Shouldnt you check if the bundle is null or not? Try to loop through
it when you get there from a onContextItemSelected event. I'm guessing
some value somewhere is null when it should be instantiated. Perhaps
the intent is started quicker or without the bundle somehow so you get
a nullpointer exception?
On 31 dec 2009, 15:57, JasonMP <hyperje...@gmail.com> wrote:
> yes, Select.class is another one of my files. throughout my app there
> are a few different calls to it, all done the same way i.e. "Intent i
> = new Intent(this, Select.class); startActivity(i);"
>
> No where in Select.class do I make a call to start Select.class or
> Sheet.class. When its done it calls finish();
>
> in the onCreate() of Select.class I grab the extras from the invoking
> class with this line of code:
>
> public class Select extends ListActivity{
>
> DBAdapter db = new DBAdapter(this);
> String slotName = null;
>
> @Override
> public void onCreate(Bundle savedInstanceState) {
> super.onCreate(savedInstanceState);
>
> db.open();
>
> ListView list = getListView();
>
> View v = View.inflate(this, R.layout.list_header, null);
> list.addHeaderView(v, null, false);
>
> name = this.getIntent().getStringExtra(DBAdapter.KEY_NAME);
> }
>
> Could it be something in the .getIntent() method? or
> the .getStringExtra()?
>
> On Dec 30, 7:19 pm, "Stephen @ gmail.com" <sdickey2...@gmail.com>
> wrote:
>
>
>
> > Now that I understand your intent creation a little better, and I see that
> > the intent you are creating is unique from the class in which the code
> > exists, I am not quite sure how it could be an infinite loop in the
> > (immediate) way I was thinking.
>
> > Reading this code
>
> > Intent i = new Intent(this, Select.class);
>
> > I have to start thinking there's something wrong with this. I tried to look
> > up the "Select" class on the android developers site, and couldn't find it.
> > Is that a class from another of your files? I guess I would wonder if the
> > code being invoked there, is somehow causing this class to be invoked, thus
> > causing some kind of loop. I would grep for any reference to your Sheet
> > class, from anywhere else in your code, and that would likely be suspect.
>
> > In general, the below is kind of a side topic, to maybe help you with
> > generic debugging.
>
> > All the Best, Steve.
>
> > *Ok... the only thing I can think to really help you is to start taking
> > advantage of logging. In your import list, I see you don't include the
> > logger code, so maybe you can give this a shot.
>
> > 1) in the import list
>
> > import android.util.Log;
>
> > 2) and throughout your code
>
> > Log.d( TAG, DebugText );
>
> > where TAG is a string that is unique to you, and "DebugText" is something
> > useful to identify the part of the program you're interested in.
>
> > *
>
> > On Wed, Dec 30, 2009 at 11:32 AM, JasonMP <hyperje...@gmail.com> wrote:
> > > Ok, I'm suddenly very curious by your previous statement stephen about
> > > the possibility of creating an infinite loop. Upon a little more
> > > investigation I'm now getting errors all over the place...same
> > > error....just at different points in the app where I try to
> > > startActivity(intent); As soon as the new activity receives focus is
> > > crashes.
>
> > > On Dec 30, 1:58 pm, JasonMP <hyperje...@gmail.com> wrote:
> > > > package com.mallet.dtool;
>
> > > > import android.app.AlertDialog;
> > > > import android.app.TabActivity;
> > > > import android.app.AlertDialog.Builder;
> > > > import android.content.DialogInterface;
> > > > import android.content.Intent;
> > > > import android.content.DialogInterface.OnClickListener;
> > > > import android.content.res.Configuration;
> > > > import android.database.Cursor;
> > > > import android.graphics.Color;
> > > > import android.os.Bundle;
> > > > import android.view.ContextMenu;
> > > > import android.view.KeyEvent;
> > > > import android.view.Menu;
> > > > import android.view.MenuItem;
> > > > import android.view.View;
> > > > import android.view.ContextMenu.ContextMenuInfo;
> > > > import android.widget.AdapterView;
> > > > import android.widget.ImageView;
> > > > import android.widget.LinearLayout;
> > > > import android.widget.ListView;
> > > > import android.widget.SimpleCursorAdapter;
> > > > import android.widget.TabHost;
> > > > import android.widget.TableLayout;
> > > > import android.widget.TextView;
> > > > import android.widget.Toast;
> > > > import android.widget.AdapterView.AdapterContextMenuInfo;
> > > > import android.widget.AdapterView.OnItemClickListener;
> > > > import android.widget.TabHost.OnTabChangeListener;
>
> > > > public class Sheet extends TabActivity{
>
> > > > @Override public void onConfigurationChanged(Configuration
