android动画-Property Animation
转载注明出处: http://blog.csdn.net/forwardyzk/article/details/42741953
Property Animation 属性动画，这个是在Android 3.0中才引进的。
Property Animation其改变的是对象属性对应的值，应用于任何对象，而Tween Animation更改的是绘画的效果，其属性值是没有变化的。ObjectAnimator:更改对象的属性值
使用方法：
ObjectAnimator translationRight = ObjectAnimator.ofFloat(m_tv, "X",width);
translationRight.setDuration(1500);
translationRight.start();
这是一个平移的效果，ObjectAnimator.ofFloat(m_tv, "X",width);第一个参数是:对象 第二个参数:该对象的属性，属性有必须有对应的getX()和setX()方法，第三个参数:一个可变参数的值
如果只写了一个值，那么就默认从当前的值变为填写的值，如果填写了多个，就按照填写的顺序做相应的变化，
setDuration():设置运行的时间,start():开启
AnimatorSet:将多个ObjectAnimator的效果一直执行或则按照先后顺序执行
ObjectAnimator translationRight = ObjectAnimator.ofFloat(m_tv, "X",width);
ObjectAnimator translationLeft = ObjectAnimator.ofFloat(m_tv, "X", 0f);
ObjectAnimator translationDown = ObjectAnimator.ofFloat(m_tv, "Y",height);
ObjectAnimator translationUp = ObjectAnimator.ofFloat(m_tv, "Y", 0);
AnimatorSet as = new AnimatorSet();
as.play(translationRight).before(translationLeft);
as.play(translationRight).with(translationDown);
as.play(translationLeft).with(translationUp);
paly() with() before() after() 设置执行的顺序 start()开启
下面代码的介绍请参考: http://www.open-open.com/lib/view/open1329994048671.html
ValueAnimator，TypeEvalutors，TimeInterplator，Keyframes
部分示例代码:
<span style="font-family:SimSun;font-size:18px;"><?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ImageView
android:id="@+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/girl" />
<EditText
android:id="@+id/edit_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp" />
</LinearLayout></span>
<span style="font-family:SimSun;font-size:18px;">private void initImageAnimationSet() {
ImageView image = (ImageView) findViewById(R.id.image);
ObjectAnimator obOutX = ObjectAnimator.ofFloat(image, "X", 200);
ObjectAnimator obOutY = ObjectAnimator.ofFloat(image, "Y", 200);
ObjectAnimator obInX = ObjectAnimator.ofFloat(image, "X", 0);
ObjectAnimator obInY = ObjectAnimator.ofFloat(image, "Y", 0);
final AnimatorSet set = new AnimatorSet();
set.play(obOutX).with(obOutY);
set.play(obInX).with(obInY);
set.play(obOutX).before(obInX);
image.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
set.start();
}
});
}
/**
* ObjectAnimator使用
*/
private void initEditObjectAnimator() {
EditText edt = (EditText) findViewById(R.id.edit_text);
final ObjectAnimator translationRight = ObjectAnimator.ofFloat(edt,
"X", 0, 50, -10, 40, -5, 30, -3, 20, -1, 10, 0);
translationRight.setDuration(1500);
edt.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
@Override
public void afterTextChanged(Editable s) {
if (TextUtils.isEmpty(s.toString())) {
translationRight.start();
}
}
});
}</span>
案例代码下载: http://download.csdn.net/detail/forwardyzk/8365189
效果图:
