Filter out unsupported security type for DPP configuration.

There is different Wi-Fi security support between ZXing's Wi-Fi QR code
format and Wi-Fi DPP QR code format.

  ZXing's Wi-Fi QR code format: supports WEP / WPA / none security
  Wi-Fi DPP: supports WPA / SAE

So we will have different UI behavior for different security.

  WEP & none security: only support QR code generator
  WPA: supports both QR code generator & scanner
  SAE: only supports QR code scanner
  others: don't support. The share button is invisible

Bug: 123212410
Test: manual test
Change-Id: I87962d730282fc2c1b96223dca6feb79235fe5a1

src/com/android/settings/wifi/dpp/WifiNetworkConfig.java

@@ -17,6 +17,7 @@
 package com.android.settings.wifi.dpp;
 
 import static com.android.settings.wifi.dpp.WifiQrCode.SECURITY_NO_PASSWORD;
+import static com.android.settings.wifi.dpp.WifiQrCode.SECURITY_SAE;
 import static com.android.settings.wifi.dpp.WifiQrCode.SECURITY_WEP;
 import static com.android.settings.wifi.dpp.WifiQrCode.SECURITY_WPA;
 
@@ -208,6 +209,19 @@ public class WifiNetworkConfig {
         wifiManager.connect(wifiConfiguration, listener);
     }
 
+    public boolean isSupportConfiguratorQrCodeScanner(Context context) {
+        if (!WifiDppUtils.isWifiDppEnabled(context)) {
+            return false;
+        }
+
+        // DPP 1.0 only supports SAE and PSK.
+        if (SECURITY_SAE.equals(mSecurity) || SECURITY_WPA.equals(mSecurity)) {
+            return true;
+        }
+
+        return false;
+    }
+
     /**
      * This is a simplified method from {@code WifiConfigController.getConfig()}
      */