> > > newConfig)
> > > > { super.onConfigurationChanged(newConfig); }
> > > > DBAdapter db = new DBAdapter(this);
> > > > static Long cRowId;
>
> > > > //Variable declaration
>
> > > > public static Integer tabState = 1;
>
> > > > @Override
> > > > public void onCreate(Bundle savedInstanceState) {
> > > > super.onCreate(savedInstanceState);
> > > > setContentView(R.layout.sheet);
>
> > > > db.open();
>
> > > > //capture Tab4 elements
> > > > aList = (ListView) findViewById(R.id.alist);
> > > > aList.setOnItemClickListener(new OnItemClickListener(){
>
> > > > @Override
> > > > public void onItemClick(AdapterView<?> arg0,
> > > > View
> > > arg1, int arg2,
> > > > long arg3) {
>
> > > > Cursor c = db.getAll(Sheet.charName);
>
> > > > c.moveToPosition(arg2 - 1);
>
> > > > Builder builder2 = new
> > > AlertDialog.Builder(Sheet.this);
> > > >
> > > > builder2.setTitle(c.getString(c.getColumnIndexOrThrow
> > > > (DBAdapter.KEY_NAME)));
> > > > builder2.setIcon(R.drawable.equipment);
>
> > > builder2.setMessage(c.getString(c.getColumnIndexOrThrow
> > > > (DBAdapter.KEY_DESC)));
> > > > builder2.setPositiveButton("Ok", null);
> > > > builder2.show();
>
> > > > }
>
> > > > });
> > > > registerForContextMenu(aList);
>
> > > > }
> > > > @Override
> > > > public void onResume()
> > > > {
> > > > super.onResume();
>
> > > > fillAList();
> > > > }
> > > > @Override
> > > > public void onDestroy(){
> > > > super.onDestroy();
> > > > db.close();
> > > > }
>
> > > > @Override
> > > > public void onCreateContextMenu(ContextMenu menu, View v,
> > > > ContextMenuInfo menuInfo) {
>
> > > > if(v == aList){
> > > > menu.add(0, 7, 0, "option 1");
> > > > }
> > > > }
>
> > > > @Override
> > > > public boolean onContextItemSelected(MenuItem item) {
> > > > AdapterContextMenuInfo info = (AdapterContextMenuInfo)
> > > > item.getMenuInfo();
> > > > Cursor c = null;
> > > > startManagingCursor(c);
> > > > Long id;
> > > > Integer idInt;
>
> > > > switch(item.getItemId()) {
>
> > > > case 7:
> > > > c = db.getInfo(name);
> > > > c.moveToPosition(info.position - 1);
> > > > Intent i = new Intent(this, Select.class);
> > > > i.putExtra(DBAdapter.KEY_NAME,
> > > c.getString(c.getColumnIndexOrThrow
> > > > (DBAdapter.KEY_NAME)));
> > > > startActivity(i);
>
> > > > return true;
> > > > }
>
> > > > return super.onContextItemSelected(item);
> > > > }
>
> > > > public void fillArmorList(){
>
> > > > Cursor c = db.getAll(Sheet.charName);
> > > > startManagingCursor(c);
>
> > > > String[] from = new String[]{//DB columns};
>
> > > > int[] to = new int[]{//Layout Elements};
>
> > > > SimpleCursorAdapter items = new
> > > > SimpleCursorAdapter(this,
> > > > R.layout.item_row, c, from, to);
> > > > aList.setAdapter(items);
> > > > }
>
> > > > }
>
> > > > On Dec 30, 1:41 pm, JasonMP <hyperje...@gmail.com> wrote:
>
> > > > > Hmm, Ok, I've placed the breakpoint in and everything appears to be
> > > > > fine, but it still doesn't work. This code is essentially a copy/
> > > > > paste from another area of my app. In that instance its being called
> > > > > from a ListView contextmenu as well and works fine. What do you mean
> > > > > exactly by catching ALL the exceptions? Is that something I need to
> > > > > add into the code?
>
> > > > > On Dec 30, 1:21 pm, "Stephen @ gmail.com" <sdickey2...@gmail.com>
> > > > > wrote:
>
> > > > > > Sorry if this sounds silly: you might want to set a breakpoint on
> > > line:
>
> > > > > > startActivity(i);
>
> > > > > > when you hit that point, examine "i" carefully. From your log, I
> > > wonder if
> > > > > > the act of starting the activity invokes your current code, inducing
> > > an
> > > > > > infinite loop. Also, if it were my code, I would want to ensure I
> > > catch all
> > > > > > uncaught exceptions. Around your code that you feel is failing, I
> > > would
> > > > > > catch the general "Exception" as well as the AndroidRuntimeException
> > > (cannot
> > > > > > remember if I've spelled that perfectly right), and print out the
> > > stack
> > > > > > frame from the exception that was caught. that might yield
> > > additional info.
>
> > > > > > Finally, further assistance from the forum, you may want to include
> > > more of
> > > > > > your code. You probably have something special in there you don't
> > > want to
> > > > > > share... just make what you post generic enough so we can see the
> > > construct
> > > > > > of your whole activity.
>
> > > > > > all the best, steve.
>
> > > > > > On Wed, Dec 30, 2009 at 10:10 AM, JasonMP <hyperje...@gmail.com>
> > > wrote:
> > > > > > > Yes I'm using eclipse. I use the debugger and when I hit that
> > > point
>
> ...
>
> meer lezen »
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