app: harden backup execution

Validate persisted state and destination boundaries, make interruption
and mirror deletion explicit, and keep scheduled work singular.

1 files changed, 10 insertions, 21 deletions

diff --git a/app/src/main/res/layout/item_dir.xml b/app/src/main/res/layout/item_dir.xml
index 651224c..4af38e3 100644
--- a/app/src/main/res/layout/item_dir.xml
+++ b/app/src/main/res/layout/item_dir.xml
@@ -1,27 +1,16 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:id="@+id/dirName"
     style="@style/Widget.Rsend.Card"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:orientation="horizontal"
-    android:gravity="center_vertical"
     android:clickable="true"
+    android:drawablePadding="@dimen/space_m"
+    android:ellipsize="end"
     android:focusable="true"
-    android:foreground="?attr/selectableItemBackground">
-
-    <ImageView
-        android:layout_width="24dp"
-        android:layout_height="24dp"
-        android:layout_marginEnd="@dimen/space_m"
-        android:src="@drawable/ic_folder"
-        android:contentDescription="@null" />
-
-    <TextView
-        android:id="@+id/dirName"
-        android:layout_width="0dp"
-        android:layout_height="wrap_content"
-        android:layout_weight="1"
-        android:maxLines="1"
-        android:ellipsize="end"
-        android:textAppearance="@style/TextAppearance.Rsend.Title" />
-</LinearLayout>
+    android:foreground="?attr/selectableItemBackground"
+    android:gravity="center_vertical"
+    android:maxLines="1"
+    android:textAppearance="@style/TextAppearance.Rsend.Title"
+    app:drawableStartCompat="@drawable/ic_folder" />