Android Open Source - Android-ActionBarSherlock-FragmentTabHost-Tutorial Int Keyframe Set






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License

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Apache License

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Java Source Code

/*
 * Copyright (C) 2010 The Android Open Source Project
 */*from  ww  w. j  av a 2s  .  c o  m*/
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.actionbarsherlock.internal.nineoldandroids.animation;

import java.util.ArrayList;
import android.view.animation.Interpolator;

import com.actionbarsherlock.internal.nineoldandroids.animation.Keyframe.IntKeyframe;

/**
 * This class holds a collection of IntKeyframe objects and is called by ValueAnimator to calculate
 * values between those keyframes for a given animation. The class internal to the animation
 * package because it is an implementation detail of how Keyframes are stored and used.
 *
 * <p>This type-specific subclass of KeyframeSet, along with the other type-specific subclass for
 * float, exists to speed up the getValue() method when there is no custom
 * TypeEvaluator set for the animation, so that values can be calculated without autoboxing to the
 * Object equivalents of these primitive types.</p>
 */
@SuppressWarnings("unchecked")
class IntKeyframeSet extends KeyframeSet {
    private int firstValue;
    private int lastValue;
    private int deltaValue;
    private boolean firstTime = true;

    public IntKeyframeSet(IntKeyframe... keyframes) {
        super(keyframes);
    }

    @Override
    public Object getValue(float fraction) {
        return getIntValue(fraction);
    }

    @Override
    public IntKeyframeSet clone() {
        ArrayList<Keyframe> keyframes = mKeyframes;
        int numKeyframes = mKeyframes.size();
        IntKeyframe[] newKeyframes = new IntKeyframe[numKeyframes];
        for (int i = 0; i < numKeyframes; ++i) {
            newKeyframes[i] = (IntKeyframe) keyframes.get(i).clone();
        }
        IntKeyframeSet newSet = new IntKeyframeSet(newKeyframes);
        return newSet;
    }

    public int getIntValue(float fraction) {
        if (mNumKeyframes == 2) {
            if (firstTime) {
                firstTime = false;
                firstValue = ((IntKeyframe) mKeyframes.get(0)).getIntValue();
                lastValue = ((IntKeyframe) mKeyframes.get(1)).getIntValue();
                deltaValue = lastValue - firstValue;
            }
            if (mInterpolator != null) {
                fraction = mInterpolator.getInterpolation(fraction);
            }
            if (mEvaluator == null) {
                return firstValue + (int)(fraction * deltaValue);
            } else {
                return ((Number)mEvaluator.evaluate(fraction, firstValue, lastValue)).intValue();
            }
        }
        if (fraction <= 0f) {
            final IntKeyframe prevKeyframe = (IntKeyframe) mKeyframes.get(0);
            final IntKeyframe nextKeyframe = (IntKeyframe) mKeyframes.get(1);
            int prevValue = prevKeyframe.getIntValue();
            int nextValue = nextKeyframe.getIntValue();
            float prevFraction = prevKeyframe.getFraction();
            float nextFraction = nextKeyframe.getFraction();
            final /*Time*/Interpolator interpolator = nextKeyframe.getInterpolator();
            if (interpolator != null) {
                fraction = interpolator.getInterpolation(fraction);
            }
            float intervalFraction = (fraction - prevFraction) / (nextFraction - prevFraction);
            return mEvaluator == null ?
                    prevValue + (int)(intervalFraction * (nextValue - prevValue)) :
                    ((Number)mEvaluator.evaluate(intervalFraction, prevValue, nextValue)).
                            intValue();
        } else if (fraction >= 1f) {
            final IntKeyframe prevKeyframe = (IntKeyframe) mKeyframes.get(mNumKeyframes - 2);
            final IntKeyframe nextKeyframe = (IntKeyframe) mKeyframes.get(mNumKeyframes - 1);
            int prevValue = prevKeyframe.getIntValue();
            int nextValue = nextKeyframe.getIntValue();
            float prevFraction = prevKeyframe.getFraction();
            float nextFraction = nextKeyframe.getFraction();
            final /*Time*/Interpolator interpolator = nextKeyframe.getInterpolator();
            if (interpolator != null) {
                fraction = interpolator.getInterpolation(fraction);
            }
            float intervalFraction = (fraction - prevFraction) / (nextFraction - prevFraction);
            return mEvaluator == null ?
                    prevValue + (int)(intervalFraction * (nextValue - prevValue)) :
                    ((Number)mEvaluator.evaluate(intervalFraction, prevValue, nextValue)).intValue();
        }
        IntKeyframe prevKeyframe = (IntKeyframe) mKeyframes.get(0);
        for (int i = 1; i < mNumKeyframes; ++i) {
            IntKeyframe nextKeyframe = (IntKeyframe) mKeyframes.get(i);
            if (fraction < nextKeyframe.getFraction()) {
                final /*Time*/Interpolator interpolator = nextKeyframe.getInterpolator();
                if (interpolator != null) {
                    fraction = interpolator.getInterpolation(fraction);
                }
                float intervalFraction = (fraction - prevKeyframe.getFraction()) /
                    (nextKeyframe.getFraction() - prevKeyframe.getFraction());
                int prevValue = prevKeyframe.getIntValue();
                int nextValue = nextKeyframe.getIntValue();
                return mEvaluator == null ?
                        prevValue + (int)(intervalFraction * (nextValue - prevValue)) :
                        ((Number)mEvaluator.evaluate(intervalFraction, prevValue, nextValue)).
                                intValue();
            }
            prevKeyframe = nextKeyframe;
        }
        // shouldn't get here
        return ((Number)mKeyframes.get(mNumKeyframes - 1).getValue()).intValue();
    }

