[英]How to set LE discoverable flag for ibeacon packet inside beacon class of android
[英]java.lang.NoSuchMethodError: android.bluetoothAdapter.getBluetoothLeAdvertiser at org.altbeacon.beacon
在華碩,三星平板電腦上運行操作系統版本4.4.2 Android Beacon Library版本時出錯。
低於問題。
我嘗試更新庫,處理崩潰但仍能看到以下錯誤: -
java.lang.NoSuchMethodError:com.mangomirror.app.activity.HomeActivity上com.mangomirror.app.activity.ab(未知來源)的org.altbeacon.beacon.g。(未知來源)的android.bluetooth.BluetoothAdapter.getBluetoothLeAdvertiser。來自android.os.Handler.dispatchMessage(Handler.java:95)的android.os.Handler.handleCallback(Handler.java:733)的dg $ a $ 1 $ 1.run(未知來源)$ 2.a(未知來源)at android.os.Looper.loop(Looper.java:136)位於java.lang.reflect的java.lang.reflect.Method.invokeNative(Native Method)的android.app.ActivityThread.main(ActivityThread.java:5001)。在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)的com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:785)上的Method.invoke(Method.java:515) at dalvik.system.NativeStart.main(Native Method)
以下是我的代碼: -
public void broadcastAsBeacon(int major, int minor) {
Beacon beacon = new Beacon.Builder()
.setId1("2f234454-cf6d-4a0f-adf2-f4911ba9ffa6")
.setId2(String.valueOf(major))
.setId3(String.valueOf(minor))
.setManufacturer(0x004C)
.setTxPower(txPower)
.setRssi(-89)
.setDataFields(Arrays.asList(new Long[]{0l}))
.build();
BeaconParser beaconParser = new BeaconParser()
.setBeaconLayout("m:2-3=0215,i:4-19,i:20-21,i:22-23,p:24-24");//
try {
beaconTransmitter = new BeaconTransmitter(this, beaconParser);
}catch(Exception e){
Log.i("TAG", String.valueOf(e));
}
if (beaconTransmitter!=null) {
beaconTransmitter.startAdvertising(beacon, new AdvertiseCallback() {
@Override
public void onStartFailure(int errorCode) {
Log.e("Class", "Advertisement start failed with code: " + errorCode);
}
@Override
public void onStartSuccess(AdvertiseSettings settingsInEffect) {
Log.i("class", "Advertisement start succeeded." + settingsInEffect.getTxPowerLevel());
Log.i("class", "Advertisement start succeeded." + settingsInEffect);
}
});
}
}
private boolean isBleEnabled() {
BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (bluetoothAdapter == null) {
// Device does not support Bluetooth
} else {
if (bluetoothAdapter!=null) {
if (!bluetoothAdapter.isEnabled()) {
Intent enableBtIntent = new Intent(ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BLE);
return false;
}
}
}
return true;
}
僅在Android 5.0+上支持傳輸。 根據庫文檔 ,您必須首先通過調用來檢查是否支持傳輸
int result = BeaconTransmitter.checkTransmissionSupported(context);
如果設備支持傳輸,則該方法返回BeaconTransmitter.SUPPORTED。 它也可能會返回:
NOT_SUPPORTED_MIN_SDK
NOT_SUPPORTED_BLE
NOT_SUPPORTED_MULTIPLE_ADVERTISEMENTS (deprecated)
NOT_SUPPORTED_CANNOT_GET_ADVERTISER_MULTIPLE_ADVERTISEMENTS
NOT_SUPPORTED_CANNOT_GET_ADVERTISER
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