Added support for (re)-connecting to tag technologies.

- Connect() now takes a technology as an argument.
- NativeNfcTag now knows to which technology it is connected.

The default connected handle is for now always the first in the
tech list; also, NDEF is only checked on the first tech.

Still to be done:
- Check ndef on other techs if not found on first
- Expose the connect(technology) API to the framework
- Fix some calls that still use nfc_jni_get_tag_handle and need to work
    on the selected technology instead.
- Get rid of mHandle and the globals for keeping tag handles

Change-Id: If76d4d458565ab0be7ca986c080a59ed8fd0668f

1 files changed, 3 insertions, 0 deletions

diff --git a/jni/com_android_nfc_NativeNfcManager.cpp b/jni/com_android_nfc_NativeNfcManager.cpp
index 0a54c20..9ac00b4 100644
--- a/jni/com_android_nfc_NativeNfcManager.cpp
+++ b/jni/com_android_nfc_NativeNfcManager.cpp
@@ -959,6 +959,9 @@ static void nfc_jni_Discovery_notification_callback(void *pContext,
 
         f = e->GetFieldID(tag_cls, "mTechHandles", "[I");
         e->SetObjectField(tag, f, handleList);
+
+        f = e->GetFieldID(tag_cls, "mConnectedTechnology", "I");
+        e->SetIntField(tag, f,(jint)-1);
       }
 
       /* Set tag handle */