add breadcrumbs to Destination picker dialog too at Copy

app/src/main/java/com/simplemobiletools/filemanager/Breadcrumbs.java

@@ -10,6 +10,8 @@ import android.view.WindowManager;
 import android.widget.LinearLayout;
 import android.widget.TextView;
 
+import com.simplemobiletools.filemanager.models.FileDirItem;
+
 public class Breadcrumbs extends LinearLayout implements View.OnClickListener {
     private LayoutInflater mInflater;
     private int mDeviceWidth;
@@ -96,17 +98,33 @@ public class Breadcrumbs extends LinearLayout implements View.OnClickListener {
         setMeasuredDimension(parentWidth, calculatedHeight);
     }
 
-    public void setInitialBreadcrumb() {
+    public void setInitialBreadcrumb(String fullPath) {
-        addBreadcrumb(getResources().getString(R.string.initial_breadcrumb));
+        removeAllViewsInLayout();
+        final String[] dirs = fullPath.split("/");
+        String currPath = "";
+        for (int i = 0; i < dirs.length; i++) {
+            final String dir = dirs[i];
+            currPath += dir + "/";
+            if (dir.isEmpty())
+                continue;
+
+            final FileDirItem item = new FileDirItem(currPath, dir, true, 0, 0);
+            addBreadcrumb(item, i > 1);
+        }
     }
 
-    public void addBreadcrumb(String text) {
+    public void addBreadcrumb(FileDirItem item, boolean addPrefix) {
         final View view = mInflater.inflate(R.layout.breadcrumb_item, null, false);
-        view.setTag(getChildCount());
         final TextView textView = (TextView) view.findViewById(R.id.breadcrumb_text);
-        textView.setText(text);
+
+        String textToAdd = item.getName();
+        if (addPrefix)
+            textToAdd = " -> " + textToAdd;
+        textView.setText(textToAdd);
         addView(view);
         view.setOnClickListener(this);
+
+        view.setTag(item);
     }
 
     public void removeBreadcrumb() {
@@ -115,8 +133,13 @@ public class Breadcrumbs extends LinearLayout implements View.OnClickListener {
 
     @Override
     public void onClick(View v) {
+        final int cnt = getChildCount();
+        for (int i = 0; i < cnt; i++) {
+            if (getChildAt(i) != null && getChildAt(i).equals(v)) {
                 if (mListener != null) {
-            mListener.breadcrumbClicked((Integer) v.getTag());
+                    mListener.breadcrumbClicked(i);
+                }
+            }
         }
     }
 

app/src/main/java/com/simplemobiletools/filemanager/activities/MainActivity.java

@@ -52,7 +52,7 @@ public class MainActivity extends AppCompatActivity implements ItemsFragment.Ite
     private void initRootFileManager() {
         final String path = Environment.getExternalStorageDirectory().toString();
         openPath(path);
-        mBreadcrumbs.setInitialBreadcrumb();
+        mBreadcrumbs.setInitialBreadcrumb(path);
     }
 
     private void openPath(String path) {
@@ -111,7 +111,7 @@ public class MainActivity extends AppCompatActivity implements ItemsFragment.Ite
     @Override
     public void itemClicked(FileDirItem item) {
         openPath(item.getPath());
-        mBreadcrumbs.addBreadcrumb(" -> " + item.getName());
+        mBreadcrumbs.addBreadcrumb(item, true);
     }
 
     @Override

app/src/main/java/com/simplemobiletools/filemanager/fragments/ItemsFragment.java

@@ -29,6 +29,7 @@ import android.widget.ListView;
 import android.widget.RadioGroup;
 import android.widget.TextView;
 
