Android uses detailed animation

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This article describes the Androidpart of the development of knowledge by reading this article, you will reap the following:

1. Frame animation uses detailed
2. Tween uses detailed
3. Property animation uses detailed

Animation is often used in Android development, good animation can achieve a multiplier effect.
Animation Category:

1. Frame animation
   
2. Tween
3. Property animation

1. frame animation uses detailed

• a. When the xml declaration and long frame animation

<?xml version="1.0" encoding="utf-8"?>
<animation-list xmlns:android="http://schemas.android.com/apk/res/android" >

    <item
        android:drawable="@drawable/bird0001_risk"
        android:duration="80"/>
    <item
        android:drawable="@drawable/bird0002_risk"
        android:duration="80"/>
    <item
        android:drawable="@drawable/bird0003_risk"
        android:duration="80"/>
    <item
        android:drawable="@drawable/bird0004_risk"
        android:duration="80"/>
    <item
        android:drawable="@drawable/bird0005_risk"
        android:duration="80"/>
    <item
        android:drawable="@drawable/bird0006_risk"
        android:duration="80"/>
    <item
        android:drawable="@drawable/bird0007_risk"
        android:duration="80"/>
    <item
        android:drawable="@drawable/bird0008_risk"
        android:duration="80"/>
    <item
        android:drawable="@drawable/bird0009_risk"
        android:duration="80"/>
    <item
        android:drawable="@drawable/bird0010_risk"
        android:duration="80"/>
    <item
        android:drawable="@drawable/bird0011_risk"
        android:duration="80"/>
    <item
        android:drawable="@drawable/bird0012_risk"
        android:duration="80"/>
    <item
        android:drawable="@drawable/bird0013_risk"
        android:duration="80"/>
    <item
        android:drawable="@drawable/bird0014_risk"
        android:duration="80"/>
    <item
        android:drawable="@drawable/bird0015_risk"
        android:duration="80"/>
    <item
        android:drawable="@drawable/bird0016_risk"
        android:duration="80"/>
    <item
        android:drawable="@drawable/bird0017_risk"
        android:duration="80"/>
    <item
        android:drawable="@drawable/bird0018_risk"
        android:duration="80"/>
    <item
        android:drawable="@drawable/bird0019_risk"
        android:duration="80"/>
    <item
        android:drawable="@drawable/bird0020_risk"
        android:duration="80"/>

</animation-list>

• b. a reference frame of the animation defined in the control xml file

    <ImageView
        android:id="@+id/img"
        android:layout_width="80dp"
        android:layout_height="80dp"
        android:layout_gravity="center_horizontal"
        android:background="@anim/frame_animation" />

2. Detailed between motion tweens use

Animation is one of the popular animated Android tween, a property animation relatively speaking, a click event tween animation lunch followed by a change of position changes. Follow-up will gradually be replaced property animation.

Tween Category:

1. Transparent animated AlphaAnimation
2. Rotation animation ScaleAnimation
3. Zoom animation RotateAnimation
4. Panning animation TranslateAnimation
5. Animation collection AnimationSet
6. XML achieve animation effects

1. transparent animation

• AlphaAnimation

 /**
         * 透明度动画AlphaAnimation 从不透明到完全透明
         * **/
        // 起始透明度 到结束透明度 不透明到透明（1f-0f）
        AlphaAnimation alphaAnimation = new AlphaAnimation(0.0f, 1.0f);
        // 动画执行时间
        alphaAnimation.setDuration(4000);
        // 设置重复次数
        alphaAnimation.setRepeatCount(2);
        // 重复模式
        alphaAnimation.setRepeatMode(Animation.RESTART);
        // alphaAnimation.setRepeatMode(Animation.REVERSE);
        // 保持结束时候的状态
        alphaAnimation.setFillAfter(true);
        mImageView.startAnimation(alphaAnimation);

