1.android獲取應用的啓動或者是運行的次數的作用主要是用來在用戶第一次啓動的時候,給用戶使用的說明
2.獲取應用啓動的次數,能夠知道用戶的點擊量與使用頻率
PackageManager manager = context.getPackageManager();
Intent intent = new Intent(Intent.ACTION_MAIN);
List<ResolveInfo> infos = manager.queryIntentActivities(intent, 0);
List<ComponentName> names = new ArrayList<ComponentName>();
List<Map<String, String>> list = new ArrayList<Map<String, String>>();
for (ResolveInfo info : infos) {
ComponentName cn = new ComponentName(info.activityInfo.packageName,
info.activityInfo.name);
names.add(cn);
}
IUsageStats mUsageStatsService = IUsageStats.Stub
.asInterface(ServiceManager.getService("usagestats"));
for (ComponentName name : names) {
PkgUsageStats aStats = null;
ApplicationInfo info = null;
try {
aStats = mUsageStatsService.getPkgUsageStats(name);
info = manager.getApplicationInfo(name.getPackageName(),
PackageManager.GET_META_DATA);
} catch (Exception e) {
e.printStackTrace();
}
if (aStats != null && info != null) {
String appName = info.loadLabel(manager).toString();
int count = aStats.launchCount;
if (count == 0) {
continue;
}
Map<String, String> map = new HashMap<String, String>();
map.put("appName", appName);
map.put("count", count + "");
list.add(map);
}
}
這個只能系統應用裏面才能使用
所以需要加入權限android.permission.PACKAGEUSAGESTATS
然後需要把應用放在System/app 才能使用
需要在shell 裏面執行命令:mount -o remount,rw /system 需要Root權限才能使用