION_MODE_SHOW_HOME: //do nothing break; case LEFT_ACTION_MODE_NO_LEFT_ACTION: mLeftAction.setImageDrawable(mIconBackArrow); if (withAnim) { ObjectAnimator searchInputTransXAnim = ViewPropertyObjectAnimator.animate(mSearchInputParent) .translationX(-Util.dpToPx(LEFT_MENU_WIDTH_AND_MARGIN_START)).get(); ObjectAnimator scaleXArrowAnim = ViewPropertyObjectAnimator.animate(mLeftAction).scaleX(0.5f).get(); ObjectAnimator scaleYArrowAnim = ViewPropertyObjectAnimator.animate(mLeftAction).scaleY(0.5f).get(); ObjectAnimator fadeArrowAnim = ViewPropertyObjectAnimator.animate(mLeftAction).alpha(0.5f).get(); scaleXArrowAnim.setDuration(300); scaleYArrowAnim.setDuration(300); fadeArrowAnim.setDuration(300); scaleXArrowAnim.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animation) { //restore normal state mLeftAction.setScaleX(1.0f); mLeftAction.setScaleY(1.0f); mLeftAction.setAlpha(1.0f); mLeftAction.setVisibility(View.INVISIBLE); } }); AnimatorSet animSet = new AnimatorSet(); animSet.setDuration(350); animSet.playTogether(scaleXArrowAnim, scaleYArrowAnim, fadeArrowAnim, searchInputTransXAnim); animSet.start(); } else { mLeftAction.setVisibility(View.INVISIBLE); } break; } }
From source file:com.sbgapps.scoreit.ui.ScoreItActivity.java
public void setActionButtonProperties(boolean animate) { if (animate) { ObjectAnimator scaleX = ObjectAnimator.ofFloat(mActionButton, "scaleX", 0f); ObjectAnimator scaleY = ObjectAnimator.ofFloat(mActionButton, "scaleY", 0f); AnimatorSet animatorSet = new AnimatorSet(); animatorSet.addListener(new Animator.AnimatorListener() { @Override/*w w w .j a va 2 s . co m*/ public void onAnimationStart(Animator animation) { } @Override public void onAnimationEnd(Animator animation) { setActionButtonColor(); setActionButtonPosition(); ObjectAnimator scaleX = ObjectAnimator.ofFloat(mActionButton, "scaleX", 1f); ObjectAnimator scaleY = ObjectAnimator.ofFloat(mActionButton, "scaleY", 1f); AnimatorSet animatorSet = new AnimatorSet(); animatorSet.play(scaleX).with(scaleY); animatorSet.start(); } @Override public void onAnimationCancel(Animator animation) { } @Override public void onAnimationRepeat(Animator animation) { } }); animatorSet.play(scaleX).with(scaleY); animatorSet.start(); } else { setActionButtonPosition(); } }
From source file:com.apptentive.android.sdk.module.messagecenter.view.MessageCenterActivityContent.java
private void deleteItemWithAnimation(final View v, final Animator.AnimatorListener al, final ValueAnimator.AnimatorUpdateListener vl, long delay) { if (v == null) { return;/*from w w w .jav a 2 s.c om*/ } AnimatorSet animatorSet = AnimationUtil.buildListViewRowRemoveAnimator(v, al, vl); animatorSet.setStartDelay(delay); animatorSet.start(); }
From source file:com.example.android.tryanimationt.TryAnimationFragment.java
void animButtons(ImageButton bt, boolean in, int animTime, int delay) { //delay = 0;// ww w . ja va2s. c om float rotateStart, rotateEnd; float scaleXStart, scaleXEnd; float scaleYStart, scaleYEnd; float transitionXStart, transitionXEnd; float transitionYStart, transitionYEnd; if (in) { rotateStart = 0; rotateEnd = 359; scaleXStart = 0.66f; scaleXEnd = 1; scaleYStart = 0.66f; scaleYEnd = 1; transitionXStart = 60; transitionXEnd = 0; transitionYStart = 10; transitionYEnd = 0; } else { rotateStart = 359; rotateEnd = 0; scaleXStart = 1; scaleXEnd = 0.66f; scaleYStart = 1; scaleYEnd = 0.66f; transitionXStart = 0; transitionXEnd = 60; transitionYStart = 0; transitionYEnd = 10; } bt.setTranslationX(transitionXStart); bt.setTranslationY(transitionYStart); AnimatorSet animSet = new AnimatorSet(); ObjectAnimator animRotate = ObjectAnimator.ofFloat(bt, "rotation", rotateStart, rotateEnd); animRotate.setDuration(animTime); ObjectAnimator animScaleX = ObjectAnimator.ofFloat(bt, "scaleX", scaleXStart, scaleXEnd); animScaleX.setDuration(animTime); animScaleX.setStartDelay(Math.round(delay * 0.66)); ObjectAnimator animScaleY = ObjectAnimator.ofFloat(bt, "scaleY", scaleYStart, scaleYEnd); animScaleY.setDuration(animTime); animScaleY.setStartDelay(Math.round(delay * 0.66)); ObjectAnimator animTrx = ObjectAnimator.ofFloat(bt, "translationX", transitionXStart, transitionXEnd); animTrx.setDuration(animTime); animTrx.setStartDelay(delay); ObjectAnimator animTry = ObjectAnimator.ofFloat(bt, "translationY", transitionYStart, transitionYEnd); animTry.setDuration(animTime); animTry.setStartDelay(delay); animSet.setInterpolator(new BounceInterpolator()); animSet.playTogether(animRotate, animScaleX, animScaleY, animTrx, animTry); animSet.start(); }
