android 消息更新提示动画

转载地址:http://blog.csdn.net/xiaobijia/article/details/40738879

   在登陆应用时，信息有更新，为了引起用户注意，会有提示标签：

百度：

网易：

     如果给标签加入动画效果，会更加醒目，如淘宝：

本例效果：

使用属性动画实现，稍微修改就可以实现淘宝的效果

实现动画类：

 package com.example.swingaimation;

 import android.animation.Keyframe;
 import android.animation.ObjectAnimator;
 import android.animation.PropertyValuesHolder;
 import android.annotation.SuppressLint;
 import android.view.View;




 public class AnimationUtils {

     public static ObjectAnimator tada(View view) {
         return tada(view, 1f);
     }

     @SuppressLint("NewApi")
     public static ObjectAnimator tada(View view, float shakeFactor) {

         PropertyValuesHolder pvhScaleX = PropertyValuesHolder.ofKeyframe(View.SCALE_X,
                 Keyframe.ofFloat(0f, 1f),
                 Keyframe.ofFloat(.1f, .9f),
                 Keyframe.ofFloat(.2f, .9f),
                 Keyframe.ofFloat(.3f, 1.1f),
                 Keyframe.ofFloat(.4f, 1.1f),
                 Keyframe.ofFloat(.5f, 1.1f),
                 Keyframe.ofFloat(.6f, 1.1f),
                 Keyframe.ofFloat(.7f, 1.1f),
                 Keyframe.ofFloat(.8f, 1.1f),
                 Keyframe.ofFloat(.9f, 1.1f),
                 Keyframe.ofFloat(1f, 1f)
         );

         PropertyValuesHolder pvhScaleY = PropertyValuesHolder.ofKeyframe(View.SCALE_Y,
                 Keyframe.ofFloat(0f, 1f),
                 Keyframe.ofFloat(.1f, .9f),
                 Keyframe.ofFloat(.2f, .9f),
                 Keyframe.ofFloat(.3f, 1.1f),
                 Keyframe.ofFloat(.4f, 1.1f),
                 Keyframe.ofFloat(.5f, 1.1f),
                 Keyframe.ofFloat(.6f, 1.1f),
                 Keyframe.ofFloat(.7f, 1.1f),
                 Keyframe.ofFloat(.8f, 1.1f),
                 Keyframe.ofFloat(.9f, 1.1f),
                 Keyframe.ofFloat(1f, 1f)
         );

         PropertyValuesHolder pvhRotate = PropertyValuesHolder.ofKeyframe(View.ROTATION,
                 Keyframe.ofFloat(0f, 0f),
                 Keyframe.ofFloat(.1f, -3f * shakeFactor),
                 Keyframe.ofFloat(.2f, -3f * shakeFactor),
                 Keyframe.ofFloat(.3f, 3f * shakeFactor),
                 Keyframe.ofFloat(.4f, -3f * shakeFactor),
                 Keyframe.ofFloat(.5f, 3f * shakeFactor),
                 Keyframe.ofFloat(.6f, -3f * shakeFactor),
                 Keyframe.ofFloat(.7f, 3f * shakeFactor),
                 Keyframe.ofFloat(.8f, -3f * shakeFactor),
                 Keyframe.ofFloat(.9f, 3f * shakeFactor),
                 Keyframe.ofFloat(1f, 0)
         );

         return ObjectAnimator.ofPropertyValuesHolder(view, pvhScaleX, pvhScaleY, pvhRotate).
                 setDuration(1000);
     }

     @SuppressLint("NewApi")
     public static ObjectAnimator nope(View view) {
         int delta = view.getResources().getDimensionPixelOffset(R.dimen.activity_horizontal_margin);

         PropertyValuesHolder pvhTranslateX = PropertyValuesHolder.ofKeyframe(View.TRANSLATION_X,
                 Keyframe.ofFloat(0f, 0),
                 Keyframe.ofFloat(.10f, -delta),
                 Keyframe.ofFloat(.26f, delta),
                 Keyframe.ofFloat(.42f, -delta),
                 Keyframe.ofFloat(.58f, delta),
                 Keyframe.ofFloat(.74f, -delta),
                 Keyframe.ofFloat(.90f, delta),
                 Keyframe.ofFloat(1f, 0f)
         );

         return ObjectAnimator.ofPropertyValuesHolder(view, pvhTranslateX).
                 setDuration(500);
     }

 }

主类即调用类：

 package com.example.swingaimation;

 import android.os.Bundle;
 import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.view.View;
 import android.widget.ImageView;

 public class MainActivity extends Activity {
     //声明view
     private ImageView imageview;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
         //初始化view
         imageview = (ImageView) findViewById(R.id.imageview);

     }
     // 整体摇动的动画点击事件
     @SuppressLint("NewApi")
     public void wholeShake(View view) {
         AnimationUtils.tada(imageview).start();
     }
     // 左右摇摆的动画
     @SuppressLint("NewApi")
     public void lefToRightShake(View view) {
         AnimationUtils.nope(imageview).start();
     }
 }

参考：

消息更新提示动画 - 下载频道 - CSDN.NET
http://download.csdn.net/detail/xiaobijia/8115009