安卓补间动画属性学会这些平时的开发足够了
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体系结构
objectAnimator extend ValueAnimator extend Animator implement Cloneable
1属性动画
平移动画
<span></span>//给button设置x轴平移动画,从100开始到200,再到300, ObjectAnimator transX = ObjectAnimator.ofFloat(button, "translationX", 100f, 200f, 300f); transX.setDuration(2000);//时间2秒 transX.setRepeatCount(1);//重复一次,总共两次 transX.setRepeatMode(ObjectAnimator.RESTART);//重复播放时从头开始再次播放 transX.start();//开始
平移方向:由ofFloat的第二个参数决定:
translationX为x轴,<pre name="code" class="java">translationY为y轴方向
平移距离怎么确定
相对于控件的中心点,向上或者向下移动**像素
移动完之后会不会回到原来位置
不会,可以在后面继续加数值,比如先移动到100,再移动到0就会回到原点,<span style="color:#ff0000;">移动后控件的位置发生永久改变</span>
缩放动画
<span style="white-space:pre"></span>ObjectAnimator scaleX = ObjectAnimator.ofFloat(button2, "scaleX", 1f, 0f, 1f); button2.setPivotX(5000); <span style="color:#ff0000;">//加入这句代码可以控制以x方向500点出竖直线为中心缩放,x轴缩放就给控件设置pivotX,y轴缩放就给控件设置pivotY</span> scaleX.setDuration(2000); scaleX.setRepeatCount(1); scaleX.setRepeatMode(ObjectAnimator.RESTART); scaleX.start();
默认相对于那条线缩放,不可以相对于某一点缩放,要实现此方法可以用x轴缩放和y轴动画的set动画来实现
参数为scaleX,轴线为过控件中心点的水平线参数为scaleY,轴线为过控件中心点的竖直线
透明动画
<span style="white-space:pre"></span>ObjectAnimator alpha = ObjectAnimator.ofFloat(button4, "alpha", 0f, 1f);//取值是0f-1f alpha.setDuration(2000); alpha.setRepeatCount(1); alpha.setRepeatMode(ObjectAnimator.RESTART); alpha.start();
旋转动画
<span style="white-space:pre"></span>ObjectAnimator rotationX = ObjectAnimator.ofFloat(button3, "rotationX", 0f, 360f);//角度值 rotationX.setDuration(2000); rotationX.setRepeatCount(1); rotationX.setRepeatMode(ObjectAnimator.RESTART); rotationX.start();
相对于谁旋转
参数为<span style="font-family: Arial, Helvetica, sans-serif;">rotationX</span><span style="font-family: Arial, Helvetica, sans-serif;">,轴线为过控件中心点的水平线</span>参数为<span style="font-family: Arial, Helvetica, sans-serif;">rotationY</span><span style="font-family: Arial, Helvetica, sans-serif;">,轴线为过控件中心点的竖直线</span>
相对于某个点旋转第二个参数设置成rotation,后面加x就是在x轴方向上旋转,加y就是在y轴方向上旋转
<span style="white-space:pre"></span>ObjectAnimator rotationY = ObjectAnimator.ofFloat(button5, "<span style="color:#ff0000;">rotation</span>", 0f, 180f); rotationY.setDuration(2000); rotationY.setRepeatCount(1); button5.setPivotX(0); button5.setPivotY(0);//相对于00点旋转 rotationY.setRepeatMode(ObjectAnimator.RESTART); rotationY.start();
组合动画
- after(Animator anim) 将现有动画插入到传入的动画之后执行
- after(long delay) 将现有动画延迟指定毫秒后执行
- before(Animator anim) 将现有动画插入到传入的动画之前执行
- with(Animator anim) 将现有动画和传入的动画同时执行
<span style="white-space:pre"></span>ObjectAnimator alpha1 = ObjectAnimator.ofFloat(button7, "alpha", 0f, 1f); alpha1.setDuration(2000); alpha1.setRepeatMode(ObjectAnimator.RESTART); ObjectAnimator scale1 = ObjectAnimator.ofFloat(button7, "scaleY", 0f, 1f); scale1.setDuration(2000); scale1.setRepeatMode(ObjectAnimator.RESTART); ObjectAnimator scale2 = ObjectAnimator.ofFloat(button7, "scaleX", 0f, 1f); scale2.setDuration(2000); scale2.setRepeatMode(ObjectAnimator.RESTART); AnimatorSet set = new AnimatorSet(); <span style="color:#ff0000;">//先停3秒,一起缩放,最后透明//可以使用playTogether<span style="font-size: 14px; line-height: 30px; background-color: rgb(245, 248, 253);">(Animator… items)</span>方法让所有动画一起执行//</span><span style="font-family: 宋体; font-size: 9.7pt; color: rgb(255, 0, 0); background-color: rgb(217, 230, 255);">playSequentially<span style="font-family: monospace; font-size: 14px; line-height: 30px; text-indent: 28px; background-color: rgb(245, 248, 253);">(Animator… items)</span>可以让动画顺序执行</span><span style="color:#ff0000;"> //注意:下面的代码中动画不能重复,否则报错,每个动画可以单独设置属性,实现差异化,也可以set中一次性全部设置</span>
