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android - 如何从 HostApduService 向 Activity 发送消息?

转载 作者:太空宇宙 更新时间:2023-11-03 12:52:00 25 4
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我想轻松地将字符串传递给 Activity。需要回调之类的东西,因为当必须传递字符串时,Activity 必须做一些事情。

public class MyHostApduService extends HostApduService {
@Override
public byte[] processCommandApdu(byte[] apdu, Bundle extras) {
if (selectAidApdu(apdu)) {
Log.i("HCEDEMO", "Application selected");
return getWelcomeMessage();
}
else {
if (exchangeDataApdu(apdu)) {
Log.i("HCEDEMO", "Data exchanged");

// int _len_ = apdu[4];
String _data_ = new String(apdu).substring(5, apdu.length - 1);
// TODO: Send _data_ to an activity...

return new byte[] { (byte)0x90, (byte)0x00 };
}
else {
Log.i("HCEDEMO", "Received: " + new String(apdu));
return getNextMessage();
}
}
}
}

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