在社交与信息传播需求日益增长的当下,“碰一碰发视频” 以其便捷直观的分享方式备受关注。本文将深入探讨该功能的源码搭建过程,涵盖从技术选型到代码实现的全流程,为开发者提供可落地的技术方案。
“碰一碰发视频” 需实现以下核心功能:
npm install express mongoose
在 AndroidManifest.xml 中添加 NFC 权限:
在 Activity 中处理 NFC 事件:
import android.nfc.NdefMessage;
import android.nfc.NdefRecord;
import android.nfc.NfcAdapter;
import android.nfc.tech.Ndef;
import android.os.Bundle;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
private NfcAdapter nfcAdapter;
private TextView statusText;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
statusText = findViewById(R.id.status_text);
nfcAdapter = NfcAdapter.getDefaultAdapter(this);
if (nfcAdapter == null) {
statusText.setText("设备不支持NFC");
}
}
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
if (NfcAdapter.ACTION_NDEF_DISCOVERED.equals(intent.getAction())) {
try {
NdefMessage ndefMessage = Ndef.get(intent).getNdefMessage();
NdefRecord[] records = ndefMessage.getRecords();
for (NdefRecord record : records) {
if (record.getTnf() == NdefRecord.TNF_MIME_MEDIA) {
String mimeType = new String(record.getType(), "UTF-8");
if ("application/vnd.example.nfc".equals(mimeType)) {
// 解析NFC数据,启动蓝牙配对流程
startBluetoothPairing();
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
private void startBluetoothPairing() {
// 蓝牙配对逻辑,此处省略具体实现
statusText.setText("正在进行蓝牙配对...");
}
}
在前端页面中,使用标签实现视频选择功能:
function sendVideo() {
const videoInput = document.getElementById('videoInput');
const videoFile = videoInput.files[0];
if (videoFile) {
// 通过WebSocket或HTTP将视频数据发送至后端
const formData = new FormData();
formData.append('video', videoFile);
fetch('/send-video', {
method: 'POST',
body: formData
})
.then(response => response.json())
.then(data => {
console.log(data);
});
}
}
后端(Node.js + Express)接收并处理视频数据:
const express = require('express');
const app = express();
const multer = require('multer');
const storage = multer.memoryStorage();
const upload = multer({ storage });
app.post('/send-video', upload.single('video'), (req, res) => {
const videoBuffer = req.file.buffer;
// 对视频数据进行处理,如存储、转发至接收端设备
res.json({ message: '视频接收成功' });
});
app.listen(3000, () => {
console.log('Server running on port 3000');
});
在 iOS 中使用 Multipeer Connectivity 框架实现蓝牙传输:
import UIKit
import MultipeerConnectivity
class ViewController: UIViewController, MCSessionDelegate, MCAdvertiserAssistantDelegate {
var peerID: MCPeerID!
var session: MCSession!
var advertiserAssistant: MCAdvertiserAssistant!
override func viewDidLoad() {
super.viewDidLoad()
peerID = MCPeerID(displayName: UIDevice.current.name)
session = MCSession(peer: peerID, securityIdentity: nil, encryptionPreference:.required)
session.delegate = self
advertiserAssistant = MCAdvertiserAssistant(serviceType: "video-share", discoveryInfo: nil, session: session)
advertiserAssistant.start()
}
func session(_ session: MCSession, didReceive stream: InputStream, withName streamName: String, fromPeer peerID: MCPeerID) {
// 接收视频数据流,进行处理
}
func session(_ session: MCSession, didFinishReceivingResourceWithName resourceName: String, fromPeer peerID: MCPeerID, at localURL: URL, withError error: Error?) {
// 资源接收完成处理
}
func session(_ session: MCSession, didReceive data: Data, fromPeer peerID: MCPeerID) {
// 接收数据处理
}
func session(_ session: MCSession, peer peerID: MCPeerID, didChange state: MCSessionState) {
// 设备连接状态变化处理
}
}
将后端服务部署至云服务器,配置域名与 SSL 证书;在应用商店提交移动端应用,完成碰一碰发视频系统的上线。
通过以上步骤,我们完成了碰一碰发视频功能的源码搭建。开发者可根据实际需求,进一步拓展功能,如添加加密传输、传输进度显示等,打造更完善的视频分享体验。