android 动画

亦余心之所善兮，虽九死其犹未悔。这篇文章主要讲述android 动画相关的知识，希望能为你提供帮助。
Alpha

1.alpha改变view的透明度的动画
2.基本属性：
duration="5000" 渐变时间
fromAlpha="1"起始时的透明度 1为不透明
toAlpha="0"结束时透明度0为透明
3.java

AlphaAnimation anim=new AlphaAnimation(1, 0); anim.setDuration(5000); v.startAnimation(anim);

　4.xml

< ?xml version="1.0" encoding="utf-8"?> < alpha xmlns:android="http://schemas.android.com/apk/res/android" android:duration="5000" android:fromAlpha="1" android:toAlpha="0" > < /alpha>

5.xml 启动

Animation anim = AnimationUtils.loadAnimation(this,R.anim.alpha_first); v.startAnimation(anim);

6.Activity 转场动画 /anim
alpha_in

< ?xml version="1.0" encoding="utf-8"?> < alpha xmlns:android="http://schemas.android.com/apk/res/android" android:duration="1000" android:fromAlpha="0" android:toAlpha="1" > < /alpha>

alpha_out

< ?xml version="1.0" encoding="utf-8"?> < alpha xmlns:android="http://schemas.android.com/apk/res/android" android:duration="1000" android:fromAlpha="1" android:toAlpha="0" > < /alpha>

java:

Intent it=new Intent(this,Alpha2Activity.class); startActivity(it); overridePendingTransition(R.anim.alpha_in, R.anim.alpha_out);

rotate1.旋转动画

< ?xml version="1.0" encoding="utf-8"?> < rotate xmlns:android="http://schemas.android.com/apk/res/android" android:duration="5000" android:fromDegrees="1" android:pivotX="50%" android:pivotY="50%" android:toDegrees="180" > < /rotate>

android:pivotX="50%"
android:pivotY="50%"旋转中心点view的中信
android:fromDegrees="1"起始时view的角度
android:toDegrees="180" 旋转结束后的角度
选择角度为正时是顺时针旋转，为负时则是逆时针旋转。
2.java:

RotateAnimation anim=new RotateAnimation(0, 90); anim.setDuration(5000); v.startAnimation(anim);

3.xml

Animation anim = AnimationUtils.loadAnimation(this, R.anim.rotate_frist); v.startAnimation(anim);

scale1.缩放动画

< ?xml version="1.0" encoding="utf-8"?> < scale xmlns:android="http://schemas.android.com/apk/res/android" android:duration="5000" android:fromXScale="1" android:fromYScale="1" android:repeatCount="infinite" android:repeatMode="reverse" android:toXScale="3" android:toYScale="1" > < /scale>

2.java

//缩放动画 x--1变成0.3y变成2 放大一倍 ScaleAnimation anim=new ScaleAnimation(1, 0.3f, 1, 2); //时长 anim.setDuration(5000); v.startAnimation(anim);

Translate1.位置移动

< ?xml version="1.0" encoding="utf-8"?> < translate xmlns:android="http://schemas.android.com/apk/res/android" android:duration="5000" android:fromXDelta="1" android:fromYDelta="1" android:interpolator="@android:anim/bounce_interpolator" android:toXDelta="1" android:fillAfter="true" android:toYDelta="300" > < /translate>

android:interpolator="@android:anim/bounce_interpolator"// 动画执行速率
android:fillAfter="true"动画结束时，停留在最后位置

2.转场动画
translate_in

< ?xml version="1.0" encoding="utf-8"?> < translate xmlns:android="http://schemas.android.com/apk/res/android" android:duration="300" android:fromXDelta="1" android:fromYDelta="-100%" android:toXDelta="1" android:toYDelta="0" > < /translate>

translate_out

< ?xml version="1.0" encoding="utf-8"?> < translate xmlns:android="http://schemas.android.com/apk/res/android" android:duration="300" android:fromXDelta="1" android:fromYDelta="1" android:toXDelta="1" android:toYDelta="100%" > < /translate>

Intent it=new Intent(this,Alpha2Activity.class); startActivity(it); overridePendingTransition(R.anim.translate_in, R.anim.translate_out);

3.java

/* * 300:x方向移动的距离 */ TranslateAnimation anim=new TranslateAnimation(1, 300, 1, 1); anim.setDuration(5000); v.startAnimation(anim);

