Android低功耗蓝牙BLE写入数据很大几率会失败 求解

Question

1、问题描述

最近进行Android ble的开发，遇到最大的问题就是在往characteristic中写入数据的时候，会有一个成功率抖动的问题，常会出现第一次写入失败，必须再写一次才成功的情况。
每次往characteristic中写入数据的时候，应该要回调onCharacteristicWrite这个方法的，如果失败了，根本就不回调这个方法，导致我甚至无出判断成功还是失败，无法再逻辑代码中去重写，只能在交互界面重复操作。

2、具体代码

下面我贴出我大致代码。

2.1BluetoothGattCallback

private void connectDevice() {
        mDevice.connectGatt(this, false, new BluetoothGattCallback() {
            @Override
            public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
                if (newState == BluetoothProfile.STATE_CONNECTED) {
                    Log.d("MainActivity", "连接成功");
                    mGatt = gatt;
                    mGatt.connect();
                    gatt.discoverServices();
                }
            }

            @Override
            public void onServicesDiscovered(final BluetoothGatt gatt, int status) {
                if (status == BluetoothGatt.GATT_SUCCESS) {
                    List<BluetoothGattService> services = gatt.getServices();
                    mGattService = services.get(4);
                    BluetoothGattCharacteristic notificationCharacteristic = mGattService.getCharacteristics().get(0);
                    mWriteCharacteristic = services.get(4).getCharacteristics().get(1);
                    mSimpleIO.setString("notificationUUID", notificationCharacteristic.getUuid().toString());
                    gatt.setCharacteristicNotification(notificationCharacteristic, true);
                }
            }

            @Override
            public void onCharacteristicWrite(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status) {
                if (status == BluetoothGatt.GATT_SUCCESS) {
                    switch (mCurrState) {
                        case ConstantContainer.VERIFY_DEFAULT_KEY:
                            alterNewKey(gatt, characteristic);
                            break;
                        case ConstantContainer.ALTER_KEY:
                            bondSuccess();
                            break;
                        case ConstantContainer.REMOVE_BOND:
                            mGatt.disconnect();
                            try {
                                if (removeBond(mDevice)) {
                                    mSimpleIO.remove("deviceAddress");
                                    mSimpleIO.remove("notificationUUID");
                                    runOnUiThread(new Runnable() {
                                        @Override
                                        public void run() {
                                            showFindLayout();
                                        }
                                    });
                                }
                            } catch (Exception e) {
                                e.printStackTrace();
                            }

                            break;
                    }
                } else {
                    switch (mCurrState) {
                        case ConstantContainer.VERIFY_DEFAULT_KEY:
                            Log.d("BluetoothActivity", "验证初始密码失败");
                            break;
                        case ConstantContainer.ALTER_KEY:
                            Log.d("BluetoothActivity", "修改密码失败");
                            break;
                        case ConstantContainer.REMOVE_BOND:
                            Log.d("BluetoothActivity", "删除配对失败");
                            break;
                    }
                }
            }

            @Override
            public void onCharacteristicChanged(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic) {
             
            }
        });
        

上面的代码是BluetoothGattCallback的几个主要回调，可以看到我在onCharacteristicWrite中对他的status做了判断，想要定位写入是否成功，但结果是失败的情况下，并不回调这个方法。

2.2 写入部分

    private void alterNewKey(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic) {
        mWriteCharacteristic.setValue("BBTM=" + mBlueKey);
        mCurrState = ConstantContainer.ALTER_KEY;
        Log.d("BluetoothActivity", "gatt.writeCharacteristic(characteristic) alterNewKey:" + gatt.writeCharacteristic(characteristic));
    }

    private void writeDefaultKey(BluetoothGatt gatt, BluetoothGattCharacteristic mWriteCharacteristic) {
        mCurrState = ConstantContainer.VERIFY_DEFAULT_KEY;
        mWriteCharacteristic.setValue(ConstantContainer.DEFAULT_KEY);
        Log.d("BluetoothActivity", "gatt.writeCharacteristic(mWriteCharacteristic) writeDefaultKey:" + gatt.writeCharacteristic(mWriteCharacteristic));
    }
    

这两个方法是我写入的部分，我把它们的返回值打印出来可发现，无论成功失败，返回的都是true。