JS need same thread

app/src/main/java/com/github/catvod/spider/JSDemo.java

@@ -3,23 +3,52 @@ package com.github.catvod.spider;
 import android.content.Context;
 
 import com.github.catvod.crawler.Spider;
-import com.github.catvod.crawler.SpiderDebug;
+import com.whl.quickjs.android.QuickJSLoader;
 import com.whl.quickjs.wrapper.QuickJSContext;
 
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+
 public class JSDemo extends Spider {
 
+    private ExecutorService executor;
     private QuickJSContext ctx;
 
+    private void submit(Runnable runnable) {
+        executor.submit(runnable);
+    }
+
+    private <T> Future<T> submit(Callable<T> callable) {
+        return executor.submit(callable);
+    }
+
+    private void initJS() {
+        if (ctx != null) return;
+        ctx = QuickJSContext.create();
+        QuickJSLoader.initConsoleLog(ctx);
+    }
+
     @Override
     public void init(Context context, String extend) {
-        ctx = QuickJSContext.create();
-        ctx.evaluate("var text = 'Hello QuickJS';");
-        String text = ctx.getGlobalObject().getString("text");
-        SpiderDebug.log(text);
+        this.executor = Executors.newSingleThreadExecutor();
+        submit(this::initJS);
+    }
+
+    @Override
+    public String homeContent(boolean filter) throws Exception {
+        return submit(() -> {
+            ctx.evaluate("var text = 'homeContent';");
+            return ctx.getGlobalObject().getString("text");
+        }).get();
     }
 
     @Override
     public void destroy() {
-        ctx.destroy();
+        submit(() -> {
+            executor.shutdownNow();
+            ctx.destroy();
+        });
     }
 }