From source file:com.modprobe.profit.ExpandingListView.java
/** * This method collapses the view that was clicked and animates all the views * around it to close around the collapsing view. There are several steps required * to do this which are outlined below./*from ww w . j a v a 2 s .c o m*/ * * 1. Update the layout parameters of the view clicked so as to minimize its height * to the original collapsed (default) state. * 2. After invoking a layout, the listview will shift all the cells so as to display * them most efficiently. Therefore, during the first predraw pass, the listview * must be offset by some amount such that given the custom bound change upon * collapse, all the cells that need to be on the screen after the layout * are rendered by the listview. * 3. On the second predraw pass, all the items are first returned to their original * location (before the first layout). * 4. The collapsing view's bounds are animated to what the final values should be. * 5. The bounds above the collapsing view are animated downwards while the bounds * below the collapsing view are animated upwards. * 6. The extra text is faded out as its contents become visible throughout the * animation process. */ private void collapseView(final View view) { final SuggestionExpandingListViewItem viewObject = (SuggestionExpandingListViewItem) getItemAtPosition( getPositionForView(view)); /* Store the original top and bottom bounds of all the cells.*/ final int oldTop = view.getTop(); final int oldBottom = view.getBottom(); final HashMap<View, int[]> oldCoordinates = new HashMap<View, int[]>(); int childCount = getChildCount(); for (int i = 0; i < childCount; i++) { View v = getChildAt(i); ViewCompat.setHasTransientState(v, true); oldCoordinates.put(v, new int[] { v.getTop(), v.getBottom() }); } /* Update the layout so the extra content becomes invisible.*/ view.setLayoutParams(new AbsListView.LayoutParams(AbsListView.LayoutParams.MATCH_PARENT, viewObject.getCollapsedHeight())); /* Add an onPreDraw listener. */ final ViewTreeObserver observer = getViewTreeObserver(); observer.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() { @Override public boolean onPreDraw() { if (!mShouldRemoveObserver) { /*Same as for expandingView, the parameters for setSelectionFromTop must * be determined such that the necessary cells of the ListView are rendered * and added to it.*/ mShouldRemoveObserver = true; int newTop = view.getTop(); int newBottom = view.getBottom(); int newHeight = newBottom - newTop; int oldHeight = oldBottom - oldTop; int deltaHeight = oldHeight - newHeight; mTranslate = getTopAndBottomTranslations(oldTop, oldBottom, deltaHeight, false); int currentTop = view.getTop(); int futureTop = oldTop + mTranslate[0]; int firstChildStartTop = getChildAt(0).getTop(); int firstVisiblePosition = getFirstVisiblePosition(); int deltaTop = currentTop - futureTop; int i; int childCount = getChildCount(); for (i = 0; i < childCount; i++) { View v = getChildAt(i); int height = v.getBottom() - Math.max(0, v.getTop()); if (deltaTop - height > 0) { firstVisiblePosition++; deltaTop -= height; } else { break; } } if (i > 0) { firstChildStartTop = 0; } setSelectionFromTop(firstVisiblePosition, firstChildStartTop - deltaTop); requestLayout(); return false; } mShouldRemoveObserver = false; observer.removeOnPreDrawListener(this); int yTranslateTop = mTranslate[0]; int yTranslateBottom = mTranslate[1]; int index = indexOfChild(view); int childCount = getChildCount(); for (int i = 0; i < childCount; i++) { View v = getChildAt(i); int[] old = oldCoordinates.get(v); if (old != null) { /* If the cell was present in the ListView before the collapse and * after the collapse then the bounds are reset to their old values.