jsh_erp_app/common/utils/app-update.js

export function downloadApkWithJsonPost(apiUrl, requestData) {
  fetch(apiUrl, {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
    },
    body: JSON.stringify(requestData),
  })
    .then((response) => {
      if (!response.ok) throw new Error("下载失败");
      return response.blob(); // 获取二进制 APK 文件
    })
    .then((blob) => {
      saveBlobToFile(blob); // 保存到本地
    })
    .catch((err) => {
      plus.nativeUI.alert("更新失败：" + err.message);
    });
}

function saveBlobToFile(blob) {
  const apkPath = "_doc/update/app.apk";

  plus.io.resolveLocalFileSystemURL("_doc/", function (dirEntry) {
    dirEntry.getDirectory("update", { create: true }, function (updateDir) {
      updateDir.getFile("app.apk", { create: true }, function (fileEntry) {
        fileEntry.createWriter(function (writer) {
          writer.onwrite = function () {
            console.log("文件保存成功");
            installApk(fileEntry.toLocalURL());
          };
          writer.onerror = function (e) {
            plus.nativeUI.alert("保存文件失败：" + e.message);
          };
          writer.write(blob);
        });
      });
    });
  });
}

function installApk(filepath) {
  plus.runtime.install(
    filepath,
    {
      force: true,
    },
    function () {
      plus.nativeUI.alert("更新完成，应用即将重启", function () {
        plus.runtime.restart();
      });
    },
    function (e) {
      plus.nativeUI.alert("安装失败：" + JSON.stringify(e));
    }
  );
}