<style name="ActionSheetDialogStyle" parent="@android:style/Theme.Dialog">
    <!-- 背景透明 -->
    <item name="android:windowBackground">@android:color/transparent</item>
    <item name="android:windowContentOverlay">@null</item>
    <!-- 浮于Activity之上 -->
    <item name="android:windowIsFloating">true</item>
    <!-- 邊框 -->
    <item name="android:windowFrame">@null</item>
    <!-- Dialog以外的區(qū)域模糊效果 -->
    <item name="android:backgroundDimEnabled">true</item>
    <!-- 無標題 -->
    <item name="android:windowNoTitle">true</item>
    <!-- 半透明 -->
    <item name="android:windowIsTranslucent">true</item>
    <!-- Dialog進入及退出動畫 -->
    <item name="android:windowAnimationStyle">@style/ActionSheetDialogAnimation</item>
  </style>
  <!-- ActionSheet進出動畫 -->
  <style name="ActionSheetDialogAnimation" parent="@android:style/Animation.Dialog">
    <item name="android:windowEnterAnimation">@anim/actionsheet_dialog_in</item>
    <item name="android:windowExitAnimation">@anim/actionsheet_dialog_out</item>
  </style>

<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
  android:duration="200"
  android:fromYDelta="100%"
  android:toYDelta="0" />

<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
  android:duration="200"
  android:fromYDelta="0"
  android:toYDelta="100%" />

private View inflate;
  private Dialog dialog;
  public void show(){
    dialog = new Dialog(oThis,R.style.ActionSheetDialogStyle);
    inflate = LayoutInflater.from(oThis).inflate(R.layout.fast_trade_view, null);
    dialog.setContentView(inflate);
    Window dialogWindow = dialog.getWindow();
    dialogWindow.setGravity( Gravity.BOTTOM);
    WindowManager.LayoutParams lp = dialogWindow.getAttributes();
    lp.y = 20;
    dialogWindow.setAttributes(lp);
    dialog.show();
  }