Add running services screen to developer options

This used to live under manage apps, but does no longer.

Bug: 19926589
Change-Id: I2554f14205286cc38fc87779873c37a5a1f80c4e

res/xml/development_prefs.xml

@@ -60,6 +60,12 @@
             android:fragment="com.android.settings.applications.ProcessStatsUi">
     </PreferenceScreen>
 
+    <PreferenceScreen
+        android:key="running_apps"
+        android:title="@string/runningservices_settings_title"
+        android:summary="@string/runningservices_settings_summary"
+        android:fragment="com.android.settings.applications.RunningServices" />
+
     <PreferenceCategory android:key="debug_debugging_category"
             android:title="@string/debug_debugging_category">
 

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

@@ -431,7 +431,7 @@ public class RunningProcessesView extends FrameLayout
         mMyUserId = UserHandle.myUserId();
     }
     
-    public void doCreate(Bundle savedInstanceState) {
+    public void doCreate() {
         mAm = (ActivityManager)getContext().getSystemService(Context.ACTIVITY_SERVICE);
         mState = RunningState.getInstance(getContext());
         LayoutInflater inflater = (LayoutInflater)getContext().getSystemService(

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

@@ -0,0 +1,129 @@
+/*
+ * 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.app.Fragment;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.animation.AnimationUtils;
+
+import com.android.settings.R;
+
+public class RunningServices extends Fragment {
+
+    private static final int SHOW_RUNNING_SERVICES = 1;
+    private static final int SHOW_BACKGROUND_PROCESSES = 2;
+
+    private RunningProcessesView mRunningProcessesView;
+    private Menu mOptionsMenu;
+    private View mLoadingContainer;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        setHasOptionsMenu(true);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                Bundle savedInstanceState) {
+        View rootView = inflater.inflate(R.layout.manage_applications_running, null);
+        mRunningProcessesView = (RunningProcessesView) rootView.findViewById(
+                R.id.running_processes);
+        mRunningProcessesView.doCreate();
+        mLoadingContainer = rootView.findViewById(R.id.loading_container);
+
+        return rootView;
+    }
+
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        mOptionsMenu = menu;
+        menu.add(0, SHOW_RUNNING_SERVICES, 1, R.string.show_running_services)
+                .setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
+        menu.add(0, SHOW_BACKGROUND_PROCESSES, 2, R.string.show_background_processes)
+                .setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
+        updateOptionsMenu();
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        boolean haveData = mRunningProcessesView.doResume(this, mRunningProcessesAvail);
+        if (haveData) {
+            mRunningProcessesView.setVisibility(View.VISIBLE);
+            mLoadingContainer.setVisibility(View.INVISIBLE);
+        } else {
+            mLoadingContainer.setVisibility(View.VISIBLE);
+        }
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        mRunningProcessesView.doPause();
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case SHOW_RUNNING_SERVICES:
+                mRunningProcessesView.mAdapter.setShowBackground(false);
+                break;
+            case SHOW_BACKGROUND_PROCESSES:
+                mRunningProcessesView.mAdapter.setShowBackground(true);
+                break;
+            default:
+                return false;
+        }
+        updateOptionsMenu();
+        return true;
+    }
+
+    @Override
+    public void onPrepareOptionsMenu(Menu menu) {
+        updateOptionsMenu();
+    }
+
+    private void updateOptionsMenu() {
+        boolean showingBackground = mRunningProcessesView.mAdapter.getShowBackground();
+        mOptionsMenu.findItem(SHOW_RUNNING_SERVICES).setVisible(showingBackground);
+        mOptionsMenu.findItem(SHOW_BACKGROUND_PROCESSES).setVisible(!showingBackground);
+    }
+
+    private void handleRunningProcessesAvail() {
+        mLoadingContainer.startAnimation(AnimationUtils.loadAnimation(getActivity(),
+                android.R.anim.fade_out));
+        mRunningProcessesView.startAnimation(AnimationUtils.loadAnimation(getActivity(),
+                android.R.anim.fade_in));
+        mRunningProcessesView.setVisibility(View.VISIBLE);
+        mLoadingContainer.setVisibility(View.GONE);
+    }
+
+    private final Runnable mRunningProcessesAvail = new Runnable() {
+        @Override
+        public void run() {
+            handleRunningProcessesAvail();
+        }
+    };
+
+}