AndroidでのContentResolverの使用
2343 ワード
ContentResolverを使用して電話帳の情報を追加削除し、詳細コードは以下の通りです.
AndroidManifest.xmlには、次の権限が追加されています.
import android.app.ListActivity;
import android.content.ContentValues;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.Contacts.People;
import android.support.v4.widget.SimpleCursorAdapter;
import android.widget.ListAdapter;
public class MainActivity extends ListActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
insert("tester1");
update("tester2", new String(People.NAME + "='tester1'"));
delete(new String(People.NAME + "='tester2'"));
select();
}
/*
*
* @param name The value of People.NAME
*/
public void insert(String name) {
ContentValues ct = new ContentValues();
ct.put(People.NAME, name);
getContentResolver().insert(People.CONTENT_URI, ct);
}
/*
*
* @param name A new name for People.NAME
* @param where The update requirement.
*/
public void update(String name, String where) {
ContentValues ct = new ContentValues();
ct.put(People.NAME, name);
getContentResolver().update(People.CONTENT_URI, ct, where, null);
}
/*
*
* @param where The delete requirement.
*/
public void delete(String where) {
getContentResolver().delete(People.CONTENT_URI, where, null);
}
//
public void select() {
Cursor cursor = getContentResolver().query(People.CONTENT_URI,
new String[] { People._ID, People.NAME }, null, null, null);
ListAdapter adapter = new SimpleCursorAdapter(this,
android.R.layout.simple_list_item_1, cursor,
new String[] { People.NAME }, new int[] { android.R.id.text1 });
setListAdapter(adapter);
}
}
AndroidManifest.xmlには、次の権限が追加されています.
<uses-permission android:name="android.permission.READ_CONTACTS"/>
<uses-permission android:name="android.permission.WRITE_CONTACTS"/>