set.play(scale1).with(scale2).after(3000).before(alpha1); set.start();
xml实现属性动画
<?xml version="1.0" encoding="utf-8"?><!-<span style="font-family: Arial, Helvetica, sans-serif;">R.animator.animator1</span><span style="font-family: Arial, Helvetica, sans-serif;">的内容如下-></span><set xmlns:android="http://schemas.android.com/apk/res/android"> <objectAnimator android:duration="2000" android:propertyName='scaleX' android:valueFrom='1' android:valueTo='2' android:valueType='floatType'/> <objectAnimator android:duration="1000" android:propertyName='rotation' android:valueFrom='0' android:valueTo='180' android:valueType='floatType'/></set>
<span style="white-space:pre"></span>Animator animator = AnimatorInflater.loadAnimator(getApplicationContext(), R.animator.animator1); button8.setPivotX(0); button8.setPivotY(0); animator.setTarget(button8); animator.start();
2.补间动画
平移动画
<span style="white-space: pre;"></span><pre style="font-family: 宋体; font-size: 9.7pt; background-color: rgb(255, 255, 255);"><span style="color: rgb(128, 128, 128); "><em>//或者TranslateAnimation translateAnimation = new TranslateAnimation(0, 100, 0, 100);</em></span><span style="font-size:14px; font-family: Arial, Helvetica, sans-serif;"></span>
TranslateAnimation translateAnimation = new TranslateAnimation( Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 1, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 1); translateAnimation.setDuration(2000); translateAnimation.setRepeatMode(Animation.REVERSE); translateAnimation.setRepeatCount(1); button.startAnimation(translateAnimation); //这句代码,相当于先setAnimation然后再start
缩放动画
ScaleAnimation scaleAnimation = new ScaleAnimation(0,1,0,1);//默认相对于本身缩放,相对于0,0点缩放,而且xy轴可以同时缩放 ScaleAnimation scaleAnimation = new ScaleAnimation(0,1,0,1,300,100);//此时相对于本身,并且缩放的中心点是300,100,x轴从0-1,y轴从0-1,//比较灵活,可以设置参数,调节那个方向上缩放,缩放比例也可以不同 /*ScaleAnimation scaleAnimation = new ScaleAnimation( 0,1,//x轴,从0-1 0,1,//y轴,从0-1 Animation.RELATIVE_TO_SELF,2, //x方向上相对于本身缩放, Animation.RELATIVE_TO_PARENT ,0.5f //y方向上相对于父控件缩放,相对于自己2倍*父控件的0.5倍的点开始缩放 );//此方法不常用,不多介绍*/ scaleAnimation.setDuration(2000); scaleAnimation.setRepeatMode(Animation.REVERSE);//重复模式,反转 scaleAnimation.setRepeatCount(1); button2.startAnimation(scaleAnimation);
透明动画
<span style="font-size:14px;"><span style="white-space:pre"></span>AlphaAnimation alphaAnimation = new AlphaAnimation(0,1); alphaAnimation.setDuration(2000); button3.startAnimation(alphaAnimation);</span>
旋转动画
<span style="font-size:14px;"> RotateAnimation rotateAnimation = new RotateAnimation(0, 360, 100, 200);//相对于100,200旋转 rotateAnimation.setDuration(2000); button3.startAnimation(rotateAnimation);</span>
组合动画,add到set中再启动动画
<span style="font-size:14px;"> <span style="white-space: pre;"></span>AlphaAnimation alphaAnimation1 = new AlphaAnimation(0,1); alphaAnimation1.setDuration(2000); RotateAnimation rotateAnimation1 = new RotateAnimation(0, 360, 100, 200);//相对于100,200旋转 rotateAnimation1.setDuration(2000); AnimationSet animationSet = new AnimationSet(true); animationSet.addAnimation(alphaAnimation1); animationSet.addAnimation(rotateAnimation1); button7.startAnimation(animationSet);</span>
