Move encrypt decrypt operations in own starter activity

OpenKeychain/src/main/res/layout/encrypt_decrypt_overview_fragment.xml

@@ -12,7 +12,44 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginTop="16dp"
-        android:text="@string/section_decrypt_files" />
+        android:text="@string/section_encrypt" />
+
+    <TextView
+        android:id="@+id/encrypt_files"
+        android:paddingLeft="8dp"
+        android:paddingRight="8dp"
+        android:textAppearance="?android:attr/textAppearanceMedium"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:minHeight="?android:attr/listPreferredItemHeight"
+        android:clickable="true"
+        style="@style/SelectableItem"
+        android:text="@string/btn_encrypt_files"
+        android:drawableRight="@drawable/ic_action_collection"
+        android:drawablePadding="8dp"
+        android:gravity="center_vertical" />
+
+    <TextView
+        android:id="@+id/encrypt_text"
+        android:paddingLeft="8dp"
+        android:paddingRight="8dp"
+        android:textAppearance="?android:attr/textAppearanceMedium"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:minHeight="?android:attr/listPreferredItemHeight"
+        android:clickable="true"
+        style="@style/SelectableItem"
+        android:text="@string/btn_encrypt_text"
+        android:drawableRight="@drawable/ic_action_copy"
+        android:drawablePadding="8dp"
+        android:gravity="center_vertical" />
+
+    <TextView
+        style="@style/SectionHeader"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:text="@string/section_decrypt" />
 
     <TextView
         android:id="@+id/decrypt_files"
@@ -32,15 +69,7 @@
     <View
         android:layout_width="match_parent"
         android:layout_height="1dip"
-        android:background="?android:attr/listDivider"
-        android:layout_marginBottom="8dp" />
-
-    <TextView
-        style="@style/SectionHeader"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="32dp"
-        android:text="@string/section_decrypt_text" />
+        android:background="?android:attr/listDivider" />
 
     <LinearLayout
         android:id="@+id/decrypt_from_clipboard"

OpenKeychain/src/main/res/values/strings.xml

@@ -62,6 +62,8 @@
     <string name="section_decrypt_files">"Files"</string>
     <string name="section_decrypt_text">"Text"</string>
     <string name="section_certs">"Certificates"</string>
+    <string name="section_encrypt">"Encrypt"</string>
+    <string name="section_decrypt">"Decrypt"</string>
 
     <!-- button -->
     <string name="btn_decrypt_verify_file">"Decrypt, verify, and save file"</string>
@@ -82,9 +84,11 @@
     <string name="btn_create_key">"Create key"</string>
     <string name="btn_add_files">"Add file(s)"</string>
     <string name="btn_add_share_decrypted_text">"Share decrypted text"</string>
-    <string name="btn_decrypt_clipboard">"Decrypt from clipboard"</string>
+    <string name="btn_decrypt_clipboard">"Decrypt text from clipboard"</string>
     <string name="btn_decrypt_and_verify">"and verify signatures"</string>
     <string name="btn_decrypt_files">"Decrypt files"</string>
+    <string name="btn_encrypt_files">"Encrypt files"</string>
+    <string name="btn_encrypt_text">"Encrypt text"</string>
 
     <!-- menu -->
     <string name="menu_preferences">"Settings"</string>
@@ -584,9 +588,7 @@
 
     <!-- Navigation Drawer -->
     <string name="nav_keys">"Keys"</string>
-    <string name="nav_encrypt_text">"Encrypt text"</string>
-    <string name="nav_encrypt_files">"Encrypt files"</string>
-    <string name="nav_decrypt">"Decrypt"</string>
+    <string name="nav_encrypt_decrypt">"Encrypt/Decrypt"</string>
     <string name="nav_apps">"Apps"</string>
     <string name="drawer_open">"Open navigation drawer"</string>
     <string name="drawer_close">"Close navigation drawer"</string>