Checkpoint of new storage wizards.

Use frameworks/opt/setupwizard/library/ for consistent behavior and
styling on phones and tablets.  Implement every step of wizard flow
and connect them together, even though some steps are currently
non-functional.  All strings to match UX spec, with some adjustment.

Wizards inherit from helper base class.

New interstitials before unmounting or formatting private storage
to confirm user knows consequences.

Bug: 19993667
Change-Id: I2c774e1718d513805ee8aecfc96d066d4730450c

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

@@ -0,0 +1,81 @@
+/*
+ * 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.content.Intent;
+import android.os.Bundle;
+import android.text.format.DateUtils;
+import android.text.format.Formatter;
+import android.widget.CompoundButton;
+import android.widget.CompoundButton.OnCheckedChangeListener;
+import android.widget.RadioButton;
+
+import com.android.internal.util.Preconditions;
+import com.android.settings.R;
+
+public class StorageWizardMigrate extends StorageWizardBase {
+    private RadioButton mRadioNow;
+    private RadioButton mRadioLater;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.storage_wizard_migrate);
+
+        Preconditions.checkNotNull(mDisk);
+
+        final String time = DateUtils.formatDuration(0).toString();
+        final String size = Formatter.formatFileSize(this, 0);
+
+        setHeaderText(R.string.storage_wizard_migrate_title, mDisk.getDescription());
+        setBodyText(R.string.storage_wizard_migrate_body, mDisk.getDescription(), time, size);
+
+        mRadioNow = (RadioButton) findViewById(R.id.storage_wizard_migrate_now);
+        mRadioLater = (RadioButton) findViewById(R.id.storage_wizard_migrate_later);
+
+        mRadioNow.setOnCheckedChangeListener(mRadioListener);
+        mRadioLater.setOnCheckedChangeListener(mRadioListener);
+
+        mRadioNow.setChecked(true);
+    }
+
+    private final OnCheckedChangeListener mRadioListener = new OnCheckedChangeListener() {
+        @Override
+        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+            if (isChecked) {
+                if (buttonView == mRadioNow) {
+                    mRadioLater.setChecked(false);
+                } else if (buttonView == mRadioLater) {
+                    mRadioNow.setChecked(false);
+                }
+            }
+        }
+    };
+
+    @Override
+    public void onNavigateNext() {
+        if (mRadioNow.isChecked()) {
+            final Intent intent = new Intent(this, StorageWizardMigrateConfirm.class);
+            intent.putExtra(EXTRA_DISK_ID, mDisk.id);
+            startActivity(intent);
+        } else if (mRadioLater.isChecked()) {
+            final Intent intent = new Intent(this, StorageWizardReady.class);
+            intent.putExtra(EXTRA_DISK_ID, mDisk.id);
+            startActivity(intent);
+        }
+    }
+}