Android 信标库的信标发射器中的错误代码 2
Error code 2 in beacon transmitter for Android Beacon library
我想使用 Android 信标库发送 BLE 广告。下面是我为此使用的代码。
package com.example.beacon_emitter;
import java.util.Arrays;
import org.altbeacon.beacon.Beacon;
import org.altbeacon.beacon.BeaconParser;
import org.altbeacon.beacon.BeaconTransmitter;
import android.support.v7.app.ActionBarActivity;
import android.app.Activity;
import android.bluetooth.le.AdvertiseCallback;
import android.bluetooth.le.AdvertiseSettings;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Beacon beacon = new Beacon.Builder()
.setId1("2f234454-cf6d-4a0f-adf2-f4911ba9ffa6")
.setId2("1")
.setId3("2")
.setManufacturer(0x0118)
.setTxPower(-59)
.setDataFields(Arrays.asList(new Long[] {0l}))
.build();
BeaconParser beaconParser = new BeaconParser()
.setBeaconLayout("m:2-3=beac,i:4-19,i:20-21,i:22-23,p:24-24,d:25-25");
BeaconTransmitter beaconTransmitter = new BeaconTransmitter(getApplicationContext(), beaconParser);
beaconTransmitter.startAdvertising(beacon,new AdvertiseCallback() {
@Override
public void onStartFailure(int errorCode) {
Log.e("beacon", "Advertisement start failed with code: "+errorCode);
}
@Override
public void onStartSuccess(AdvertiseSettings settingsInEffect) {
Log.i("beacon", "Advertisement start succeeded.");
}
});
int result = BeaconTransmitter.checkTransmissionSupported(getApplicationContext());
Toast.makeText(this, "Device info " + result, Toast.LENGTH_LONG).show();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
它总是给我一个错误代码 2,ADVERTISE_FAILED_TOO_MANY_ADVERTISERS。但奇怪的是,当我检查 toast 消息时,它说我的设备支持信标传输。我很迷惑。
请帮忙!
提前致谢。
几点提示:
BeaconTransmitter.checkTransmissionSupported()
方法只检查设备是否有蓝牙 LE,操作系统会给你一个 BluetoothAdvertiser
。
要查看其他人是否已成功让您的设备进行传输,请查看它是否在此列表中:http://altbeacon.github.io/android-beacon-library/beacon-transmitter-devices.html
ADVERTISE_FAILED_TOO_MANY_ADVERTISERS 响应可以指示另一个应用程序正在广告信标,并且所有广告位都已使用。确保您没有任何其他应用程序在后台播放广告。如有必要,请重新启动或卸载可能正在执行此操作的其他应用程序。
试试基于同一个库的Locate Beacon app,看看它是否能成功发布信标。这将消除您的代码可能出现的任何问题。
编辑: 根据下面的评论,可以合理地得出结论,Intrynsyc 评估套件的固件没有正确实现 Android 和蓝牙芯片。否则它要么报告广告不可用,要么在开始广告时不会 return 出现错误消息。适当的下一步是打开 Intrynsyc 的问题并报告这些发现。
The ability to transmit as a beacon requires Bluetooth LE
advertisement capability, which may or may not be supported by a
device’s firmware.
我想使用 Android 信标库发送 BLE 广告。下面是我为此使用的代码。
package com.example.beacon_emitter;
import java.util.Arrays;
import org.altbeacon.beacon.Beacon;
import org.altbeacon.beacon.BeaconParser;
import org.altbeacon.beacon.BeaconTransmitter;
import android.support.v7.app.ActionBarActivity;
import android.app.Activity;
import android.bluetooth.le.AdvertiseCallback;
import android.bluetooth.le.AdvertiseSettings;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Beacon beacon = new Beacon.Builder()
.setId1("2f234454-cf6d-4a0f-adf2-f4911ba9ffa6")
.setId2("1")
.setId3("2")
.setManufacturer(0x0118)
.setTxPower(-59)
.setDataFields(Arrays.asList(new Long[] {0l}))
.build();
BeaconParser beaconParser = new BeaconParser()
.setBeaconLayout("m:2-3=beac,i:4-19,i:20-21,i:22-23,p:24-24,d:25-25");
BeaconTransmitter beaconTransmitter = new BeaconTransmitter(getApplicationContext(), beaconParser);
beaconTransmitter.startAdvertising(beacon,new AdvertiseCallback() {
@Override
public void onStartFailure(int errorCode) {
Log.e("beacon", "Advertisement start failed with code: "+errorCode);
}
@Override
public void onStartSuccess(AdvertiseSettings settingsInEffect) {
Log.i("beacon", "Advertisement start succeeded.");
}
});
int result = BeaconTransmitter.checkTransmissionSupported(getApplicationContext());
Toast.makeText(this, "Device info " + result, Toast.LENGTH_LONG).show();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
它总是给我一个错误代码 2,ADVERTISE_FAILED_TOO_MANY_ADVERTISERS。但奇怪的是,当我检查 toast 消息时,它说我的设备支持信标传输。我很迷惑。
请帮忙!
提前致谢。
几点提示:
BeaconTransmitter.checkTransmissionSupported()
方法只检查设备是否有蓝牙 LE,操作系统会给你一个BluetoothAdvertiser
。要查看其他人是否已成功让您的设备进行传输,请查看它是否在此列表中:http://altbeacon.github.io/android-beacon-library/beacon-transmitter-devices.html
ADVERTISE_FAILED_TOO_MANY_ADVERTISERS 响应可以指示另一个应用程序正在广告信标,并且所有广告位都已使用。确保您没有任何其他应用程序在后台播放广告。如有必要,请重新启动或卸载可能正在执行此操作的其他应用程序。
试试基于同一个库的Locate Beacon app,看看它是否能成功发布信标。这将消除您的代码可能出现的任何问题。
编辑: 根据下面的评论,可以合理地得出结论,Intrynsyc 评估套件的固件没有正确实现 Android 和蓝牙芯片。否则它要么报告广告不可用,要么在开始广告时不会 return 出现错误消息。适当的下一步是打开 Intrynsyc 的问题并报告这些发现。
The ability to transmit as a beacon requires Bluetooth LE advertisement capability, which may or may not be supported by a device’s firmware.