--- /dev/null
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * 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 android.util.Log;
+//import android.util.Property;
+
+//import java.lang.reflect.Method;
+import java.util.ArrayList;
+
+/**
+ * This subclass of {@link ValueAnimator} provides support for animating properties on target objects.
+ * The constructors of this class take parameters to define the target object that will be animated
+ * as well as the name of the property that will be animated. Appropriate set/get functions
+ * are then determined internally and the animation will call these functions as necessary to
+ * animate the property.
+ *
+ * @see #setPropertyName(String)
+ *
+ */
+@SuppressWarnings("rawtypes")
+public final class ObjectAnimator extends ValueAnimator {
+ private static final boolean DBG = false;
+
+ // The target object on which the property exists, set in the constructor
+ private Object mTarget;
+
+ private String mPropertyName;
+
+ //private Property mProperty;
+
+ /**
+ * Sets the name of the property that will be animated. This name is used to derive
+ * a setter function that will be called to set animated values.
+ * For example, a property name of <code>foo</code> will result
+ * in a call to the function <code>setFoo()</code> on the target object. If either
+ * <code>valueFrom</code> or <code>valueTo</code> is null, then a getter function will
+ * also be derived and called.
+ *
+ * <p>For best performance of the mechanism that calls the setter function determined by the
+ * name of the property being animated, use <code>float</code> or <code>int</code> typed values,
+ * and make the setter function for those properties have a <code>void</code> return value. This
+ * will cause the code to take an optimized path for these constrained circumstances. Other
+ * property types and return types will work, but will have more overhead in processing
+ * the requests due to normal reflection mechanisms.</p>
+ *
+ * <p>Note that the setter function derived from this property name
+ * must take the same parameter type as the
+ * <code>valueFrom</code> and <code>valueTo</code> properties, otherwise the call to
+ * the setter function will fail.</p>
+ *
+ * <p>If this ObjectAnimator has been set up to animate several properties together,
+ * using more than one PropertyValuesHolder objects, then setting the propertyName simply
+ * sets the propertyName in the first of those PropertyValuesHolder objects.</p>
+ *
+ * @param propertyName The name of the property being animated. Should not be null.
+ */
+ public void setPropertyName(String propertyName) {
+ // mValues could be null if this is being constructed piecemeal. Just record the
+ // propertyName to be used later when setValues() is called if so.
+ if (mValues != null) {
+ PropertyValuesHolder valuesHolder = mValues[0];
+ String oldName = valuesHolder.getPropertyName();
+ valuesHolder.setPropertyName(propertyName);
+ mValuesMap.remove(oldName);
+ mValuesMap.put(propertyName, valuesHolder);
+ }
+ mPropertyName = propertyName;
+ // New property/values/target should cause re-initialization prior to starting
+ mInitialized = false;
+ }
+
+ /**
+ * Sets the property that will be animated. Property objects will take precedence over
+ * properties specified by the {@link #setPropertyName(String)} method. Animations should
+ * be set up to use one or the other, not both.
+ *
+ * @param property The property being animated. Should not be null.
+ */
+ //public void setProperty(Property property) {
+ // // mValues could be null if this is being constructed piecemeal. Just record the
+ // // propertyName to be used later when setValues() is called if so.
+ // if (mValues != null) {
+ // PropertyValuesHolder valuesHolder = mValues[0];
+ // String oldName = valuesHolder.getPropertyName();
+ // valuesHolder.setProperty(property);
+ // mValuesMap.remove(oldName);
+ // mValuesMap.put(mPropertyName, valuesHolder);
+ // }
+ // if (mProperty != null) {
+ // mPropertyName = property.getName();
+ // }
+ // mProperty = property;
+ // // New property/values/target should cause re-initialization prior to starting
+ // mInitialized = false;
+ //}
+
+ /**
+ * Gets the name of the property that will be animated. This name will be used to derive
+ * a setter function that will be called to set animated values.
+ * For example, a property name of <code>foo</code> will result
+ * in a call to the function <code>setFoo()</code> on the target object. If either
+ * <code>valueFrom</code> or <code>valueTo</code> is null, then a getter function will
+ * also be derived and called.
+ */
+ public String getPropertyName() {
+ return mPropertyName;
+ }
+
+ /**
+ * Creates a new ObjectAnimator object. This default constructor is primarily for
+ * use internally; the other constructors which take parameters are more generally
+ * useful.
+ */
+ public ObjectAnimator() {
+ }
+
+ /**
+ * Private utility constructor that initializes the target object and name of the
+ * property being animated.
