Add option to hide hidden files

Readme.md

@@ -68,6 +68,7 @@ Step 2. Add the dependency
         properties.error_dir = new File(DialogConfigs.DEFAULT_DIR);
         properties.offset = new File(DialogConfigs.DEFAULT_DIR);
         properties.extensions = null;
+        properties.show_hidden_files = false;
     ```
 
 3. Next create an instance of `FilePickerDialog`, and pass `Context` and `DialogProperties` references as parameters. Optional: You can change the title of dialog. Default is current directory name. Set the positive button string. Default is Select. Set the negative button string. Defalut is Cancel.
@@ -132,7 +133,8 @@ Marshmallow and above requests for the permission on runtime. You should overrid
            app:root_dir="/sdcard"
            app:selection_mode="multi_mode"
            app:selection_type="dir_select"
-           app:extensions="txt:pdf:"/>
+           app:extensions="txt:pdf:"
+           app:show_hidden_files="false"/>
     ```
 
 2. Implement [Preference.OnPreferenceChangeListener](https://developer.android.com/reference/android/preference/Preference.OnPreferenceChangeListener.html) to class requiring selected values and `Override` `onPreferenceChange(Preference, Object)` method. Check for preference key using [Preference](https://developer.android.com/reference/android/preference/Preference.html) reference.

build.gradle

@@ -6,7 +6,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.0'
+        classpath 'com.android.tools.build:gradle:3.5.2'
         classpath 'com.github.dcendents:android-maven-gradle-plugin:2.1'
 
         // NOTE: Do not place your application dependencies here; they belong

library/src/main/java/com/developer/filepicker/model/DialogProperties.java

@@ -12,6 +12,7 @@ public class DialogProperties {
     public File error_dir;
     public File offset;
     public String[] extensions;
+    public boolean show_hidden_files;
 
     public DialogProperties() {
         selection_mode = DialogConfigs.SINGLE_MODE;
@@ -20,5 +21,6 @@ public DialogProperties() {
         error_dir = new File(DialogConfigs.DEFAULT_DIR);
         offset = new File(DialogConfigs.DEFAULT_DIR);
         extensions = null;
+        show_hidden_files = false;
     }
 }

library/src/main/java/com/developer/filepicker/utils/Utility.java

@@ -2,7 +2,9 @@
 
 import android.content.Context;
 import android.content.pm.PackageManager;
+
 import com.developer.filepicker.model.FileListItem;
+
 import java.io.File;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -23,11 +25,11 @@ public static boolean checkStorageAccessPermissions(Context context) {
         }
     }
 
-    public static ArrayList<FileListItem> prepareFileListEntries(ArrayList<FileListItem> internalList, File inter, ExtensionFilter filter) {
+    public static ArrayList<FileListItem> prepareFileListEntries(ArrayList<FileListItem> internalList, File inter, ExtensionFilter filter, boolean show_hidden_files) {
         try {
-
             for (File name : inter.listFiles(filter)) {
                 if (name.canRead()) {
+                    if(name.getName().startsWith(".") && !show_hidden_files) continue;
                     FileListItem item = new FileListItem();
                     item.setFilename(name.getName());
                     item.setDirectory(name.isDirectory());

library/src/main/java/com/developer/filepicker/view/FilePickerDialog.java

@@ -14,6 +14,7 @@
 import android.widget.ListView;
 import android.widget.TextView;
 import android.widget.Toast;
+
 import com.developer.filepicker.R;
 import com.developer.filepicker.controller.DialogSelectionListener;
 import com.developer.filepicker.controller.NotifyItemChecked;
@@ -25,6 +26,7 @@
 import com.developer.filepicker.utils.ExtensionFilter;
 import com.developer.filepicker.utils.Utility;
 import com.developer.filepicker.widget.MaterialCheckbox;
+
 import java.io.File;
 import java.util.ArrayList;
 import java.util.List;
@@ -209,7 +211,7 @@ protected void onStart() {
             dname.setText(currLoc.getName());
             dir_path.setText(currLoc.getAbsolutePath());
             setTitle();
-            internalList = Utility.prepareFileListEntries(internalList, currLoc, filter);
+            internalList = Utility.prepareFileListEntries(internalList, currLoc, filter, properties.show_hidden_files);
             mFileListAdapter.notifyDataSetChanged();
             listView.setOnItemClickListener(this);
         }
@@ -240,7 +242,7 @@ public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
                         parent.setTime(currLoc.lastModified());
                         internalList.add(parent);
                     }
-                    internalList = Utility.prepareFileListEntries(internalList, currLoc, filter);
+                    internalList = Utility.prepareFileListEntries(internalList, currLoc, filter, properties.show_hidden_files);
                     mFileListAdapter.notifyDataSetChanged();
                 } else {
                     Toast.makeText(context, R.string.error_dir_access, Toast.LENGTH_SHORT).show();
@@ -422,7 +424,7 @@ public void onBackPressed() {
                     parent.setTime(currLoc.lastModified());
                     internalList.add(parent);
                 }
-                internalList = Utility.prepareFileListEntries(internalList, currLoc, filter);
+                internalList = Utility.prepareFileListEntries(internalList, currLoc, filter, properties.show_hidden_files);
                 mFileListAdapter.notifyDataSetChanged();
             }
             setTitle();

library/src/main/java/com/developer/filepicker/view/FilePickerPreference.java

@@ -8,10 +8,12 @@
 import android.preference.Preference;
 import android.util.AttributeSet;
 import android.view.View;
+
 import com.developer.filepicker.R;
 import com.developer.filepicker.controller.DialogSelectionListener;
 import com.developer.filepicker.model.DialogConfigs;
 import com.developer.filepicker.model.DialogProperties;
+
 import java.io.File;
 
