微信小程序编译

Assets/12.WeixinMinigame/Runtime/wechat-default/workers/response.meta

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Assets/12.WeixinMinigame/Runtime/wechat-default/workers/response/index.js

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+// 消息类型
+const messageType = {
+    config: 0,
+    writeFile: 1, // 写文件
+};
+// @ts-ignore SDK实际有暴露这几个API，但是协议里没有
+const { createSharedArrayBuffer, getFileSystemManager } = worker;
+const fs = getFileSystemManager ? getFileSystemManager() : null;
+function compareVersion(_v1, _v2) {
+    return (_v1
+        .split('.')
+        .map(v => v.padStart(2, '0'))
+        .join('')
+        >= _v2
+            .split('.')
+            .map(v => v.padStart(2, '0'))
+            .join(''));
+}
+worker.onMessage((res) => {
+    const { type, payload } = res;
+    if (type === messageType.writeFile) {
+        const { filePath, data, isSharedBuffer } = payload;
+        let content = data;
+        if (isSharedBuffer) {
+            content = data.buffer;
+        }
+        if (!fs) {
+            console.error('getFileSystemManager不存在');
+            return;
+        }
+        fs.writeFile({
+            filePath,
+            data: content,
+            success: () => {
+                worker.postMessage({
+                    type: messageType.writeFile,
+                    payload: {
+                        isok: true,
+                        filePath,
+                    },
+                });
+            },
+            fail: (err) => {
+                worker.postMessage({
+                    type: messageType.writeFile,
+                    payload: {
+                        isok: false,
+                        filePath,
+                        err,
+                    },
+                });
+            },
+        });
+    }
+    if (type === messageType.config) {
+        const { systemInfo } = payload;
+        const { platform, version } = systemInfo;
+        // 安卓才需要使用worker写文件
+        const isAndroid = platform.toLocaleLowerCase() === 'android';
+        // 8.0.18以下版本出现写文件报错
+        const isClientValid = compareVersion(version, '8.0.18');
+        worker.postMessage({
+            type: messageType.config,
+            payload: {
+                supportWorkerFs: isAndroid && !!fs && isClientValid,
+                supportSharedBuffer: isAndroid && !!createSharedArrayBuffer,
+            },
+        });
+    }
+});

Assets/12.WeixinMinigame/Runtime/wechat-default/workers/response/index.js.meta

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