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BatchStepSensor / src / com.example.android.batchstepsensor / cardstream /

CardStreamAnimator.java

       
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        /*
       
       
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        * Copyright 2013 The Android Open Source Project
       
       
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        *
       
       
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        * Licensed under the Apache License, Version 2.0 (the "License");
       
       
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        * you may not use this file except in compliance with the License.
       
       
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        * You may obtain a copy of the License at
       
       
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        *
       
       
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        *     http://www.apache.org/licenses/LICENSE-2.0
       
       
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        *
       
       
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        * Unless required by applicable law or agreed to in writing, software
       
       
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        * distributed under the License is distributed on an "AS IS" BASIS,
       
       
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        * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
       
       
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        * See the License for the specific language governing permissions and
       
       
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        * limitations under the License.
       
       
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        */
       
       
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        package com.example.android.batchstepsensor.cardstream;
       
       
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        import android.animation.ObjectAnimator;
       
       
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        import android.content.Context;
       
       
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        import android.view.View;
       
       
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        /**
       
       
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        * An abstract class which defines animators for CardStreamLinearLayout.
       
       
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        */
       
       
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        abstract class CardStreamAnimator {
       
       
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        protected float mSpeedFactor = 1.f;
       
       
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        /**
       
       
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        * Set speed factor of animations. Higher value means longer duration & slow animation.
       
       
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        *
       
       
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        * @param speedFactor speed type 1: SLOW, 2: NORMAL, 3:FAST
       
       
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        */
       
       
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        public void setSpeedFactor(float speedFactor) {
       
       
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        mSpeedFactor = speedFactor;
       
       
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        }
       
       
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        /**
       
       
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        * Define initial animation of each child which fired when a user rotate a screen.
       
       
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        *
       
       
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        * @param context
       
       
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        * @return ObjectAnimator for initial animation
       
       
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        */
       
       
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        public abstract ObjectAnimator getInitalAnimator(Context context);
       
       
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        /**
       
       
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        * Define disappearing animation of a child which fired when a view is removed programmatically
       
       
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        *
       
       
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        * @param context
       
       
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        * @return ObjectAnimator for disappearing animation
       
       
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        */
       
       
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        public abstract ObjectAnimator getDisappearingAnimator(Context context);
       
       
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        /**
       
       
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        * Define appearing animation of a child which fired when a view is added programmatically
       
       
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        *
       
       
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        * @param context
       
       
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        * @return ObjectAnimator for appearing animation
       
       
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        */
       
       
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        public abstract ObjectAnimator getAppearingAnimator(Context context);
       
       
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        /**
       
       
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        * Define swipe-in (back to the origin position) animation of a child
       
       
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        * which fired when a view is not moved enough to be removed.
       
       
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        *
       
       
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        * @param view   target view
       
       
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        * @param deltaX delta distance by x-axis
       
       
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        * @param deltaY delta distance by y-axis
       
       
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        * @return ObjectAnimator for swipe-in animation
       
       
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        */
       
       
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        public abstract ObjectAnimator getSwipeInAnimator(View view, float deltaX, float deltaY);
       
       
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        /**
       
       
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        * Define swipe-out animation of a child
       
       
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        * which fired when a view is removing by a user swipe action.
       
       
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        *
       
       
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        * @param view   target view
       
       
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        * @param deltaX delta distance by x-axis
       
       
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        * @param deltaY delta distance by y-axis
       
       
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        * @return ObjectAnimator for swipe-out animation
       
       
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        */
       
       
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        public abstract ObjectAnimator getSwipeOutAnimator(View view, float deltaX, float deltaY);
       
       
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        /**
       
       
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        * A simple CardStreamAnimator implementation which is used to turn animations off.
       
       
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        */
       
       
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        public static class EmptyAnimator extends CardStreamAnimator {
       
       
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        @Override
       
       
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        public ObjectAnimator getInitalAnimator(Context context) {
       
       
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        return null;
       
       
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        }
       
       
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        @Override
       
       
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        public ObjectAnimator getDisappearingAnimator(Context context) {
       
       
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        return null;
       
       
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        }
       
       
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        @Override
       
       
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        public ObjectAnimator getAppearingAnimator(Context context) {
       
       
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        return null;
       
       
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        }
       
       
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        @Override
       
       
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        public ObjectAnimator getSwipeInAnimator(View view, float deltaX, float deltaY) {
       
       
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        return null;
       
       
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        }
       
       
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        @Override
       
       
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        public ObjectAnimator getSwipeOutAnimator(View view, float deltaX, float deltaY) {
       
       
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        return null;
       
       
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        }
       
       
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        }
       
       
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        }
       
       
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