 /**
@@ -72,7 +74,7 @@ protected Parcelable onSaveInstanceState() {
 
     @Override
     protected void onRestoreInstanceState(Parcelable state) {
-        if (state == null || !(state instanceof SavedState)) {
+        if (!(state instanceof SavedState)) {
             super.onRestoreInstanceState(state);
             return;
         }
@@ -188,6 +190,9 @@ else if (attr == R.styleable.FilePickerPreference_extensions) {
             else if (attr == R.styleable.FilePickerPreference_title_text) {
                 titleText=tarr.getString(R.styleable.FilePickerPreference_title_text);
             }
+            else if (attr == R.styleable.FilePickerPreference_show_hidden_files) {
+                properties.show_hidden_files = tarr.getBoolean(R.styleable.FilePickerPreference_show_hidden_files, false);
+            }
         }
         tarr.recycle();
     }

library/src/main/res/values/attrs.xml

@@ -31,5 +31,9 @@
             name="title_text"
             format="string"/>
 
+        <attr
+            name="show_hidden_files"
+            format="boolean"/>
+
     </declare-styleable>
 </resources>

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

@@ -6,5 +6,5 @@
    <string name="label_parent_directory">Parent Directory</string>
    <string name="last_edit">Last edited: </string>
    <string name="error_dir_access">Directory cannot be accessed</string>
-   <string name="label_parent_dir" translatable="false">...</string>
+   <string name="label_parent_dir" translatable="false">..</string>
 </resources>

sample/build.gradle

@@ -22,7 +22,7 @@ dependencies {
     implementation fileTree(include: ['*.jar'], dir: 'libs')
     implementation project(':library')
     implementation 'androidx.appcompat:appcompat:1.1.0'
-    implementation 'androidx.recyclerview:recyclerview:1.0.0'
+    implementation 'androidx.recyclerview:recyclerview:1.1.0'
     debugImplementation 'com.squareup.leakcanary:leakcanary-android:1.5.4'
     releaseImplementation 'com.squareup.leakcanary:leakcanary-android-no-op:1.5.4'
 }

sample/src/main/AndroidManifest.xml

@@ -12,6 +12,7 @@
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:theme="@style/AppTheme"
+        android:requestLegacyExternalStorage="true"
         tools:ignore="AllowBackup,GoogleAppIndexingWarning">
 
         <activity android:name="com.developer.filepicker.file.MainActivity">

sample/src/main/java/com/developer/filepicker/file/MainActivity.java

@@ -3,19 +3,21 @@
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.os.Bundle;
-import androidx.annotation.NonNull;
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.recyclerview.widget.LinearLayoutManager;
-import androidx.recyclerview.widget.RecyclerView;
 import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.widget.Button;
+import android.widget.CheckBox;
 import android.widget.EditText;
 import android.widget.RadioGroup;
 import android.widget.Toast;
 
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
 import com.developer.filepicker.controller.DialogSelectionListener;
 import com.developer.filepicker.model.DialogConfigs;
 import com.developer.filepicker.model.DialogProperties;
@@ -89,6 +91,7 @@ public void onCheckedChanged(RadioGroup group, int checkedId) {
         final EditText extension = findViewById(R.id.extensions);
         final EditText root = findViewById(R.id.root);
         final EditText offset = findViewById(R.id.offset);
+        final CheckBox show_hidden_files = findViewById(R.id.show_hidden_files);
         Button apply = findViewById(R.id.apply);
         Button showDialog = findViewById(R.id.show_dialog);
         apply.setOnClickListener(new View.OnClickListener() {
@@ -141,6 +144,8 @@ public void onClick(View view) {
                     properties.offset=new File(DialogConfigs.DEFAULT_DIR);
                 }
 
+                properties.show_hidden_files = show_hidden_files.isChecked();
+
                 //Setting Alternative Directory, in case root is not accessible.This will be
                 //used.
 

sample/src/main/res/layout/activity_main.xml

@@ -134,6 +134,13 @@
                 android:layout_marginTop="@dimen/activity_vertical_margin"
                 android:hint="@string/hint_offset"
                 android:id="@+id/offset" />
+
+            <androidx.appcompat.widget.AppCompatCheckBox
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/activity_vertical_margin"
+                android:id="@+id/show_hidden_files"
+                android:text="@string/show_hidden_files"/>
         </androidx.appcompat.widget.LinearLayoutCompat>
     </androidx.core.widget.NestedScrollView>
 

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

@@ -18,4 +18,5 @@
     <string name="label_directory">Directory</string>
     <string name="label_files_and_directories">Files and Directories</string>
     <string name="label_extensions">Filter Extensions(Seperate with Commas, Don\'t use dots)</string>
+    <string name="show_hidden_files">Show hidden files</string>
 </resources>