Add default app prefs to app info

This makes them easier to discover and to know the state of them.

Bug: 27276982
Change-Id: I24a9d34d7e189b19df39cc0b9028b6412f76aa05

src/com/android/settings/applications/ShortcutPreference.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2016 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.applications;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.support.v7.preference.Preference;
+import com.android.settings.SettingsActivity;
+import com.android.settings.Utils;
+
+public class ShortcutPreference extends Preference {
+
+    private final Class mTarget;
+    private final String mPrefKey;
+    private final int mTitle;
+
+    public ShortcutPreference(Context context, Class target, String prefKey, int prefTitle,
+            int title) {
+        super(context);
+        mTarget = target;
+        mPrefKey = prefKey;
+        mTitle = title;
+        setTitle(prefTitle);
+        setKey(mPrefKey);
+    }
+
+    @Override
+    public void performClick() {
+        super.performClick();
+        Bundle bundle = new Bundle();
+        bundle.putString(SettingsActivity.EXTRA_FRAGMENT_ARG_KEY, mPrefKey);
+        Utils.startWithFragment(getContext(), mTarget.getName(), bundle, null, 0,
+                mTitle, null);
+    }
+}