| /** |
| * Copyright (C) 2014 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.tests.usagestats; |
| |
| import android.app.ListActivity; |
| import android.app.usage.UsageEvents; |
| import android.app.usage.UsageStatsManager; |
| import android.content.Context; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.BaseAdapter; |
| import android.widget.TextView; |
| |
| import java.util.ArrayList; |
| |
| public class UsageLogActivity extends ListActivity implements Runnable { |
| private static final long USAGE_STATS_PERIOD = 1000 * 60 * 60 * 24 * 14; |
| |
| private UsageStatsManager mUsageStatsManager; |
| private Adapter mAdapter; |
| private Handler mHandler = new Handler(); |
| |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| mUsageStatsManager = (UsageStatsManager) getSystemService(Context.USAGE_STATS_SERVICE); |
| mAdapter = new Adapter(); |
| setListAdapter(mAdapter); |
| } |
| |
| @Override |
| protected void onResume() { |
| super.onResume(); |
| run(); |
| } |
| |
| @Override |
| protected void onPause() { |
| super.onPause(); |
| mHandler.removeCallbacks(this); |
| } |
| |
| @Override |
| public void run() { |
| long now = System.currentTimeMillis(); |
| long beginTime = now - USAGE_STATS_PERIOD; |
| UsageEvents events = mUsageStatsManager.queryEvents(beginTime, now); |
| mAdapter.update(events); |
| mHandler.postDelayed(this, 1000 * 5); |
| } |
| |
| private class Adapter extends BaseAdapter { |
| |
| private final ArrayList<UsageEvents.Event> mEvents = new ArrayList<>(); |
| |
| public void update(UsageEvents results) { |
| mEvents.clear(); |
| while (results.hasNextEvent()) { |
| UsageEvents.Event event = new UsageEvents.Event(); |
| results.getNextEvent(event); |
| mEvents.add(event); |
| } |
| notifyDataSetChanged(); |
| } |
| |
| @Override |
| public int getCount() { |
| return mEvents.size(); |
| } |
| |
| @Override |
| public Object getItem(int position) { |
| return mEvents.get(position); |
| } |
| |
| @Override |
| public long getItemId(int position) { |
| return position; |
| } |
| |
| @Override |
| public View getView(int position, View convertView, ViewGroup parent) { |
| final ViewHolder holder; |
| if (convertView == null) { |
| convertView = LayoutInflater.from(UsageLogActivity.this) |
| .inflate(R.layout.row_item, parent, false); |
| holder = new ViewHolder(); |
| holder.packageName = (TextView) convertView.findViewById(android.R.id.text1); |
| holder.state = (TextView) convertView.findViewById(android.R.id.text2); |
| convertView.setTag(holder); |
| } else { |
| holder = (ViewHolder) convertView.getTag(); |
| } |
| |
| holder.packageName.setText(mEvents.get(position).getPackageName()); |
| String state; |
| switch (mEvents.get(position).getEventType()) { |
| case UsageEvents.Event.MOVE_TO_FOREGROUND: |
| state = "Foreground"; |
| break; |
| |
| case UsageEvents.Event.MOVE_TO_BACKGROUND: |
| state = "Background"; |
| break; |
| |
| default: |
| state = "Unknown: " + mEvents.get(position).getEventType(); |
| break; |
| } |
| holder.state.setText(state); |
| return convertView; |
| } |
| } |
| |
| static class ViewHolder { |
| public TextView packageName; |
| public TextView state; |
| } |
| } |