package com.example.propertyanimdemo
;
import android.animation.ObjectAnimator
;
import android.animation.PropertyValuesHolder
;
import android.os.Bundle
;
import android.support.v7.app.AppCompatActivity
;
import android.view.View
;
import android.widget.Button
;
import android.widget.TextView
;
public class ThirdActivity
extends AppCompatActivity
implements View.OnClickListener {
/**
* 位移
*/
private Button
mBtTrans;
/**
* 旋转
*/
private Button
mBtRotate;
/**
* 渐变
*/
private Button
mBtAlpha;
/**
* 缩放
*/
private Button
mBtScale;
/**
* Hello World!
*/
private TextView
mTv;
/**
* 组合
*/
private Button
mBtZuhe;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState)
;
setContentView(R.layout.
activity_third)
;
initView()
;
}
private void initView() {
mBtTrans = (Button) findViewById(R.id.
btTrans)
;
mBtTrans.setOnClickListener(
this)
;
mBtRotate = (Button) findViewById(R.id.
btRotate)
;
mBtRotate.setOnClickListener(
this)
;
mBtAlpha = (Button) findViewById(R.id.
btAlpha)
;
mBtAlpha.setOnClickListener(
this)
;
mBtScale = (Button) findViewById(R.id.
btScale)
;
mBtScale.setOnClickListener(
this)
;
mTv = (TextView) findViewById(R.id.
tv)
;
mBtZuhe = (Button) findViewById(R.id.
btZuhe)
;
mBtZuhe.setOnClickListener(
this)
;
}
@Override
public void onClick(View v) {
switch (v.getId()) {
default:
break;
case R.id.
btTrans:
trans()
;
break;
case R.id.
btRotate:
rotate()
;
break;
case R.id.
btAlpha:
alpha()
;
break;
case R.id.
btScale:
scale()
;
break;
case R.id.
btZuhe:
zuhe()
;
break;
}
}
public void zuhe() {
PropertyValuesHolder trans = PropertyValuesHolder.
ofFloat(View.
TRANSLATION_X, 0, 200f)
;
PropertyValuesHolder rotate = PropertyValuesHolder.
ofFloat(View.
ROTATION_Y, 0, 180f)
;
PropertyValuesHolder alpha = PropertyValuesHolder.
ofFloat(View.
ALPHA, 0, 1f, 0.5f)
;
PropertyValuesHolder scale = PropertyValuesHolder.
ofFloat(View.
SCALE_Y, 1f, 2f)
;
//给mTv添加了多种动画
ObjectAnimator objectAnimator = ObjectAnimator.
ofPropertyValuesHolder(
mTv, trans
, rotate
, alpha
, scale)
;
objectAnimator.setDuration(
3000)
;
objectAnimator.start()
;
}
private void trans() {
ObjectAnimator objectAnimator = ObjectAnimator.
ofFloat(
mTv, View.
TRANSLATION_X, 0, 200f)
;
objectAnimator.setDuration(
3000)
;
objectAnimator.start()
;
}
private void rotate() {
ObjectAnimator objectAnimator = ObjectAnimator.
ofFloat(
mTv, View.
ROTATION_Y, 0, 180f)
;
objectAnimator.setDuration(
3000)
;
objectAnimator.start()
;
}
private void alpha() {
ObjectAnimator objectAnimator = ObjectAnimator.
ofFloat(
mTv, View.
ALPHA, 0, 1f, 0.5f)
;
objectAnimator.setDuration(
3000)
;
objectAnimator.start()
;
}
private void scale() {
ObjectAnimator objectAnimator = ObjectAnimator.
ofFloat(
mTv, View.
SCALE_Y, 2f)
;
objectAnimator.setDuration(
3000)
;
objectAnimator.start()
;
}
}
