小编Rit*_*ika的帖子

我想在broadcastReceiver中检查设备是否已连接.下面是我的代码:

public boolean isOnline(Context context) {
NetworkInfo info = (NetworkInfo) ((ConnectivityManager) context
        .getSystemService(Context.CONNECTIVITY_SERVICE)).getActiveNetworkInfo();

if (info == null || !info.isConnected()) {
    Log.e("UpdateDataReceiver","info: "+info);
    return false;
}
return true;
}

我的代码问题: 当BroadcastReceiver在后台触发时(当app在后台时),上面的函数返回false(即使连接了wifi),当app在前台时它返回true.

info:NetworkInfo:type:WIFI [],state:DISCONNECTED/BLOCKED,reason :( unspecified),extra:(none),漫游:false,failover:false,isAvailable:true,isConnectedToProvisioningNetwork:false,simId:0

设备信息:Redmi Note