android actionsheet动画

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1.首先在res/anim文件夹下创建slide_up.xml和slide_down.xml(文件名随意),代码如下:

slide_up.xml

  1. <set xmlns:android="http://schemas.android.com/apk/res/android"  
  2.      android:interpolator="@android:anim/accelerate_decelerate_interpolator" >  
  3.   
  4. <translate android:duration="500"  
  5.            android:fromYDelta="100%p"  
  6.            android:toYDelta="0%p" />  
  7.   
  8. </set>  

slide_down.xml
  1. <set xmlns:android="http://schemas.android.com/apk/res/android"  
  2.      android:interpolator="@android:anim/accelerate_decelerate_interpolator">  
  3.   
  4.     <translate android:duration="200"  
  5.                android:fromYDelta="0%p"  
  6.                android:toYDelta="100%p" />  
  7.   
  8. </set>  

2.然后在res/values文件夹下的styleds文件(没有的话就新建一个),增加以下代码:
  1. <resources>  
  2.     <style name="DialogAnimation">  
  3.         <item name="android:windowEnterAnimation">@anim/slide_up</item>  
  4.         <item name="android:windowExitAnimation">@anim/slide_down</item>  
  5.     </style>  
  6. </resources>  
        <style name="mydialog" parent="@android:style/Theme.Dialog">  
            <item name="android:windowFrame">@null</item>  
            <item name="android:windowIsFloating">true</item>  
            <item name="android:windowIsTranslucent">true</item>  
            <item name="android:windowNoTitle">true</item>  
            <item name="android:backgroundDimEnabled">false</item>  
            <item name="android:windowBackground">@android:color/transparent</item>
        </style> 

3.最后,在dialog弹出之前,使用刚刚实现的动画效果:

Dialog dialog = new Dialog(mContext, R.style.mydialog);
                dialog.setContentView(R.layout.dialog_camera);
                LayoutParams layoutParams = dialog.getWindow().getAttributes();
                layoutParams.y=10;
                layoutParams.gravity = Gravity.TOP;
                layoutParams.width = LayoutParams.MATCH_PARENT;
                dialog.getWindow().getAttributes().windowAnimations = R.style.DialogAnimation;
                dialog.show();

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