reformat code

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

@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout
         xmlns:android="http://schemas.android.com/apk/res/android"
-              xmlns:app="http://schemas.android.com/apk/res-auto"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
-              android:orientation="vertical"
+        android:orientation="vertical"
-              android:layout_width="match_parent"
+        android:layout_width="match_parent"
-              android:layout_height="match_parent">
+        android:layout_height="match_parent">
 
     <io.legado.app.ui.widget.TitleBar
             android:id="@+id/title_bar"

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

@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout
         xmlns:android="http://schemas.android.com/apk/res/android"
-              xmlns:app="http://schemas.android.com/apk/res-auto"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
-              android:id="@+id/ll_content"
+        android:id="@+id/ll_content"
-              android:layout_width="match_parent"
+        android:layout_width="match_parent"
-              android:layout_height="match_parent"
+        android:layout_height="match_parent"
-              android:orientation="vertical">
+        android:orientation="vertical">
 
     <io.legado.app.ui.widget.TitleBar
             android:id="@+id/title_bar"

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

@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout
         xmlns:android="http://schemas.android.com/apk/res/android"
-              android:layout_width="match_parent"
+        android:layout_width="match_parent"
-              android:layout_height="wrap_content" xmlns:app="http://schemas.android.com/apk/res-auto"
+        android:layout_height="wrap_content" xmlns:app="http://schemas.android.com/apk/res-auto"
-              android:background="@color/background"
+        android:background="@color/background"
-              android:padding="16dp"
+        android:padding="16dp"
-              android:orientation="horizontal"
+        android:orientation="horizontal"
-              android:gravity="center_vertical">
+        android:gravity="center_vertical">
 
     <io.legado.app.lib.theme.view.ATECheckBox
             android:id="@+id/cb_book_source"

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

@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout
         xmlns:android="http://schemas.android.com/apk/res/android"
-                xmlns:tools="http://schemas.android.com/tools"
+        xmlns:tools="http://schemas.android.com/tools"
-                android:layout_width="match_parent"
+        android:layout_width="match_parent"
-                android:layout_height="?android:attr/listPreferredItemHeight"
+        android:layout_height="?android:attr/listPreferredItemHeight"
-                android:padding="6dip">
+        android:padding="6dip">
 
     <ImageView
             android:id="@+id/icon"

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

@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <io.legado.app.lib.theme.view.ATETextInputLayout
         xmlns:android="http://schemas.android.com/apk/res/android"
-                                                 android:id="@+id/textInputLayout"
+        android:id="@+id/textInputLayout"
-                                                 android:layout_width="match_parent"
+        android:layout_width="match_parent"
-                                                 android:layout_height="wrap_content">
+        android:layout_height="wrap_content">
 
     <io.legado.app.lib.theme.view.ATEEditText
             android:id="@+id/editText"

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

@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout
         xmlns:android="http://schemas.android.com/apk/res/android"
-              android:layout_width="wrap_content"
+        android:layout_width="wrap_content"
-              android:layout_height="wrap_content"
+        android:layout_height="wrap_content"
-              android:gravity="center_horizontal"
+        android:gravity="center_horizontal"
-              android:orientation="vertical">
+        android:orientation="vertical">
 
     <androidx.appcompat.widget.AppCompatImageView
             android:id="@+id/iv_error_image"

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

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <ImageView
         android:id="@+id/preview"
-           xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:android="http://schemas.android.com/apk/res/android"
-           android:layout_width="48dp"
+        android:layout_width="48dp"
-           android:layout_height="48dp"/>
+        android:layout_height="48dp"/>

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

@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout
         xmlns:android="http://schemas.android.com/apk/res/android"
-              android:layout_width="wrap_content"
+        android:layout_width="wrap_content"
-              android:layout_height="wrap_content"
+        android:layout_height="wrap_content"
-              android:gravity="center_horizontal"
+        android:gravity="center_horizontal"
-              android:orientation="vertical">
+        android:orientation="vertical">
 
     <androidx.core.widget.ContentLoadingProgressBar
             android:id="@+id/loading_progress"