下面的代码似乎在我的旧HTC运行2.3上运行sorta ok（杀死应用程序然后再次尝试使其工作）然而，运行最新Android的Xperia Z卡在“尝试获取评论”上。
它所依据的代码部分是 InjectJavaScript（），其中 LoadUrl （我知道这是因为 onPageFinished 永远不会被调用）。奇怪的是统计部分代码工作正常且相同。
对不起它的代码很乱......
@SuppressLint("SetJavaScriptEnabled")
public class MyIceland extends SherlockActivity {
private static class FetchMyIceland extends AsyncTask<Void, Void, Void>{
@Override
protected Void doInBackground(Void... arg0) {
setDialog("Checking Farera for WoW Data....",2);
switch(FETCHFROMMYICELAND){
case 0: //contact Farera for information.
Log.i("IcePlan","Farera Check/Empathica Front Page Retrieval...");
MyIceland.url = MainActivity.BASE_URL+"android_get.php?action=myiceland&store="+MainActivity.STORE;
try {
String Result = HTTPGET();
if(Result.startsWith("no")){ //content for today?
setDialog("No WoW Data Available for Today\nAbout to contact Empathica.com....",2);
activity.runOnUiThread(new Runnable(){@Override public void run() {MyIceland.FetchFromEmpathica("http://www.iceland.empathica.com/LogonIceland.aspx");;}}); }
else{FETCHFROMMYICELAND = 100;} //we do have content...
} catch (IOException e1) {Log.i("IcePlan",e1.toString());} catch (Exception e1) {Log.i("IcePlan",e1.toString());
} //we have data for today, so download and sort it.
break;
case 1: //get comments
setDialog("About to Contact Empathica.com for Comments....",2);
try {Thread.sleep(1000);} catch (InterruptedException e) {Log.i("IcePlan",e.toString());}
activity.runOnUiThread(new Runnable(){@Override public void run() {MyIceland.FetchFromEmpathica("http://v2.empathica.com/Reporting1/ClientReporting/LiveDataReporting.aspx?RID=1&PID=Comments&TID=1a");}});
break;
case 2: //POST data
setDialog("Posting all data to Farera.com \n So we don't have to do this again today....",2);
List<NameValuePair> params = new ArrayList<NameValuePair>();
try {params.add(new BasicNameValuePair("frontpage", URLEncoder.encode(FRONTPAGE, "utf-8")));} catch (UnsupportedEncodingException e) {Log.e("IcePlan",e.toString());}
try {params.add(new BasicNameValuePair("comments", URLEncoder.encode(COMMENTS, "utf-8")));} catch (UnsupportedEncodingException e) {Log.e("IcePlan",e.toString());}
MyIceland.url = MainActivity.BASE_URL+"android_get.php?action=store_myiceland&store="+MainActivity.STORE;
String POST = HTTPPOST(params);
if(POST != null){FETCHFROMMYICELAND = 100; }
break;
}
return null;
}
@Override
protected void onPreExecute(){super.onPreExecute();}
@Override
protected void onPostExecute(Void arg0){
if(FETCHFROMMYICELAND == 100) new MyIceland.DisplayMyIceland().execute();
}
}
//------------------------------------------------------
//-----------------------------------------------------
//-----------------------------------------------------
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my_iceland);
ctx = getApplicationContext();
activity = this;
//webView2 = (WebView) findViewById(R.id.myIwebview2_widget);
/********************************************************/
/****************** ABS ********************************/
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().show();
// This is a workaround for http://b.android.com/15340 from
// http://stackoverflow.com/a/5852198/132047
BitmapDrawable bg = (BitmapDrawable) getResources().getDrawable(
R.drawable.bg_striped);
bg.setTileModeXY(TileMode.REPEAT, TileMode.REPEAT);
getSupportActionBar().setBackgroundDrawable(bg);
BitmapDrawable bgSplit = (BitmapDrawable) getResources().getDrawable(
R.drawable.bg_striped);
bgSplit.setTileModeXY(TileMode.REPEAT, TileMode.REPEAT);
getSupportActionBar().setSplitBackgroundDrawable(bgSplit);
/************************************************************/
try {
ov_e = (TextView) findViewById(R.id.overall_exp_tx);
