/** 初始化时用以生成超高频对象，以后就可以直接用rfid()来调用了。 */
public static StUhf getRfid() {
if (rfid == null) {
StUhf rf = null;
if (getSavedModel() == null) {
rf = StUhf.getUhfInstance(); // InterrogatorModel.InterrogatorModelD2
} else {
rf = StUhf.getUhfInstance(getSavedModel());
}
if (rf == null) {
Log.e(TAG, "Rfid instance is null,exit");
return null;
}
boolean b = rf.init();
if (b == false) {
Log.e(TAG, "cannot init rfid");
return null;
}
rfid = rf;
StUhf.InterrogatorModel model = rfid.getInterrogatorModel();
saveModelName(model);
switch (model) {
case InterrogatorModelA:
case InterrogatorModelB:
case InterrogatorModelC:
case InterrogatorModelD2:
// case InterrogatorModelE:
break;
default:
throw new IllegalStateException(
"new rfid model found,please check your code for compatibility.");
}
}
return rfid;
}