2. rotation animation

• RotateAnimation

   /**
         * 旋转动画RotateAnimation,旋转360度
         **/

        RotateAnimation rotateAnimation = new RotateAnimation(0, 360);
        rotateAnimation.setDuration(2000);
        rotateAnimation.setRepeatCount(2);
        mImageView.startAnimation(rotateAnimation);

3. zoom animation

• ScaleAnimation

        /**
         * 缩放动画 ScaleAnimation使用方法 缩放2倍
         * */
        ScaleAnimation scaleAnimation = new ScaleAnimation(1, 2, 1, 2);
        scaleAnimation.setDuration(2000);
        scaleAnimation.setRepeatCount(2);
        scaleAnimation.setRepeatMode(Animation.RESTART);
        mImageView.startAnimation(scaleAnimation);

4. panning animation

• TranslateAnimation

    /***
         * 平移动画TranslateAnimation 从x,y 轴 从（0,0）平移到（300,200） *
         **/
        TranslateAnimation translateAnimation = new TranslateAnimation(0,
                300.f, 0, 200.f);
        translateAnimation.setDuration(2000);
        translateAnimation.setRepeatCount(2);
        translateAnimation.setRepeatMode(Animation.RESTART);
        mImageView.startAnimation(translateAnimation);

5. animation collection

• AnimationSet

   /***
         * 动画集合使用效果如下：
         * ***/
        AnimationSet sets = new AnimationSet(true);

        AlphaAnimation alphaAnimation1 = new AlphaAnimation(0.0f, 1.0f);
        TranslateAnimation translateAnimation1 = new TranslateAnimation(0,
                100.f, 0, 100.f);
        RotateAnimation rotateAnimation1 = new RotateAnimation(0, 360);
        ScaleAnimation scaleAnimation1 = new ScaleAnimation(1, 2, 1, 2);

        // 将动画添加到set集合中
        sets.addAnimation(alphaAnimation1);
        sets.addAnimation(translateAnimation1);
        sets.addAnimation(rotateAnimation1);
        sets.addAnimation(scaleAnimation1);

        sets.setDuration(4000);
        sets.setRepeatCount(2);
        sets.setRepeatMode(Animation.RESTART);
        mImageView.startAnimation(sets);

6. XML achieve animation effects

• res 1. animation XML file belongs / anim / hyperspace_jump.xml

<set android:shareInterpolator="false">
    <scale
        android:interpolator="@android:anim/accelerate_decelerate_interpolator"
        android:fromXScale="1.0"
        android:toXScale="1.4"
        android:fromYScale="1.0"
        android:toYScale="0.6"
        android:pivotX="50%"
        android:pivotY="50%"
        android:fillAfter="false"
        android:duration="700" />
    <set android:interpolator="@android:anim/decelerate_interpolator">
        <scale
           android:fromXScale="1.4"
           android:toXScale="0.0"
           android:fromYScale="0.6"
           android:toYScale="0.0"
           android:pivotX="50%"
           android:pivotY="50%"
           android:startOffset="700"
           android:duration="400"
           android:fillBefore="false" />
        <rotate
           android:fromDegrees="0"
           android:toDegrees="-45"
           android:toYScale="0.0"
           android:pivotX="50%"
           android:pivotY="50%"
           android:startOffset="700"
           android:duration="400" />
    </set>
</set>

• 2. Load animated picture xml file

   ImageView spaceshipImage = (ImageView) findViewById(R.id.spaceshipImage);
   Animation hyperspaceJumpAnimation = AnimationUtils.loadAnimation(this, R.anim.hyperspace_jump);
   spaceshipImage.startAnimation(hyperspaceJumpAnimation);

3. Detailed use property animation

Property animation events can click to change with position change

The key attribute animation classes are as follows:

1. ValueAnimator
2. ObjectAnimator
3. TypeEvaluator

1. ValueAnimator

Use as follows:

    ValueAnimator animation = ValueAnimator.ofFloat(0f, 100f);
    animation.setDuration(1000);
    animation.start();