xml实现动画
<span style="font-size:14px;"><span style="white-space:pre"></span>Animation animation = AnimationUtils.loadAnimation(this, R.anim.anim1); button8.startAnimation(animation);</span>
<span style="font-size:14px;">R.anim.anim1内容如下:</span><pre name="code" class="java"><?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android" android:fillAfter="false" > <scale android:fromXScale="1" android:fromYScale="1" android:pivotX="100%" android:pivotY="50%" android:toXScale="2" android:toYScale="2" android:duration="2000"/> <rotate android:repeatCount="1" android:repeatMode="reverse" android:duration="2000" android:fromDegrees="0" android:interpolator="@android:anim/accelerate_interpolator" android:pivotX="50%" android:pivotY="50%" android:toDegrees="720" > </rotate></set>
3.两种动画比较
属性动画控件会永久改变位置,而补间动画不会
缩放动画用补间动画显然更加方便
补间动画一个动画可以给多个控件使用,而属性动画不是很方便
Android 属性动画使用解析-属性动画基本用法此文中有详细说明,在此简单总结一下
1.属性动画是Android3.0引入了一个新的动画，如果想要在低版本上面使用属性动画，可以使用第三方 NineOldAndroids jar包，属性动画功能相当强大，几乎可以完全替换掉以前所讲的帧动画了。
2.View Animation仅仅作用于View，在Android补间动画Tween Animation使用解析文章开始就已经介绍了，并且它只对View部分属性有效果，如果我们想要改变一个View的背景色，补间动画是做不到的。也就是说用属性动画不仅仅是视觉上的改变,控件的实际值也改变了,包括他的高,宽等都是实实在在的更改了;
开发中根据二者对比去选择,一般来说两者都可以胜任
附录1属性动画代码(全)
package com.z.ani;import android.animation.Animator;import android.animation.AnimatorInflater;import android.animation.AnimatorSet;import android.animation.ObjectAnimator;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.view.View;import android.widget.Button;public class AnimatorActivity extends AppCompatActivity implements View.OnClickListener { private android.widget.Button button; private android.widget.Button button2; private android.widget.Button button3; private android.widget.Button button4; private android.widget.Button button5; private android.widget.Button button6; private android.widget.Button button7; private android.widget.Button button8; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_animator); this.button8 = (Button) findViewById(R.id.button8); this.button7 = (Button) findViewById(R.id.button7); this.button6 = (Button) findViewById(R.id.button6); this.button5 = (Button) findViewById(R.id.button5); this.button4 = (Button) findViewById(R.id.button4); this.button3 = (Button) findViewById(R.id.button3); this.button2 = (Button) findViewById(R.id.button2); this.button = (Button) findViewById(R.id.button); button8.setOnClickListener(this); button7.setOnClickListener(this); button6.setOnClickListener(this); button5.setOnClickListener(this); button4.setOnClickListener(this); button3.setOnClickListener(this); button2.setOnClickListener(this); button.setOnClickListener(this); } @Override public void onClick(View v) { switch (v.getId()) { case R.id.button: //给button设置x轴平移动画,从100开始到200,再到300, ObjectAnimator transX = ObjectAnimator.ofFloat(button, "translationX", 100f, 200f, 300f); transX.setDuration(2000);//时间2秒 transX.setRepeatCount(1);//重复一次,总共两次 transX.setRepeatMode(ObjectAnimator.RESTART);//重复播放时从头开始再次播放 transX.start();//开始 break; case R.id.button2: ObjectAnimator scaleX = ObjectAnimator.ofFloat(button2, "scaleX", 1f, 0f, 1f); button2.setPivotX(500); scaleX.setDuration(2000); scaleX.setRepeatCount(1); scaleX.setRepeatMode(ObjectAnimator.RESTART); scaleX.start(); break; case