Using content providers in Android post

activity.java

package com.jcla1.android.test.bookmarksgetter;

import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.Browser;
import android.provider.Browser.BookmarkColumns;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class BookmarkPosterAktivity extends Activity {
	
	Button getBookmarksButton;
	
	Uri bookmarks =  Browser.BOOKMARKS_URI;
	
	List<String> bookmarksList = new ArrayList<String>();
			
	String[] columns = new String[] {           
            BookmarkColumns.URL
	};
	
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        getBookmarksButton = (Button)this.findViewById(R.id.getBookmarksButton);

        Cursor managedCursor = managedQuery(
            bookmarks, // URI of the resource
            columns,   // Which columns to return 
            null,      // Which rows to return (all rows)
            null,      // Selection arguments (none)
            null);     // Order the results (in the order they come)
        
        getBookmarksButton.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View v) {
                            if (managedCursor.moveToFirst()) {
                                String url;
                                // Variable for holding the retrieved URL
                                int urlColumn = cur.getColumnIndex(BookmarkColumns.URL);
                                // Reference to the the column containing the URL
        
                                do {
                                    url = cur.getString(urlColumn);     
                                    // Get the field values
                                    bookmarksList.add(url);
                                    // Do something with the values.
                                } while (managedCursor.moveToNext());

                            }
			}
        });   
        
    }
}

cursor.java

import android.database.Cursor;

Cursor managedCursor = managedQuery(
    bookmarks, // URI of the resource
    columns,   // Which columns to return 
    null,      // Which rows to return (all rows)
    null,      // Selection arguments (none)
    null);     // Order the results (in the order they come)

onclicklistener.java

import android.view.View.OnClickListener;

getBookmarksButton.setOnClickListener(new OnClickListener() {
    @Override
    public void onClick(View v) {
        if (managedCursor.moveToFirst()) {
            String url;
            // Variable for holding the retrieved URL
            int urlColumn = cur.getColumnIndex(BookmarkColumns.URL);
            // Reference to the the column containing the URL
        
            do {
                url = cur.getString(urlColumn);     
                // Get the field values
                bookmarksList.add(url);
                // Do something with the values.
            } while (managedCursor.moveToNext());

        }
    }
}); 

variables.java

import android.widget.Button;
import android.provider.Browser;
import android.net.Uri;

import java.util.List;

Button getBookmarksButton = (Button)this.findViewById(R.id.getBookmarksButton); 
// I have set up a simple button in my layout, for which we will write a onClick listener.

Uri bookmarks =  Browser.BOOKMARKS_URI;
// The URI to query for bookmarks and history

List<String> bookmarksList = new ArrayList<String>();
// Here we'll store the retrieved data.

String[] columns = new String[] {           
    BookmarkColumns.URL
};
// Array of all the columns you want to get. If you wanted any more like when it was created,
// just add another entry in the Array.