2. ObjectAnimator

Use as follows:

ObjectAnimator animation = ObjectAnimator.ofFloat(textView, "translationX", 100f);
animation.setDuration(1000);
animation.start();

Property animation Category:

1. Transparent animated alpha
2. Rotation animation rotation
3. Zoom animation scaleX
4. Panning animation translationX
5. Animation collection AnimatorSet
6. Animation monitor events addListener

1. transparent animation

• alpha

   /**
         * alpha 透明动画 1.属性动画作用在谁身上 2.属性名称 3.属性的变化范围值 透明值
         * **/
        ObjectAnimator alphaanimator = ObjectAnimator.ofFloat(mImageView,
                "alpha", 0, 1.0f);
        alphaanimator.setDuration(4000);
        alphaanimator.setRepeatCount(2);
        alphaanimator.start();

2. rotation animation

• rotation

     /**
         * 旋转动画 rotation
         * */
        ObjectAnimator rotationanimator = ObjectAnimator.ofFloat(mImageView,
                "rotation", 0, 360);
        rotationanimator.setDuration(2000);
        rotationanimator.setRepeatCount(2);
        rotationanimator.setRepeatMode(Animation.RESTART);
        rotationanimator.start();

3. zoom animation

• scaleX

       /**
         * scaleX 缩放动画
         *
         * */
        ObjectAnimator scaleXanimator = ObjectAnimator.ofFloat(mImageView,
                "scaleX", 0, 2);
        scaleXanimator.setDuration(2000);
        scaleXanimator.setRepeatCount(2);
        scaleXanimator.setRepeatMode(Animation.RESTART);
        scaleXanimator.start();

4. panning animation

• translationX

      /**
         * translationX平移动画
         *
         * */
        ObjectAnimator translationanimator = ObjectAnimator.ofFloat(mImageView,
                "translationX", 0, 200f);
        translationanimator.setDuration(2000);
        translationanimator.setRepeatCount(2);
        translationanimator.setRepeatMode(Animation.RESTART);
        translationanimator.start();

5. animation collection

• AnimatorSet

 /**
         * 动画集合效果 rotation
         * */

        AnimatorSet animatorSet = new AnimatorSet();
        ObjectAnimator animator1 = ObjectAnimator.ofFloat(mImageView, "alpha",
                0, 1.0f);
        ObjectAnimator animator2 = ObjectAnimator.ofFloat(mImageView,
                "translationX", 0, 100f);
        ObjectAnimator animator3 = ObjectAnimator.ofFloat(mImageView, "scaleX",
                0, 3);
        ObjectAnimator animator4 = ObjectAnimator.ofFloat(mImageView,
                "rotation", 0, 90);
        List<Animator> list = new ArrayList<Animator>();

        // 将动画集合添加到list集合中
        list.add(animator1);
        list.add(animator2);
        list.add(animator3);
        list.add(animator4);

        // 播放集合中的动画
        animatorSet.playSequentially(list);
        animatorSet.setDuration(2000);
        animatorSet.start();

6. Animation monitor events

  scaleXanimator.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationCancel(Animator animation) {
                super.onAnimationCancel(animation);
            }

            @Override
            public void onAnimationEnd(Animator animation) {
                super.onAnimationEnd(animation);
            }

            @Override
            public void onAnimationRepeat(Animator animation) {
                super.onAnimationRepeat(animation);
            }

            @Override
            public void onAnimationStart(Animator animation) {
                super.onAnimationStart(animation);
            }

            @Override
            public void onAnimationPause(Animator animation) {
                super.onAnimationPause(animation);
            }

            @Override
            public void onAnimationResume(Animator animation) {
                super.onAnimationResume(animation);
            }
        });

So far herein, this has ended, if the wrong place, welcome your suggestions and corrections. At the same time look forward to your attention, thank you for reading, thank you!