获取当前的进程名

获取当前的进程名，一般用来在App中判断当前进程是否为主进程（相对于应用的服务进程或自定义的进程来说）。

private String getCurrentProcessName(Context context) {
    int pid = android.os.Process.myPid();
    ActivityManager activityManager = ;
    if (activityManager == null) {
        return null;
    }
    List<ActivityManager.RunningAppProcessInfo> appProcessList = activityManager.getRunningAppProcesses();
    if (appProcessList != null && appProcessList.length() > 0) {
        for (ActivityManager.RunningAppProcessInfo appProcess : appProcessList) {
            if (appProcess.pid == pid) {
                return appProcess.processName;
            }
        }

    }
    return null;
}