+ *
+ * @param target The object whose property is to be animated. This object should
+ * have a public method on it called <code>setName()</code>, where <code>name</code> is
+ * the value of the <code>propertyName</code> parameter.
+ * @param propertyName The name of the property being animated.
+ */
+ private ObjectAnimator(Object target, String propertyName) {
+ mTarget = target;
+ setPropertyName(propertyName);
+ }
+
+ /**
+ * Private utility constructor that initializes the target object and property being animated.
+ *
+ * @param target The object whose property is to be animated.
+ * @param property The property being animated.
+ */
+ //private <T> ObjectAnimator(T target, Property<T, ?> property) {
+ // mTarget = target;
+ // setProperty(property);
+ //}
+
+ /**
+ * Constructs and returns an ObjectAnimator that animates between int values. A single
+ * value implies that that value is the one being animated to. Two values imply a starting
+ * and ending values. More than two values imply a starting value, values to animate through
+ * along the way, and an ending value (these values will be distributed evenly across
+ * the duration of the animation).
+ *
+ * @param target The object whose property is to be animated. This object should
+ * have a public method on it called <code>setName()</code>, where <code>name</code> is
+ * the value of the <code>propertyName</code> parameter.
+ * @param propertyName The name of the property being animated.
+ * @param values A set of values that the animation will animate between over time.
+ * @return An ObjectAnimator object that is set up to animate between the given values.
+ */
+ public static ObjectAnimator ofInt(Object target, String propertyName, int... values) {
+ ObjectAnimator anim = new ObjectAnimator(target, propertyName);
+ anim.setIntValues(values);
+ return anim;
+ }
+
+ /**
+ * Constructs and returns an ObjectAnimator that animates between int values. A single
+ * value implies that that value is the one being animated to. Two values imply a starting
+ * and ending values. More than two values imply a starting value, values to animate through
+ * along the way, and an ending value (these values will be distributed evenly across
+ * the duration of the animation).
+ *
+ * @param target The object whose property is to be animated.
+ * @param property The property being animated.
+ * @param values A set of values that the animation will animate between over time.
+ * @return An ObjectAnimator object that is set up to animate between the given values.
+ */
+ //public static <T> ObjectAnimator ofInt(T target, Property<T, Integer> property, int... values) {
+ // ObjectAnimator anim = new ObjectAnimator(target, property);
+ // anim.setIntValues(values);
+ // return anim;
+ //}
+
+ /**
+ * Constructs and returns an ObjectAnimator that animates between float values. A single
+ * value implies that that value is the one being animated to. Two values imply a starting
+ * and ending values. More than two values imply a starting value, values to animate through
+ * along the way, and an ending value (these values will be distributed evenly across
+ * the duration of the animation).
+ *
+ * @param target The object whose property is to be animated. This object should
+ * have a public method on it called <code>setName()</code>, where <code>name</code> is
+ * the value of the <code>propertyName</code> parameter.
+ * @param propertyName The name of the property being animated.
+ * @param values A set of values that the animation will animate between over time.
+ * @return An ObjectAnimator object that is set up to animate between the given values.
+ */
+ public static ObjectAnimator ofFloat(Object target, String propertyName, float... values) {
+ ObjectAnimator anim = new ObjectAnimator(target, propertyName);
+ anim.setFloatValues(values);
+ return anim;
+ }
+
+ /**
+ * Constructs and returns an ObjectAnimator that animates between float values. A single
+ * value implies that that value is the one being animated to. Two values imply a starting
+ * and ending values. More than two values imply a starting value, values to animate through
+ * along the way, and an ending value (these values will be distributed evenly across
+ * the duration of the animation).
+ *
+ * @param target The object whose property is to be animated.
+ * @param property The property being animated.
+ * @param values A set of values that the animation will animate between over time.
+ * @return An ObjectAnimator object that is set up to animate between the given values.
+ */
+ //public static <T> ObjectAnimator ofFloat(T target, Property<T, Float> property,
+ // float... values) {
+ // ObjectAnimator anim = new ObjectAnimator(target, property);
+ // anim.setFloatValues(values);
+ // return anim;
+ //}
+
+ /**
+ * Constructs and returns an ObjectAnimator that animates between Object values. A single
+ * value implies that that value is the one being animated to. Two values imply a starting
+ * and ending values. More than two values imply a starting value, values to animate through
+ * along the way, and an ending value (these values will be distributed evenly across
+ * the duration of the animation).
+ *
+ * @param target The object whose property is to be animated. This object should
+ * have a public method on it called <code>setName()</code>, where <code>name</code> is
+ * the value of the <code>propertyName</code> parameter.
+ * @param propertyName The name of the property being animated.
