我需要一些帮助才能将 onItemClickListener 添加到联系人的 ListView 中。我想从选定的联系人中捕获一些信息,例如姓名、电话号码和其他信息,并将其传递给另一个活动。
我不确定如何在下面的代码中添加 onListItemListener 以及如何从所选联系人中获取信息?我还想知道如何通过 Intent 传递多个值?我将其用于一个值:
Intent i = new Intent(Activity_1.this, Activity_2.class);
startActivityForResult(i, 1);
Intent intent = new Intent();
intent.putExtra("imageId", imagePath);
setResult(RESULT_OK, intent);
finish();
这是我在 ListView 活动中的代码。我昨天在这里得到了一些帮助,我想知道代码的 while (cursor.moveToNext()){} 部分是否对 ListView 很重要,因为它没有它也能工作?
一些帮助!谢谢!
public class Activity_3 extends Activity {
ListView listView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_3);
listView=(ListView)findViewById(R.id.contactList);
String[] projection = {ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME,
ContactsContract.CommonDataKinds.Phone.NUMBER,
ContactsContract.CommonDataKinds.Phone._ID};
// Get a cursor with all people
Cursor cursor = managedQuery(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, projection,null,null, null);
//Cursor cursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, projection,null,null, null);
String[] fromColumn = {ContactsContract.Contacts.DISPLAY_NAME};
int[] toView = {R.id.contactItem };
while (cursor.moveToNext())
{
String Name=cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
String Number=cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
}
startManagingCursor(cursor);
ListAdapter adapter = new SimpleCursorAdapter(this, R.layout.activity_3, cursor, fromColumn, toView );
listView.setAdapter(adapter);
}
}