how to solve arrayindexoutofbound exception

[Suzzane Pinto]

hi,
iam getting this exception at logcat can anyone please help me solve it....i tried hard but could resolve

02-15 14:35:26.200: W/System.err(715): 	at com.ixifoto.albums.MobileArrayAdapter.getView(MobileArrayAdapter.java:51)
02-15 14:35:26.200: W/System.err(715): 	at android.widget.AbsListView.obtainView(AbsListView.java:1274)
02-15 14:35:26.200: W/System.err(715): 	at android.widget.ListView.makeAndAddView(ListView.java:1668)
02-15 14:35:26.200: W/System.err(715): 	at android.widget.ListView.fillDown(ListView.java:637)
02-15 14:35:26.200: W/System.err(715): 	at android.widget.ListView.fillFromTop(ListView.java:694)
02-15 14:35:26.211: W/System.err(715): 	at android.widget.ListView.layoutChildren(ListView.java:1521)
02-15 14:35:26.211: W/System.err(715): 	at android.widget.AbsListView.onLayout(AbsListView.java:1113)
02-15 14:35:26.211: W/System.err(715): 	at android.view.View.layout(View.java:6830)
02-15 14:35:26.211: W/System.err(715): 	at android.widget.FrameLayout.onLayout(FrameLayout.java:333)
02-15 14:35:26.211: W/System.err(715): 	at android.view.View.layout(View.java:6830)
02-15 14:35:26.211: W/System.err(715): 	at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1119)
02-15 14:35:26.211: W/System.err(715): 	at android.widget.LinearLayout.layoutVertical(LinearLayout.java:998)
02-15 14:35:26.211: W/System.err(715): 	at android.widget.LinearLayout.onLayout(LinearLayout.java:918)
02-15 14:35:26.211: W/System.err(715): 	at android.view.View.layout(View.java:6830)
02-15 14:35:26.211: W/System.err(715): 	at android.widget.FrameLayout.onLayout(FrameLayout.java:333)
02-15 14:35:26.211: W/System.err(715): 	at android.view.View.layout(View.java:6830)
02-15 14:35:26.211: W/System.err(715): 	at android.view.ViewRoot.performTraversals(ViewRoot.java:996)
02-15 14:35:26.211: W/System.err(715): 	at android.view.ViewRoot.handleMessage(ViewRoot.java:1633)
02-15 14:35:26.211: W/System.err(715): 	at android.os.Handler.dispatchMessage(Handler.java:99)
02-15 14:35:26.211: W/System.err(715): 	at android.os.Looper.loop(Looper.java:123)
02-15 14:35:26.211: W/System.err(715): 	at android.app.ActivityThread.main(ActivityThread.java:4363)
02-15 14:35:26.211: W/System.err(715): 	at java.lang.reflect.Method.invokeNative(Native Method)
02-15 14:35:26.221: W/System.err(715): 	at java.lang.reflect.Method.invoke(Method.java:521)
02-15 14:35:26.221: W/System.err(715): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
02-15 14:35:26.221: W/System.err(715): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
02-15 14:35:26.221: W/System.err(715): 	at dalvik.system.NativeStart.main(Native Method)
02-15 14:35:30.111: W/KeyCharacterMap(715): No keyboard for id 0

iam tryingg to get a listview of image and text view toghtr where i get this exception
the first time i load the listview i dont face any problem,later when i go back and load again it gives exception

[Naishadh Parmar]

Please post the code.
Maybe I can help you!!!

[Tim Moores]

By not accessing array indices that are higher than allowed for the array in question. If an array has n elements, then n-1 is the highest array index you can use.

[Naishadh Parmar]

Yes, I was going to see those problems when she would post the code

[Tim Moores]

More important than anyone pointing right at the problem is the understanding of what this exception means, and how one can guard against it in the future (and how to debug it if one isn't sure why it happens).

