用模拟器WebView跳转1000累次网页后，模拟器不再能浏览网页

private void visitPages() throws Exception {        webSettings.setBlockNetworkImage(true);        webSettings.setJavaScriptEnabled(false);        new Thread(new Runnable() {            @Override            public void run() {                for (int i = 0; i < fanList.size(); i++) {                    webView.loadUrl(str + fanList.get(i).getUid());                    Log.i("count", String.valueOf(i));                    try {                        if (i == 0) {                            Thread.sleep(15000);                        } else {                            Thread.sleep(5000);                        }                    } catch (InterruptedException e) {                        e.printStackTrace();                    }                }            }        }).start();    }