问题
I want to get the Usage time of all those applications which i have used today.
As i am getting the those details by dialing *#*#4636#*#*.
But i want these details programmatically in android.
please help me out in this.
we can see how these play store apps are able to show the usage Statistics
Break free
App Usage
回答1:
Apps with usage access settings
Activity Classes :-
package com.example.android.appusagestatistics;
import android.app.Activity;
import android.app.usage.UsageStats;
import android.app.usage.UsageStatsManager;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Bundle;
import java.text.DateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Map;
import android.text.format.DateUtils;
import android.util.ArrayMap;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.AdapterView.OnItemSelectedListener;
/**
* Activity to display package usage statistics.
*/
public class UsageStatsActivity extends Activity implements OnItemSelectedListener {
private static final String TAG = "UsageStatsActivity";
private static final boolean localLOGV = false;
private UsageStatsManager mUsageStatsManager;
private LayoutInflater mInflater;
private UsageStatsAdapter mAdapter;
private PackageManager mPm;
public static class AppNameComparator implements Comparator<UsageStats> {
private Map<String, String> mAppLabelList;
AppNameComparator(Map<String, String> appList) {
mAppLabelList = appList;
}
@Override
public final int compare(UsageStats a, UsageStats b) {
String alabel = mAppLabelList.get(a.getPackageName());
String blabel = mAppLabelList.get(b.getPackageName());
return alabel.compareTo(blabel);
}
}
public static class LastTimeUsedComparator implements Comparator<UsageStats> {
@Override
public final int compare(UsageStats a, UsageStats b) {
// return by descending order
return (int)(b.getLastTimeUsed() - a.getLastTimeUsed());
}
}
public static class UsageTimeComparator implements Comparator<UsageStats> {
@Override
public final int compare(UsageStats a, UsageStats b) {
return (int)(b.getTotalTimeInForeground() - a.getTotalTimeInForeground());
}
}
// View Holder used when displaying views
static class AppViewHolder {
TextView pkgName;
TextView lastTimeUsed;
TextView usageTime;
}
class UsageStatsAdapter extends BaseAdapter {
// Constants defining order for display order
private static final int _DISPLAY_ORDER_USAGE_TIME = 0;
private static final int _DISPLAY_ORDER_LAST_TIME_USED = 1;
private static final int _DISPLAY_ORDER_APP_NAME = 2;
private int mDisplayOrder = _DISPLAY_ORDER_USAGE_TIME;
private LastTimeUsedComparator mLastTimeUsedComparator = new LastTimeUsedComparator();
private UsageTimeComparator mUsageTimeComparator = new UsageTimeComparator();
private AppNameComparator mAppLabelComparator;
private final ArrayMap<String, String> mAppLabelMap = new ArrayMap<>();
private final ArrayList<UsageStats> mPackageStats = new ArrayList<>();
UsageStatsAdapter() {
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DAY_OF_YEAR, -5);
final List<UsageStats> stats =
mUsageStatsManager.queryUsageStats(UsageStatsManager.INTERVAL_BEST,
cal.getTimeInMillis(), System.currentTimeMillis());
if (stats == null) {
return;
}
ArrayMap<String, UsageStats> map = new ArrayMap<>();
final int statCount = stats.size();
for (int i = 0; i < statCount; i++) {
final android.app.usage.UsageStats pkgStats = stats.get(i);
// load application labels for each application
try {
ApplicationInfo appInfo = mPm.getApplicationInfo(pkgStats.getPackageName(), 0);
String label = appInfo.loadLabel(mPm).toString();
mAppLabelMap.put(pkgStats.getPackageName(), label);
UsageStats existingStats =
map.get(pkgStats.getPackageName());
if (existingStats == null) {
map.put(pkgStats.getPackageName(), pkgStats);
} else {
existingStats.add(pkgStats);
}
} catch (NameNotFoundException e) {
// This package may be gone.
}
}
mPackageStats.addAll(map.values());
// Sort list
mAppLabelComparator = new AppNameComparator(mAppLabelMap);
sortList();
}
@Override
public int getCount() {
return mPackageStats.size();
}
@Override
public Object getItem(int position) {
return mPackageStats.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// A ViewHolder keeps references to children views to avoid unneccessary calls
// to findViewById() on each row.
AppViewHolder holder;
// When convertView is not null, we can reuse it directly, there is no need
// to reinflate it. We only inflate a new View when the convertView supplied
// by ListView is null.
if (convertView == null) {
convertView = mInflater.inflate(R.layout.usage_stats_item, null);
// Creates a ViewHolder and store references to the two children views
// we want to bind data to.
holder = new AppViewHolder();
holder.pkgName = (TextView) convertView.findViewById(R.id.package_name);
holder.lastTimeUsed = (TextView) convertView.findViewById(R.id.last_time_used);
holder.usageTime = (TextView) convertView.findViewById(R.id.usage_time);
convertView.setTag(holder);
} else {
// Get the ViewHolder back to get fast access to the TextView
// and the ImageView.