4.xml

//加载xml Animation anim = AnimationUtils.loadAnimation(this, R.anim.translate_first); v.startAnimation(anim);

set动画集1.java

AlphaAnimation a=new AlphaAnimation(1, 0); RotateAnimation b=new RotateAnimation(0, -180); //动画集:旋转的同时淡出 AnimationSet set=new AnimationSet(true); set.addAnimation(a); set.addAnimation(b); set.setDuration(5000); v.startAnimation(set);

2.xml

Animation anim = AnimationUtils.loadAnimation(this, R.anim.set_first); v.startAnimation(anim);

< ?xml version="1.0" encoding="utf-8"?> < set xmlns:android="http://schemas.android.com/apk/res/android" android:duration="5000" > < scale android:fromXScale="1" android:fromYScale="1" android:toXScale="0" android:toYScale="0" > < /scale> < translate android:fromXDelta="1" android:fromYDelta="1" android:toXDelta="200" android:toYDelta="300" > < /translate> < /set>

3.activity转场

set_in

< ?xml version="1.0" encoding="utf-8"?> < set xmlns:android="http://schemas.android.com/apk/res/android" android:duration="1000" > < scale android:fromXScale="0" android:fromYScale="0" android:pivotX="50%" android:pivotY="50%" android:toXScale="1" android:toYScale="1" /> < alpha android:fromAlpha="0" android:toAlpha="1" /> < /set>

set_out

< ?xml version="1.0" encoding="utf-8"?> < set xmlns:android="http://schemas.android.com/apk/res/android" android:duration="1000" > < !-- 缩小淡出 --> < scale android:fromXScale="1" android:fromYScale="1" android:pivotX="50%" android:pivotY="50%" android:toXScale="0" android:toYScale="0" /> < alpha android:fromAlpha="1" android:toAlpha="0" /> < /set>

Intent it=new Intent(this,Alpha2Activity.class); startActivity(it); overridePendingTransition(R.anim.set_in, R.anim.set_out);

frame由多张图片循环播放形成的动画
1.drawable/文件多张图片

< ?xml version="1.0" encoding="utf-8"?> < animation-list xmlns:android="http://schemas.android.com/apk/res/android" > < item android:drawable="@drawable/loading_0" android:duration="100"/> < item android:drawable="@drawable/loading_1" android:duration="100"/> < item android:drawable="@drawable/loading_2" android:duration="100"/> < item android:drawable="@drawable/loading_3" android:duration="100"/> < item android:drawable="@drawable/loading_4" android:duration="100"/> < item android:drawable="@drawable/loading_5" android:duration="100"/> < item android:drawable="@drawable/loading_6" android:duration="100"/> < item android:drawable="@drawable/loading_7" android:duration="100"/> < /animation-list>

2.image中利用

< ImageView android:id="@+id/imageView1" android:layout_width="67dp" android:layout_height="54dp" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:background="@drawable/frame_first" />

3.java

ImageView mv=(ImageView) findViewById(R.id.imageView1); AnimationDrawable drawable = (AnimationDrawable) mv.getBackground(); drawable.start();

property1.补间动画(view动画)的变换只是假象,view的属性值没有发生任何变化，是android操作系统
通过重新绘制实现的
属性动画:
通过改变属性值完成的动画
2.translated对比

TranslateAnimation a=new TranslateAnimation(1, 300, 1, 1); a.setDuration(3000); a.setFillAfter(true); v.startAnimation(a);

ObjectAnimator.ofFloat(v, "TranslationY",200).setDuration(2000).start();

在X,Y方向移动，移动后translate无法点击，属性动画依然可以相应点击事件

3.监听

ObjectAnimator anim = ObjectAnimator.ofFloat(v, View.ROTATION_Y, 0,90,180); anim.setDuration(5000); anim.start(); //添加监听器 anim.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animation) {super.onAnimationEnd(animation); } }); }

4.动画集

AnimatorSet s=new AnimatorSet(); ObjectAnimator a = ObjectAnimator.ofFloat(v, View.ALPHA, 1,0); ObjectAnimator b = ObjectAnimator.ofFloat(v, View.ROTATION, 1,-90,180,360); s.setDuration(5000); s.playTogether(a,b); s.start();

5.xml animator/文件

Animator anim = AnimatorInflater.loadAnimator(this,R.animator.property_first); //指定动画作用的对象 anim.setTarget(v); //启动 anim.start();

6.java

/* * v:动画作用的view对象 * View.TRANSLATION_X：被改变值的属性 * 第三个参数:属性取值的范围 */ ObjectAnimator anim = ObjectAnimator.ofFloat(v, View.TRANSLATION_X,1,20,1,-20,1); anim.setDuration(300); anim.start();

& myanims