+import com.simplemobiletools.filemanager.Breadcrumbs;
 import com.simplemobiletools.filemanager.Config;
 import com.simplemobiletools.filemanager.Constants;
 import com.simplemobiletools.filemanager.R;
@@ -125,6 +126,7 @@ public class ItemsFragment extends android.support.v4.app.Fragment
         final List<FileDirItem> items = new ArrayList<>();
         final File base = new File(path);
         File[] files = base.listFiles();
+        if (files != null) {
             for (File file : files) {
                 final String curPath = file.getAbsolutePath();
                 final String curName = Utils.getFilename(curPath);
@@ -139,10 +141,14 @@ public class ItemsFragment extends android.support.v4.app.Fragment
 
                 items.add(new FileDirItem(curPath, curName, file.isDirectory(), children, size));
             }
+        }
         return items;
     }
 
     private int getChildren(File file) {
+        if (file.listFiles() == null)
+            return 0;
+
         if (file.isDirectory()) {
             if (mShowHidden) {
                 return file.listFiles().length;
@@ -396,7 +402,13 @@ public class ItemsFragment extends android.support.v4.app.Fragment
         mCopyDialog.getButton(AlertDialog.BUTTON_POSITIVE).setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                final File destinationDir = new File(destination.getText().toString().trim());
+                final String destinationPath = destination.getText().toString().trim();
+                if (destinationPath.equals(getResources().getString(R.string.select_destination))) {
+                    Utils.showToast(getContext(), R.string.please_select_destination);
+                    return;
+                }
+
+                final File destinationDir = new File(destinationPath);
                 if (!destinationDir.exists()) {
                     Utils.showToast(getContext(), R.string.invalid_destination);
                     return;
@@ -481,6 +493,20 @@ public class ItemsFragment extends android.support.v4.app.Fragment
             final ItemsAdapter adapter = new ItemsAdapter(getContext(), items);
             pickerList.setAdapter(adapter);
 
+            final Breadcrumbs breadcrumbs = (Breadcrumbs) pickerView.findViewById(R.id.directory_picker_breadcrumbs);
+            breadcrumbs.setInitialBreadcrumb(mCopyDestinationPath);
+            breadcrumbs.setListener(new Breadcrumbs.BreadcrumbsListener() {
+                @Override
+                public void breadcrumbClicked(int id) {
+                    final FileDirItem item = (FileDirItem) breadcrumbs.getChildAt(id).getTag();
+                    mCopyDestinationPath = item.getPath();
+                    breadcrumbs.setInitialBreadcrumb(mCopyDestinationPath);
+                    final List<FileDirItem> newItems = getItems(mCopyDestinationPath);
+                    Collections.sort(newItems);
+                    adapter.updateItems(newItems);
+                }
+            });
+
             final AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
             builder.setTitle(getResources().getString(R.string.select_destination));
             builder.setView(pickerView);
@@ -497,13 +523,22 @@ public class ItemsFragment extends android.support.v4.app.Fragment
                 }
             });
 
+            alertDialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
+                @Override
+                public void onDismiss(DialogInterface dialog) {
+                    mCopyDestinationPath = ((TextView) destinationView).getText().toString().trim();
+                }
+            });
+
             pickerList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                 @Override
                 public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                     final FileDirItem item = items.get(position);
                     if (item.getIsDirectory()) {
+                        breadcrumbs.addBreadcrumb(item, true);
                         mCopyDestinationPath = item.getPath();
                         final List<FileDirItem> newItems = getItems(mCopyDestinationPath);
+                        Collections.sort(newItems);
                         if (containsDirectory(newItems)) {
                             adapter.updateItems(newItems);
                         } else {

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

@@ -1,6 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    android:id="@+id/directory_picker_holder"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical">
+
+    <com.simplemobiletools.filemanager.Breadcrumbs
+        android:id="@+id/directory_picker_breadcrumbs"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:padding="@dimen/activity_margin"/>
+
     <ListView
         android:id="@+id/directory_picker_list"
         xmlns:android="http://schemas.android.com/apk/res/android"
         android:layout_width="match_parent"
-    android:layout_height="wrap_content"/>
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/directory_picker_breadcrumbs"/>
+
+</LinearLayout>

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

@@ -21,6 +21,7 @@
     <string name="destination">Destination</string>
     <string name="select_destination">Select destination</string>
     <string name="invalid_destination">Could not write to the selected destination</string>
+    <string name="please_select_destination">Please select a destination</string>
     <string name="copy_failed">Could not copy the files</string>
     <string name="copying">Copying</string>
     <string name="initial_breadcrumb">home</string>