[Suzzane Pinto]

@Override
	public View getView(int position, View convertView, ViewGroup parent) {
		LayoutInflater inflater = (LayoutInflater) context
				.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
		View rowView = inflater.inflate(R.layout.list_mobile, parent, false);
		TextView textView = (TextView) rowView.findViewById(R.id.label);
		ImageView imageView = (ImageView) rowView.findViewById(R.id.logo);
		Integer[] MOBILE_OS = SongsActivity1.arl2.toArray(new Integer[SongsActivity1.arl2.size()]);
		textView.setText(values[position]+"\n"+MOBILE_OS[position]+"photos");;

		// Change icon based on name
		 s = values[position];

		System.out.println(s);
		try{
		for(position=0; position<SongsActivity1.myArr.size(); position++)
        {
			//imageView = new ImageView(this.context);
			if(s.equals(values[position]))
			{
			 System.out.println("loooooooooop"+SongsActivity1.myArr.get(position));
     	 
     	   byte[] f=(byte[]) SongsActivity1.myArr.get(position);
     	 ByteArrayInputStream imageStream = new ByteArrayInputStream(f);
     	 ByteArrayOutputStream baos = new ByteArrayOutputStream();  
     	 Bitmap theImage = BitmapFactory.decodeStream(imageStream);
     	 theImage.compress(Bitmap.CompressFormat.PNG, 100, baos);
     	 imageView.setImageBitmap(theImage);   
     	  // ByteArrayInputStream imageStream = new ByteArrayInputStream((byte[]) f);
  	  		 //mBitmap= BitmapFactory.decodeStream(imageStream);
            //mBitmap = BitmapFactory.decodeByteArray(f,0, f.length);
            //imageView = new ImageView(this.context);
            //imageView.setImageBitmap(mBitmap);
            //imageView = new ImageView(this.context);
    position++;
			 }
        }

		/*if (s.equals("WindowsMobile")) {
			imageView.setImageResource(R.drawable.windowsmobile_logo);
		} else if (s.equals("iOS")) {
			imageView.setImageResource(R.drawable.ios_logo);
		} else if (s.equals("Blackberry")) {
			imageView.setImageResource(R.drawable.blackberry_logo);
		} else {
			imageView.setImageResource(R.drawable.android_logo);
		}*/
		}
		catch(ArrayIndexOutOfBoundsException a){
			a.printStackTrace();
		}
		return rowView;

this is where i get arrayindexoutofbound exception

[Tim Moores]

So: where do you think the problem happens? You didn't post the top of the stack trace, which is where the most important information is - namely, in which line of code.

The only array seems to be SongsActivity1.myArr, so that's likely where the problem is. And the code is accessing it with an index that is too large. What do you think has happened? *How* could it have happened?

[Suzzane Pinto]

here is my code...which gives a listview with imageview and text

package com.ixifoto.albums;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;

import com.carouseldemo.main.R;



import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

public class MobileArrayAdapter extends ArrayAdapter<String> {
	private final Context context;
	private final String[] values;
	public static String s;
	public static Integer[]  MOBILE_OS;
	public LinearLayout mlayout;
	

	public MobileArrayAdapter(Context context, String[] values) {
		super(context, R.layout.list_mobile, values);
		this.context = context;
		this.values = values;
		//setTitle("MyAlbums");
	}

	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
		LayoutInflater inflater = (LayoutInflater) context
				.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
		View rowView = inflater.inflate(R.layout.list_mobile, parent, false);
		TextView textView = (TextView) rowView.findViewById(R.id.label);
		ImageView imageView = (ImageView) rowView.findViewById(R.id.logo);
		 MOBILE_OS = SongsActivity1.arl2.toArray(new Integer[SongsActivity1.arl2.size()]);
		//System.out.println("mobile os integer array"+MOBILE_OS);
		textView.setText(values[position]+"\n"+MOBILE_OS[position]+"photos");;
          
		// Change icon based on name
		 s = values[position];

		System.out.println(s);

		for( position=0; position<SongsActivity1.arl.size(); position++)   //SongsActivity1.arl.size() is arraylist of string
        {
			//imageView = new ImageView(this.context);
			if(s.equals(values[position]))
			{
			 System.out.println("loooooooooop"+SongsActivity1.arl.get(position));
     	 
     	   byte[] f=(byte[]) SongsActivity1.myArr.get(position);//SongsActivity1.myArr is arraylist of images
     	 
     	 ByteArrayInputStream imageStream = new ByteArrayInputStream(f);
     
     	 ByteArrayOutputStream baos = new ByteArrayOutputStream(); 
     
     	 Bitmap theImage = BitmapFactory.decodeStream(imageStream);
     	
     	 theImage.compress(Bitmap.CompressFormat.PNG, 100, baos);
     	
     	 imageView.setImageBitmap(theImage); 

 position++;
			 }
			
        }


		return rowView;
		
	}

	
}

i get the proper output when first time the list is created....later when i add an item then it gives arrayindexoutofbound exception...
can anyone suggest...i have pasted the adapter for the listview where actually m stuck....
please suggest help

[Suzzane Pinto]

can someone please get me a solution....searching solution since so many days....this arrayindex exception will make me mad n my application will crash....

looking for help...

