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java: add GAPInquiry example

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This commit is contained in:
Matthias Ringwald 2021-07-15 14:18:05 +02:00
parent a512b22891
commit 3762975ec3
1 changed files with 87 additions and 0 deletions
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platform/daemon/binding/java/example/com/bluekitchen/GAPInquiry.java Normal file
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package com.bluekitchen;
import com.bluekitchen.btstack.BD_ADDR;
import com.bluekitchen.btstack.BTstack;
import com.bluekitchen.btstack.Packet;
import com.bluekitchen.btstack.PacketHandler;
import com.bluekitchen.btstack.Util;
import com.bluekitchen.btstack.event.BTstackEventState;
import com.bluekitchen.btstack.event.GAPEventInquiryResult;
import com.bluekitchen.btstack.event.GAPEventInquiryComplete;
import java.nio.charset.StandardCharsets;
public class Inquiry implements PacketHandler {
private enum STATE {
w4_btstack_working, w4_query_result,
};
private BTstack btstack;
private STATE state;
private void startInquiry(){
state = STATE.w4_query_result;
int duration_in_1_28s = 5;
btstack.GAPInquiryStart(duration_in_1_28s);
}
public void handlePacket(Packet packet){
switch (state){
case w4_btstack_working:
if (packet instanceof BTstackEventState){
BTstackEventState event = (BTstackEventState) packet;
if (event.getState() == 2) {
System.out.println("BTstack working. Start Inquiry");
startInquiry();
}
}
break;
case w4_query_result:
if (packet instanceof GAPEventInquiryResult){
GAPEventInquiryResult result = (GAPEventInquiryResult) packet;
String name = "";
if (result.getNameAvailable() != 0){
name = Util.getText(result.getName(), 0, result.getNameLen());
System.out.println( "Device found " + result.getBdAddr() + ", name: '" + name + "'");
} else {
System.out.println( "Device found " + result.getBdAddr());
}
}
if (packet instanceof GAPEventInquiryComplete){
// TODO: for devices without name, do a gap_remote_name_request
System.out.println("Inquiry done, restart");
startInquiry();
}
break;
default:
break;
}
}
void test(){
System.out.println("Inquiry Test Application");
// connect to BTstack Daemon via default port on localhost
// start: src/BTdaemon --tcp
btstack = new BTstack();
btstack.setTcpPort(BTstack.DEFAULT_TCP_PORT);
btstack.registerPacketHandler(this);
boolean ok = btstack.connect();
if (!ok) {
System.out.println("Failed to connect to BTstack Server");
return;
}
System.out.println("BTstackSetPowerMode(1)");
state = STATE.w4_btstack_working;
btstack.BTstackSetPowerMode(1);
}
public static void main(String args[]){
new Inquiry().test();
}
}