1.针对5.0以上的安卓系统，有系统API:可以使用android.app.usage.UsageStatsManager,闲话不多说，直接po代码如下：
mUsageStatsManager= (UsageStatsManager).getSystemService(Context.USAGE_STATS_SERVICE);
Calendar cal = Calendar.getInstance();
cal.add(Calendar.YEAR, -1);
List queryUsageStats = getUsageStatistics(1);
PackageManager pm = getApplicationContext().getPackageManager();
for(inti =0; i < queryUsageStats.size(); i++) {
UsageStats usageStats = queryUsageStats.get(i);
Class c = usageStats.getClass();
try{
//mLaunchCount 我理解的它就是是app启动次数，这是被@hide修饰的成员变量。只能用反射得到它的 值。但是有个现象是，启动次不
//准，从桌面点进去记数2，从后台进入记数1，时间间隔为一天，总的统计次数也不准确
Field field = c.getDeclaredField("mLaunchCount");
field.setAccessible(true);
Field field1 = c.getDeclaredField("mBeginTimeStamp");
field1.setAccessible(true);
Field field2 = c.getDeclaredField("mEndTimeStamp");
field2.setAccessible(true);
ApplicationInfo applicationInfo = pm.getApplicationInfo(usageStats.getPackageName(), PackageManager.GET_META_DATA);
String appName = pm.getApplicationLabel(applicationInfo).toString();
PackageInfo packageInfo = pm.getPackageInfo(usageStats.getPackageName(),0);
//应用首次装时间
longfirstInstallTime = packageInfo.firstInstallTime;
//格式化成年月日
String firstInstallTime1 = transferLongToDate("yyyy-MM-dd HH:mm:ss", firstInstallTime);
//应用最后一次更新时间
long lastUpdateTime = packageInfo.lastUpdateTime;
String lastUpdateTime1 = transferLongToDate("yyyy-MM-dd HH:mm:ss", lastUpdateTime);
Log.i("应用:"+usageStats.getPackageName(),"first install time : "+ firstInstallTime1 +" last update time :"+ lastUpdateTime1);
//这部分的时间，我没有搞太明白，请自行验证
long firstTimeStamp = usageStats.getFirstTimeStamp();
String firstTimeStamp1 = transferLongToDate("yyyy-MM-dd HH:mm:ss", firstTimeStamp);
long LastTimeStamp = usageStats.getLastTimeStamp();
String LastTimeStamp1 = transferLongToDate("yyyy-MM-dd HH:mm:ss", LastTimeStamp);
long LastTimeUsed = usageStats.getLastTimeUsed();
String LastTimeUsed1 = transferLongToDate("yyyy-MM-dd HH:mm:ss", LastTimeUsed);
long mBeginTimeStamp = field1.getLong(usageStats);
String mBeginTimeStamp1 = transferLongToDate("yyyy-MM-dd HH:mm:ss", mBeginTimeStamp);
long mEndTimeStamp = field2.getLong(usageStats);
String mEndTimeStamp1 = transferLongToDate("yyyy-MM-dd HH:mm:ss", mEndTimeStamp);
//这部分的时间，我没有搞太明白，请自行验证
Log.i("使用列表...field...","应用名："+ appName +"\n包名："+ usageStats.getPackageName() +"\nfirstTimeStamp:"+ firstTimeStamp1
+"\nLastTimeStamp:"+ LastTimeStamp1 +"\nLastTimeUsed:"+ LastTimeUsed1
+"，\n启动次数："+ field.getInt(usageStats)
+"，\nmBeginTimeStamp："+mBeginTimeStamp1+"，\nmEndTimeStamp："+mEndTimeStamp1);
}catch(Exception e) {
e.printStackTrace();
}
}
public List getUsageStatistics(intintervalType) {
// Get the app statistics since one year ago from the current time.
