Force 2.4GHz WiFi on Android 11

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  That's the function I'm using for updat

  private fun updateSettingsDatabase(settingsDao: SettingsDao) {
          lifecycleScope.launch {
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                  1,
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  I specified nightMode= because I thought that this way I'm only updating this colummn, but it turns out that it resets every column, how do I update a single column, while keeping the values the rest of the columns?
• Using EdittextPreference for Goto search

  sorry for my poor English. I want to use EditTextPreference in my bottom nav like the pic below, ![screenshot][1]

  I have recycleview xml in my project with in many sub cardview layouts(which is scrollable) and I want to create item in the bottom nav which is called "Goto". When the "Goto" item is clicked i want it to pop-up like the screenshot. And when user enters a number(according to the cardviews i.e if the number of cardview is 40 user must enter 1-40) I want to search the cardview by its ID. Thank you and I hope u got it, If u have any questions let me know [1]: https://i.stack.imgur.com/grK8P.jpg

  My xml format look like this. As you see in the blow since the cardviews are huge in number it is not cool to scroll all the way down that is why i need Goto item in the bottom nav to search it by its ID when the user click number in the EditTextPreference as u see in the screenshot. i.e The screenshot is not from my app

  <LinearLayout>
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      <RealtiveLayout>
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      <RealtiveLayout>
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   <LinearLayout>
    <androidx.cardview.widget.CardView>
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  <LinearLayout>
    <androidx.cardview.widget.CardView>
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         <Textview/>
      <RealtiveLayout>
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   </LinearLayout>
  
    <LinearLayout>
    <androidx.cardview.widget.CardView>
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      <RealtiveLayout>
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    ..
    ..
  
    ..
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• Trying to get a Pi (with Volumio) to connect to my wifi hotspot

  So I know this is involved with the Volumio OS, but I was hoping to reach any proficient Linux/Pi users that know how to mess with the supplicant.conf file and things I should look for when connecting a Pi to my phones hotspot. I don't get a lot of help on Volumio forums, I have my CCNA, and know some coding methods. I really want to get my home project working, so that's why I'm asking here.

  I basically have not been able to get my pi to connect to only my hotspot. Currently it works if I have my hotspot on, and connect to my home wifi. I used journtalctl commands and found something that looks weird:

  When I connect to my phone hotspot, I see it goes through the handshake steps, checks for the proper key, it says “connected to: Pixel 5”, “key negotiation completed”, “send eapol packet, recv eapol packet”, Once it gets to association it says " association success", Then: “rtw_cfg80211_indicates_connect(wlan0) BSS not found !!” then it has another association success, with it basically looking like it fails saying “Trying to associate with (instert my AP MAC ADDR)” I have not been able to use Wireshark but I think it's failing to associate. Is that what this looks like? I’ve never had an association issue before. Another weird thing is when I command “sudo iwconfig” it says “security mode: open” not sure if that is supposed to show my wifi encryption method instead?

  It's really late so, tomorrow I will borrow a friends phone, because I'm not sure it's working completely with my phone.
• How to fix the problem with error "No virtual method" on android

  I am writing an application in android studio for android Pie. I want to get wifi info.

      @RequiresApi(api = Build.VERSION_CODES.S)
      public String getData() {       
   
          String wifiDataTest;
          WifiInfo wifiInfo = wifiManager.getConnectionInfo();
          int frequency = wifiInfo.getFrequency();
          int ipAddress = wifiInfo.getIpAddress();
          int speed = wifiInfo.getLinkSpeed();
          String ssid = wifiInfo.getSSID();
          int wifiStandard = wifiInfo.getWifiStandard();
  
          wifiDataTest = "Frequency [MHz]: " + frequency + "\nIP address: " + ipAddress
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          return "WIFI\n" + wifiDataTest;
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  With int wifiStandard = wifiInfo.getWifiStandard (); shows me the error:

  E/AndroidRuntime: FATAL EXCEPTION: main
      Process: com.example.sensors, PID: 11040
      java.lang.NoSuchMethodError: No virtual method getWifiStandard()I in class Landroid/net/wifi/WifiInfo; or its super classes (declaration of 'android.net.wifi.WifiInfo' appears in /system/framework/framework.jar)
  

  I have not found information about such an error anywhere. Everything before getWifiStandard (); worked fine.