Android 属性动画实现一个简单的PopupWindow

1.今天看到一个PopupWindow的效果如图：

2.其实就是属性动画的一个简单实用就ObjectAnimator就可以的，想实现更多，更灵活的可以用ValueAnimator

3.直接上代码：

　　

 public class MainActivity extends Activity implements OnClickListener {

     private LinearLayout layout1, layout2;
     private Button btnShow, btnHint;

     private int screenWidth, screenHeight;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
         initView();
         addListener();

     }

     private void addListener() {
         btnShow.setOnClickListener(this);
         btnHint.setOnClickListener(this);
     }

     private void initView() {
         screenWidth = getWindowWidth(MainActivity.this);
         screenHeight = getWindowHeigh(MainActivity.this);
         layout1 = (LinearLayout) findViewById(R.id.layout1);
         btnShow = (Button) findViewById(R.id.layout_button);
         layout2 = (LinearLayout) findViewById(R.id.layout2);
         btnHint = (Button) findViewById(R.id.btnhint);
     }

     @SuppressLint("NewApi")
     private void initShowMeanuAnimation() {

         System.out.println("执行没有");
         ObjectAnimator animator1 = ObjectAnimator.ofFloat(layout1, "scaleX",
                 1.0f, 0.8f);
         animator1.setDuration(350);
         ObjectAnimator animator2 = ObjectAnimator.ofFloat(layout1, "scaleY",
                 1.0f, 0.8f);
         animator2.setDuration(350);
         ObjectAnimator animator3 = ObjectAnimator.ofFloat(layout1, "alpha",
                 1.0f, 0.5f);
         animator3.setDuration(350);
         ObjectAnimator animator4 = ObjectAnimator.ofFloat(layout1, "rotationX",
                 0f, 12f);
         animator4.setDuration(200);
         ObjectAnimator animator5 = ObjectAnimator.ofFloat(layout1, "rotationX",
                 12f, 0f);
         animator5.setDuration(300);
         animator5.setStartDelay(250);
         ObjectAnimator animator6 = ObjectAnimator.ofFloat(layout1,
                 "translationY", 0, -screenHeight * 0.1f);
         animator6.setDuration(350);

         ObjectAnimator animator7 = ObjectAnimator.ofFloat(layout2,
                 "translationY", 300, 0);
         animator7.setDuration(350);

         animator7.addListener(new AnimatorListenerAdapter() {

             @Override
             public void onAnimationStart(Animator animation) {
                 super.onAnimationStart(animation);

                 layout2.setVisibility(View.VISIBLE);

             }

         });

         AnimatorSet set = new AnimatorSet();
         set.playTogether(animator1, animator2, animator3, animator4, animator5,
                 animator6, animator7);

         set.start();
     }

     /**
      * 隐藏PopupWindow
      */
     @SuppressLint("NewApi")
     public void initHideMeanuAnimation() {

         ObjectAnimator animator1 = ObjectAnimator.ofFloat(layout1, "scaleX",
                 0.8f, 1.0f);
         animator1.setDuration(350);
         ObjectAnimator animator2 = ObjectAnimator.ofFloat(layout1, "scaleY",
                 0.8f, 1.0f);
         animator2.setDuration(350);
         ObjectAnimator animator3 = ObjectAnimator.ofFloat(layout1, "alpha",
                 0.5f, 1.0f);
         animator3.setDuration(350);
         ObjectAnimator animator4 = ObjectAnimator.ofFloat(layout1, "rotationX",
                 0f, 12f);
         animator4.setDuration(200);
         ObjectAnimator animator5 = ObjectAnimator.ofFloat(layout1, "rotationX",
                 12f, 0f);
         animator5.setDuration(300);
         animator5.setStartDelay(250);
         ObjectAnimator animator6 = ObjectAnimator.ofFloat(layout1,
                 "translationY", -screenHeight * 0.1f, 0);
         animator6.setDuration(350);

         ObjectAnimator animator7 = ObjectAnimator.ofFloat(layout2,
                 "translationY", 0, 300);
         animator7.setDuration(350);

         animator7.addListener(new AnimatorListenerAdapter() {

             @Override
             public void onAnimationEnd(Animator animation) {
                 super.onAnimationEnd(animation);
                 layout2.setVisibility(View.INVISIBLE);

             }

         });

         AnimatorSet set1 = new AnimatorSet();
         set1.playTogether(animator1, animator2, animator3, animator4,
                 animator5, animator6, animator7);

         set1.start();

     }

     @Override
     public void onClick(View v) {
         switch (v.getId()) {
         case R.id.layout_button:
             initShowMeanuAnimation();
             break;
         case R.id.btnhint:
             initHideMeanuAnimation();
             break;

         }

     }

     public static int getWindowWidth(Context context) {
         // 获取屏幕分辨率
         WindowManager wm = (WindowManager) (context
                 .getSystemService(Context.WINDOW_SERVICE));
         DisplayMetrics dm = new DisplayMetrics();
         wm.getDefaultDisplay().getMetrics(dm);
         int mScreenWidth = dm.widthPixels;
         return mScreenWidth;

     }

     public static int getWindowHeigh(Context context) {
         // 获取屏幕分辨率
         WindowManager wm = (WindowManager) (context
                 .getSystemService(Context.WINDOW_SERVICE));
         DisplayMetrics dm = new DisplayMetrics();
         wm.getDefaultDisplay().getMetrics(dm);
         int mScreenHeigh = dm.heightPixels;
         return mScreenHeigh;
     }
 }

代码有重复的地方就没有合并了。

源码下载:下载