Dream (screensaver) settings.

Depends on change Ied691856 for
Settings.Secure.DREAM_TIMEOUT and
Settings.Secure.DREAM_COMPONENT.

Change-Id: Ib6f74b74036e12637efb891b97e459a4e33444e7

src/com/android/settings/DreamTesterPreference.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2011 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;
+
+import static android.provider.Settings.Secure.DREAM_COMPONENT;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.ComponentName;
+import android.content.ContentResolver;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.pm.ActivityInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.content.res.Resources;
+import android.preference.Preference;
+import android.provider.Settings;
+import android.util.AttributeSet;
+import android.util.Log;
+import android.view.Gravity;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+import android.widget.BaseAdapter;
+import android.widget.ImageView;
+import android.widget.ListAdapter;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class DreamTesterPreference extends Preference {
+    private static final String TAG = "DreamTesterPreference";
+    
+    private final PackageManager pm;
+    private final ContentResolver resolver;
+
+    public DreamTesterPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        pm = getContext().getPackageManager();
+        resolver = getContext().getContentResolver();
+    }
+
+    @Override
+    protected void onClick() {
+        String component = Settings.Secure.getString(resolver, DREAM_COMPONENT);
+        if (component != null) {
+            ComponentName cn = ComponentName.unflattenFromString(component);
+            Intent intent = new Intent(Intent.ACTION_MAIN)
+                .setComponent(cn)
+                .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
+                    | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
+                    | Intent.FLAG_ACTIVITY_SINGLE_TOP)
+                .putExtra("android.dreams.TEST", true);
+            getContext().startActivity(intent);
+        }
+    }
+}