Force show keyboard when presenting FragmentDialogs with EditText.

Bug: 26823589
Change-Id: I593ed0e7ef40c9c95c311ca529d3826d73496458

packages/DocumentsUI/src/com/android/documentsui/CreateDirectoryFragment.java

@@ -82,6 +82,9 @@ public class CreateDirectoryFragment extends DialogFragment {
         builder.setNegativeButton(android.R.string.cancel, null);
         final AlertDialog dialog = builder.create();
 
+        // Workaround for the problem - virtual keyboard doesn't show on the phone.
+        Shared.ensureKeyboardPresent(context, dialog);
+
         editText.setOnEditorActionListener(
                 new OnEditorActionListener() {
                     @Override

packages/DocumentsUI/src/com/android/documentsui/Shared.java

@@ -17,9 +17,12 @@
 package com.android.documentsui;
 
 import android.content.Context;
+import android.content.res.Configuration;
 import android.text.TextUtils;
 import android.text.format.DateUtils;
 import android.text.format.Time;
+import android.view.WindowManager;
+import android.app.AlertDialog;
 
 import java.text.Collator;
 import java.util.ArrayList;
@@ -155,4 +158,15 @@ public final class Shared {
 
         return sCollator.compare(lhs, rhs);
     }
+
+    public static boolean isHardwareKeyboardAvailable(Context context) {
+        return context.getResources().getConfiguration().keyboard != Configuration.KEYBOARD_NOKEYS;
+    }
+
+    public static void ensureKeyboardPresent(Context context, AlertDialog dialog) {
+        if (!isHardwareKeyboardAvailable(context)) {
+            dialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
+        }
+    }
+
 }

packages/DocumentsUI/src/com/android/documentsui/dirlist/RenameDocumentFragment.java

@@ -92,6 +92,9 @@ public class RenameDocumentFragment extends DialogFragment {
 
         final AlertDialog dialog = builder.create();
 
+        // Workaround for the problem - virtual keyboard doesn't show on the phone.
+        Shared.ensureKeyboardPresent(context, dialog);
+
         mEditText.setOnEditorActionListener(
                 new OnEditorActionListener() {
                     @Override