ov_r= (TextView) findViewById(R.id.overall_rank_tx);
s_e= (TextView) findViewById(R.id.storeexp_tx);
st_e= (TextView) findViewById(R.id.staffexp_tx);
t_e= (TextView) findViewById(R.id.tillexp_tx);
res= (TextView) findViewById(R.id.responses_tx);
res_r= (TextView) findViewById(R.id.resp_rank_tx);
MyIceland.list = (ListView) findViewById(R.id.wow_lv); // set list
MyIceland.adapter = new SeparatedListAdapter(ctx, false); // initialise adapter
//authenticate
CookieSyncManager.createInstance(this);
SetUp(); //Set up webView
setDialog("Loading MyIceland data...\n Please be Patient...",0);
new FetchMyIceland().execute(); //get data
} catch (Exception e) {
// TODO Auto-generated catch block
Log.i("IcePlan",e.toString());
}
}
private static String HTTPPOST(List<NameValuePair> params){
String Resp = null;
try {
HttpClient client = new DefaultHttpClient();
String postURL = MyIceland.url;
HttpPost post = new HttpPost(postURL);
//List<NameValuePair> params = new ArrayList<NameValuePair>();
//params.add(new BasicNameValuePair("user", "kris"));
UrlEncodedFormEntity ent = new UrlEncodedFormEntity(params,HTTP.UTF_8);
post.setEntity(ent);
HttpResponse responsePOST = client.execute(post);
HttpEntity resEntity = responsePOST.getEntity();
if (resEntity != null) {
Resp = "not null";
}
} catch (Exception e) {
Log.e("IcePlan HTTPPOST",e.toString());
}
return Resp;
}
private static String HTTPGET() throws Exception, IOException{
HttpClient client = new DefaultHttpClient();
HttpGet request = new HttpGet(url);
HttpResponse response = client.execute(request);
InputStream in = response.getEntity().getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
StringBuilder str = new StringBuilder();
String line = null;
while((line = reader.readLine()) != null)
{
str.append(line);
}
in.close();
Log.i("IcePlan",str.toString());
return str.toString();
}
private void SetUp(){
webView = (WebView) findViewById(R.id.myIwebview_widget); //load custom webview
webView.clearView(); //clear view of browser
webView.clearFormData(); //clear form data
webView.setNetworkAvailable(MainActivity.isOnline(ctx)); //set network state
webView.getSettings().setDomStorageEnabled(true);
webView.getSettings().setPluginsEnabled(false); //no flash
webView.getSettings().setJavaScriptEnabled(true); // enable javascript
webView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
webView.addJavascriptInterface(new MyJavaScriptInterface(), "HTMLOUT");
webView.getSettings().setSavePassword(false); //don't show password dialog
webView.setVerticalScrollBarEnabled(false); //no scrolling!
webView.setHorizontalScrollBarEnabled(false); //no scrolling!
webView.getSettings().setLoadsImagesAutomatically(false); // NO Images
webView.getSettings().setSaveFormData(false); //Don't save form data
//webView.setVisibility(View.VISIBLE);
return;
}
private static void FetchFromEmpathica(String EmpathURL){
/*****************************************************
* setWebViewClient to load pages
*****************************************************
*****************************************************
*/
webView.loadUrl(EmpathURL);
MyIceland.page = 0;
webView.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
//Log.i("IcePlan",url);
view.loadUrl(url);
return true;
}
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
Log.i("IcePlan","Starting...");
super.onPageStarted(view, url, favicon);
}
@Override
public void onPageFinished(WebView view, String url) {
Log.i("IcePlan","Loaded...");
switch(FETCHFROMMYICELAND){
case 0:
if(MyIceland.page == 0){
MyIceland.page=1;
try {Thread.sleep(500);}catch (InterruptedException e) {Log.e("IcePlan",e.toString());}
view.loadUrl("javascript: {" +
