android webview 执行 js

楼主在 js 注入时候遇到问题,android webview 跳到了空白页面 webview = (WebView) findViewById(R.id.webview); webview.clearCache(true); webview.clearHistory(); webview.getSettings().setJavaScriptEnabled(true); webview.setWebViewClient(new WebViewClient() {

        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            view.loadUrl(url);
            return true;
        }

        @Override
        public void onPageFinished(WebView view, String url) {
            super.onPageFinished(view, url);

            webview.loadUrl("javascript:document.getElementsByName('login_id')[0].value='qqq'");
        }
    });

    webview.setWebChromeClient(new WebChromeClient() {
        public void onProgressChanged(WebView view, int progress) {
            super.onProgressChanged(view, progress);
        }
    });
    webview.getSettings().setJavaScriptCanOpenWindowsAutomatically(false);
    webview.loadUrl("https://ticket-account.pia.jp/pia/digipoke/list.do");