Format as public/private; follow refactoring.

Offer to format an empty disk as public/private.

Bug: 19993667
Change-Id: I69fafaed524f3ef5e65d04a9e3a94789fcfc3087

src/com/android/settings/deviceinfo/PrivateVolumeUnmount.java

@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.deviceinfo;
+
+import android.os.Bundle;
+import android.os.storage.DiskInfo;
+import android.os.storage.StorageManager;
+import android.os.storage.VolumeInfo;
+import android.text.TextUtils;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.TextView;
+
+import com.android.internal.logging.MetricsLogger;
+import com.android.settings.InstrumentedFragment;
+import com.android.settings.R;
+import com.android.settings.deviceinfo.StorageSettings.UnmountTask;
+
+public class PrivateVolumeUnmount extends InstrumentedFragment {
+    private VolumeInfo mVolume;
+    private DiskInfo mDisk;
+
+    @Override
+    protected int getMetricsCategory() {
+        return MetricsLogger.DEVICEINFO_STORAGE;
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        final StorageManager storage = getActivity().getSystemService(StorageManager.class);
+        final String volumeId = getArguments().getString(VolumeInfo.EXTRA_VOLUME_ID);
+        mVolume = storage.findVolumeById(volumeId);
+        mDisk = storage.findDiskById(mVolume.getDiskId());
+
+        final View view = inflater.inflate(R.layout.storage_internal_unmount, container, false);
+        final TextView body = (TextView) view.findViewById(R.id.body);
+        final Button confirm = (Button) view.findViewById(R.id.confirm);
+
+        body.setText(TextUtils.expandTemplate(getText(R.string.storage_internal_unmount_details),
+                mDisk.getDescription()));
+        confirm.setOnClickListener(mConfirmListener);
+
+        return view;
+    }
+
+    private final OnClickListener mConfirmListener = new OnClickListener() {
+        @Override
+        public void onClick(View v) {
+            new UnmountTask(getActivity(), mVolume).execute();
+            getActivity().finish();
+        }
+    };
+}