*/ v.setTop(old[0]); v.setBottom(old[1]); ViewCompat.setHasTransientState(v, false); } else { /* If the cell is present in the ListView after the collapse but * not before the collapse then the bounds are calculated using * the bottom and top translation of the collapsing cell.*/ int delta = i > index ? yTranslateBottom : -yTranslateTop; v.setTop(v.getTop() + delta); v.setBottom(v.getBottom() + delta); } } final View expandingLayout = view.findViewById(R.id.expanding_layout); /* Animates all the cells present on the screen after the collapse. */ ArrayList<Animator> animations = new ArrayList<Animator>(); for (int i = 0; i < childCount; i++) { View v = getChildAt(i); if (v != view) { float diff = i > index ? -yTranslateBottom : yTranslateTop; animations.add(getAnimation(v, diff, diff)); } } /* Adds animation for collapsing the cell that was clicked. */ animations.add(getAnimation(view, yTranslateTop, -yTranslateBottom)); /* Adds an animation for fading out the extra content. */ animations.add(ObjectAnimator.ofFloat(expandingLayout, View.ALPHA, 1, 0)); /* Disabled the ListView for the duration of the animation.*/ setEnabled(false); setClickable(false); /* Play all the animations created above together at the same time. */ AnimatorSet s = new AnimatorSet(); s.playTogether(animations); s.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animation) { expandingLayout.setVisibility(View.GONE); view.setLayoutParams(new AbsListView.LayoutParams(AbsListView.LayoutParams.MATCH_PARENT, AbsListView.LayoutParams.WRAP_CONTENT)); viewObject.setExpanded(false); setEnabled(true); setClickable(true); /* Note that alpha must be set back to 1 in case this view is reused * by a cell that was expanded, but not yet collapsed, so its state * should persist in an expanded state with the extra content visible.*/ expandingLayout.setAlpha(1); } }); s.start(); return true; } }); }
From source file:com.dk.animation.effect.out.HingeOut.java
@Override public void startAnimation(final ViewHolder holder, long duration, final BaseItemAnimator animator) { ViewCompat.animate(holder.itemView).cancel(); AnimatorSet set = new AnimatorSet(); View target = holder.itemView; int abs = Math.random() > 0.5 ? -1 : 1; float x, y;/*from ww w. ja va 2 s. c o m*/ if (abs > 0) { x = target.getPaddingLeft(); y = target.getPaddingTop(); } else { x = target.getWidth(); y = target.getPaddingTop(); } set.setDuration(animator.getRemoveDuration()); set.addListener(new AnimatorListener() { @Override public void onAnimationStart(Animator animation) { } @Override public void onAnimationRepeat(Animator animation) { } @Override public void onAnimationEnd(Animator animation) { animator.dispatchAddFinished(holder); animator.mAddAnimations.remove(holder); animator.dispatchFinishedWhenDone(); } @Override public void onAnimationCancel(Animator animation) { } }); set.playTogether( ObjectAnimator.ofFloat(target, "rotation", 0, abs * 80, abs * 60, abs * 80, abs * 60, abs * 60), ObjectAnimator.ofFloat(target, "translationY", 0, 0, 0, 0, 0, 700), ObjectAnimator.ofFloat(target, "alpha", 1, 1, 1, 1, 1, 0), ObjectAnimator.ofFloat(target, "pivotX", x, x, x, x, x, x), ObjectAnimator.ofFloat(target, "pivotY", y, y, y, y, y, y)); set.setStartDelay(mDelay * mDelayCount); set.setDuration(animator.getAddDuration()); set.start(); animator.mAddAnimations.add(holder); }
From source file:com.hannesdorfmann.search.SearchActivity.java
@OnClick(R.id.results_scrim) protected void hideSaveConfimation() { if (confirmSaveContainer.getVisibility() == View.VISIBLE) { // contract the bubble & hide the scrim AnimatorSet hideConfirmation = new AnimatorSet(); hideConfirmation.playTogether( ViewAnimationUtils.createCircularReveal(confirmSaveContainer, confirmSaveContainer.getWidth() / 2, confirmSaveContainer.getHeight() / 2, confirmSaveContainer.getWidth() / 2, fab.getWidth() / 2), ObjectAnimator.ofArgb(resultsScrim, ViewUtils.BACKGROUND_COLOR, Color.TRANSPARENT)); hideConfirmation.setDuration(150L); hideConfirmation.setInterpolator( AnimationUtils.loadInterpolator(SearchActivity.this, android.R.interpolator.fast_out_slow_in)); hideConfirmation.addListener(new AnimatorListenerAdapter() { @Override// w w w . j a v a2 s .co m public void onAnimationEnd(Animator animation) { confirmSaveContainer.setVisibility(View.GONE); resultsScrim.setVisibility(View.GONE); fab.setVisibility(results.getVisibility()); } }); hideConfirmation.start(); } }