[Suzzane Pinto]

the listview displays as many time as i want without any problem but wen i add a new element to the arraylist and then go to load the listview it gives me arrayindexoutofbound exception.....found no solution anywhere

[Maneesh Godbole]

Did you read what Tim said?

[Tim Moores]

In which line of code does the exception happen? What is the value of the index that causes the problem? What is the length of the array? These are all runtime issues that you need to work out, just looking at code isn't going to help much.

[Suzzane Pinto]

the problem is in line 53,56..length of the array depends upon the values to arraylist added at runtime..

[Suzzane Pinto]

the problem is here if(s.equals(values[position])) get the exception here

[Suzzane Pinto]

03-06 13:30:08.772: W/System.err(571): java.lang.ArrayIndexOutOfBoundsException
03-06 13:30:08.772: W/System.err(571): at com.ixifoto.albums.NewMobileAdapter.getView(NewMobileAdapter.java:94)
03-06 13:30:08.772: W/System.err(571): at android.widget.AbsListView.obtainView(AbsListView.java:1430)
03-06 13:30:08.772: W/System.err(571): at android.widget.ListView.makeAndAddView(ListView.java:1745)
03-06 13:30:08.781: W/System.err(571): at android.widget.ListView.fillDown(ListView.java:670)
03-06 13:30:08.781: W/System.err(571): at android.widget.ListView.fillFromTop(ListView.java:727)
03-06 13:30:08.790: W/System.err(571): at android.widget.ListView.layoutChildren(ListView.java:1598)
03-06 13:30:08.790: W/System.err(571): at android.widget.AbsListView.onLayout(AbsListView.java:1260)
03-06 13:30:08.790: W/System.err(571): at android.view.View.layout(View.java:7175)
03-06 13:30:08.790: W/System.err(571): at android.widget.RelativeLayout.onLayout(RelativeLayout.java:912)
03-06 13:30:08.790: W/System.err(571): at android.view.View.layout(View.java:7175)
03-06 13:30:08.790: W/System.err(571): at android.widget.FrameLayout.onLayout(FrameLayout.java:338)
03-06 13:30:08.790: W/System.err(571): at android.view.View.layout(View.java:7175)
03-06 13:30:08.790: W/System.err(571): at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1254)
03-06 13:30:08.790: W/System.err(571): at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1130)
03-06 13:30:08.790: W/System.err(571): at android.widget.LinearLayout.onLayout(LinearLayout.java:1047)
03-06 13:30:08.790: W/System.err(571): at android.view.View.layout(View.java:7175)
03-06 13:30:08.790: W/System.err(571): at android.widget.FrameLayout.onLayout(FrameLayout.java:338)
03-06 13:30:08.790: W/System.err(571): at android.view.View.layout(View.java:7175)
03-06 13:30:08.790: W/System.err(571): at android.view.ViewRoot.performTraversals(ViewRoot.java:1140)
03-06 13:30:08.790: W/System.err(571): at android.view.ViewRoot.handleMessage(ViewRoot.java:1859)
03-06 13:30:08.790: W/System.err(571): at android.os.Handler.dispatchMessage(Handler.java:99)
03-06 13:30:08.790: W/System.err(571): at android.os.Looper.loop(Looper.java:123)
03-06 13:30:08.800: W/System.err(571): at android.app.ActivityThread.main(ActivityThread.java:3683)
03-06 13:30:08.800: W/System.err(571): at java.lang.reflect.Method.invokeNative(Native Method)
03-06 13:30:08.800: W/System.err(571): at java.lang.reflect.Method.invoke(Method.java:507)
03-06 13:30:08.800: W/System.err(571): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
03-06 13:30:08.800: W/System.err(571): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
03-06 13:30:08.800: W/System.err(571): at dalvik.system.NativeStart.main(Native Method)

