Android Open Source - Android-ActionBarSherlock-FragmentTabHost-Tutorial Float Evaluator






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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  w  ww .j a va  2  s  .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;

/**
 * This evaluator can be used to perform type interpolation between <code>float</code> values.
 */
public class FloatEvaluator implements TypeEvaluator<Number> {

    /**
     * This function returns the result of linearly interpolating the start and end values, with
     * <code>fraction</code> representing the proportion between the start and end values. The
     * calculation is a simple parametric calculation: <code>result = x0 + t * (v1 - v0)</code>,
     * where <code>x0</code> is <code>startValue</code>, <code>x1</code> is <code>endValue</code>,
     * and <code>t</code> is <code>fraction</code>.
     *
     * @param fraction   The fraction from the starting to the ending values
     * @param startValue The start value; should be of type <code>float</code> or
     *                   <code>Float</code>
     * @param endValue   The end value; should be of type <code>float</code> or <code>Float</code>
     * @return A linear interpolation between the start and end values, given the
     *         <code>fraction</code> parameter.
     */
    public Float evaluate(float fraction, Number startValue, Number endValue) {
        float startFloat = startValue.floatValue();
        return startFloat + fraction * (endValue.floatValue() - startFloat);
    }
}




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