From source file:com.shoshin.paidpay.ExpandingListView.java
/** * This method collapses the view that was clicked and animates all the views * around it to close around the collapsing view. There are several steps required * to do this which are outlined below./* www .j a v a 2s . c om*/ * * 1. Update the layout parameters of the view clicked so as to minimize its height * to the original collapsed (default) state. * 2. After invoking a layout, the listview will shift all the cells so as to display * them most efficiently. Therefore, during the first predraw pass, the listview * must be offset by some amount such that given the custom bound change upon * collapse, all the cells that need to be on the screen after the layout * are rendered by the listview. * 3. On the second predraw pass, all the items are first returned to their original * location (before the first layout). * 4. The collapsing view's bounds are animated to what the final values should be. * 5. The bounds above the collapsing view are animated downwards while the bounds * below the collapsing view are animated upwards. * 6. The extra text is faded out as its contents become visible throughout the * animation process. */ private void collapseView(final View view) { final ExpandableListItem viewObject = (ExpandableListItem) getItemAtPosition(getPositionForView(view)); /* Store the original top and bottom bounds of all the cells.*/ final int oldTop = view.getTop(); final int oldBottom = view.getBottom(); final HashMap<View, int[]> oldCoordinates = new HashMap<View, int[]>(); int childCount = getChildCount(); for (int i = 0; i < childCount; i++) { View v = getChildAt(i); ViewCompat.setHasTransientState(v, true); oldCoordinates.put(v, new int[] { v.getTop(), v.getBottom() }); } /* Update the layout so the extra content becomes invisible.*/ view.setLayoutParams(new AbsListView.LayoutParams(AbsListView.LayoutParams.MATCH_PARENT, viewObject.getCollapsedHeight())); /* Add an onPreDraw listener. */ final ViewTreeObserver observer = getViewTreeObserver(); observer.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() { @Override public boolean onPreDraw() { if (!mShouldRemoveObserver) { /*Same as for expandingView, the parameters for setSelectionFromTop must * be determined such that the necessary cells of the ListView are rendered * and added to it.*/ mShouldRemoveObserver = true; int newTop = view.getTop(); int newBottom = view.getBottom(); int newHeight = newBottom - newTop; int oldHeight = oldBottom - oldTop; int deltaHeight = oldHeight - newHeight; mTranslate = getTopAndBottomTranslations(oldTop, oldBottom, deltaHeight, false); int currentTop = view.getTop(); int futureTop = oldTop + mTranslate[0]; int firstChildStartTop = getChildAt(0).getTop(); int firstVisiblePosition = getFirstVisiblePosition(); int deltaTop = currentTop - futureTop; int i; int childCount = getChildCount(); for (i = 0; i < childCount; i++) { View v = getChildAt(i); int height = v.getBottom() - Math.max(0, v.getTop()); if (deltaTop - height > 0) { firstVisiblePosition++; deltaTop -= height; } else { break; } } if (i > 0) { firstChildStartTop = 0; } setSelectionFromTop(firstVisiblePosition, firstChildStartTop - deltaTop); requestLayout(); return false; } mShouldRemoveObserver = false; observer.removeOnPreDrawListener(this); int yTranslateTop = mTranslate[0]; int yTranslateBottom = mTranslate[1]; int index = indexOfChild(view); int childCount = getChildCount(); for (int i = 0; i < childCount; i++) { View v = getChildAt(i); int[] old = oldCoordinates.get(v); if (old != null) { /* If the cell was present in the ListView before the collapse and * after the collapse then the bounds are reset to their old values.*/ v.setTop(old[0]); v.setBottom(old[1]); ViewCompat.setHasTransientState(v, false); } else { /* If the cell is present in the ListView after the collapse but * not before the collapse then the bounds are calculated using * the bottom and top translation of the collapsing cell.