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Added a feature of Reading the ID of the NFC Card only with param of "id" #693

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Added a feature of Reading the ID of the NFC Card only with param of "id" #693

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17 changes: 17 additions & 0 deletions app/src/main/java/com/termux/api/apis/NfcAPI.java
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,8 @@
import com.termux.api.util.ResultReturner;
import com.termux.shared.logger.Logger;

import java.nio.charset.StandardCharsets;

public class NfcAPI {

private static final String LOG_TAG = "NfcAPI";
Expand Down Expand Up @@ -165,6 +167,9 @@ public void writeJson(JsonWriter out) throws Exception {
case "full":
readFullNDEFTag(intent,out);
break;
case "id":
readNDEFID(intent,out);
break;
case "noData":
readNDEFTag(intent,out);
break;
Expand Down Expand Up @@ -245,6 +250,18 @@ public void readNDEFTag(Intent intent, JsonWriter out) throws Exception {
}
}

public void readNDEFID(Intent intent, JsonWriter out) throws Exception {
NfcAdapter adapter = NfcAdapter.getDefaultAdapter(this);
byte[] tag_id = intent.getByteArrayExtra(NfcAdapter.EXTRA_ID);
out.beginObject();
StringBuilder sb = new StringBuilder();
for (byte b : tag_id) {
sb.append(String.format("%02X", b));
}
out.name("card_id").value(sb.toString());
out.endObject();
}

public void readFullNDEFTag(Intent intent, JsonWriter out) throws Exception {
Logger.logVerbose(LOG_TAG, "readFullNDEFTag");

Expand Down