Adding a customizable development mode tile

User can configure the active state for development mode
which would allow enabling multiple options at once

Test: make -j40 RunSettingsRoboTests
Change-Id: I545b790f8c7097945f39ca003e5985b23cb53636

src/com/android/settings/qstile/DevelopmentTileConfigActivity.java

@@ -0,0 +1,115 @@
+/*
+ * 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.qstile;
+
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.view.View;
+
+import com.android.settings.R;
+import com.android.settings.SettingsActivity;
+import com.android.settings.SettingsPreferenceFragment;
+import com.android.settings.core.instrumentation.Instrumentable;
+import com.android.settings.widget.SwitchBar;
+
+public class DevelopmentTileConfigActivity extends SettingsActivity {
+
+    @Override
+    public Intent getIntent() {
+        Intent modIntent = new Intent(super.getIntent())
+                .putExtra(EXTRA_SHOW_FRAGMENT, DevelopmentTileConfigFragment.class.getName())
+                .putExtra(EXTRA_HIDE_DRAWER, true);
+        return modIntent;
+    }
+
+    @Override
+    protected boolean isValidFragment(String fragmentName) {
+        return (DevelopmentTileConfigFragment.class.getName().equals(fragmentName));
+    }
+
+    public static class DevelopmentTileConfigFragment extends SettingsPreferenceFragment implements
+            SharedPreferences.OnSharedPreferenceChangeListener {
+
+        private DevelopmentModeTile.DevModeProperties mProps =
+                new DevelopmentModeTile.DevModeProperties();
+
+        private SwitchBar mSwitchBar;
+        private View mDisabledMessage;
+
+        @Override
+        public void onCreate(Bundle icicle) {
+            super.onCreate(icicle);
+            getPreferenceManager()
+                    .setSharedPreferencesName(DevelopmentModeTile.SHARED_PREFERENCES_NAME);
+            addPreferencesFromResource(R.xml.development_tile_prefs);
+        }
+
+        @Override
+        public void onViewCreated(View view, Bundle savedInstanceState) {
+            super.onViewCreated(view, savedInstanceState);
+            mDisabledMessage = setPinnedHeaderView(R.layout.development_tile_config_header);
+            refreshHeader();
+        }
+
+        @Override
+        public void onActivityCreated(Bundle savedInstanceState) {
+            super.onActivityCreated(savedInstanceState);
+            mSwitchBar = ((SettingsActivity) getActivity()).getSwitchBar();
+            mSwitchBar.setEnabled(false);
+        }
+
+        @Override
+        public int getMetricsCategory() {
+            return Instrumentable.METRICS_CATEGORY_UNKNOWN;
+        }
+
+        @Override
+        public void onResume() {
+            super.onResume();
+            refreshHeader();
+            getPreferenceManager().getSharedPreferences()
+                    .registerOnSharedPreferenceChangeListener(this);
+        }
+
+        @Override
+        public void onPause() {
+            super.onPause();
+            getPreferenceManager().getSharedPreferences()
+                    .unregisterOnSharedPreferenceChangeListener(this);
+        }
+
+        @Override
+        public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
+            refreshHeader();
+        }
+
+        private void refreshHeader() {
+            if (mSwitchBar != null && mDisabledMessage != null) {
+                mProps.refreshState(getActivity());
+                if (mProps.isSet) {
+                    mSwitchBar.show();
+                    mDisabledMessage.setVisibility(View.GONE);
+                } else {
+                    mSwitchBar.hide();
+                    mDisabledMessage.setVisibility(View.VISIBLE);
+                }
+                mSwitchBar.setChecked(mProps.allMatch);
+            }
+        }
+    }
+}