app/src/main/java/com/naz/sdkdemo/MainActivity.java

@@ -1154,12 +1154,17 @@ public class MainActivity extends BaseActivity {
                 @Override
                 public void openCallBack(int code) {
                     Log.e("--------->","------->openCallBack code="+code);
-                    mWebView.loadUrl("javascript:responseLightCode('"+code+"')");
-                    if (code == 1){
-
-                    }else {
-                        Toast.makeText(MainActivity.this, "串口未打开", Toast.LENGTH_SHORT).show();
-                    }
+                    runOnUiThread(new Runnable() {
+                        @Override
+                        public void run() {
+                            mWebView.loadUrl("javascript:responseLightCode('"+code+"')");
+                            if (code == 1){
+
+                            }else {
+                                Toast.makeText(MainActivity.this, "串口未打开", Toast.LENGTH_SHORT).show();
+                            }
+                        }
+                    });
                 }
 
                 @Override