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我正在开发一个对所有 webView 使用相同活动的应用程序,因为唯一需要更改的是它正在加载的 url。我有一个加载对话框弹出,否则它只是白页。问题是,除了我从主活动启动网页活动时,加载对话框适用于每个实例。这是主要活动的启动代码。不同的按钮会改变意图。

编辑:不起作用,我的意思是它加载了网页,但没有弹出对话框,它只是坐在白屏上,就好像我根本没有 shouldOverrideUrlLoading 一样。它甚至不打印我放在那里的调试。它肯定在使用我的新 webClient,因为它没有默认的任何功能。所以基本上, shouldOverrideUrlLoading 没有被调用(但 onPageFinished 是)

编辑 2:我忘了,logcat 也从标签 webViewGlue 输出 nativeDestroy View

    Intent i = null;
    // check which button was pressed, and then create the new intent
    if (v == btnParticipants) {
        i = new Intent(this, DetailedList.class);
        i.putExtra("choice", Constants.SPONSOR_PAGE);
    } else if (v == btnDirectionMap) {
        i = new Intent(this, DirectionMapActivity.class);
    } else if (v == btnEventMap) {
        i = new Intent(this, EventMapActivity.class);
    } else if (v == btnSchedule) {
        i = new Intent(this, DetailedList.class);
        i.putExtra("choice", Constants.ATTRACTION_PAGE);
    } else if (v == btnSavedSchedule) {
        i = new Intent(this, DetailedList.class);
        i.putExtra("choice", Constants.MY_ATTRACTIONS);
    } else if (v == btnRegistration) {
        i = new Intent(this, Webpage.class);
        i.putExtra("url", RetrievalEngine.getInstance().mainEvent.eventWebsite);
    } else if (v == btnQR) {

    } else if (v == btnFacebook) {

    } else if (v == btnTwitter) {
        i = new Intent(this, TwitterActivity.class);
    } else if (v == btnWebsite) {

    } else if (v == btnAbout) {
        i = new Intent(this, AboutScreen.class);
    }

    // if a new intent was created, start it
    if (i != null) {
        startActivity(i);
    }

该代码不起作用,但这个代码起作用,它来自一个关于页面,其中 v 是一个视图(在这种情况下是按钮):

    if (v == btnWebsite){
        Intent i = new Intent(this, Webpage.class);
        i.putExtra("url", url);
        startActivity(i);
    }

两者都在做完全相同的事情,所以我不知道为什么它不起作用。

另外,这是网页活动:

WebView webView;
static ProgressDialog mProgressDialog;

@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
    this.finish();
    return super.onKeyUp(keyCode, event);
}

public void onFinish(){
    webView.destroy();
}

@SuppressLint("SetJavaScriptEnabled")
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.web);
    mProgressDialog = new ProgressDialog(this);
    webView = (WebView) findViewById(R.id.webView);
    Button backBtn = (Button) findViewById(R.id.backButton);
    final TextView lbl = (TextView)findViewById(R.id.webPageDesc);
    lbl.setText("Loading...");
    backBtn.setText("Back");
    backBtn.setOnClickListener(new OnClickListener(){

        public void onClick(View viewArg) {
            WebView view = (WebView) findViewById(R.id.webView);
            if (view.canGoBack()) {
                view.goBack();
            }
        }
    });

    webView.getSettings().setBuiltInZoomControls(true);
    webView.getSettings().setJavaScriptEnabled(true);
    webView.setWebViewClient(new WebViewClient() {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            lbl.setText("Loading...");

            mProgressDialog.setTitle("Loading");
            try{
                mProgressDialog.show();
            }catch(Exception e){}
            mProgressDialog.setMessage("Loading " + url);
            return false;
        }

        @Override
        public void onPageFinished(WebView view, String url) {
            mProgressDialog.dismiss();
            if(view.getTitle().length() > 33){
                lbl.setText(view.getTitle().substring(0, 30) + "...");
            }else{
                lbl.setText(view.getTitle());
            }
            view.setVisibility(View.VISIBLE);
            super.onPageFinished(view, url);
        }
    });

    Bundle extras = getIntent().getExtras();
    if (extras != null) {
        String url = extras.getString("url");
        webView.loadUrl(url);
    }
}
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1 回答 1

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我将代码从 shouldOverrideUrlLoading 移到 onPageStarted,它正在工作。

于 2013-06-25T15:09:32.570 回答