2013.08.29——— android ObjectAnimator
16lz
2021-12-04
2013.08.29——— android ObjectAnimator
参考:http://mzh3344258.blog.51cto.com/1823534/886522
http://blog.csdn.net/droyon/article/details/8689249
http://my.eoe.cn/682121/archive/2288.html
参考:http://mzh3344258.blog.51cto.com/1823534/886522
http://blog.csdn.net/droyon/article/details/8689249
http://my.eoe.cn/682121/archive/2288.html
public class BetweenAnimationActivity extends Activity implements OnClickListener {/**资源声明*/private Button startNext = null ; private ListView firstPage = null ;private ListView secondPage = null ;/**列表项声明*/private static final String firstItem[] = {"海阔人生","光辉岁月","无尽空虚","真的爱你","岁月无声","灰色轨迹","再见理想"};private static final String secondItem[] = {"洗唰唰","爱啦啦","喜欢你","娃哈哈","小马果","大坏蛋","冷雨夜"};/**列表页面切换动画插值器声明一*/private Interpolator accelerator = new AccelerateInterpolator(); private Interpolator decelerator = new DecelerateInterpolator(); /**动画插值器二:效果五与效果六都为以下插值器*/ private Interpolator accelerator1= new CycleInterpolator(45f); private Interpolator decelerator1= new OvershootInterpolator(); /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); init(); }/** * 初始化实现 */private void init(){/**资源定位,添加监听*/startNext = (Button)findViewById(R.id.startNext);startNext.setOnClickListener(this);firstPage = (ListView)findViewById(R.id.firstPage);secondPage = (ListView)findViewById(R.id.secondPage);ArrayAdapter<String> firstAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,firstItem);ArrayAdapter<String> secondAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, secondItem);firstPage.setAdapter(firstAdapter);secondPage.setAdapter(secondAdapter);}@Overridepublic void onClick(View v) {changePage();}/* * 实现列表页面切换 */private void changePage() {final ListView visiable ;final ListView invisiable ;if(firstPage.getVisibility() == View.GONE){visiable = secondPage ; invisiable = firstPage ; }else{visiable = firstPage ; invisiable = secondPage ; }/* * 这个地方大家可能看到了ObjectAnimator这个类,一开始我也不知道是什么东西,很简单,查官方文档, * 官方文档中的解释一堆英文,我一直说的,我英文烂的要死,但不怕,只要你想,就肯定可以查出来的,大家 * 只看一句:该类是 ValueAnimator的子类,可以根据给定的属性名称给目标对象设置动画参数 *///效果一(此处效果顺序与效果图一一对应) /*final ObjectAnimator invisToVis = ObjectAnimator.ofFloat(invisiable, "rotationX",-90f, 0f); ObjectAnimator visToInvis = ObjectAnimator.ofFloat(visiable, "rotationX", 0f, 90f);*///效果二 final ObjectAnimator invisToVis = ObjectAnimator.ofFloat(invisiable, "rotationY",-90f, 0f); ObjectAnimator visToInvis = ObjectAnimator.ofFloat(visiable, "rotationY", 0f, 90f);//效果三(这个地方的alpha属性值大家只记一点:值越大越不透明就可以了!!!) /*final ObjectAnimator invisToVis = ObjectAnimator.ofFloat(invisiable, "alpha", 0.0f, 1.0f ); ObjectAnimator visToInvis = ObjectAnimator.ofFloat(visiable, "alpha", 1.0f, 0.0f );*/ /* *效果四(此于是我犯的一个错误,很天真的以为应该也有rotationZ属性名称,其实是错的, *在ofFloat参数中并无此属性名称,但大家还是可以看到列表正常,其实显示 效果很不正常了 *因为后台已经报错,但应用仍然不会停止 ,照常运行,但效果仅仅是两个ListView直接替换, *并无任何动画添加到其中,这个地方大家注意下): * ObjectAnimator.ofFloat(invisiable, "rotationZ",-90f, 0f); */ visToInvis.setDuration(500); visToInvis.setInterpolator(accelerator); invisToVis.setDuration(500); invisToVis.setInterpolator(decelerator); /* *这个地方记录下,下面这个监听器小马第一次见到,查阅官方文档解释如下: *此监听来监听动画的生命周期如:开始、结束、正在播放、循环播放等 , *此处切记: Animation是不可以监听动画的,它只负责动画的 */ visToInvis.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator anim) { /* * 列举几个动画的监听: * 一:anim.isRunning(){//TODO} * 二:anim.isStarted(){//TODO} * 三:anim.end(){//TODO} */ visiable.setVisibility(View.GONE); invisToVis.start(); invisiable.setVisibility(View.VISIBLE); } }); visToInvis.start();}}
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