java.lang.NoSuchMethodError：org.altbeacon.beacon中的android.bluetoothAdapter.getBluetoothLeAdvertiser

Question

在华硕，三星平板电脑上运行操作系统版本4.4.2 Android Beacon Library版本时出错。

低于问题。

我尝试更新库，处理崩溃但仍能看到以下错误： -

java.lang.NoSuchMethodError：com.mangomirror.app.activity.HomeActivity上com.mangomirror.app.activity.ab（未知来源）的org.altbeacon.beacon.g。（未知来源）的android.bluetooth.BluetoothAdapter.getBluetoothLeAdvertiser。来自android.os.Handler.dispatchMessage（Handler.java:95）的android.os.Handler.handleCallback（Handler.java:733）的dg $ a $ 1 $ 1.run（未知来源）$ 2.a（未知来源）at android.os.Looper.loop（Looper.java:136）位于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）

以下是我的代码： -

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;
}

Answer 1

仅在Android 5.0+上支持传输。根据库docs，您必须首先通过调用来检查是否支持传输

int result = BeaconTransmitter.checkTransmissionSupported(context);

如果设备支持传输，则该方法返回BeaconTransmitter.SUPPORTED。它也可能会返回：

NOT_SUPPORTED_MIN_SDK
NOT_SUPPORTED_BLE
NOT_SUPPORTED_MULTIPLE_ADVERTISEMENTS (deprecated)
NOT_SUPPORTED_CANNOT_GET_ADVERTISER_MULTIPLE_ADVERTISEMENTS
NOT_SUPPORTED_CANNOT_GET_ADVERTISER