"document.forms[0].elements['userNameBox'].value = 'xxx.xxxxx';" +
"setTimeout(function(){document.forms[0].elements['passwordBox'].value = 'xxxxxxx';},300);" +
"setTimeout(function(){document.forms[0].elements['loginButton'].click();},300); };");
}else if(MyIceland.page == 1){
MyIceland.page=2;
try {Thread.sleep(1000);}catch (InterruptedException e) {Log.e("IcePlan",e.toString());}
String oAuthUrl=("v2.empathica.com");
if(url.indexOf(oAuthUrl) > -1)
{
Log.i("Contains","Auth URL");
InjectJavaScript(view);
}else{view.loadUrl("javascript:{};");}
}else if (MyIceland.page ==2){
if(MyIceland.FRONTPAGE == null){
Log.i("IcePlan","Inject");
InjectJavaScript(view);
}else{MyIceland.page=3;}
}
break;
case 1:
if(MyIceland.COMMENTS == null){
Log.i("IcePlan","Inject Comments");
InjectJavaScript(view);
}else{MyIceland.page=100;} //else end
break;
}
super.onPageFinished(view, url);
}
});
return;
}
}
private static void setDialog(final String msg, final int dothis){
activity.runOnUiThread(new Runnable() {
@Override
public void run() {
switch(dothis){
case 0: //set up and show
if (dlg == null) {
dlg = new ProgressDialog(activity);
dlg.setTitle("Loading...");
dlg.setMessage(msg);
dlg.setCancelable(activity.isFinishing());
dlg.show();
}
break;
case 1: //remove and reset to null
if (dlg.isShowing() || dlg!=null) {
dlg.hide();
dlg = null;
}
break;
case 2:
if (dlg.isShowing() || dlg!=null) {
dlg.setMessage(msg);
}
}
}});
return;
}
/*********************************************************
* HACK - Inject Javascript to get the HTML we want!
*********************************************************/
private static void InjectJavaScript(WebView view){
switch(FETCHFROMMYICELAND){
case 0: //get front page
setDialog("Attempting to get Statistics...",2);
view.loadUrl("javascript:{" +
"var element = document.getElementById('ReportDivFPRank');"+
"if (typeof(element) != 'undefined' && element != null)"+
"{" +
"var e=document.getElementById(\"ReportDivFPCR\");"+
"var content=e.innerHTML;"+
"window.HTMLOUT.processHTML(content);"+// exists.
"}" +
"};");
break;
case 1: //get comments
setDialog("Attempting to get Comments....",2);
view.loadUrl("javascript:{" +
"var element = document.getElementById('AddNPSDetails');"+
"if (typeof(element) != 'undefined' && element != null)"+
"{" +
"var e=document.getElementById(\"_ctl1_ReportDiv\");"+
"var content=e.innerHTML;"+
"window.HTMLOUT.processHTML(content);"+// exists.
"}" +
"};");
break;
}
return;
}
/*********************************************************
* Class injected into Empathica website to get HTML
* Continues onto our controlling AsyncTask
* @author Vince
*
********************************************************/
public static class MyJavaScriptInterface
{
public void processHTML(final String html)
{
setDialog("Caught RAW data....",2);
if(html != ""){
//MyIceland.webView2.loadDataWithBaseURL("notreal/", html, "text/htm", "utf-8",null);
if(FETCHFROMMYICELAND == 0){ setDialog("Retrieved Area Statistics....",2); MyIceland.FRONTPAGE = html;}
else if(FETCHFROMMYICELAND == 1){ setDialog("Retrieved Area Comments....",2); MyIceland.COMMENTS = html;}
FETCHFROMMYICELAND++;
new MyIceland.FetchMyIceland().execute();
}
return;
}
}
}
答案 0 :(得分：0)
我看到在您加载第二页时将再次调用FetchFromEmpathica，然后再次将new WebViewClient()设置为webview，将其放在setup()方法上，以便它将被召唤一次。
确保您的Xperia是4.1.2，但仍然看看
中提到的内容Reference: JavascriptInterface methods in WebViews must now be annotated
从Android 4.2开始，您现在必须使用@JavascriptInterface显式注释公共方法，以便从托管JavaScript中访问它们。请注意，这仅在您将应用的minSdkVersion或targetSdkVersion设置为17或更高时才会生效。
添加它并import android.webkit.JavascriptInterface
因此代码将是最新版本的代码。
@JavascriptInterface
public void processHTML(final String html)
{
//code
}