Added Unselect All,

Fixes for crash below Android-8(Oreo) on delete/File properties because of nio support

Author: adityak368

filebrowser/src/main/java/com/aditya/filebrowser/ToolbarActionMode.java

@@ -95,6 +95,9 @@ else if(item.getItemId()==R.id.action_rename) {
         else if(item.getItemId()==R.id.action_selectall) {
             mAdapter.selectAll();
         }
+        else if(item.getItemId()==R.id.action_unselectall) {
+            mAdapter.unSelectAll();
+        }
         return false;
     }
 }

filebrowser/src/main/java/com/aditya/filebrowser/adapters/CustomAdapter.java

@@ -38,6 +38,13 @@ public void selectAll() {
         notifyDataSetChanged();
     }
 
+    public void unSelectAll() {
+        for(int i=0;i<fileList.size();i++) {
+            filteredfileList.get(i).setSelected(false);
+        }
+        notifyDataSetChanged();
+    }
+
     public void selectItem(int position) {
         filteredfileList.get(position).setSelected(true);
         notifyDataSetChanged();

filebrowser/src/main/java/com/aditya/filebrowser/fileoperations/FileIO.java

@@ -91,7 +91,7 @@ public void run() {
                                         for (; i < selectedItems.size(); i++) {
                                             mUIUpdateHandler.post(mHelper.progressUpdater(progressDialog, (int)((i/TOTAL_ITEMS)*100), "File: "+selectedItems.get(i).getFile().getName()));
                                             if (selectedItems.get(i).getFile().isDirectory()) {
-                                                FileUtils.deleteDirectory(selectedItems.get(i).getFile());
+                                                removeDir(selectedItems.get(i).getFile());
                                             } else {
                                                 FileUtils.forceDelete(selectedItems.get(i).getFile());
                                             }
@@ -215,7 +215,7 @@ public void getProperties(List<FileItem> selectedItems) {
                 File f = selectedItems.get(0).getFile().getCanonicalFile();
                 isDirectory = (f.isDirectory());
                 String type = isDirectory?mContext.getString(R.string.directory):mContext.getString(R.string.file);
-                String size = FileUtils.byteCountToDisplaySize(isDirectory?FileUtils.sizeOfDirectory(f):FileUtils.sizeOf(f));
+                String size = FileUtils.byteCountToDisplaySize(isDirectory ? getDirSize(f):FileUtils.sizeOf(f));
                 String lastModified = new SimpleDateFormat(Constants.DATE_FORMAT).format(selectedItems.get(0).getFile().lastModified());
                 msg.append(mContext.getString(R.string.file_type,type));
                 msg.append(mContext.getString(R.string.file_size,size));
@@ -226,7 +226,7 @@ public void getProperties(List<FileItem> selectedItems) {
                 for(int i=0;i<selectedItems.size();i++) {
                     File f = selectedItems.get(0).getFile().getCanonicalFile();
                     boolean isDirectory = (f.isDirectory());
-                    totalSize += isDirectory?FileUtils.sizeOfDirectory(f):FileUtils.sizeOf(f);
+                    totalSize += isDirectory ? getDirSize(f):FileUtils.sizeOf(f);
                 }
                 msg.append(mContext.getString(R.string.file_type_plain)+" "+mContext.getString(R.string.file_type_multiple));
                 msg.append(mContext.getString(R.string.file_size,FileUtils.byteCountToDisplaySize(totalSize)));
@@ -255,4 +255,53 @@ public void shareMultipleFiles(List<FileItem> filesToBeShared){
             UIUtils.ShowToast(mContext.getString(R.string.sharing_no_app),mContext);
         }
     }
+
+    private boolean removeDir(File directoryToBeDeleted) {
+        File[] allContents = directoryToBeDeleted.listFiles();
+        if (allContents != null) {
+            for (File file : allContents) {
+                removeDir(file);
+            }
+        }
+        return directoryToBeDeleted.delete();
+    }
+
+    private long getDirSize(File root) {
+        if(root == null){
+            return 0;
+        }
+        if(root.isFile()){
+            return root.length();
+        }
+        try {
+            if(isFileASymLink(root)){
+                return 0;
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+            return 0;
+        }
+
+        long length = 0;
+        File[] files = root.listFiles();
+        if(files == null){
+            return 0;
+        }
+        for (File file : files) {
+            length += getDirSize(file);
+        }
+
+        return length;
+    }
+
+    private static boolean isFileASymLink(File file) throws IOException {
+        File canon;
+        if (file.getParent() == null) {
+            canon = file;
+        } else {
+            File canonDir = file.getParentFile().getCanonicalFile();
+            canon = new File(canonDir, file.getName());
+        }
+        return !canon.getCanonicalFile().equals(canon.getAbsoluteFile());
+    }
 }

filebrowser/src/main/res/drawable/ic_low_priority_black_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M14,5h8v2h-8zM14,10.5h8v2h-8zM14,16h8v2h-8zM2,11.5C2,15.08 4.92,18 8.5,18L9,18v2l3,-3 -3,-3v2h-0.5C6.02,16 4,13.98 4,11.5S6.02,7 8.5,7L12,7L12,5L8.5,5C4.92,5 2,7.92 2,11.5z"/>
+</vector>

filebrowser/src/main/res/menu/toolbar_multiselect_menu.xml

@@ -9,4 +9,6 @@
         android:icon="@drawable/ic_create_black_24dp" app:showAsAction="ifRoom" />
     <item android:id="@+id/action_selectall" android:title="@string/selectall"
         android:icon="@drawable/ic_format_line_spacing_black_24dp" app:showAsAction="ifRoom" />
+    <item android:id="@+id/action_unselectall" android:title="@string/unselectall"
+        android:icon="@drawable/ic_low_priority_black_24dp" app:showAsAction="ifRoom" />
 </menu>

filebrowser/src/main/res/menu/toolbar_multiselect_menu_filechooser.xml

@@ -5,4 +5,6 @@
         android:icon="@drawable/ic_info_outline_black_24dp" app:showAsAction="ifRoom" />
     <item android:id="@+id/action_selectall" android:title="@string/selectall"
         android:icon="@drawable/ic_format_line_spacing_black_24dp" app:showAsAction="ifRoom" />
+    <item android:id="@+id/action_unselectall" android:title="@string/unselectall"
+        android:icon="@drawable/ic_low_priority_black_24dp" app:showAsAction="ifRoom" />
 </menu>

filebrowser/src/main/res/values-de/strings.xml

@@ -72,4 +72,5 @@
     <string name="filter_only">Filtern nach</string>
     <string name="sort_by">Sortieren nach</string>
     <string name="file_info">%s zul. geändert %s</string>
+    <string name="unselectall">Alles wiederufen</string>
 </resources>

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

@@ -69,6 +69,7 @@
     <string name="no_app_to_handle">No app found to handle this type of file.</string>
     <string name="select_multiple">Select Multiple Files</string>
     <string name="external_storage_error">Cannot Locate External Store</string>
+    <string name="unselectall">Unselect All</string>
     <string-array name="filter_options">
         <item>Files</item>
         <item>Folders</item>