android jni 发送广播

通过C去调用am发送广播无效- -，popen和system都无效，哪路大神求救

http://blog.csdn.net/singwhatiwanna/article/details/9066513

加上--user 0
char broadcastIntent[100] = { 0 };
sprintf( broadcastIntent, "am broadcast -a com.tech.test --es state \"Hello\" --ei value %d --user \'0\'", 1);
int ret = system(broadcastIntent);