Add API to control scan always mode

Bug: 8141918
Change-Id: I1e5e45e514726c2cbfd86e747123e477e00fd7ed

2 files changed, 31 insertions, 2 deletions

diff --git a/wifi/java/android/net/wifi/IWifiManager.aidl b/wifi/java/android/net/wifi/IWifiManager.aidl
index e0684fb..f093b52 100644
--- a/wifi/java/android/net/wifi/IWifiManager.aidl
+++ b/wifi/java/android/net/wifi/IWifiManager.aidl
@@ -73,8 +73,6 @@ interface IWifiManager
 
     boolean isScanningAlwaysAvailable();
 
-    void setScanningAlwaysAvailable(boolean enable);
-
     boolean acquireWifiLock(IBinder lock, int lockType, String tag, in WorkSource ws);
 
     void updateWifiLockWorkSource(IBinder lock, in WorkSource ws);
diff --git a/wifi/java/android/net/wifi/WifiManager.java b/wifi/java/android/net/wifi/WifiManager.java
index a2df64b..f654310 100644
--- a/wifi/java/android/net/wifi/WifiManager.java
+++ b/wifi/java/android/net/wifi/WifiManager.java
@@ -393,6 +393,21 @@ public class WifiManager {
     public static final String NETWORK_IDS_CHANGED_ACTION = "android.net.wifi.NETWORK_IDS_CHANGED";
 
     /**
+     * Activity Action: Show a system activity that allows the user to enable
+     * scans to be available even with Wi-Fi turned off.
+     *
+     * <p>Notification of the result of this activity is posted using the
+     * {@link android.app.Activity#onActivityResult} callback. The
+     * <code>resultCode</code>
+     * will be {@link android.app.Activity#RESULT_OK} if scan always mode has
+     * been turned on or {@link android.app.Activity#RESULT_CANCELED} if the user
+     * has rejected the request or an error has occurred.
+     */
+    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
+    public static final String ACTION_REQUEST_SCAN_ALWAYS_AVAILABLE =
+            "android.net.wifi.action.REQUEST_SCAN_ALWAYS_AVAILABLE";
+
+    /**
      * Activity Action: Pick a Wi-Fi network to connect to.
      * <p>Input: Nothing.
      * <p>Output: Nothing.
@@ -763,6 +778,22 @@ public class WifiManager {
     }
 
     /**
+     * Check if scanning is always available.
+     *
+     * If this return {@code true}, apps can issue {@link #startScan} and fetch scan results
+     * even when Wi-Fi is turned off.
+     *
+     * To change this setting, see {@link #ACTION_REQUEST_SCAN_ALWAYS_AVAILABLE}.
+     */
+    public boolean isScanningAlwaysAvailable() {
+        try {
+            return mService.isScanningAlwaysAvailable();
+        } catch (RemoteException e) {
+            return false;
+        }
+    }
+
+    /**
      * Tell the supplicant to persist the current list of configured networks.
      * <p>
      * Note: It is possible for this method to change the network IDs of