holder = (AppViewHolder) convertView.getTag();
}
// Bind the data efficiently with the holder
UsageStats pkgStats = mPackageStats.get(position);
if (pkgStats != null) {
String label = mAppLabelMap.get(pkgStats.getPackageName());
holder.pkgName.setText(label);
holder.lastTimeUsed.setText(DateUtils.formatSameDayTime(pkgStats.getLastTimeUsed(),
System.currentTimeMillis(), DateFormat.MEDIUM, DateFormat.MEDIUM));
holder.usageTime.setText(
DateUtils.formatElapsedTime(pkgStats.getTotalTimeInForeground() / 1000));
} else {
Log.w(TAG, "No usage stats info for package:" + position);
}
return convertView;
}
void sortList(int sortOrder) {
if (mDisplayOrder == sortOrder) {
// do nothing
return;
}
mDisplayOrder= sortOrder;
sortList();
}
private void sortList() {
if (mDisplayOrder == _DISPLAY_ORDER_USAGE_TIME) {
if (localLOGV) Log.i(TAG, "Sorting by usage time");
Collections.sort(mPackageStats, mUsageTimeComparator);
} else if (mDisplayOrder == _DISPLAY_ORDER_LAST_TIME_USED) {
if (localLOGV) Log.i(TAG, "Sorting by last time used");
Collections.sort(mPackageStats, mLastTimeUsedComparator);
} else if (mDisplayOrder == _DISPLAY_ORDER_APP_NAME) {
if (localLOGV) Log.i(TAG, "Sorting by application name");
Collections.sort(mPackageStats, mAppLabelComparator);
}
notifyDataSetChanged();
}
}
/** Called when the activity is first created. */
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.usage_stats);
mUsageStatsManager = (UsageStatsManager) getSystemService(Context.USAGE_STATS_SERVICE);
mInflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mPm = getPackageManager();
Spinner typeSpinner = (Spinner) findViewById(R.id.typeSpinner);
typeSpinner.setOnItemSelectedListener(this);
ListView listView = (ListView) findViewById(R.id.pkg_list);
mAdapter = new UsageStatsAdapter();
listView.setAdapter(mAdapter);
}
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
mAdapter.sortList(position);
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// do nothing
}
}
Layout :-
1. usage_stats.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:text="@string/display_order_text"
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<Spinner
android:id="@+id/typeSpinner"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:entries="@array/usage_stats_display_order_types" />
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TextView
android:text="@string/app_name_label"
android:textAppearance="?android:attr/textAppearanceMedium"
android:layout_width="wrap_content"
android:paddingEnd="6dip"
android:layout_height="wrap_content" />
<TextView
android:text="@string/last_time_used_label"
android:paddingEnd="6dip"
android:textAppearance="?android:attr/textAppearanceMedium"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:text="@string/usage_time_label"
android:textAppearance="?android:attr/textAppearanceMedium"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
<ListView android:id="@+id/pkg_list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:drawSelectorOnTop="false" />
</LinearLayout>
2. usage_stats_item.xml
<?xml version="1.0" encoding="utf-8"?><!--
/*
** Copyright 2008, 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.
*/
-->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="?android:attr/listPreferredItemHeight"
android:orientation="horizontal">
<TextView
android:id="@+id/package_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:maxLines="1"
android:paddingEnd="6dip"
android:paddingStart="12dip"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/last_time_used"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:maxLines="1"
android:paddingEnd="6dip"
android:paddingStart="12dip"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/usage_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:maxLines="1"
android:paddingEnd="6dip"
android:paddingStart="12dip"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
Values :-
arrays.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string-array name="usage_stats_display_order_types">
<item>Usage time</item>
<item>Last time used</item>
<item>App name</item>
</string-array>
</resources>
string.xml
<string name="open_app_usage_setting">Open Apps with usage access settings</string>
<string name="last_time_used">"Last time used: "</string>
<string name="time_span">"Time span: "</string>
<string name="display_order_text">Sort by:</string>
<string name="app_name_label">App</string>
<string name="last_time_used_label">Last time used</string>
<!-- label for usage time -->
<string name="usage_time_label">Usage time</string>
user permissions :-
<uses-permission android:name="android.permission.PACKAGE_USAGE_STATS"/>
回答2:
From Android 5.0 we can use android.app.usage.usageStats to get the total time an app has been used by accessing getTotalTimeInForeground(). For more details, refer here
回答3:
TLDR
if you used @chand_becse code and your list is empty just add this reguestPermissions method and call this in your onCreate method(right after UsageStatsManager is initialized)
Chand becse answer is completely valid, though you have to bear in mind that your application needs permission to use stats from other apps. Because permision.PACKAGE_USAGE is something that you can't just simply ask user for, you have to redirect him to ACTION_USAGE_ACCESS_SETTINGS view and let him turn on those permissions manually. I've also noticed that every time I'm getting -1 when I check if my application already got permissions(even if it has already obtained them), so I'm checking if the stats list is empty. If it is I assume my application needs permissions for this functionality.
private void requestPermissions() {
List<UsageStats> stats = mUsageStatsManager
.queryUsageStats(UsageStatsManager.INTERVAL_DAILY, 0, System.currentTimeMillis());
boolean isEmpty = stats.isEmpty();
if (isEmpty) {
startActivity(new Intent(Settings.ACTION_USAGE_ACCESS_SETTINGS));
}
}
来源：https://stackoverflow.com/questions/32825854/how-to-get-the-time-spent-on-an-application-in-android-programmatically