diff --git a/app/src/main/java/com/github/catvod/spider/Init.java b/app/src/main/java/com/github/catvod/spider/Init.java
index e98af6cf..36223fa7 100644
--- a/app/src/main/java/com/github/catvod/spider/Init.java
+++ b/app/src/main/java/com/github/catvod/spider/Init.java
@@ -4,28 +4,37 @@ import android.app.Application;
 import android.content.Context;
 import android.os.Handler;
 import android.os.Looper;
+import android.widget.Toast;
 
 import com.github.catvod.crawler.SpiderDebug;
 
 public class Init {
 
-    private final Handler mHandler;
-    private Application mApp;
+    private final Handler handler;
+    private Application app;
 
     private static class Loader {
         static volatile Init INSTANCE = new Init();
     }
 
-    private static Init get() {
+    public static Init get() {
         return Loader.INSTANCE;
     }
 
     public Init() {
-        this.mHandler = new Handler(Looper.getMainLooper());
+        this.handler = new Handler(Looper.getMainLooper());
+    }
+
+    public static Application context() {
+        return get().app;
     }
 
     public static void init(Context context) {
         SpiderDebug.log("自定義爬蟲代碼載入成功！");
-        get().mApp = ((Application) context);
+        get().app = ((Application) context);
+    }
+
+    public static void show(String msg) {
+        get().handler.post(() -> Toast.makeText(context(), msg, Toast.LENGTH_SHORT).show());
     }
 }
diff --git a/jar/custom_spider.jar b/jar/custom_spider.jar
index 2acf8b39..f8ffecbf 100644
Binary files a/jar/custom_spider.jar and b/jar/custom_spider.jar differ
diff --git a/jar/custom_spider.jar.md5 b/jar/custom_spider.jar.md5
index f4896dad..2c6fb441 100644
--- a/jar/custom_spider.jar.md5
+++ b/jar/custom_spider.jar.md5
@@ -1 +1 @@
-02be344fd12b73ec6b396ecc73623457
+56a445f21c898cc95f53b87f1ff16c0f