R.id.button3: ObjectAnimator rotationX = ObjectAnimator.ofFloat(button3, "rotationX", 0f, 360f); button3.setPivotX(0); button3.setPivotY(0); rotationX.setDuration(2000); rotationX.setRepeatCount(1); rotationX.setRepeatMode(ObjectAnimator.RESTART); rotationX.start(); break; case R.id.button4: ObjectAnimator alpha = ObjectAnimator.ofFloat(button4, "alpha", 0f, 1f); alpha.setDuration(2000); alpha.setRepeatCount(1); alpha.setRepeatMode(ObjectAnimator.RESTART); alpha.start(); break; case R.id.button5: ObjectAnimator rotationY = ObjectAnimator.ofFloat(button5, "rotation", 0f, 180f); rotationY.setDuration(2000); rotationY.setRepeatCount(1); button5.setPivotX(0); button5.setPivotY(0); rotationY.setRepeatMode(ObjectAnimator.RESTART); rotationY.start(); break; case R.id.button6: ObjectAnimator scaleY = ObjectAnimator.ofFloat(button6, "scaleY", 0f, 1f); scaleY.setDuration(2000); scaleY.setRepeatCount(1); button6.setPivotY(0); scaleY.setRepeatMode(ObjectAnimator.RESTART); scaleY.start(); break; case R.id.button7: ObjectAnimator alpha1 = ObjectAnimator.ofFloat(button7, "alpha", 0f, 1f); alpha1.setDuration(2000); alpha1.setRepeatMode(ObjectAnimator.RESTART); ObjectAnimator scale1 = ObjectAnimator.ofFloat(button7, "scaleY", 0f, 1f); scale1.setDuration(2000); scale1.setRepeatMode(ObjectAnimator.RESTART); ObjectAnimator scale2 = ObjectAnimator.ofFloat(button7, "scaleX", 0f, 1f); scale2.setDuration(2000); scale2.setRepeatMode(ObjectAnimator.RESTART); AnimatorSet set = new AnimatorSet(); //先挺3秒,一起缩放,最后透明 //注意:下面的代码中动画不能重复,否则报错 set.play(scale1).with(scale2).after(3000).before(alpha1); set.start(); break; case R.id.button8: Animator animator = AnimatorInflater.loadAnimator(getApplicationContext(), R.animator.animator1); button8.setPivotX(0); button8.setPivotY(0); animator.setTarget(button8); animator.start(); break; default: break; } }}<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" android:orientation="vertical" android:gravity="center" tools:context="com.z.ani.AnimationActivity"> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="平移" android:id="@+id/button"/> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="缩放" android:id="@+id/button2"/> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="旋转" android:id="@+id/button3"/> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="透明" android:id="@+id/button4"/> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Y轴旋转" android:id="@+id/button5"/> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Y轴缩放" android:id="@+id/button6"/> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="先挺3秒,xy轴一起缩放,最后来个透明" android:id="@+id/button7"/> <Button android:id="@+id/button8" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="xml方式动画"/></LinearLayout>
附录2,补间动画(全,上面是Activity,下面是xml代码)
package com.z.ani;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.view.View;import android.view.animation.AlphaAnimation;import android.view.animation.Animation;import android.view.animation.AnimationSet;import android.view.animation.AnimationUtils;import android.view.animation.RotateAnimation;import android.view.animation.ScaleAnimation;import android.view.animation.TranslateAnimation;import android.widget.Button;public class AnimationActivity extends AppCompatActivity implements View.OnClickListener { private android.widget.Button