Merge "Optimize NetworkScan for only User-Enabled RANs" into rvc-dev am: f7fe2b0dec (47efc875) · Commits · e / os / android_packages_apps_Settings

src/com/android/settings/network/telephony/NetworkScanHelper.java

+43 −32

Original line number	Diff line number	Diff line
		@@ -25,6 +25,7 @@ import android.telephony.TelephonyManager;
		import android.telephony.TelephonyScanManager;
		import android.util.Log;

		import java.util.ArrayList;
		import java.util.List;
		import java.util.concurrent.Executor;

		@@ -75,37 +76,6 @@ public class NetworkScanHelper {
		private static final int MAX_SEARCH_TIME_SEC = 300;
		private static final int INCREMENTAL_RESULTS_PERIODICITY_SEC = 3;

		private static final NetworkScanRequest NETWORK_SCAN_REQUEST =
		new NetworkScanRequest(
		NetworkScanRequest.SCAN_TYPE_ONE_SHOT,
		new RadioAccessSpecifier[]{
		// GSM
		new RadioAccessSpecifier(
		AccessNetworkType.GERAN,
		null /* bands */,
		null /* channels */),
		// LTE
		new RadioAccessSpecifier(
		AccessNetworkType.EUTRAN,
		null /* bands */,
		null /* channels */),
		// WCDMA
		new RadioAccessSpecifier(
		AccessNetworkType.UTRAN,
		null /* bands */,
		null /* channels */),
		// NR
		new RadioAccessSpecifier(
		AccessNetworkType.NGRAN,
		null /* bands */,
		null /* channels */)
		},
		SEARCH_PERIODICITY_SEC,
		MAX_SEARCH_TIME_SEC,
		INCREMENTAL_RESULTS,
		INCREMENTAL_RESULTS_PERIODICITY_SEC,
		null /* List of PLMN ids (MCC-MNC) */);

		private final NetworkScanCallback mNetworkScanCallback;
		private final TelephonyManager mTelephonyManager;
		private final TelephonyScanManager.NetworkScanCallback mInternalNetworkScanCallback;
		@@ -120,6 +90,47 @@ public class NetworkScanHelper {
		mExecutor = executor;
		}

		private NetworkScanRequest createNetworkScanForPreferredAccessNetworks() {
		long networkTypeBitmap3gpp = mTelephonyManager.getPreferredNetworkTypeBitmask()
		& TelephonyManager.NETWORK_STANDARDS_FAMILY_BITMASK_3GPP;

		List<RadioAccessSpecifier> radioAccessSpecifiers = new ArrayList<>();
		// If the allowed network types are unknown or if they are of the right class, scan for
		// them; otherwise, skip them to save scan time and prevent users from being shown networks
		// that they can't connect to.
		if (networkTypeBitmap3gpp == 0
		\|\| (networkTypeBitmap3gpp & TelephonyManager.NETWORK_CLASS_BITMASK_2G) != 0) {
		radioAccessSpecifiers.add(
		new RadioAccessSpecifier(AccessNetworkType.GERAN, null, null));
		}
		if (networkTypeBitmap3gpp == 0
		\|\| (networkTypeBitmap3gpp & TelephonyManager.NETWORK_CLASS_BITMASK_3G) != 0) {
		radioAccessSpecifiers.add(
		new RadioAccessSpecifier(AccessNetworkType.UTRAN, null, null));
		}
		if (networkTypeBitmap3gpp == 0
		\|\| (networkTypeBitmap3gpp & TelephonyManager.NETWORK_CLASS_BITMASK_4G) != 0) {
		radioAccessSpecifiers.add(
		new RadioAccessSpecifier(AccessNetworkType.EUTRAN, null, null));
		}
		if (networkTypeBitmap3gpp == 0
		\|\| (networkTypeBitmap3gpp & TelephonyManager.NETWORK_CLASS_BITMASK_5G) != 0) {
		radioAccessSpecifiers.add(
		new RadioAccessSpecifier(AccessNetworkType.NGRAN, null, null));
		}


		return new NetworkScanRequest(
		NetworkScanRequest.SCAN_TYPE_ONE_SHOT,
		radioAccessSpecifiers.toArray(
		new RadioAccessSpecifier[radioAccessSpecifiers.size()]),
		SEARCH_PERIODICITY_SEC,
		MAX_SEARCH_TIME_SEC,
		INCREMENTAL_RESULTS,
		INCREMENTAL_RESULTS_PERIODICITY_SEC,
		null /* List of PLMN ids (MCC-MNC) */);
		}

		/**
		* Request a network scan.
		*
		@@ -134,7 +145,7 @@ public class NetworkScanHelper {
		return;
		}
		mNetworkScanRequester = mTelephonyManager.requestNetworkScan(
		NETWORK_SCAN_REQUEST,
		createNetworkScanForPreferredAccessNetworks(),
		mExecutor,
		mInternalNetworkScanCallback);
		if (mNetworkScanRequester == null) {