修复PopupWindow在android5以下关闭不了的问题

app/src/main/java/cn/yunliyunwai/beyondclouds/ui/popup/PopupAddMenu.java

@@ -4,6 +4,7 @@ import android.content.Context;
 import android.view.LayoutInflater;
 import android.widget.PopupWindow;
 
+import cn.yunliyunwai.beyondclouds.R;
 import cn.yunliyunwai.beyondclouds.databinding.PopupMenuAddBinding;
 import cn.yunliyunwai.beyondclouds.util.SizeUtils;
 
@@ -14,6 +15,7 @@ public class PopupAddMenu extends PopupWindow {
         super(SizeUtils.toPx(130), SizeUtils.toPx(235));
         setOutsideTouchable(true);
         setFocusable(true);
+        setBackgroundDrawable(context.getResources().getDrawable(R.drawable.background_fix_popup_window_under_android_5));
         binding = PopupMenuAddBinding.inflate(LayoutInflater.from(context));
         setContentView(binding.getRoot());
     }

app/src/main/res/drawable/background_fix_popup_window_under_android_5.xml

+<?xml version="1.0" encoding="utf-8"?>
+<shape
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="#00000000" />
+</shape>
\ No newline at end of file

app/src/main/res/layout/beyond_text_icon_button.xml

@@ -6,16 +6,16 @@
 
     <cn.yunliyunwai.beyondclouds.view.BeyondTextIcon
         android:id="@+id/txt_icon"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:background="@null"
         android:text="@string/icon_scan"
+        android:textColor="#ffffff"
         android:textSize="18dp"
         android:textStyle="bold"
-        android:textColor="#ffffff"
-        android:background="@null"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content" />
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
     <TextView
         android:id="@+id/txt_title"
         android:text="扫一扫"