我希望我的广播接收器可以捕获用户启动任何应用程序的时间。 是否有可能广播接收器可以捕获这种事件? 如果是,是否有任何权限可以实现?
我希望我的广播接收器可以捕获用户启动任何应用程序的时间。 是否有可能广播接收器可以捕获这种事件? 如果是,是否有任何权限可以实现?
你最好创建一个STICKY服务,跟踪所有正在运行的应用程序。
@Override
public int onStartCommand(Intent intent, int flags, int startId)
{
Timer timer = new Timer();
timer.scheduleAtFixedRate(new TimerTask() {
public void run()
{
final ActivityManager activityManager = (ActivityManager)getSystemService(Context.ACTIVITY_SERVICE);
final List<RunningTaskInfo> services = activityManager.getRunningTasks(Integer.MAX_VALUE);
for (int i = 0; i < services.size(); i++) {
if(!stalkList.contains(services.get(i).baseActivity.getPackageName()))
{
// you may broad cast a new application launch here.
stalkList.add(services.get(i).baseActivity.getPackageName());
}
}
List<RunningAppProcessInfo> procInfos = activityManager.getRunningAppProcesses();
for(int i = 0; i < procInfos.size(); i++) {
ArrayList<String> runningPkgs = new ArrayList<String>(Arrays.asList(procInfos.get(i).pkgList));
Collection diff = subtractSets(runningPkgs, stalkList);
if(diff != null)
{
stalkList.removeAll(diff);
}
}
}
}, 20000, 6000); // every 6 seconds
return START_STICKY;
}
private RunningAppProcessInfo getForegroundApp() {
RunningAppProcessInfo result = null, info = null;
final ActivityManager activityManager = (ActivityManager)getSystemService(Context.ACTIVITY_SERVICE);
List <RunningAppProcessInfo> l = activityManager.getRunningAppProcesses();
Iterator <RunningAppProcessInfo> i = l.iterator();
while(i.hasNext()) {
info = i.next();
if(info.importance == RunningAppProcessInfo.IMPORTANCE_FOREGROUND
&& !isRunningService(info.processName)) {
result = info;
break;
}
}
return result;
}
private boolean isRunningService(String processName) {
if(processName == null)
return false;
RunningServiceInfo service;
final ActivityManager activityManager = (ActivityManager)getSystemService(Context.ACTIVITY_SERVICE);
List <RunningServiceInfo> l = activityManager.getRunningServices(9999);
Iterator <RunningServiceInfo> i = l.iterator();
while(i.hasNext()){
service = i.next();
if(service.process.equals(processName))
return true;
}
return false;
}
private boolean isRunningApp(String processName) {
if(processName == null)
return false;
RunningAppProcessInfo app;
final ActivityManager activityManager = (ActivityManager)getSystemService(Context.ACTIVITY_SERVICE);
List <RunningAppProcessInfo> l = activityManager.getRunningAppProcesses();
Iterator <RunningAppProcessInfo> i = l.iterator();
while(i.hasNext()){
app = i.next();
if(app.processName.equals(processName) && app.importance != RunningAppProcessInfo.IMPORTANCE_SERVICE)
return true;
}
return false;
}
private boolean checkifThisIsActive(RunningAppProcessInfo target){
boolean result = false;
ActivityManager.RunningTaskInfo info;
if(target == null)
return false;
final ActivityManager activityManager = (ActivityManager)getSystemService(Context.ACTIVITY_SERVICE);
List <ActivityManager.RunningTaskInfo> l = activityManager.getRunningTasks(9999);
Iterator <ActivityManager.RunningTaskInfo> i = l.iterator();
while(i.hasNext()){
info=i.next();
if(info.baseActivity.getPackageName().equals(target.processName)) {
result = true;
break;
}
}
return result;
}
// what is in b that is not in a ?
public static Collection subtractSets(Collection a, Collection b)
{
Collection result = new ArrayList(b);
result.removeAll(a);
return result;
}
当其他应用程序启动时,您无法获得广播。您唯一能做的就是启动一个服务来轮询并定期检查是否有新的应用程序已经启动(例如使用Reno上面的代码)。
此外,如果您在手机启动时启动此服务,则有一个相当不错的解决方案。