diff options
| -rw-r--r-- | nfc/api/system-current.txt | 1 | ||||
| -rw-r--r-- | nfc/java/android/nfc/NfcAdapter.java | 46 | ||||
| -rw-r--r-- | nfc/java/android/nfc/flags.aconfig | 9 |
3 files changed, 45 insertions, 11 deletions
diff --git a/nfc/api/system-current.txt b/nfc/api/system-current.txt index a33e2252019b..055ccbced58a 100644 --- a/nfc/api/system-current.txt +++ b/nfc/api/system-current.txt @@ -27,6 +27,7 @@ package android.nfc { field @FlaggedApi("android.nfc.enable_nfc_mainline") public static final String ACTION_REQUIRE_UNLOCK_FOR_NFC = "android.nfc.action.REQUIRE_UNLOCK_FOR_NFC"; field @FlaggedApi("android.nfc.enable_nfc_mainline") @RequiresPermission(android.Manifest.permission.SHOW_CUSTOMIZED_RESOLVER) public static final String ACTION_SHOW_NFC_RESOLVER = "android.nfc.action.SHOW_NFC_RESOLVER"; field @FlaggedApi("android.nfc.enable_nfc_mainline") public static final String EXTRA_RESOLVE_INFOS = "android.nfc.extra.RESOLVE_INFOS"; + field @FlaggedApi("android.nfc.nfc_set_default_disc_tech") @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public static final int FLAG_SET_DEFAULT_TECH = 1073741824; // 0x40000000 field @FlaggedApi("android.nfc.nfc_vendor_cmd") public static final int MESSAGE_TYPE_COMMAND = 1; // 0x1 field @FlaggedApi("android.nfc.nfc_vendor_cmd") public static final int SEND_VENDOR_NCI_STATUS_FAILED = 3; // 0x3 field @FlaggedApi("android.nfc.nfc_vendor_cmd") public static final int SEND_VENDOR_NCI_STATUS_MESSAGE_CORRUPTED = 2; // 0x2 diff --git a/nfc/java/android/nfc/NfcAdapter.java b/nfc/java/android/nfc/NfcAdapter.java index 06098deb8aff..a9dcd570c7ef 100644 --- a/nfc/java/android/nfc/NfcAdapter.java +++ b/nfc/java/android/nfc/NfcAdapter.java @@ -340,7 +340,8 @@ public final class NfcAdapter { public static final int FLAG_READER_NFC_BARCODE = 0x10; /** @hide */ - @IntDef(flag = true, prefix = {"FLAG_READER_"}, value = { + @IntDef(flag = true, value = { + FLAG_SET_DEFAULT_TECH, FLAG_READER_KEEP, FLAG_READER_DISABLE, FLAG_READER_NFC_A, @@ -438,7 +439,8 @@ public final class NfcAdapter { public static final int FLAG_USE_ALL_TECH = 0xff; /** @hide */ - @IntDef(flag = true, prefix = {"FLAG_LISTEN_"}, value = { + @IntDef(flag = true, value = { + FLAG_SET_DEFAULT_TECH, FLAG_LISTEN_KEEP, FLAG_LISTEN_DISABLE, FLAG_LISTEN_NFC_PASSIVE_A, @@ -449,6 +451,18 @@ public final class NfcAdapter { public @interface ListenTechnology {} /** + * Flag used in {@link #setDiscoveryTechnology(Activity, int, int)}. + * <p> + * Setting this flag changes the default listen or poll tech. + * Only available to privileged apps. + * @hide + */ + @SystemApi + @FlaggedApi(Flags.FLAG_NFC_SET_DEFAULT_DISC_TECH) + @RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS) + public static final int FLAG_SET_DEFAULT_TECH = 0x40000000; + + /** * @hide * @removed */ @@ -1870,14 +1884,6 @@ public final class NfcAdapter { public void setDiscoveryTechnology(@NonNull Activity activity, @PollTechnology int pollTechnology, @ListenTechnology int listenTechnology) { - // A special treatment of the _KEEP flags - if ((listenTechnology & FLAG_LISTEN_KEEP) != 0) { - listenTechnology = -1; - } - if ((pollTechnology & FLAG_READER_KEEP) != 0) { - pollTechnology = -1; - } - if (listenTechnology == FLAG_LISTEN_DISABLE) { synchronized (sLock) { if (!sHasNfcFeature) { @@ -1897,7 +1903,25 @@ public final class NfcAdapter { } } } - mNfcActivityManager.setDiscoveryTech(activity, pollTechnology, listenTechnology); + /* + * Privileged FLAG to set technology mask for all data processed by NFC controller + * Note: Use with caution! The app is responsible for ensuring that the discovery + * technology mask is returned to default. + * Note: FLAG_USE_ALL_TECH used with _KEEP flags will reset the technolody to android default + */ + if (Flags.nfcSetDefaultDiscTech() + && ((pollTechnology & FLAG_SET_DEFAULT_TECH) == FLAG_SET_DEFAULT_TECH + || (listenTechnology & FLAG_SET_DEFAULT_TECH) == FLAG_SET_DEFAULT_TECH)) { + Binder token = new Binder(); + try { + NfcAdapter.sService.updateDiscoveryTechnology(token, + pollTechnology, listenTechnology); + } catch (RemoteException e) { + attemptDeadServiceRecovery(e); + } + } else { + mNfcActivityManager.setDiscoveryTech(activity, pollTechnology, listenTechnology); + } } /** diff --git a/nfc/java/android/nfc/flags.aconfig b/nfc/java/android/nfc/flags.aconfig index cb2a48c2913f..b242a76ffae4 100644 --- a/nfc/java/android/nfc/flags.aconfig +++ b/nfc/java/android/nfc/flags.aconfig @@ -101,3 +101,12 @@ flag { description: "Enable nfc state change API" bug: "319934052" } + +flag { + name: "nfc_set_default_disc_tech" + is_exported: true + namespace: "nfc" + description: "Flag for NFC set default disc tech API" + bug: "321311407" +} + |