Android custom dialog example code pops up from bottom to top

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public class BottomDialog extends Dialog {
  @BindView()
  TextView chang;
  @BindView()
  TextView exite;
  @BindView()
  TextView cancel;
  private BottomDialogAlertListener listener;
  private Object param;
  private String text1;
  private String text2;
  private String cansleText;
  public BottomDialog(Context context, BottomDialogAlertListener listener, Object param, String text1, String text2, String cansleText) {
    super(context, .dialog1);
     = listener;
     = param;
    this.text1 = text1;
    this.text2 = text2;
     = cansleText;
  }
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    (savedInstanceState);
    setContentView(.dialog_bottom);
    (this);
    setCancelable(false);
    setCanceledOnTouchOutside(false);
    if (listener != null) {
      (this, param);
    }
    setView();
  }
  private void setView() {
    (text1);
    (text2);
    (cansleText);
  }
  @OnClick({, , })
  public void onViewClicked(View view) {
    switch (()) {
      case :
        if (listener != null) {
          (this,param);
        }
        break;
      case :
        if (listener != null) {
          (this,param);
        }
        break;
      case :
        if (listener != null) {
          (this,param);
        }
        break;
    }
  }
  @Override
  public void show() {
    ();
    /**
      * Set the width to full screen, and set it behind the show
      */
     layoutParams = getWindow().getAttributes();
     = ;
     = .MATCH_PARENT;
     = .WRAP_CONTENT;
    getWindow().getDecorView().setPadding(0, 0, 0, 0);
    getWindow().setAttributes(layoutParams);
  }
}
 <!-- Customizedialogstyle -->
<style name="dialog1" parent="@android:style/">
  <item name="android:windowFrame">@null</item>
  <item name="android:windowIsFloating">true</item>
  <item name="android:windowIsTranslucent">false</item>
  <item name="android:windowNoTitle">true</item>
  <item name="android:background">@android:color/transparent</item>
  <item name="android:windowBackground">@android:color/transparent</item>
  <item name="android:backgroundDimEnabled">true</item>
  <item name="android:layout_width">match_parent</item>
  <!-- Enter and exit animation -->
  <item name="android:windowAnimationStyle">@style/BottomDialogAnimation</item>
</style>
 <!-- Enter and exit animation -->
<style name="BottomDialogAnimation">
  <!--Enter -->
  <item name="android:windowEnterAnimation">@anim/dialog_enter_from_bottom</item>
  <!--quit-->
  <item name="android:windowExitAnimation">@anim/dialog_exit_to_bottom</item>
</style>
 <!--dialog_enter_from_bottom -->
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:andro>
  <translate
    android:duration="200"
    android:fromYDelta="100%p"
    android:toYDelta="0"></translate>
</set>
 <!--dialog_exit_to_bottom -->
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:andro>
  <translate
    android:duration="200"
    android:fromYDelta="0"
    android:toYDelta="100%p"></translate>
</set>