Android实现底部半透明弹出框PopUpWindow效果

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="#66fafafa" android:orientation="vertical"> <LinearLayout  android:layout_width="match_parent"  android:layout_height="122dp"  android:id="@+id/ll_popupwindow"  android:background="#ffffff"  android:layout_alignParentBottom="true"  android:orientation="vertical"  > <LinearLayout  android:layout_width="match_parent"  android:layout_height="wrap_content"  android:layout_marginTop="26dp"  android:orientation="horizontal">  <TextView   android:layout_width="0dp"   android:layout_height="wrap_content"   android:layout_weight="1"   android:id="@+id/popwindow_facebook"   android:drawableTop="@mipmap/gif_more_facebook"   android:drawablePadding="12dp"   android:gravity="center"   android:text="Facebook"   android:textColor="#4d4d4d"   android:textSize="12sp" />  <TextView   android:layout_width="0dp"   android:layout_height="wrap_content"   android:layout_weight="1"   android:id="@+id/popwindow_whatsapp"   android:drawableTop="@mipmap/gif_more_whatsapp"   android:drawablePadding="12dp"   android:gravity="center"   android:text="WhatsApp"   android:visibility="gone"   android:textColor="#4d4d4d"   android:textSize="12sp" />  <TextView   android:layout_width="0dp"   android:layout_height="wrap_content"   android:layout_weight="1"   android:id="@+id/popwindow_report"   android:drawableTop="@mipmap/gif_more_report"   android:drawablePadding="12dp"   android:gravity="center"   android:text="Report"   android:textColor="#4d4d4d"   android:textSize="12sp" /> </LinearLayout> </LinearLayout> </RelativeLayout>

/* * 在当前页面调用initPopUpWindow方法，底部弹出popUpWindow * 重点在popUpWindow的layout最外层布局设置android:background="#66fafafa" 半透明 * */ private void initPopUpWindow(View root, final String uuid, final String title){  Log.d("click","init popopop");  //inflate得到布局 ，底部弹出框的View  final View popView = LayoutInflater.from(mContext).inflate(    R.layout.layout_bottom_popwindow, null);  View rootView = root; // 当前页面的根布局  //创建popUpWindow对象 宽高占满页面  final PopupWindow popupWindow = new PopupWindow(popView,    WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT);  popupWindow.setTouchable(true);  // 设置弹出动画  popupWindow.setAnimationStyle(R.style.anim_edit_text_popup);  // 显示在根布局的底部  popupWindow.showAtLocation(rootView, Gravity.BOTTOM | Gravity.LEFT, 0,    0);  //点击底部弹出框之外的部分让popUpWindow 消失  popView.setOnTouchListener(new View.OnTouchListener() {   @Override   public boolean onTouch(View v, MotionEvent event) {    int height = popView.findViewById(R.id.ll_popupwindow).getTop();    int y=(int) event.getY();    if(event.getAction()==MotionEvent.ACTION_UP){     if(y<height){      popupWindow.dismiss();     }    }    return true;   }  });  //弹出框中控件的点击事件  TextView share_facebook= (TextView) popView.findViewById(R.id.popwindow_facebook);  share_facebook.setOnClickListener(new View.OnClickListener() {   @Override   public void onClick(View v) {    share_facebook(uuid,title);    popupWindow.dismiss();   }  });  final TextView share_whatsApp= (TextView) popView.findViewById(R.id.popwindow_whatsapp);  boolean whatsappFound = CheckUtils.isAppInstalled(mContext, "com.whatsapp");  if (whatsappFound) {   share_whatsApp.setVisibility(View.VISIBLE);   share_whatsApp.setOnClickListener(new View.OnClickListener() {    @Override    public void onClick(View v) {     share_whatsapp(uuid,title);    }   });  }  TextView report= (TextView) popView.findViewById(R.id.popwindow_report);  report.setOnClickListener(new View.OnClickListener() {   @Override   public void onClick(View v) {    Intent intent = new Intent(mContext, ReportActivity.class);    intent.putExtra("fromch", true);    intent.putExtra("tid", uuid);    mContext.startActivity(intent);    popupWindow.dismiss();<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android" > <translate  android:duration="100"  android:fromYDelta="0.0"  android:toYDelta="100%" /></set>   }  }); }

<style name="anim_edit_text_popup">  <item name="android:windowEnterAnimation">@anim/popup_in</item>  <item name="android:windowExitAnimation">@anim/popup_out</item></style>

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android" > <translate  android:duration="100"  android:fromYDelta="100.0%"  android:toYDelta="0.0" /></set>

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android" > <translate  android:duration="100"  android:fromYDelta="0.0"  android:toYDelta="100%" /></set>