+ * @param evaluator A TypeEvaluator that will be called on each animation frame to
+ * provide the necessary interpolation between the Object values to derive the animated
+ * value.
+ * @param values A set of values that the animation will animate between over time.
+ * @return An ObjectAnimator object that is set up to animate between the given values.
+ */
+ public static ObjectAnimator ofObject(Object target, String propertyName,
+ TypeEvaluator evaluator, Object... values) {
+ ObjectAnimator anim = new ObjectAnimator(target, propertyName);
+ anim.setObjectValues(values);
+ anim.setEvaluator(evaluator);
+ return anim;
+ }
+
+ /**
+ * Constructs and returns an ObjectAnimator that animates between Object values. A single
+ * value implies that that value is the one being animated to. Two values imply a starting
+ * and ending values. More than two values imply a starting value, values to animate through
+ * along the way, and an ending value (these values will be distributed evenly across
+ * the duration of the animation).
+ *
+ * @param target The object whose property is to be animated.
+ * @param property The property being animated.
+ * @param evaluator A TypeEvaluator that will be called on each animation frame to
+ * provide the necessary interpolation between the Object values to derive the animated
+ * value.
+ * @param values A set of values that the animation will animate between over time.
+ * @return An ObjectAnimator object that is set up to animate between the given values.
+ */
+ //public static <T, V> ObjectAnimator ofObject(T target, Property<T, V> property,
+ // TypeEvaluator<V> evaluator, V... values) {
+ // ObjectAnimator anim = new ObjectAnimator(target, property);
+ // anim.setObjectValues(values);
+ // anim.setEvaluator(evaluator);
+ // return anim;
+ //}
+
+ /**
+ * Constructs and returns an ObjectAnimator that animates between the sets of values specified
+ * in <code>PropertyValueHolder</code> objects. This variant should be used when animating
+ * several properties at once with the same ObjectAnimator, since PropertyValuesHolder allows
+ * you to associate a set of animation values with a property name.
+ *
+ * @param target The object whose property is to be animated. Depending on how the
+ * PropertyValuesObjects were constructed, the target object should either have the {@link
+ * android.util.Property} objects used to construct the PropertyValuesHolder objects or (if the
+ * PropertyValuesHOlder objects were created with property names) the target object should have
+ * public methods on it called <code>setName()</code>, where <code>name</code> is the name of
+ * the property passed in as the <code>propertyName</code> parameter for each of the
+ * PropertyValuesHolder objects.
+ * @param values A set of PropertyValuesHolder objects whose values will be animated between
+ * over time.
+ * @return An ObjectAnimator object that is set up to animate between the given values.
+ */
+ public static ObjectAnimator ofPropertyValuesHolder(Object target,
+ PropertyValuesHolder... values) {
+ ObjectAnimator anim = new ObjectAnimator();
+ anim.mTarget = target;
+ anim.setValues(values);
+ return anim;
+ }
+
+ @Override
+ public void setIntValues(int... values) {
+ if (mValues == null || mValues.length == 0) {
+ // No values yet - this animator is being constructed piecemeal. Init the values with
+ // whatever the current propertyName is
+ //if (mProperty != null) {
+ // setValues(PropertyValuesHolder.ofInt(mProperty, values));
+ //} else {
+ setValues(PropertyValuesHolder.ofInt(mPropertyName, values));
+ //}
+ } else {
+ super.setIntValues(values);
+ }
+ }
+
+ @Override
+ public void setFloatValues(float... values) {
+ if (mValues == null || mValues.length == 0) {
+ // No values yet - this animator is being constructed piecemeal. Init the values with
+ // whatever the current propertyName is
+ //if (mProperty != null) {
+ // setValues(PropertyValuesHolder.ofFloat(mProperty, values));
+ //} else {
+ setValues(PropertyValuesHolder.ofFloat(mPropertyName, values));
+ //}
+ } else {
+ super.setFloatValues(values);
+ }
+ }
+
+ @Override
+ public void setObjectValues(Object... values) {
+ if (mValues == null || mValues.length == 0) {
+ // No values yet - this animator is being constructed piecemeal. Init the values with
+ // whatever the current propertyName is
+ //if (mProperty != null) {
+ // setValues(PropertyValuesHolder.ofObject(mProperty, (TypeEvaluator)null, values));
+ //} else {
+ setValues(PropertyValuesHolder.ofObject(mPropertyName, (TypeEvaluator)null, values));
+ //}
+ } else {
+ super.setObjectValues(values);
+ }
+ }
+
+ @Override
+ public void start() {
+ if (DBG) {
+ Log.d("ObjectAnimator", "Anim target, duration: " + mTarget + ", " + getDuration());
+ for (int i = 0; i < mValues.length; ++i) {
+ PropertyValuesHolder pvh = mValues[i];
+ ArrayList<Keyframe> keyframes = pvh.mKeyframeSet.mKeyframes;
+ Log.d("ObjectAnimator", " Values[" + i + "]: " +
+ pvh.getPropertyName() + ", " + keyframes.get(0).getValue() + ", " +
+ keyframes.get(pvh.mKeyframeSet.mNumKeyframes - 1).getValue());
+ }
+ }
+ super.start();
+ }
+
+ /**
+ * This function is called immediately before processing the first animation
+ * frame of an animation. If there is a nonzero <code>startDelay</code>, the
+ * function is called after that delay ends.
