Professional Android 4 Application Development

302 x CHAPTER 8 DATABASES AND CONTENT PROVIDERS
Creating the Content Provider
Start by creating a new Content Provider that will be used to store each earthquake once it has been
parsed out of the Internet feed.
1. Open the Earthquake project and create a new EarthquakeProvider class that extends
ContentProvider. Include stubs to override the onCreate, getType, query, insert,
delete, and update methods.
package com.paad.earthquake;
import android.content.ContentProvider;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.content.UriMatcher;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteDatabase.CursorFactory;
import android.database.sqlite.SQLiteOpenHelper;
import android.database.sqlite.SQLiteQueryBuilder;
import android.net.Uri;
import android.text.TextUtils;
import android.util.Log;
public class EarthquakeProvider extends ContentProvider {
@Override
public boolean onCreate() {
return false;
}
@Override
public String getType(Uri url) {
return null;
}
@Override
public Cursor query(Uri url, String[] projection, String selection,
String[] selectionArgs, String sort) {
return null;
}
@Override
public Uri insert(Uri _url, ContentValues _initialValues) {
return null;
}
@Override
public int delete(Uri url, String where, String[] whereArgs) {
return 0;
}