package com.wang.avi.indicators;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import android.view.animation.LinearInterpolator;
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import android.animation.ValueAnimator;
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import com.wang.avi.Indicator;
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import java.util.ArrayList;
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/**
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* Created by Jack on 2015/10/19.
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*/
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public class BallZigZagIndicator extends Indicator {
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float[] translateX=new float[2],translateY=new float[2];
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@Override
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public void draw(Canvas canvas, Paint paint) {
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for (int i = 0; i < 2; i++) {
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canvas.save();
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canvas.translate(translateX[i], translateY[i]);
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canvas.drawCircle(0, 0, getWidth() / 10, paint);
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canvas.restore();
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}
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}
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@Override
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public ArrayList<ValueAnimator> onCreateAnimators() {
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ArrayList<ValueAnimator> animators=new ArrayList<>();
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float startX=getWidth()/6;
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float startY=getWidth()/6;
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for (int i = 0; i < 2; i++) {
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final int index=i;
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ValueAnimator translateXAnim=ValueAnimator.ofFloat(startX,getWidth()-startX,getWidth()/2,startX);
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if (i==1){
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translateXAnim=ValueAnimator.ofFloat(getWidth()-startX,startX,getWidth()/2,getWidth()-startX);
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}
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ValueAnimator translateYAnim=ValueAnimator.ofFloat(startY,startY,getHeight()/2,startY);
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if (i==1){
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translateYAnim=ValueAnimator.ofFloat(getHeight()-startY,getHeight()-startY,getHeight()/2,getHeight()-startY);
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}
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translateXAnim.setDuration(1000);
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translateXAnim.setInterpolator(new LinearInterpolator());
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translateXAnim.setRepeatCount(-1);
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addUpdateListener(translateXAnim,new ValueAnimator.AnimatorUpdateListener() {
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@Override
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public void onAnimationUpdate(ValueAnimator animation) {
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translateX[index] = (float) animation.getAnimatedValue();
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postInvalidate();
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}
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});
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translateYAnim.setDuration(1000);
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translateYAnim.setInterpolator(new LinearInterpolator());
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translateYAnim.setRepeatCount(-1);
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addUpdateListener(translateYAnim,new ValueAnimator.AnimatorUpdateListener() {
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@Override
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public void onAnimationUpdate(ValueAnimator animation) {
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translateY[index] = (float) animation.getAnimatedValue();
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postInvalidate();
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}
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});
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animators.add(translateXAnim);
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animators.add(translateYAnim);
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}
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return animators;
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}
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}
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