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expo-ble模块测试demo 联调BLE模块, 文件发送通过校验，去除多余的ANI文件缓存步骤

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Yudi Xiao
2025-12-11 18:33:28 +08:00
parent eab4d172e6
commit e3ee0f607c
7 changed files with 82 additions and 82 deletions
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32
ble/services/FileTransferService.ts
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@@ -16,22 +16,28 @@ export class FileTransferService {
return FileTransferService.instance;
}
public async transferFile(deviceId: string, filePath: string, type: APP_COMMAND_TYPES, onProgress?: (progress: number) => void): Promise<void> {
public async transferFile(deviceId: string, file: string | ArrayBuffer, type: APP_COMMAND_TYPES, onProgress?: (progress: number) => void): Promise<void> {
try {
const response = await fetch(filePath);
if (!response.ok) {
throw new Error(`Failed to load file: ${response.statusText}`);
const startAt = Date.now();
let arrayBuffer: ArrayBuffer;
if (file instanceof ArrayBuffer) {
arrayBuffer = file
} else {
const response = await fetch(file);
if (!response.ok) {
throw new Error(`Failed to load file: ${response.statusText}`);
}
const blob = await response.blob();
const reader = new FileReader();
arrayBuffer = await new Promise<ArrayBuffer>((resolve, reject) => {
reader.onload = () => resolve(reader.result as ArrayBuffer);
reader.onerror = reject;
reader.readAsArrayBuffer(blob);
});
}
const blob = await response.blob();
const reader = new FileReader();
const arrayBuffer = await new Promise<ArrayBuffer>((resolve, reject) => {
reader.onload = () => resolve(reader.result as ArrayBuffer);
reader.onerror = reject;
reader.readAsArrayBuffer(blob);
});
await this.protocol.send(deviceId, type, arrayBuffer, onProgress);
const transferredAt = Date.now();
console.debug(`File transferred in ${(transferredAt - startAt) / 1000} s`);
} catch (e) {
console.error("File transfer failed", e);
throw e;