[Suzzane Pinto]

my adapter class is

package com.ixifoto.albums;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;


import com.carouseldemo.main.R;



import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

public class NewMobileAdapter extends BaseAdapter  {

	
	public Activity context;  
    public LayoutInflater inflater;  
	private final String[] values;
	public static String s;
	public static Integer[]  mob;
	
	private Object[] images;  
	
	public NewMobileAdapter(Activity context, String[] values, Object[] images) {
		super();
		this.context = context;
		this.values = values;
		
       
        this.images = images;  
  
        this.inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);  
		//setTitle("MyAlbums");
	}
	
	public int getCount() {
		// TODO Auto-generated method stub
		  return values.length; 
	}

	public Object getItem(int position) {
		// TODO Auto-generated method stub
		return null;
	}

	
	public long getItemId(int position) {
	    return position+1;
	  }

	  public int getItemViewType(int position) {
	    return mob[position];
	  }

	public static class ViewHolder  
    {  
        ImageView imgViewLogo;  
        TextView txtViewTitle;
        TextView txtViewDescription;
      
    } 
	public View getView(int position, View convertView, ViewGroup parent) {

        ViewHolder holder;  
        mob = SongsActivity1.arl2.toArray(new Integer[SongsActivity1.arl2.size()]);
        if(convertView==null)  
        {  
            holder = new ViewHolder();  
            convertView = inflater.inflate(R.layout.listitem_row, null);  
  
            holder.imgViewLogo = (ImageView) convertView.findViewById(R.id.imgViewLogo);  
            holder.txtViewTitle = (TextView) convertView.findViewById(R.id.txtViewTitle);  
           holder.txtViewDescription = (TextView) convertView.findViewById(R.id.txtViewDescription);  
  
            convertView.setTag(holder);  
        }  
        else  
            holder=(ViewHolder)convertView.getTag();
   	 s = values[position];
        for( position=0; position<SongsActivity1.arl.size(); position++)
        {
			
        	if(s.equals(values[position]))
			{
			 System.out.println("loooooooooop"+SongsActivity1.arl.get(position));
     	 
     	   byte[] f=(byte[]) SongsActivity1.myArr.get(position);
     	 
     	ByteArrayInputStream imageStream = new ByteArrayInputStream(f);
     
     	 ByteArrayOutputStream baos = new ByteArrayOutputStream(); 
     
     	 Bitmap theImage = BitmapFactory.decodeStream(imageStream);
     	
     	 theImage.compress(Bitmap.CompressFormat.PNG, 100, baos);
    
     	holder.imgViewLogo.setImageBitmap(theImage); 
    	 holder.txtViewTitle.setText(values[position]);
    	 holder.txtViewDescription.setText(mob[position]+"photo(s)");
     	// holder.txtViewTitle.setText(values[position]);  
     	 notifyDataSetChanged(); 
    
       // position++;
			}
       
        	
        }
  
       
  
        return convertView;  
    }  
	}

[Tim Moores]

Tim Moores wrote:What is the value of the index that causes the problem? What is the length of the array? These are all runtime issues that you need to work out, just looking at code isn't going to help much.

[Suzzane Pinto]

the problem is here if(s.equals(values[position])) get the exception here

the items are added at runtime

[Tim Moores]

Do you really not understand why we can't do anything without the information I'm asking for? Actually, once you have that information, you are in a position to address the problem yourself.

[Suzzane Pinto]

its says invalid index 6,size is 0

[Tim Moores]

So?

The problem is still the same I mentioned in my very first post:

By not accessing array indices that are higher than allowed for the array in question.

[Suzzane Pinto]

iam not geting arrayindexoutofbound exception now...but when i add element is not getting displayed in the listview....the size of string is same as size of images array here..it should display the image for the string value...but here it is displaying the image i select over other string value
please suggest...any idea

[Tim Moores]

You should start a new topic for unrelated questions, lest it gets confusing.

[Suzzane Pinto]

sory for the wrong post

[Tim Moores]

Tim Moores wrote:You should start a new topic for unrelated questions, lest it gets confusing.

Be sure to include detailed information about what you perceive to be the problem.