+ * It takes care of the final initialization steps for the
+ * animation. This includes setting mEvaluator, if the user has not yet
+ * set it up, and the setter/getter methods, if the user did not supply
+ * them.
+ *
+ * <p>Overriders of this method should call the superclass method to cause
+ * internal mechanisms to be set up correctly.</p>
+ */
+ @Override
+ void initAnimation() {
+ if (!mInitialized) {
+ // mValueType may change due to setter/getter setup; do this before calling super.init(),
+ // which uses mValueType to set up the default type evaluator.
+ int numValues = mValues.length;
+ for (int i = 0; i < numValues; ++i) {
+ mValues[i].setupSetterAndGetter(mTarget);
+ }
+ super.initAnimation();
+ }
+ }
+
+ /**
+ * Sets the length of the animation. The default duration is 300 milliseconds.
+ *
+ * @param duration The length of the animation, in milliseconds.
+ * @return ObjectAnimator The object called with setDuration(). This return
+ * value makes it easier to compose statements together that construct and then set the
+ * duration, as in
+ * <code>ObjectAnimator.ofInt(target, propertyName, 0, 10).setDuration(500).start()</code>.
+ */
+ @Override
+ public ObjectAnimator setDuration(long duration) {
+ super.setDuration(duration);
+ return this;
+ }
+
+
+ /**
+ * The target object whose property will be animated by this animation
+ *
+ * @return The object being animated
+ */
+ public Object getTarget() {
+ return mTarget;
+ }
+
+ /**
+ * Sets the target object whose property will be animated by this animation
+ *
+ * @param target The object being animated
+ */
+ @Override
+ public void setTarget(Object target) {
+ if (mTarget != target) {
+ final Object oldTarget = mTarget;
+ mTarget = target;
+ if (oldTarget != null && target != null && oldTarget.getClass() == target.getClass()) {
+ return;
+ }
+ // New target type should cause re-initialization prior to starting
+ mInitialized = false;
+ }
+ }
+
+ @Override
+ public void setupStartValues() {
+ initAnimation();
+ int numValues = mValues.length;
+ for (int i = 0; i < numValues; ++i) {
+ mValues[i].setupStartValue(mTarget);
+ }
+ }
+
+ @Override
+ public void setupEndValues() {
+ initAnimation();
+ int numValues = mValues.length;
+ for (int i = 0; i < numValues; ++i) {
+ mValues[i].setupEndValue(mTarget);
+ }
+ }
+
+ /**
+ * This method is called with the elapsed fraction of the animation during every
+ * animation frame. This function turns the elapsed fraction into an interpolated fraction
+ * and then into an animated value (from the evaluator. The function is called mostly during
+ * animation updates, but it is also called when the <code>end()</code>
+ * function is called, to set the final value on the property.
+ *
+ * <p>Overrides of this method must call the superclass to perform the calculation
+ * of the animated value.</p>
+ *
+ * @param fraction The elapsed fraction of the animation.
+ */
+ @Override
+ void animateValue(float fraction) {
+ super.animateValue(fraction);
+ int numValues = mValues.length;
+ for (int i = 0; i < numValues; ++i) {
+ mValues[i].setAnimatedValue(mTarget);
+ }
+ }
+
+ @Override
+ public ObjectAnimator clone() {
+ final ObjectAnimator anim = (ObjectAnimator) super.clone();
+ return anim;
+ }
+
+ @Override
+ public String toString() {
+ String returnVal = "ObjectAnimator@" + Integer.toHexString(hashCode()) + ", target " +
+ mTarget;
+ if (mValues != null) {
+ for (int i = 0; i < mValues.length; ++i) {
+ returnVal += "\n " + mValues[i].toString();
+ }
+ }
+ return returnVal;
+ }
+}
projects / debian / openrocket / blobdiff