EditText Field Is Crashing My Android App

Hi all i have updated my post to show the full xml file, which will show if i am doing something wrong.

i implemented a custom dialog with an edit text field and it keeps crashing. I will also like to access the values filled in the text field. Any idea where i am going wrong? Thanks.

Below is the offending/troublesome??? code

First i show the xml file which contains my layout for the alert dialog.

   <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="wrap_content" android:layout_height="wrap_content">

  <ImageView android:id="@+id/ImageView01"
  android:layout_width="wrap_content" android:layout_height="wrap_content"
   android:layout_centerHorizontal="true" />

 <ScrollView android:id="@+id/ScrollView01"
   android:layout_width="wrap_content" android:layout_below="@+id/ImageView01"
    android:layout_height="200px">

   <TextView android:text="@+id/TextView01" android:id="@+id/TextView01"
   android:layout_width="wrap_content" android:layout_height="wrap_content" />

   <EditText 
   android:id="@+id/lastname"
    android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:hint="blah"
    />
   </ScrollView>

 <Button android:id="@+id/Button01" 
 android:layout_below="@id/ScrollView01"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
  android:layout_centerHorizontal="true"
   android:text="Cancel" /> 
  </RelativeLayout>

Then main activity file which implements my button click events...etc. .......

    setContentView(R.layout.main);
    //this button will show the dialog
    Button button1main = (Button) findViewById(R.id.Button01main);

    button1main.setOnClickListener(new View.OnClickListener() {

        public void onClick(View OnClickListener) {
            //set up dialog
            final Dialog dialog = new Dialog(MoredialogActivity.this);
            dialog.setContentView(R.layout.maindialog);
            dialog.setTitle("This is my custom dialog box");
            dialog.setCancelable(true);



            TextView text = (TextView) dialog.findViewById(R.id.TextView01);
            text.setText(R.string.lots_of_text);

            //set up image view
            ImageView img = (ImageView) dialog.findViewById(R.id.ImageView01);
            img.setImageResource(R.drawable.icon);

            //set up button
            Button bu开发者_开发技巧tton = (Button) dialog.findViewById(R.id.Button01);
            button.setOnClickListener(new View.OnClickListener() {

                public void onClick(View v) {
                    dialog.dismiss();
                    //finish();
                }
            });

            dialog.show();
        }
    });
}

}

You have two items in your ScrollView. According to the doc :

A ScrollView is a FrameLayout, meaning you should place one child in it containing the entire contents to scroll; this child may itself be a layout manager with a complex hierarchy of objects.

So you should had another layout, like a linear layout :

<ScrollView
   android:id="@+id/ScrollView01"
   android:layout_width="wrap_content"
   android:layout_below="@+id/ImageView01"
   android:layout_height="200px">
   <LinearLayout
      android:layout_width="wrap_content"
      android:layout_height="fill_parent"
      android:orientation="vertical"
      android:gravity="center">
      <TextView
         android:text="@+id/TextView01"
         android:id="@+id/TextView01"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content" />
      <EditText 
         android:id="@+id/lastname"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:hint="blah" />
   </LinearLayout>
</ScrollView>