Soft keyboard "del" key fails in EditText on Gallery widget

Posted by droidful on Stack Overflow See other posts from Stack Overflow or by droidful
Published on 2010-06-04T17:26:58Z Indexed on 2010/06/13 2:52 UTC
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Hi,

I am developing an application in Eclipse build ID 20090920-1017 using android SDK 2.2 and testing on a Google Nexus One. For the purposes of the tests below I am using the IME "Android keyboard" on a non-rooted phone.

I have an EditText widget which exhibits some very strange behavior. I can type text, and then press the "del" key to delete that text; but after I enter a 'space' character, the "del" key will no longer remove characters before that space character.

An example speaks a thousand words, so consider the following two incredibly simple applications...

Example 1: An EditText in a LinearLayout widget:

package com.example.linear.edit;

import android.app.Activity;
import android.os.Bundle;

import android.view.ViewGroup.LayoutParams;
import android.widget.EditText;
import android.widget.Gallery;
import android.widget.LinearLayout;

public class LinearEdit extends Activity
{
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);        

        LinearLayout layout = new LinearLayout(getApplicationContext());
        layout.setLayoutParams(new Gallery.LayoutParams(Gallery.LayoutParams.MATCH_PARENT, Gallery.LayoutParams.MATCH_PARENT));

        EditText edit = new EditText(getApplicationContext());
        layout.addView(edit, new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT)); 

        setContentView(layout);
    }
}

Run the above application, enter text "edit example", then press the "del" key several times until the entire sentence is deleted. Everything Works fine.

Now consider example 2: An EditText in a Gallery widget:

package com.example.gallery.edit;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.Gallery;
import android.widget.LinearLayout;

public class GalleryEdit extends Activity
{
    private final String[] galleryData = {"string1", "string2", "string3"};

    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);        

        Gallery gallery = new Gallery(getApplicationContext());

        gallery.setAdapter(new ArrayAdapter(getApplicationContext(), android.R.layout.simple_list_item_1, galleryData)
        {
            @Override
            public View getView(int position, View convertView, ViewGroup parent)
            {
                LinearLayout layout = new LinearLayout(getApplicationContext());
                layout.setLayoutParams(new Gallery.LayoutParams(Gallery.LayoutParams.MATCH_PARENT, Gallery.LayoutParams.MATCH_PARENT));

                EditText edit = new EditText(getApplicationContext());
                layout.addView(edit, new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT)); 

                return layout;
            }
        });

        setContentView(gallery);
    }
}

Run the above application, enter text "edit example", then press the "del" key several times. If you are getting the same problem as me then you will find that you can't deleted past the 'space' character. All is not well.

If anyone could shed some light on this issue I would be most appreciative.

Regards

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