Example usage for android.util SparseLongArray keyAt

Introduction

In this page you can find the example usage for android.util SparseLongArray keyAt.

Prototype

public int keyAt(int index) 

Source Link

Document

Given an index in the range 0...size()-1, returns the key from the indexth key-value mapping that this SparseLongArray stores.

Usage

From source file:com.glview.transition.Transition.java

/**
 * This method, essentially a wrapper around all calls to createAnimator for all
 * possible target views, is called with the entire set of start/end
 * values. The implementation in Transition iterates through these lists
 * and calls {@link #createAnimator(ViewGroup, TransitionValues, TransitionValues)}
 * with each set of start/end values on this transition. The
 * TransitionSet subclass overrides this method and delegates it to
 * each of its children in succession./*from ww w .  ja  v a  2s. c om*/
 *
 * @hide
 */
protected void createAnimators(ViewGroup sceneRoot, TransitionValuesMaps startValues,
        TransitionValuesMaps endValues, ArrayList<TransitionValues> startValuesList,
        ArrayList<TransitionValues> endValuesList) {
    if (DBG) {
        Log.d(LOG_TAG, "createAnimators() for " + this);
    }
    ArrayMap<Animator, AnimationInfo> runningAnimators = getRunningAnimators();
    long minStartDelay = Long.MAX_VALUE;
    int minAnimator = mAnimators.size();
    SparseLongArray startDelays = new SparseLongArray();
    int startValuesListCount = startValuesList.size();
    for (int i = 0; i < startValuesListCount; ++i) {
        TransitionValues start = startValuesList.get(i);
        TransitionValues end = endValuesList.get(i);
        if (start != null && !start.targetedTransitions.contains(this)) {
            start = null;
        }
        if (end != null && !end.targetedTransitions.contains(this)) {
            end = null;
        }
        if (start == null && end == null) {
            continue;
        }
        // Only bother trying to animate with values that differ between start/end
        boolean isChanged = start == null || end == null || areValuesChanged(start, end);
        if (isChanged) {
            if (DBG) {
                View view = (end != null) ? end.view : start.view;
                Log.d(LOG_TAG, "  differing start/end values for view " + view);
                if (start == null || end == null) {
                    Log.d(LOG_TAG, "    "
                            + ((start == null) ? "start null, end non-null" : "start non-null, end null"));
                } else {
                    for (String key : start.values.keySet()) {
                        Object startValue = start.values.get(key);
                        Object endValue = end.values.get(key);
                        if (startValue != endValue && !startValue.equals(endValue)) {
                            Log.d(LOG_TAG, "    " + key + ": start(" + startValue + "), end(" + endValue + ")");
                        }
                    }
                }
            }
            // TODO: what to do about targetIds and itemIds?
            Animator animator = createAnimator(sceneRoot, start, end);
            if (animator != null) {
                // Save animation info for future cancellation purposes
                View view = null;
                TransitionValues infoValues = null;
                if (end != null) {
                    view = end.view;
                    String[] properties = getTransitionProperties();
                    if (view != null && properties != null && properties.length > 0) {
                        infoValues = new TransitionValues();
                        infoValues.view = view;
                        TransitionValues newValues = endValues.viewValues.get(view);
                        if (newValues != null) {
                            for (int j = 0; j < properties.length; ++j) {
                                infoValues.values.put(properties[j], newValues.values.get(properties[j]));
                            }
                        }
                        int numExistingAnims = runningAnimators.size();
                        for (int j = 0; j < numExistingAnims; ++j) {
                            Animator anim = runningAnimators.keyAt(j);
                            AnimationInfo info = runningAnimators.get(anim);
                            if (info.values != null && info.view == view
                                    && ((info.name == null && getName() == null)
                                            || info.name.equals(getName()))) {
                                if (info.values.equals(infoValues)) {
                                    // Favor the old animator
                                    animator = null;
                                    break;
                                }
                            }
                        }
                    }
                } else {
                    view = (start != null) ? start.view : null;
                }
                if (animator != null) {
                    if (mPropagation != null) {
                        long delay = mPropagation.getStartDelay(sceneRoot, this, start, end);
                        startDelays.put(mAnimators.size(), delay);
                        minStartDelay = Math.min(delay, minStartDelay);
                    }
                    AnimationInfo info = new AnimationInfo(view, getName(), this, sceneRoot.getWindowId(),
                            infoValues);
                    runningAnimators.put(animator, info);
                    mAnimators.add(animator);
                }
            }
        }
    }
    if (minStartDelay != 0) {
        for (int i = 0; i < startDelays.size(); i++) {
            int index = startDelays.keyAt(i);
            Animator animator = mAnimators.get(index);
            long delay = startDelays.valueAt(i) - minStartDelay + animator.getStartDelay();
            animator.setStartDelay(delay);
        }
    }
}

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