Add a WifiScanner API to listener for ongoing scans
Bug: 29412469
Change-Id: Id884851a12f95c89f928b81f5b5baa1f9f80fafe
diff --git a/wifi/java/android/net/wifi/WifiScanner.java b/wifi/java/android/net/wifi/WifiScanner.java
index 2636c3f..716f1d3 100644
--- a/wifi/java/android/net/wifi/WifiScanner.java
+++ b/wifi/java/android/net/wifi/WifiScanner.java
@@ -656,6 +656,40 @@
void onPnoNetworkFound(ScanResult[] results);
}
+ /**
+ * Register a listener that will receive results from all single scans
+ * Either the onSuccess/onFailure will be called once when the listener is registered. After
+ * (assuming onSuccess was called) all subsequent single scan results will be delivered to the
+ * listener. It is possible that onFullResult will not be called for all results of the first
+ * scan if the listener was registered during the scan.
+ *
+ * @param listener specifies the object to report events to. This object is also treated as a
+ * key for this request, and must also be specified to cancel the request.
+ * Multiple requests should also not share this object.
+ * {@hide}
+ */
+ public void registerScanListener(ScanListener listener) {
+ Preconditions.checkNotNull(listener, "listener cannot be null");
+ int key = addListener(listener);
+ if (key == INVALID_KEY) return;
+ validateChannel();
+ mAsyncChannel.sendMessage(CMD_REGISTER_SCAN_LISTENER, 0, key);
+ }
+
+ /**
+ * Deregister a listener for ongoing single scans
+ * @param listener specifies which scan to cancel; must be same object as passed in {@link
+ * #registerScanListener}
+ * {@hide}
+ */
+ public void deregisterScanListener(ScanListener listener) {
+ Preconditions.checkNotNull(listener, "listener cannot be null");
+ int key = removeListener(listener);
+ if (key == INVALID_KEY) return;
+ validateChannel();
+ mAsyncChannel.sendMessage(CMD_DEREGISTER_SCAN_LISTENER, 0, key);
+ }
+
/** start wifi scan in background
* @param settings specifies various parameters for the scan; for more information look at
* {@link ScanSettings}
@@ -1129,6 +1163,10 @@
public static final int CMD_STOP_PNO_SCAN = BASE + 25;
/** @hide */
public static final int CMD_PNO_NETWORK_FOUND = BASE + 26;
+ /** @hide */
+ public static final int CMD_REGISTER_SCAN_LISTENER = BASE + 27;
+ /** @hide */
+ public static final int CMD_DEREGISTER_SCAN_LISTENER = BASE + 28;
private Context mContext;
private IWifiScanner mService;