*/ int delta = i > index ? yTranslateBottom : -yTranslateTop; v.setTop(v.getTop() + delta); v.setBottom(v.getBottom() + delta); } } final View expandingLayout = view.findViewById(R.id.expanding_layout); /* Animates all the cells present on the screen after the collapse. */ ArrayList<Animator> animations = new ArrayList<Animator>(); for (int i = 0; i < childCount; i++) { View v = getChildAt(i); if (v != view) { float diff = i > index ? -yTranslateBottom : yTranslateTop; animations.add(getAnimation(v, diff, diff)); } } /* Adds animation for collapsing the cell that was clicked. */ animations.add(getAnimation(view, yTranslateTop, -yTranslateBottom)); /* Adds an animation for fading out the extra content. */ //TODO animations.add(ObjectAnimator.ofFloat(expandingLayout, View.ALPHA, 1, 0)); /* Disabled the ListView for the duration of the animation.*/ setEnabled(false); setClickable(false); /* Play all the animations created above together at the same time. */ AnimatorSet s = new AnimatorSet(); s.playTogether(animations); s.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animation) { expandingLayout.setVisibility(View.GONE); view.setLayoutParams(new AbsListView.LayoutParams(AbsListView.LayoutParams.MATCH_PARENT, AbsListView.LayoutParams.WRAP_CONTENT)); viewObject.setExpanded(false); setEnabled(true); setClickable(true); /* Note that alpha must be set back to 1 in case this view is reused * by a cell that was expanded, but not yet collapsed, so its state * should persist in an expanded state with the extra content visible.*/ expandingLayout.setAlpha(1); invalidateViews(); } }); s.start(); return true; } }); }
From source file:graphic.expand_graphic.ExpandingListView.java
/** * This method expands the view that was clicked and animates all the views * around it to make room for the expanding view. There are several steps * required to do this which are outlined below. * <p/>// w w w .ja v a2s. c om * 1. Store the current top and bottom bounds of each visible item in the * listview. 2. Update the layout parameters of the selected view. In the * context of this method, the view should be originally collapsed and set * to some custom height. The layout parameters are updated so as to wrap * the content of the additional text that is to be displayed. * <p/> * After invoking a layout to take place, the listview will order all the * items such that there is space for each view. This layout will be * independent of what the bounds of the items were prior to the layout so * two pre-draw passes will be made. This is necessary because after the * layout takes place, some views that were visible before the layout may * now be off bounds but a reference to these views is required so the * animation completes as intended. * <p/> * 3. The first predraw pass will set the bounds of all the visible items to * their original location before the layout took place and then force * another layout. Since the bounds of the cells cannot be set directly, the * method setSelectionFromTop can be used to achieve a very similar effect. * 4. The expanding view's bounds are animated to what the final values * should be from the original bounds. 5. The bounds above the expanding * view are animated upwards while the bounds below the expanding view are * animated downwards. 6. The extra text is faded in as its contents become * visible throughout the animation process. * <p/> * It is important to note that the listview is disabled during the * animation because the scrolling behaviour is unpredictable if the bounds * of the items within the listview are not constant during the scroll. */ private void expandView(final View view) { /* Store the original top and bottom bounds of all the cells. */ final int oldTop = view.getTop(); final int oldBottom = view.getBottom(); final HashMap<View, int[]> oldCoordinates = new HashMap<View, int[]>(); int childCount = getChildCount(); for (int i = 0; i < childCount; i++) { View v = getChildAt(i); ViewCompat.setHasTransientState(v, true); oldCoordinates.put(v, new int[] { v.getTop(), v.getBottom() }); } /* Update the layout so the extra content becomes visible. */ final View expandingLayout = view.findViewById(R.id.expanding_layout); expandingLayout.setVisibility(View.VISIBLE); /* * Add an onPreDraw Listener to the listview. onPreDraw will get invoked * after onLayout and onMeasure have run but before anything has been * drawn. This means that the final post layout properties for all the * items have already been determined, but still have not been rendered * onto the screen. */ final ViewTreeObserver observer = getViewTreeObserver(); observer.