Android属性动画基础(2)

来源：互联网发布：数据新闻的特点编辑：程序博客网时间：2024/06/04 19:09
点击按钮，实现弹出多个按钮
package com.twac.animationtest3;import java.util.ArrayList;import java.util.List;import android.animation.ObjectAnimator;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.view.animation.AccelerateDecelerateInterpolator;import android.view.animation.BounceInterpolator;import android.widget.ImageView;public class MainActivity extends Activity implements OnClickListener {private ImageView mImageView;private int[] res = { R.id.img_main, R.id.img_0, R.id.img_1, R.id.img_2,R.id.img_3, R.id.img_4, R.id.img_5, R.id.img_6, R.id.img_7 };private List<ImageView> list = new ArrayList<ImageView>();private boolean flag = true;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);for (int i = 0; i < res.length; i++) {mImageView = (ImageView) findViewById(res[i]);mImageView.setOnClickListener(this);list.add(mImageView);}}@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.img_main:if (flag) {startAnim();} else {closeAnim();}//break;default:break;}}private void closeAnim() {for (int i = 1; i < res.length; i++) {ObjectAnimator animator = ObjectAnimator.ofFloat(list.get(i),"TranslationY", 200F * i,0f);animator.setDuration(1000);animator.setStartDelay(i*500);animator.setInterpolator(new AccelerateDecelerateInterpolator());animator.start();flag = true;}}private void startAnim() {for (int i = 1; i < res.length; i++) {ObjectAnimator animator = ObjectAnimator.ofFloat(list.get(i),"TranslationY", 0f, 200F * i);animator.setDuration(1000);animator.setStartDelay(i*800);animator.setInterpolator(new BounceInterpolator());animator.start();flag = false;}}}
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