diff --git a/index.html b/index.html
index ae4faac..9003ece 100644
--- a/index.html
+++ b/index.html
@@ -21,15 +21,33 @@
})
}
+ var deferredPrompt = null;
+
+ // 判断用户是否安装此应用：beforeinstallprompt
+ window.addEventListener("beforeinstallprompt", e => {
+ e.preventDefault();
+ deferredPrompt = e;
+ console.log('beforeinstallprompt');
+ });
+
+ window.addEventListener("appinstalled", () => {
+ deferredPrompt = null;
+ console.log('appinstalled');
+ });
+
+ function addToDesktop() {
+ console.log('addToDesktop');
+ deferredPrompt.prompt();
+ deferredPrompt = null;
+ }
-
-
+