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() { @Override public boolean onPreDraw() { /* Determine if this is the first or second pass. */ if (!mShouldRemoveObserver) { mShouldRemoveObserver = true; /* * Calculate what the parameters should be for * setSelectionFromTop. The ListView must be offset in a * way, such that after the animation takes place, all the * cells that remain visible are rendered completely by the * ListView. */ int newTop = view.getTop(); int newBottom = view.getBottom(); int newHeight = newBottom - newTop; int oldHeight = oldBottom - oldTop; int delta = newHeight - oldHeight; mTranslate = getTopAndBottomTranslations(oldTop, oldBottom, delta, true); int currentTop = view.getTop(); int futureTop = oldTop - mTranslate[0]; int firstChildStartTop = getChildAt(0).getTop(); int firstVisiblePosition = getFirstVisiblePosition(); int deltaTop = currentTop - futureTop; int i; int childCount = getChildCount(); for (i = 0; i < childCount; i++) { View v = getChildAt(i); int height = v.getBottom() - Math.max(0, v.getTop()); if (deltaTop - height > 0) { firstVisiblePosition++; deltaTop -= height; } else { break; } } if (i > 0) { firstChildStartTop = 0; } setSelectionFromTop(firstVisiblePosition, firstChildStartTop - deltaTop); /* * Request another layout to update the layout parameters of * the cells. */ requestLayout(); /* * Return false such that the ListView does not redraw its * contents on this layout but only updates all the * parameters associated with its children. */ return false; } /* * Remove the predraw listener so this method does not keep * getting called. */ mShouldRemoveObserver = false; observer.removeOnPreDrawListener(this); int yTranslateTop = mTranslate[0]; int yTranslateBottom = mTranslate[1]; ArrayList<Animator> animations = new ArrayList<Animator>(); int index = indexOfChild(view); /* * Loop through all the views that were on the screen before the * cell was expanded. Some cells will still be children of the * ListView while others will not. The cells that remain * children of the ListView simply have their bounds animated * appropriately. The cells that are no longer children of the * ListView also have their bounds animated, but must also be * added to a list of views which will be drawn in dispatchDraw. */ for (View v : oldCoordinates.keySet()) { int[] old = oldCoordinates.get(v); v.setTop(old[0]); v.setBottom(old[1]); if (v.getParent() == null) { mViewsToDraw.add(v); int delta = old[0] < oldTop ? -yTranslateTop : yTranslateBottom; animations.add(getAnimation(v, delta, delta)); } else { int i = indexOfChild(v); if (v != view) { int delta = i > index ? yTranslateBottom : -yTranslateTop; animations.add(getAnimation(v, delta, delta)); } ViewCompat.setHasTransientState(v, false); } } /* Adds animation for expanding the cell that was clicked. */ animations.add(getAnimation(view, -yTranslateTop, yTranslateBottom)); /* Adds an animation for fading in the extra content. */ animations.add(ObjectAnimator.ofFloat(view.findViewById(R.id.expanding_layout), View.ALPHA, 0, 1)); /* Disabled the ListView for the duration of the animation. */ setEnabled(false); setClickable(false); /* * Play all the animations created above together at the same * time. */ AnimatorSet s = new AnimatorSet(); s.playTogether(animations); s.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animation) { viewObject.setExpanded(true); setEnabled(true); setClickable(true); if (mViewsToDraw.size() > 0) { for (View v : mViewsToDraw) { ViewCompat.setHasTransientState(v, false); } } mViewsToDraw.clear(); } }); s.start(); return true; } }); }