}




Java Source Code List

android.support.v4.app._ActionBarSherlockTrojanHorse.java
com.actionbarsherlock.ActionBarSherlock.java
com.actionbarsherlock.app.ActionBar.java
com.actionbarsherlock.app.SherlockActivity.java
com.actionbarsherlock.app.SherlockDialogFragment.java
com.actionbarsherlock.app.SherlockExpandableListActivity.java
com.actionbarsherlock.app.SherlockFragmentActivity.java
com.actionbarsherlock.app.SherlockFragment.java
com.actionbarsherlock.app.SherlockListActivity.java
com.actionbarsherlock.app.SherlockListFragment.java
com.actionbarsherlock.app.SherlockPreferenceActivity.java
com.actionbarsherlock.internal.ActionBarSherlockCompat.java
com.actionbarsherlock.internal.ActionBarSherlockNative.java
com.actionbarsherlock.internal.ResourcesCompat.java
com.actionbarsherlock.internal.app.ActionBarImpl.java
com.actionbarsherlock.internal.app.ActionBarWrapper.java
com.actionbarsherlock.internal.nineoldandroids.animation.AnimatorListenerAdapter.java
com.actionbarsherlock.internal.nineoldandroids.animation.AnimatorSet.java
com.actionbarsherlock.internal.nineoldandroids.animation.Animator.java
com.actionbarsherlock.internal.nineoldandroids.animation.FloatEvaluator.java
com.actionbarsherlock.internal.nineoldandroids.animation.FloatKeyframeSet.java
com.actionbarsherlock.internal.nineoldandroids.animation.IntEvaluator.java
com.actionbarsherlock.internal.nineoldandroids.animation.IntKeyframeSet.java
com.actionbarsherlock.internal.nineoldandroids.animation.KeyframeSet.java
com.actionbarsherlock.internal.nineoldandroids.animation.Keyframe.java
com.actionbarsherlock.internal.nineoldandroids.animation.ObjectAnimator.java
com.actionbarsherlock.internal.nineoldandroids.animation.PropertyValuesHolder.java
com.actionbarsherlock.internal.nineoldandroids.animation.TypeEvaluator.java
com.actionbarsherlock.internal.nineoldandroids.animation.ValueAnimator.java
com.actionbarsherlock.internal.nineoldandroids.view.NineViewGroup.java
com.actionbarsherlock.internal.nineoldandroids.view.animation.AnimatorProxy.java
com.actionbarsherlock.internal.nineoldandroids.widget.NineFrameLayout.java
com.actionbarsherlock.internal.nineoldandroids.widget.NineHorizontalScrollView.java
com.actionbarsherlock.internal.nineoldandroids.widget.NineLinearLayout.java
com.actionbarsherlock.internal.view.ActionProviderWrapper.java
com.actionbarsherlock.internal.view.StandaloneActionMode.java
com.actionbarsherlock.internal.view.View_HasStateListenerSupport.java
com.actionbarsherlock.internal.view.View_OnAttachStateChangeListener.java
