Android 属性动画监听事件与一个菜单的例子

简单监听事件

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package com.example.animation;   import android.animation.Animator; import android.animation.Animator.AnimatorListener; import android.animation.AnimatorListenerAdapter; import android.animation.AnimatorSet; import android.animation.ObjectAnimator; import android.animation.PropertyValuesHolder; import android.app.Activity; import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.animation.Animation; import android.view.animation.AnimationSet; import android.view.animation.TranslateAnimation; import android.widget.ImageView; import android.widget.Toast;   public class MainActivity extends Activity {       @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);           }           public void click(View view){         Toast.makeText(this, "click", Toast.LENGTH_SHORT).show();     }           public void move(View view ){         ImageView imageView=(ImageView)findViewById(R.id.imageView);         ObjectAnimator animator=new ObjectAnimator().ofFloat(imageView, "translationX", 0f,200f);         animator.setDuration(1000);         /**          *添加所有监听事件          */ //        animator.addListener(new AnimatorListener() { //          //          @Override //          public void onAnimationStart(Animator arg0) { //          } //          //          @Override //          public void onAnimationRepeat(Animator arg0) { //          } //          //          @Override //          public void onAnimationEnd(Animator arg0) { //              Toast.makeText(MainActivity.this, "animator is end!",Toast.LENGTH_SHORT).show(); //          } //          //          @Override //          public void onAnimationCancel(Animator arg0) { //          } //      });                   /**          * 按需添加          */         animator.addListener(new AnimatorListenerAdapter() {             @Override             public void onAnimationEnd(Animator animation) {                 // TODO Auto-generated method stub                 super.onAnimationEnd(animation);                 Toast.makeText(MainActivity.this, "animator is end!",Toast.LENGTH_SHORT).show();               }         });         animator.start();     }        }

看一个简单的例子

这是xml

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<frameLayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:paddingBottom="@dimen/activity_vertical_margin"     android:paddingLeft="@dimen/activity_horizontal_margin"     android:paddingRight="@dimen/activity_horizontal_margin"     android:paddingTop="@dimen/activity_vertical_margin"     tools:context="com.example.animator.MainActivity" >       <imageview android:id="@+id/imageView2" android:layout_width="50dp" android:layout_height="50dp" android:src="@drawable/image_b">       <imageview android:id="@+id/imageView3" android:layout_width="50dp" android:layout_height="50dp" android:src="@drawable/image_c">       <imageview android:id="@+id/imageView4" android:layout_width="50dp" android:layout_height="50dp" android:src="@drawable/image_d">       <imageview android:id="@+id/imageView5" android:layout_width="50dp" android:layout_height="50dp" android:src="@drawable/image_e">       <imageview android:id="@+id/imageView6" android:layout_width="50dp" android:layout_height="50dp" android:src="@drawable/image_f">       <imageview android:id="@+id/imageView7" android:layout_width="50dp" android:layout_height="50dp" android:src="@drawable/image_g">       <imageview android:id="@+id/imageView8" android:layout_width="50dp" android:layout_height="50dp" android:src="@drawable/image_h">           <imageview android:id="@+id/imageView1" android:layout_width="50dp" android:layout_height="50dp" android:src="@drawable/image_a">         </frameLayout></imageview></imageview></imageview></imageview></imageview></imageview></imageview></imageview>

这是主程序

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package com.example.animator;   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.BounceInterpolator; import android.widget.ImageView; import android.widget.Toast;   public class MainActivity extends Activity implements OnClickListener {       private int[] res = { R.id.imageView1, R.id.imageView2, R.id.imageView3,             R.id.imageView4, R.id.imageView5, R.id.imageView6, R.id.imageView7,             R.id.imageView8 };     private List<imageview> imageViewList = new ArrayList<imageview>();     private boolean isOpen = false;       @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);           for (int i = 0; i < res.length; i++) {             ImageView imageView = (ImageView) findViewById(res[i]);             imageView.setOnClickListener(this);             imageViewList.add(imageView);         }     }       @Override     public void onClick(View view) {         switch (view.getId()) {         case R.id.imageView1:             if (!isOpen) {                 startAnim();             } else {                 closeAnim();             }             break;           default:             Toast.makeText(this, "you click item!", Toast.LENGTH_SHORT).show();             break;         }     }       private void startAnim() {         for (int i = 1; i < res.length; i++) {             ObjectAnimator animator = ObjectAnimator.ofFloat(                     imageViewList.get(i), "translationY", 0f, i * 150);             animator.setDuration(500);             // 动画差值器， Interpolator             // 被用来修饰动画效果，定义动画的变化率，可以使存在的动画效果accelerated(加速)，decelerated(减速),repeated(重复),bounced(弹跳)等。             animator.setInterpolator(new BounceInterpolator());             animator.setStartDelay(i * 350);             animator.start();             isOpen = true;         }     }       private void closeAnim() {         for (int i = 1; i < res.length; i++) {             ObjectAnimator animator = ObjectAnimator.ofFloat(                     imageViewList.get(i), "translationY", i * 150, 0f);             animator.setDuration(500);             animator.setInterpolator(new BounceInterpolator());             animator.setStartDelay(i * 350);             animator.start();             isOpen = false;         }     }   } </imageview></imageview>

 

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