Android中通过pid获取app包名

example :

if(packageNames.length >1){
int pid = Binder.getCallingPid();
int uid = Binder.getCallingUid();
ActivityManager am = (ActivityManager)mContext.getSystemService(mContext.ACTIVITY_SERVICE);
List runningApps = am.getRunningAppProcesses();
if (runningApps != null && runningApps.size() > 0) {
for (ActivityManager.RunningAppProcessInfo app : runningApps) {
if(app.pid == pid && app.uid ==uid){
packageNames[0] = app.processName;
break;
}
}
}
}

网络上的案例：

String callerPackage = getAppNameByPID(getContext(), Binder.getCallingPid());

private String getAppName(int pID){    String processName = "";    ActivityManager am = (ActivityManager)this.getSystemService(ACTIVITY_SERVICE);    List l = am.getRunningAppProcesses();    Iterator i = l.iterator();    PackageManager pm = this.getPackageManager();    while(i.hasNext())     {          ActivityManager.RunningAppProcessInfo info = (ActivityManager.RunningAppProcessInfo)(i.next());          try           {               if(info.pid == pID)              {                  CharSequence c = pm.getApplicationLabel(pm.getApplicationInfo(info.processName, PackageManager.GET_META_DATA));                  //Log.d("Process", "Id: "+ info.pid +" ProcessName: "+ info.processName +"  Label: "+c.toString());                  //processName = c.toString();                  processName = info.processName;              }          }          catch(Exception e)           {                //Log.d("Process", "Error>> :"+ e.toString());          }   }    return processName;}

ActivityManagerService.java

@Override
public List getRunningExternalApplications() {
enforceNotIsolatedCaller("getRunningExternalApplications");
List runningApps = getRunningAppProcesses();
List retList = new ArrayList();
if (runningApps != null && runningApps.size() > 0) {
Set extList = new HashSet();
for (ActivityManager.RunningAppProcessInfo app : runningApps) {
if (app.pkgList != null) {
for (String pkg : app.pkgList) {
extList.add(pkg);
}
}
}

}

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