android > WebView > 获取表单数据

先是 HTML

<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><script type="text/javascript" src="./jquery_1.4.min.js"></script><script language="javascript"><!--    $(document).ready(function(){       $.extend({getValue:function(inputName){var str = document.getElementById(inputName).value;window.myjs.runOnAndroidJavaScript(str);//调用android的函数}});    });//--></script></head><body style="padding-top:10px"><input type="number" name=""  id="time_1" ></body></html>

然后是.java

public class ContrlSetWater extends Activity{private ImageButton back;private WebView wb;private Handler h = new Handler();@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);setContentView(R.layout.contrl_set_water);back = (ImageButton)findViewById(R.id.back);wb = (WebView)findViewById(R.id.wb);    //webviewwb.setBackgroundColor(Color.parseColor("#1A1A1A"));wb.getSettings().setJavaScriptEnabled(true);  wb.setHorizontalScrollBarEnabled(false);//水平不显示   wb.setVerticalScrollBarEnabled(false); //垂直不显示wb.loadUrl("file:///android_asset/set_water.html"); wb.setInitialScale(95);//800wb.getSettings().setSupportZoom( true ); //Modify thiswb.getSettings().setDefaultZoom(WebSettings.ZoomDensity.FAR);//Add thiswb.addJavascriptInterface(new runJavaScript(), "myjs");////----自己定义的myjs 在 HTML 中使用//\\back.setOnClickListener(new View.OnClickListener() {public void onClick(View v) {// TODO Auto-generated method stubwb.loadUrl("javascript:$.getValue('time_1')"); }}); //\\    }final class runJavaScript{//这个Java 对象是绑定在另一个线程里的，public void runOnAndroidJavaScript(final String str){h.post(new Runnable(){public void run() {//这里应该特别注意的 Toast.makeText(ContrlSetWater.this, "out:"+str, Toast.LENGTH_LONG).show();}    });      }  }}

解决缓存问题 ,在最开始使用以下代码

wb.clearCache(true);

wb.clearHistory();

wb.clearView();

wb.loadDataWithBaseURL(null, "","text/html", "utf-8",null);

wb.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);//不使用缓存

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