在我的Android程序中,我有一个Webview,并需要动态地设置Webview元素(文本区域、复选框等)的值。我有一个JavaScript方法,它从程序接收值并执行字符串操作,并将值存储到正确的元素中。但我总是得到这个错误……有点卡住了。任何帮助都将不胜感激。
我成功地在w3schools的TryIt Editor中执行了脚本,但在程序中没有工作!
final WebView webView = new WebView(getApplicationContext());
LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT, 1);
webView.setLayoutParams(params);
webView.setBackgroundColor(Color.LTGRAY);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setDomStorageEnabled(true);
webView.setWebChromeClient(new android.webkit.WebChromeClient());
webView.setWebViewClient(new WebChromeClient());
webView.loadData("<!DOCTYPE html><html><body>"+ questionsArray[questionIndex] +"</body></html>", "text/html", "UTF-8");
webView.addJavascriptInterface(javaScriptInterface, "HtmlViewer");
scrolRootLayout.addView(surveyWebView);
我在webView中设置文本区域值的Javascript方法
function myFunction(var_)
{
var str = var_.replace("-!!!-","");
var pipeSplitedArray = str.split("||");
for(var i=0; i<pipeSplitedArray.length-1; i++) {
if(pipeSplitedArray[i].indexOf("-!@!-") == -1) {
var queArray = new Array();
queArray =pipeSplitedArray[i].split("-@!@-");
if(document.getElementsByName(queArray[0]))
document.getElementsByName(queArray[0]).item(0).innerHTML=queArray[1];
}
}
}
数值在onPageFinished加载时传递..
private class WebChromeClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
public void onPageFinished(WebView view, String url) {
String script = "javascript:function myFunction(var_) { var pipeSplitedArray = var_.split(\"\\|\\|\"); for(var i=0; i<pipeSplitedArray.length-1; i++) { if(pipeSplitedArray[i].indexOf(\"-!@!-\") == -1) { var queArray = new Array(); queArray =pipeSplitedArray[i].split(\"-@!@-\"); if(document.getElementsByName(queArray[0])) document.getElementsByName(queArray[0]).item(0).innerHTML=queArray[1]; } } }";
view.loadUrl(script);
view.loadUrl("javascript:window.HtmlViewer.injectIntoWebView(myFunction("+answerString+"));");
}
}
在webView中加载的HTML内容,即questionsArray [questionIndex]是:
<div class="newmain5 norma12" style="position:relative;width:320px;"> Enter your name :</div>
<div class="newmain6" style="position:relative;width:275px;left:10px;">
<textarea name="69_206" id="1" rows="5" cols="30" style="font-family:Arial, Helvetica, sans-serif; font-size:12px; color:#666666; width:260px; border:1px solid #CCCCCC; background-color:#EBEBEB;" />
</textarea>
</div>
在onPageFinished中传递的字符串:
69_206-@!@-MyName||
我一直在运行我的应用程序时遇到的错误是:
11-23 14:46:59.786: I/chromium(2763): [INFO:CONSOLE(1)] "Uncaught SyntaxError: Unexpected token ILLEGAL", source: (1)
我在w3schools Tryit编辑器中运行了该脚本并成功执行,但在Android应用程序中却从未执行过。我犯了什么错误吗?如果您能帮忙解决问题就太好了!谢谢。