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/**
* 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.support.v4.util.CircularArray;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
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();
private long mLastTime;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mUsageStatsManager = (UsageStatsManager) getSystemService(Context.USAGE_STATS_SERVICE);
mLastTime = System.currentTimeMillis() - USAGE_STATS_PERIOD;
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();
UsageEvents events = mUsageStatsManager.queryEvents(mLastTime, now);
long lastEventTime = mAdapter.update(events);
if (lastEventTime >= 0) {
mLastTime = lastEventTime + 1;
}
mHandler.postDelayed(this, 1000 * 5);
}
private class Adapter extends BaseAdapter {
private static final int MAX_EVENTS = 50;
private final CircularArray<UsageEvents.Event> mEvents = new CircularArray<>(MAX_EVENTS);
public long update(UsageEvents results) {
long lastTimeStamp = -1;
while (results.hasNextEvent()) {
UsageEvents.Event event = new UsageEvents.Event();
results.getNextEvent(event);
lastTimeStamp = event.getTimeStamp();
if (mEvents.size() == MAX_EVENTS) {
mEvents.popLast();
}
mEvents.addFirst(event);
}
if (lastTimeStamp != 0) {
notifyDataSetChanged();
}
return lastTimeStamp;
}
@Override
public int getCount() {
return mEvents.size();
}
@Override
public UsageEvents.Event getItem(int position) {
return mEvents.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public int getItemViewType(int position) {
final int eventType = getItem(position).getEventType();
if (eventType == UsageEvents.Event.CONFIGURATION_CHANGE) {
return 1;
}
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
final UsageEvents.Event event = getItem(position);
final ViewHolder holder;
if (convertView == null) {
holder = new ViewHolder();
if (event.getEventType() == UsageEvents.Event.CONFIGURATION_CHANGE) {
convertView = LayoutInflater.from(UsageLogActivity.this)
.inflate(R.layout.config_row_item, parent, false);
holder.config = (TextView) convertView.findViewById(android.R.id.text1);
} else {
convertView = LayoutInflater.from(UsageLogActivity.this)
.inflate(R.layout.row_item, parent, false);
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();
}
if (holder.packageName != null) {
holder.packageName.setText(event.getPackageName());
}
if (holder.state != null) {
holder.state.setText(eventToString(event.getEventType()));
}
if (holder.config != null &&
event.getEventType() == UsageEvents.Event.CONFIGURATION_CHANGE) {
holder.config.setText(event.getConfiguration().toString());
}
return convertView;
}
private String eventToString(int eventType) {
switch (eventType) {
case UsageEvents.Event.MOVE_TO_FOREGROUND:
return "Foreground";
case UsageEvents.Event.MOVE_TO_BACKGROUND:
return "Background";
case UsageEvents.Event.CONFIGURATION_CHANGE:
return "Config change";
case UsageEvents.Event.USER_INTERACTION:
return "User Interaction";
default:
return "Unknown: " + eventType;
}
}
}
static class ViewHolder {
public TextView packageName;
public TextView state;
public TextView config;
}
}
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