Add setting to disable assist data (2/2).

Bug: 20944446
Change-Id: I3c518176cab88ce9b5031a0241bee30240e6f896

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

@@ -0,0 +1,76 @@
+/*
+ * 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.applications;
+
+import android.annotation.Nullable;
+import android.os.Bundle;
+import android.preference.Preference;
+import android.preference.SwitchPreference;
+import android.provider.Settings;
+import android.text.method.LinkMovementMethod;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.TextView;
+
+import com.android.internal.logging.MetricsLogger;
+import com.android.settings.InstrumentedFragment;
+import com.android.settings.R;
+import com.android.settings.SettingsPreferenceFragment;
+
+/**
+ * Settings screen to manage everything about assist.
+ */
+public class ManageAssist extends SettingsPreferenceFragment
+        implements Preference.OnPreferenceChangeListener {
+
+    private static final String KEY_CONTEXT = "context";
+
+    private SwitchPreference mContextPref;
+
+    @Override
+    public void onCreate(Bundle icicle) {
+        super.onCreate(icicle);
+        addPreferencesFromResource(R.xml.manage_assist);
+        mContextPref = (SwitchPreference) findPreference(KEY_CONTEXT);
+        mContextPref.setChecked(Settings.Secure.getInt(getContentResolver(),
+                Settings.Secure.ASSIST_STRUCTURE_ENABLED, 1) != 0);
+        mContextPref.setOnPreferenceChangeListener(this);
+    }
+
+    @Override
+    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+        TextView v = (TextView) LayoutInflater.from(view.getContext()).inflate(
+                R.layout.manage_assist_footer, null);
+        getListView().addFooterView(v);
+    }
+
+    @Override
+    protected int getMetricsCategory() {
+        return MetricsLogger.APPLICATIONS_MANAGE_ASSIST;
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        if (preference == mContextPref) {
+            Settings.Secure.putInt(getContentResolver(), Settings.Secure.ASSIST_STRUCTURE_ENABLED,
+                    (boolean) newValue ? 1 : 0);
+            return true;
+        }
+        return false;
+    }
+}