Android A opens B back goes back to A twice, but crashes the third time

Question

Okay so my App has a Tabview with 3 tabs. Two of my tabs I have no issues with. The first just opens a webview, which works, the third shows a series of picture buttons which in turn open pages that have options, and it works fine.

My second is the issue. It has an Expandable List View with 4 parents and varying number of children per parent. I have the Expandable List View working, and each child opens a different page in a webview. This part is working just fine. The problem comes in once I open the page I can click the back button and it returns to the second tab which is what I want, then if I select another link it works fine and the back button takes me back. But if I open a third it crashes when I hit the back button.

case 1:
                        setContentView(R.layout.viewer);
                        content = new String(
                                "insert web page here");
                        showContent = new Intent(getApplicationContext(),
                                Viewer.class);
                        showContent.setData(Uri.parse(content));
                        replaceContentView("Called", showContent);
                        break;

That is one one of the pages. The replaceContentView method is as follows:

public void replaceContentView(String id, Intent newIntent) {
    // Obtain the view of 'Called' activity using its Intent 'newIntent'
    View view = getLocalActivityManager().startActivity(id,
            newIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))
            .getDecorView();
    // set the above view to the content of 'Calling' activity.
    this.setContentView(view);
}

And the Viewer class is as follows:

public class Viewer extends ActivityGroup {
WebView viewer;
final Context myApp = this;

public void onBackPressed() {

    if (viewer.isFocused() && viewer.canGoBack()) {
        viewer.goBack();
    } else {
        Intent back = new Intent(this, Resources1.class);
        replaceContentView("Called", back);
    }
}

public void replaceContentView(String id, Intent newIntent) {
    // Obtain the view of 'Called' activity using its Intent 'newIntent'
    View view = getLocalActivityManager().startActivity(id,
            newIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))
            .getDecorView();

    // set the above view to the content of 'Calling' activity.
    this.setContentView(view);
}

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.viewer);
    Intent launchingIntent = getIntent();
    String content = launchingIntent.getData().toString();
    viewer = (WebView) findViewById(R.id.webView);
    viewer.setWebViewClient(new myWebClient());
    viewer.getSettings().setJavaScriptEnabled(true);
    viewer.getSettings().setSupportMultipleWindows(true);
    viewer.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
    viewer.getSettings().setSupportZoom(true);
    //viewer.setWebChromeClient(new MyWebChromeClient());
    viewer.loadUrl(content);
    viewer.requestFocus();
}

public class myWebClient extends WebViewClient {
    @Override
    public void onPageStarted(WebView view, String url, Bitmap favicon) {

        super.onPageStarted(view, url, favicon);
    }

    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {

        view.loadUrl(url);
        return true;
    }
}

I've posted what I think is the pertinent code if you need more just ask. I have been working on this for a couple of days and can't figure it out.

Adding Log Cat:

05-10 08:41:06.560: I/dalvikvm(13342): threadid=1: stack overflow on call to Landroid/text/Layout;.draw:VLLLI
05-10 08:41:06.560: I/dalvikvm(13342):   method requires 276+20+52=348 bytes, fp is 0x4003a400 (256 left)
05-10 08:41:06.560: I/dalvikvm(13342):   expanding stack end (0x4003a300 to 0x4003a000)
05-10 08:41:06.560: I/dalvikvm(13342): Shrank stack (to 0x4003a300, curFrame is 0x4003dc10)
05-10 08:41:06.560: D/AndroidRuntime(13342): Shutting down VM
05-10 08:41:06.560: W/dalvikvm(13342): threadid=1: thread exiting with uncaught exception (group=0x40a421f8)

05-10 08:41:06.560: W/dalvikvm(7024): threadid=1: thread exiting with uncaught     exception (group=0x40a421f8)
05-10 08:41:06.580: E/AndroidRuntime(7024): FATAL EXCEPTION: main
05-10 08:41:06.580: E/AndroidRuntime(7024): java.lang.StackOverflowError
05-10 08:41:06.580: E/AndroidRuntime(7024):     at   android.text.BoringLayout.draw(BoringLayout.java:400)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.widget.TextView.onDraw(TextView.java:5088)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.View.draw(View.java:10983)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2887)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.widget.ListView.drawChild(ListView.java:3223)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.widget.AbsListView.dispatchDraw(AbsListView.java:2092)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.widget.ListView.dispatchDraw(ListView.java:3218)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.widget.ExpandableListView.dispatchDraw(ExpandableListView.java:230)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.View.draw(View.java:11088)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.widget.AbsListView.draw(AbsListView.java:3398)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2887)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.View.draw(View.java:10986)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2887)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
05-10 08:41:06.580: E/AndroidRuntime(7024):     at android.view.ViewGroup.dispatchDraw(ViewGrou
05-10 08:41:08.310: I/Process(7024): Sending signal. PID: 7024 SIG: 9

I think it might be in some other code you don't have here, but it looks like some kind of recursive/looping call drawing some views is overflowing the stack. It may be because when you come back to the second tab, it's creating a new view on top of the old instead of returning to the old. — Drake Clarris, May 10 '12 at 17:23
Thanks for the help, but it seems the issue was using the TabView. I was trying to keep it where if you clicked an option under the TabView that it would open it and keep the Tab, and that is what the replace content was for. The problem with doing it that way is that it is not starting a new activity, but adding onto the activity, ad then when you go back adding again, so the activity just kept growing and never being closed. I ended up having to only have the TabView for the three tabs, and when something under the tab was selected I launch a new activity, without the tabs at the top. — James, May 16 '12 at 15:36

Android A opens B back goes back to A twice, but crashes the third time

0 Answers0