button; private android.widget.Button button2; private android.widget.Button button3; private android.widget.Button button4; private android.widget.Button button5; private android.widget.Button button6; private android.widget.Button button7; private android.widget.Button button8; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_animator); this.button8 = (Button) findViewById(R.id.button8); this.button7 = (Button) findViewById(R.id.button7); this.button6 = (Button) findViewById(R.id.button6); this.button5 = (Button) findViewById(R.id.button5); this.button4 = (Button) findViewById(R.id.button4); this.button3 = (Button) findViewById(R.id.button3); this.button2 = (Button) findViewById(R.id.button2); this.button = (Button) findViewById(R.id.button); button8.setOnClickListener(this); button7.setOnClickListener(this); button6.setOnClickListener(this); button5.setOnClickListener(this); button4.setOnClickListener(this); button3.setOnClickListener(this); button2.setOnClickListener(this); button.setOnClickListener(this); } @Override public void onClick(View v) { switch (v.getId()) { case R.id.button:// TranslateAnimation translateAnimation = new TranslateAnimation(0, 100, 0, 100); TranslateAnimation translateAnimation = new TranslateAnimation( Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 1, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 1); translateAnimation.setDuration(2000); translateAnimation.setRepeatMode(Animation.REVERSE); translateAnimation.setRepeatCount(1); button.startAnimation(translateAnimation); //这句代码,相当于先setAnimation然后再start break; case R.id.button2:// ScaleAnimation scaleAnimation = new ScaleAnimation(0,1,0,1);//默认相对于本身缩放,相对于0,0点缩放,而且xy轴可以同时缩放 ScaleAnimation scaleAnimation = new ScaleAnimation(0, 1, 0, 1, 300, 100);//此时相对于本身,并且缩放的中心点是300,100,x轴从0-1,y轴cong0-1 /* ScaleAnimation scaleAnimation = new ScaleAnimation( 0,1,//x轴,从0-1 0,1,//y轴,从0-1 Animation.RELATIVE_TO_SELF,2, //x方向上相对于本身缩放, Animation.RELATIVE_TO_PARENT ,0.5f //y方向上相对于父控件缩放,相对于自己2倍*父控件的0.5倍的点开始缩放 );//此方法不常用,不多介绍*/ scaleAnimation.setDuration(2000); scaleAnimation.setRepeatMode(Animation.REVERSE);//重复模式,反转 scaleAnimation.setRepeatCount(1); button2.startAnimation(scaleAnimation); break; case R.id.button3:// RotateAnimation rotateAnimation = new RotateAnimation(0, 360);//默认相对于0,0点旋转 RotateAnimation rotateAnimation = new RotateAnimation(0, 360, 100, 200);//相对于100,200旋转 rotateAnimation.setDuration(2000); button3.startAnimation(rotateAnimation); break; case R.id.button4: AlphaAnimation alphaAnimation = new AlphaAnimation(0,1); alphaAnimation.setDuration(2000); button3.startAnimation(alphaAnimation); break; case R.id.button5: break; case R.id.button6: break; case R.id.button7: AlphaAnimation alphaAnimation1 = new AlphaAnimation(0,1); alphaAnimation1.setDuration(2000); RotateAnimation rotateAnimation1 = new RotateAnimation(0, 360, 100, 200);//相对于100,200旋转 rotateAnimation1.setDuration(2000); AnimationSet animationSet = new AnimationSet(true); animationSet.addAnimation(alphaAnimation1); animationSet.addAnimation(rotateAnimation1); button7.startAnimation(animationSet); break; case R.id.button8: Animation animation = AnimationUtils.loadAnimation(this, R.anim.anim1); button8.startAnimation(animation); break; default: break; } }} 0 0
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