初始化

2024-12-06 16:18:22 +08:00
commit 884dd70d83
751 changed files with 60883 additions and 0 deletions
@@ -0,0 +1,122 @@
+const formatTime = (date) => {
+    const year = date.getFullYear();
+    const month = date.getMonth() + 1;
+    const day = date.getDate();
+    const hour = date.getHours();
+    const minute = date.getMinutes();
+    const second = date.getSeconds();
+
+    return `${[year, month, day].map(formatNumber).join("/")} ${[
+    hour,
+    minute,
+    second,
+  ]
+    .map(formatNumber)
+    .join(":")}`;
+};
+
+const formatNumber = (n) => {
+    n = n.toString()
+    return n[1] ? n : `0${n}`
+};
+
+const isDownloadFileSuccess = async (filePath) => {
+    return new Promise((resolve, reject) => {
+        wx.downloadFile({
+            url: filePath,
+            success(res) {
+                if (res.statusCode === 200) {
+                    resolve(true);
+                } else {
+                    resolve(false);
+                }
+            },
+            fail() {
+                resolve(false);
+            },
+        });
+    });
+};
+
+const compareVersion = (v1, v2) => {
+    v1 = v1.split(".");
+    v2 = v2.split(".");
+    const len = Math.max(v1.length, v2.length);
+    while (v1.length < len) {
+        v1.push("0");
+    }
+    while (v2.length < len) {
+        v2.push("0");
+    }
+    for (let i = 0; i < len; i++) {
+        const num1 = parseInt(v1[i], 10);
+        const num2 = parseInt(v2[i], 10);
+
+        if (num1 > num2) {
+            return 1;
+        } else if (num1 < num2) {
+            return -1;
+        }
+    }
+
+    return 0;
+};
+
+/**
+ * canvas能否正常渲染图片
+ * @param {string} url 图片URL
+ * @param {string} canvasId 
+ * @param {*} thisArg 页面实例
+ * @returns 
+ */
+const isCreateImageSuccess = (url, canvasId, thisArg) => {
+    return new Promise((resolve, reject) => {
+        const {
+            SDKVersion
+        } = wx.getSystemInfoSync();
+        const use2dCanvas = compareVersion(SDKVersion, "2.9.2") >= 0;
+        if (use2dCanvas) {
+            const query = thisArg.createSelectorQuery();
+            query
+                .select(`#${canvasId}`)
+                .fields({
+                    node: true,
+                    size: true
+                })
+                .exec((res) => {
+                    console.log({
+                        res
+                    });
+                    const canvas = res[0].node;
+                    const ctx = canvas.getContext("2d");
+                    canvas.width = res[0].width;
+                    canvas.height = res[0].height;
+
+                    const Image = canvas.createImage();
+                    Image.onload = () => {
+                        ctx.drawImage(Image, 0, 0, res[0].width, res[0].height);
+                        ctx.restore();
+                        resolve(true);
+                    };
+                    Image.onerror = (e) => {
+                        console.log(e);
+                        resolve(false);
+                    };
+                    Image.src = url;
+                });
+        } else {
+            wx.showToast({
+                title: '您的微信SDK版本低，不支持该功能',
+                icon: 'none', //icon
+                duration: 1500 //停留时间
+            })
+        }
+    });
+};
+
+module.exports = {
+    isDownloadFileSuccess,
+    compareVersion,
+    isCreateImageSuccess,
+    formatTime,
+};