uni-app 蓝牙打印机封装安卓和ios的sdk插件供调用使用

针对你提到的需求，下面是一个简化的uni-app蓝牙打印机SDK插件封装示例，该示例展示了如何在安卓和iOS平台上分别进行蓝牙打印功能的封装，并通过JavaScript接口供uni-app调用。由于篇幅限制，这里只展示核心代码框架，具体实现细节（如错误处理、连接管理等）需要根据实际情况补充。

1. 插件目录结构

uni-app-bluetooth-printer/
├── android/
│   └── src/
│       └── main/
│           └── java/
│               └── com/
│                   └── yourcompany/
│                       └── bluetoothprinter/
│                           ├── BluetoothPrinterModule.java
│                           └── BluetoothPrinterService.java
├── ios/
│   └── Classes/
│       └── BluetoothPrinterModule.m
├── manifest.json
└── plugin.js

2. Android端实现（BluetoothPrinterModule.java）

package com.yourcompany.bluetoothprinter;

import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.os.Handler;
import android.os.Looper;
import com.taobao.weex.bridge.JSCallback;
import com.taobao.weex.common.WXModule;

import java.io.OutputStream;
import java.util.Set;
import java.util.UUID;

public class BluetoothPrinterModule extends WXModule {
    private BluetoothAdapter bluetoothAdapter;
    private BluetoothSocket socket;

    @JSMethod(uiThread = false)
    public void scanDevices(JSCallback callback) {
        bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
        Set<BluetoothDevice> devices = bluetoothAdapter.getBondedDevices();
        // Convert devices to JSON and call callback
    }

    @JSMethod(uiThread = false)
    public void connectDevice(String address, JSCallback callback) {
        try {
            BluetoothDevice device = bluetoothAdapter.getRemoteDevice(address);
            socket = device.createRfcommSocketToServiceRecord(UUID.randomUUID());
            socket.connect();
            OutputStream outStream = socket.getOutputStream();
            // Send data to printer
            outStream.write("Hello, Printer!".getBytes());
            outStream.flush();
            socket.close();
            callback.invoke("Connected and printed");
        } catch (Exception e) {
            callback.invoke(e.getMessage());
        }
    }
}

3. iOS端实现（BluetoothPrinterModule.m）

#import <Foundation/Foundation.h>
#import <WeexSDK/WeexSDK.h>
#import <CoreBluetooth/CoreBluetooth.h>

@interface BluetoothPrinterModule : NSObject <WXModule, CBCentralManagerDelegate, CBPeripheralDelegate>

@end

@implementation BluetoothPrinterModule

- (void)scanDevices:(NSDictionary *)options callback:(WXInvokeCallback)callback {
    CBCentralManager *manager = [[CBCentralManager alloc] initWithDelegate:self queue:nil];
    // Scan and discover devices
}

- (void)connectDevice:(NSString *)address callback:(WXInvokeCallback)callback {
    // Connect to peripheral and send data
}

#pragma mark - CBCentralManagerDelegate
- (void)centralManagerDidUpdateState:(CBCentralManager *)central {
    // Handle state updates
}

#pragma mark - CBPeripheralDelegate
- (void)peripheral:(CBPeripheral *)peripheral didDiscoverServices:(NSError *)error {
    // Discover services and characteristics
}

@end

4. plugin.js

module.exports = {
    platform: 'all',
    name: 'BluetoothPrinter',
    methods: {
        scanDevices: { js: 'scanDevices' },
        connectDevice: { js: 'connectDevice' }
    }
};

5. manifest.json

确保在manifest.json中正确注册插件。

此示例展示了如何在Android和iOS平台上封装蓝牙打印功能，并通过JavaScript接口暴露给uni-app调用。实际项目中，你需要根据具体的蓝牙打印机协议和API调整实现细节。