Prepare item selection

app/build.gradle

@@ -45,6 +45,7 @@ repositories {
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
 
+    def support_version = "1.0.0-alpha1"
     def androidx_version = "2.0.0-alpha1"
     def javamail_version = "1.6.0"
     def jsoup_version = "1.11.3"
@@ -52,13 +53,13 @@ dependencies {
     // https://developer.android.com/topic/libraries/support-library/revisions.html
     // https://developer.android.com/topic/libraries/support-library/packages
     // https://developer.android.com/topic/libraries/support-library/refactor
-    implementation "androidx.appcompat:appcompat:1.0.0-alpha1"
-    implementation "androidx.constraintlayout:constraintlayout:1.1.0"
-    implementation "androidx.recyclerview:recyclerview:1.0.0-alpha1"
-    implementation "com.google.android.material:material:1.0.0-alpha1"
-    implementation "androidx.browser:browser:1.0.0-alpha1"
+    implementation "androidx.appcompat:appcompat:$support_version"
+    implementation "androidx.recyclerview:recyclerview:$support_version"
+    implementation "com.google.android.material:material:$support_version"
+    implementation "androidx.browser:browser:$support_version"
 
     // https://developer.android.com/topic/libraries/architecture/adding-components.html
+    implementation "androidx.constraintlayout:constraintlayout:$androidx_version"
     implementation "androidx.lifecycle:lifecycle-extensions:$androidx_version"
     implementation "androidx.room:room-runtime:$androidx_version"
     implementation "androidx.paging:paging-runtime:$androidx_version"

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

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

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

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

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

@@ -2,8 +2,7 @@
 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:layout_marginBottom="6dp">
+    android:layout_height="wrap_content">
 
     <ImageView
         android:id="@+id/ivPrimary"
@@ -95,6 +94,7 @@
         android:id="@+id/vSeparator"
         android:layout_width="match_parent"
         android:layout_height="1dp"
+        android:layout_marginBottom="6dp"
         android:layout_marginTop="6dp"
         android:background="?attr/colorSeparator"
         app:layout_constraintStart_toStartOf="parent"

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

@@ -2,8 +2,7 @@
 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:layout_marginBottom="6dp">
+    android:layout_height="wrap_content">
 
     <ImageView
         android:id="@+id/ivEdit"
@@ -108,6 +107,7 @@
         android:id="@+id/vSeparator"
         android:layout_width="match_parent"
         android:layout_height="1dp"
+        android:layout_marginBottom="6dp"
         android:layout_marginTop="6dp"
         android:background="?attr/colorSeparator"
         app:layout_constraintStart_toStartOf="parent"

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

@@ -2,8 +2,7 @@
 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:layout_marginBottom="6dp">
+    android:layout_height="wrap_content">
 
     <ImageView
         android:id="@+id/ivPrimary"
@@ -69,6 +68,7 @@
         android:id="@+id/vSeparator"
         android:layout_width="match_parent"
         android:layout_height="1dp"
+        android:layout_marginBottom="6dp"
         android:layout_marginTop="6dp"
         android:background="?attr/colorSeparator"
         app:layout_constraintStart_toStartOf="parent"

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

@@ -3,7 +3,7 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:layout_marginBottom="6dp">
+    android:background="?attr/drawableItemBackground">
 
     <TextView
         android:id="@+id/tvFrom"
@@ -94,6 +94,7 @@
         android:id="@+id/vSeparator"
         android:layout_width="match_parent"
         android:layout_height="1dp"
+        android:layout_marginBottom="6dp"
         android:layout_marginTop="6dp"
         android:background="?attr/colorSeparator"
         app:layout_constraintStart_toStartOf="parent"

app/src/main/res/values/colors.xml

@@ -8,12 +8,14 @@
     <color name="colorActionForegroundDisabled">#ccc</color>
 
     <color name="lightColorUnread">#000</color>
+    <color name="lightColorItemSelected">#ccc</color>
     <color name="lightColorSeparator">#ffaaaaaa</color>
     <color name="lightColorDrawerScrim">#99000000</color>
     <color name="lightColorDrawerText">#111</color>
     <color name="lightColorDrawerBackground">#eee</color>
 
     <color name="darkColorUnread">#fff</color>
+    <color name="darkColorItemSelected">#555</color>
     <color name="darkColorSeparator">#ff878787</color>
     <color name="darkColorDrawerScrim">#997f7f7f</color>
     <color name="darkColorDrawerText">#fff</color>

app/src/main/res/values/styles.xml

@@ -4,6 +4,7 @@
     <attr name="colorDrawerScrim" format="reference" />
     <attr name="colorDrawerText" format="reference" />
     <attr name="colorDrawerBackground" format="reference" />
+    <attr name="drawableItemBackground" format="reference" />
 
     <style name="AppThemeLight" parent="Theme.AppCompat.Light.DarkActionBar">
         <item name="android:windowDisablePreview">true</item>
@@ -17,6 +18,8 @@
         <item name="colorDrawerScrim">@color/lightColorDrawerScrim</item>
         <item name="colorDrawerText">@color/lightColorDrawerText</item>
         <item name="colorDrawerBackground">@color/lightColorDrawerBackground</item>
+
+        <item name="drawableItemBackground">@drawable/item_background_light</item>
     </style>
 
     <style name="AppThemeDark" parent="Theme.AppCompat">
@@ -31,6 +34,8 @@
         <item name="colorDrawerScrim">@color/darkColorDrawerScrim</item>
         <item name="colorDrawerText">@color/darkColorDrawerText</item>
         <item name="colorDrawerBackground">@color/darkColorDrawerBackground</item>
+
+        <item name="drawableItemBackground">@drawable/item_background_dark</item>
     </style>
 
     <style name="Theme.Transparent" parent="Theme.AppCompat">