com.actionbarsherlock.internal.view.menu.ActionMenuItemView.java
com.actionbarsherlock.internal.view.menu.ActionMenuItem.java
com.actionbarsherlock.internal.view.menu.ActionMenuPresenter.java
com.actionbarsherlock.internal.view.menu.ActionMenuView.java
com.actionbarsherlock.internal.view.menu.ActionMenu.java
com.actionbarsherlock.internal.view.menu.BaseMenuPresenter.java
com.actionbarsherlock.internal.view.menu.ListMenuItemView.java
com.actionbarsherlock.internal.view.menu.MenuBuilder.java
com.actionbarsherlock.internal.view.menu.MenuItemImpl.java
com.actionbarsherlock.internal.view.menu.MenuItemWrapper.java
com.actionbarsherlock.internal.view.menu.MenuPopupHelper.java
com.actionbarsherlock.internal.view.menu.MenuPresenter.java
com.actionbarsherlock.internal.view.menu.MenuView.java
com.actionbarsherlock.internal.view.menu.MenuWrapper.java
com.actionbarsherlock.internal.view.menu.SubMenuBuilder.java
com.actionbarsherlock.internal.view.menu.SubMenuWrapper.java
com.actionbarsherlock.internal.widget.AbsActionBarView.java
com.actionbarsherlock.internal.widget.ActionBarContainer.java
com.actionbarsherlock.internal.widget.ActionBarContextView.java
com.actionbarsherlock.internal.widget.ActionBarView.java
com.actionbarsherlock.internal.widget.CapitalizingButton.java
com.actionbarsherlock.internal.widget.CapitalizingTextView.java
com.actionbarsherlock.internal.widget.FakeDialogPhoneWindow.java
com.actionbarsherlock.internal.widget.IcsAbsSpinner.java
com.actionbarsherlock.internal.widget.IcsAdapterView.java
com.actionbarsherlock.internal.widget.IcsLinearLayout.java
com.actionbarsherlock.internal.widget.IcsListPopupWindow.java
com.actionbarsherlock.internal.widget.IcsProgressBar.java
com.actionbarsherlock.internal.widget.IcsSpinner.java
com.actionbarsherlock.internal.widget.IcsView.java
com.actionbarsherlock.internal.widget.ScrollingTabContainerView.java
com.actionbarsherlock.view.ActionMode.java
com.actionbarsherlock.view.ActionProvider.java
com.actionbarsherlock.view.CollapsibleActionView.java
com.actionbarsherlock.view.MenuInflater.java
com.actionbarsherlock.view.MenuItem.java
com.actionbarsherlock.view.Menu.java
com.actionbarsherlock.view.SubMenu.java
com.actionbarsherlock.view.Window.java
com.actionbarsherlock.widget.ActivityChooserModel.java
com.actionbarsherlock.widget.ActivityChooserView.java
com.actionbarsherlock.widget.ShareActionProvider.java
com.androidbegin.absfragtabhost.FragmentTab1.java
com.androidbegin.absfragtabhost.FragmentTab2.java
com.androidbegin.absfragtabhost.FragmentTab3.java
com.androidbegin.absfragtabhost.MainActivity.java