mark selected grid items with a check

Author: tibbi

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/adapters/ItemsAdapter.kt

@@ -40,7 +40,11 @@ import com.simplemobiletools.filemanager.pro.helpers.*
 import com.simplemobiletools.filemanager.pro.interfaces.ItemOperationsListener
 import com.simplemobiletools.filemanager.pro.models.ListItem
 import com.stericson.RootTools.RootTools
+import kotlinx.android.synthetic.main.item_file_dir_grid.view.*
 import kotlinx.android.synthetic.main.item_file_dir_list.view.*
+import kotlinx.android.synthetic.main.item_file_dir_list.view.item_frame
+import kotlinx.android.synthetic.main.item_file_dir_list.view.item_icon
+import kotlinx.android.synthetic.main.item_file_dir_list.view.item_name
 import kotlinx.android.synthetic.main.item_section.view.*
 import java.io.Closeable
 import java.io.File
@@ -714,6 +718,11 @@ class ItemsAdapter(activity: SimpleActivity, var listItems: MutableList<ListItem
                 item_date?.setTextColor(textColor)
                 item_date?.setTextSize(TypedValue.COMPLEX_UNIT_PX, smallerFontSize)
 
+                item_check?.beVisibleIf(isSelected)
+                if (isSelected) {
+                    item_check?.background?.applyColorFilter(primaryColor)
+                }
+
                 if (listItem.isDirectory) {
                     item_icon.setImageDrawable(folderDrawable)
                     item_details?.text = getChildrenCnt(listItem)

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/fragments/ItemsFragment.kt

@@ -421,7 +421,7 @@ class ItemsFragment : Fragment(), ItemOperationsListener, Breadcrumbs.Breadcrumb
 
     private fun setupGridLayoutManager() {
         val layoutManager = mView.items_list.layoutManager as MyGridLayoutManager
-        layoutManager.spanCount = 3
+        layoutManager.spanCount = 4
     }
 
     private fun setupListLayoutManager() {

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

@@ -8,14 +8,16 @@
     android:clickable="true"
     android:focusable="true"
     android:foreground="@drawable/selector"
+    android:paddingStart="@dimen/small_margin"
     android:paddingTop="@dimen/tiny_margin"
+    android:paddingEnd="@dimen/small_margin"
     android:paddingBottom="@dimen/tiny_margin">
 
     <RelativeLayout
         android:id="@+id/item_holder"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_marginBottom="@dimen/normal_margin">
+        android:layout_marginBottom="@dimen/activity_margin">
 
         <ImageView
             android:id="@+id/item_icon"
@@ -29,12 +31,25 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_below="@+id/item_icon"
-            android:ellipsize="end"
+            android:ellipsize="middle"
             android:gravity="center_horizontal"
-            android:maxLines="1"
-            android:paddingStart="@dimen/medium_margin"
-            android:paddingEnd="@dimen/medium_margin"
+            android:paddingStart="@dimen/small_margin"
+            android:paddingEnd="@dimen/small_margin"
+            android:singleLine="true"
             tools:text="Directory" />
 
+        <ImageView
+            android:id="@+id/item_check"
+            android:layout_width="@dimen/selection_check_size"
+            android:layout_height="@dimen/selection_check_size"
+            android:layout_alignEnd="@+id/item_icon"
+            android:layout_alignParentTop="true"
+            android:layout_margin="@dimen/small_margin"
+            android:background="@drawable/circle_background"
+            android:contentDescription="@null"
+            android:padding="@dimen/tiny_margin"
+            android:src="@drawable/ic_check_vector"
+            android:visibility="gone" />
+
     </RelativeLayout>
 </FrameLayout>