Calendar cal = Calendar.getInstance();
cal.add(Calendar.YEAR, -1);
List queryUsageStats =mUsageStatsManager
.queryUsageStats(UsageStatsManager.INTERVAL_DAILY, cal.getTimeInMillis(),
System.currentTimeMillis());
if(queryUsageStats.size() ==0) {
Log.i("使用列表...","The user may not allow the access to apps usage. ");
Toast.makeText(MainActivity.this,
getString(R.string.action_settings),
Toast.LENGTH_LONG).show();
// mOpenUsageSettingButton.setVisibility(View.VISIBLE);
// mOpenUsageSettingButton.setOnClickListener(new View.OnClickListener() {
// @Override public void onClick(View v) {
// startActivity(new Intent(Settings.ACTION_USAGE_ACCESS_SETTINGS));
// }
// });
startActivity(newIntent(Settings.ACTION_USAGE_ACCESS_SETTINGS));
}
returnqueryUsageStats;
}
- 5.0以下的系统就比较复杂了，需要系统权限，结论也需要验证，方法如下：
/**
* Use reflect to get Package Usage Statistics data.
*/
public void getPkgUsageStats() {
Log.d(TAG, "[getPkgUsageStats]");
try {
Class cServiceManager = Class
.forName("android.os.ServiceManager");
Method mGetService = cServiceManager.getMethod("getService",
java.lang.String.class);
Object oRemoteService = mGetService.invoke(null, "usagestats");
// IUsageStats oIUsageStats =
// IUsageStats.Stub.asInterface(oRemoteService)
Class cStub = Class
.forName("com.android.internal.app.IUsageStats$Stub");
Method mUsageStatsService = cStub.getMethod("asInterface",
android.os.IBinder.class);
Object oIUsageStats = mUsageStatsService.invoke(null,
oRemoteService);
// PkgUsageStats[] oPkgUsageStatsArray =
// mUsageStatsService.getAllPkgUsageStats();
Class cIUsageStatus = Class
.forName("com.android.internal.app.IUsageStats");
Method mGetAllPkgUsageStats = cIUsageStatus.getMethod(
"getAllPkgUsageStats", (Class[]) null);
Object[] oPkgUsageStatsArray = (Object[]) mGetAllPkgUsageStats
.invoke(oIUsageStats, (Object[]) null);
Log.d(TAG, "[getPkgUsageStats] oPkgUsageStatsArray = " + oPkgUsageStatsArray);
Class cPkgUsageStats = Class
.forName("com.android.internal.os.PkgUsageStats");
StringBuffer sb = new StringBuffer();
sb.append("nerver used : ");
for (Object pkgUsageStats : oPkgUsageStatsArray) {
// get pkgUsageStats.packageName, pkgUsageStats.launchCount,
// pkgUsageStats.usageTime
String packageName = (String) cPkgUsageStats.getDeclaredField(
"packageName").get(pkgUsageStats);
int launchCount = cPkgUsageStats
.getDeclaredField("launchCount").getInt(pkgUsageStats);
long usageTime = cPkgUsageStats.getDeclaredField("usageTime")
.getLong(pkgUsageStats);
if (launchCount > 0)
Log.d(TAG, "[getPkgUsageStats] " + packageName + " count: "
+ launchCount + " time: " + usageTime);
else {
sb.append(packageName + "; ");
}
}
Log.d(TAG, "[getPkgUsageStats] " + sb.toString());
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (NoSuchFieldException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
}
这是获取信息的两种实现方式，另外，要想让程序能够正常运行并成功获取到数据，我们还需要做如下的配置：
1、在AndroidManifest.xml中增加android:sharedUserId="android.uid.system"
android:versionCode="1"
android:versionName="1.0"
android:sharedUserId="android.uid.system" >
还有权限的声明
2、对apk进行系统签名，在源码中取platform.pk8、platform.x509.pem、signapk.jar文件并通过如下命令实现apk的签名
java -jar signapk.jar platform.x509.pem platform.pk8 unsigned.apk signed.apk
unsigned.apk为签名之前的apk，signed.apk为通过命令签名成功的apk
作个总结：
结论是半忧半喜的，关于5.0以上系统统计启动次数，系统提供API不准，如果不在第三方应用植入自己的sdk,统计第三方应用的启动次数不靠谱，但是要收集安装时间是可以的。