AlertDialog with a List of Items

Tutorial. I was able to give the dialog an icon and a title. But when I gave it a message, the list of items disappeared.

Source code in ListDialog.zip

1. ListDialogActivity.java
2. R.java
3. main.xml
4. AndroidManifest.xml

AlertDialog with a list of items in ApiDemos/App/Alert Dialogs

Source code is in AlertDialogSamples.java, alert_dialog.xml, and strings.xml.

1. List dialog: case DIALOG_LIST. Shows a little dialog with a message when you click on an item.
2. Single choice list: case DIALOG_SINGLE_CHOICE. Radio buttons with Cancel and OK at the bottom.
3. Repeat alarm: case DIALOG_MULTIPLE_CHOICE. Check boxes with Cancel and OK at the bottom.

Things to try

1. Give each item a radio button. Add the following fields to class ListDialogActivity

   	static final int checkedItem = 3;	//Rearden metal is already checked.
   	int which = checkedItem;		//which item is currently checked
   

   Change the call to setItems to the following. See ApiDemos/App/Alert Dialogs/Single choice list.

   			builder.setSingleChoiceItems(items, checkedItem, new DialogInterface.OnClickListener() {
   				@Override
   				public void onClick(DialogInterface dialog, int which) {
   					((ListDialogActivity)((Dialog)dialog).getOwnerActivity()).which = which;
   					textView.setText("Thank you for considering " + items[which] + ".");
   				}
   			});
   
   			builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
   				@Override
   				public void onClick(DialogInterface dialog, int which) {
   					textView.setText("");
   				}
   			});
   
   			builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
   				@Override
   				public void onClick(DialogInterface dialog, int which) {
   					int i = ((ListDialogActivity)((Dialog)dialog).getOwnerActivity()).which;
   					textView.setText("Thank you for selecting " + items[i] + ".");
   				}
   			});
   

   


2. Give each item a checkbox (with a green check) instead of a radio button. See ApiDemos/App/Alert Dialogs/Repeat alarm. Change the call to setSingleChoiceItems to the following. You’ll also have to replacethe which method of the activity with an array of booleans.

   		boolean[] checkedItems = {true, false, false, true};
   
   			builder.setMultiChoiceItems(items, checkedItems, new DialogInterface.OnMultiChoiceClickListener() {
   				@Override
   				public void onClick(DialogInterface dialog, int which, boolean isChecked) {
   					if (isChecked) {
   						((ListDialogActivity)((Dialog)dialog).getOwnerActivity()).which = which;
   						textView.setText("Thank you for considering " + items[which] + ".");
   					} else {
   						textView.setText("");
   					}
   				}
   			});