NFC标签上的图片

您可以使用MIME类型记录将图像存储在NFC标签上。例如，如果您的图像是JPEG图像，则应使用MIME类型“ image /
jpeg”。您的NDEF记录可能如下所示：

+----------------------------------------++ MB=1, ME=1, CF=0, SR=0, IL=0, TNF=MIME ++----------------------------------------++ Type Length = 10 ++----------------------------------------++ Payload Length = N          ++----------------------------------------++ image/jpeg       ++----------------------------------------++ <Your image data (N bytes)> ++----------------------------------------+

在Android上，您可以使用

byte[] myImage = ...;NdefRecord myImageRecord = NdefRecord.createMime("image/jpeg", myImage);

或使用的构造函数

NdefRecord

byte[] myImage = ...;NdefRecord myImageRecord = new NdefRecord(        NdefRecord.TNF_MIME_MEDIA,        "image/jpeg".getBytes("US-ASCII"),        null,        myImage);

一旦有了

Tag

NdefMessage ndefMsg = new NdefMessage(new NdefRecord[] { myImageRecord });Tag tag = ...;Ndef ndefTag = Ndef.get(tag);if (ndefTag != null) {    ndefTag.connect();    ndefTag.writeNdefMessage(ndefMsg);    ndefTag.close();} else {    NdefFormatable ndefFormatable = NdefFormatable.get(tag);    if (ndefFormatable != null) {        ndefFormatable.connect();        ndefFormatable.format(ndefMsg);        ndefFormatable.close();    }}