up

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

@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<selector xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:state_pressed="false" android:drawable="@color/btn_write" />
-    <item android:state_pressed="true" android:drawable="@color/btn_write_press" />
-</selector>

app/src/main/res/layout-land/activity_book_info.xml

@@ -288,7 +288,7 @@
                 android:layout_width="0dp"
                 android:layout_height="match_parent"
                 android:layout_weight="1"
-                android:background="@drawable/selector_btn_write_bg"
+                android:background="?attr/selectableItemBackground"
                 android:clickable="true"
                 android:focusable="true"
                 android:gravity="center"

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

@@ -277,7 +277,7 @@
                 android:layout_width="0dp"
                 android:layout_height="match_parent"
                 android:layout_weight="1"
-                android:background="@drawable/selector_btn_write_bg"
+                android:background="?attr/selectableItemBackground"
                 android:clickable="true"
                 android:focusable="true"
                 android:gravity="center"