Android NFC
1. 确认nfc是否可用
[java]
NfcManager manager = (NfcManager) Context.getSystemService(Context.NFC_SERVICE);
NfcAdapter adapter = manager.getDefaultAdapter();
if (adapter != null && adapter.isEnabled()) {
// adapter exists and is enabled.
System.out.println("can");
}else{
System.out.println("can't");//
}
NfcManager manager = (NfcManager) Context.getSystemService(Context.NFC_SERVICE);
NfcAdapter adapter = manager.getDefaultAdapter();
if (adapter != null && adapter.isEnabled()) {
// adapter exists and is enabled.
System.out.println("can");
}else{
System.out.println("can't");//
}
2. 如果NFC 没有open，从程序中进入NFC设置界面
[java]
startActivity(new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS));
startActivity(new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS));
note：不能再程序中打开和关闭NFC设置，SDK api 没有提供接口。
