Android cursoroutofboundexception
我正在做一个简单的应用程序,我有一个edittext字段和一个按钮,按钮有一个onclick事件。代码如下所示:Android cursoroutofboundexception,android,cursor,contactscontract,Android,Cursor,Contactscontract,我正在做一个简单的应用程序,我有一个edittext字段和一个按钮,按钮有一个onclick事件。代码如下所示: private static final int CONTACT_PICKER_RESULT = 1; public void doLaunchContactPicker(View view) { Intent contactPickerIntent = new Intent(Intent.ACTION_PICK, Contacts.CO
private static final int CONTACT_PICKER_RESULT = 1;
public void doLaunchContactPicker(View view) {
Intent contactPickerIntent = new Intent(Intent.ACTION_PICK,
Contacts.CONTENT_URI);
startActivityForResult(contactPickerIntent, CONTACT_PICKER_RESULT);
}
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
String contactname = "";
// use the contact provider to get the contact details
Uri result = data.getData();
Cursor cursor = getContentResolver().query(result, null, null, null, null);
int idx = cursor.getColumnIndexOrThrow(ContactsContract.Contacts._ID);
contactname = cursor.getString(idx);
EditText name = (EditText) findViewById(R.id.editText1);
name.setText(contactname);
cursor.close();
}
我正在调用contacts picker活动,当我选择要在edittext字段中填充联系人姓名的联系人时
其代码如下所示:
private static final int CONTACT_PICKER_RESULT = 1;
public void doLaunchContactPicker(View view) {
Intent contactPickerIntent = new Intent(Intent.ACTION_PICK,
Contacts.CONTENT_URI);
startActivityForResult(contactPickerIntent, CONTACT_PICKER_RESULT);
}
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
String contactname = "";
// use the contact provider to get the contact details
Uri result = data.getData();
Cursor cursor = getContentResolver().query(result, null, null, null, null);
int idx = cursor.getColumnIndexOrThrow(ContactsContract.Contacts._ID);
contactname = cursor.getString(idx);
EditText name = (EditText) findViewById(R.id.editText1);
name.setText(contactname);
cursor.close();
}
所有这些代码都包含在主活动的onCreate()
中
当我在emulator中运行应用程序并单击按钮时,我将获得联系人列表(我在emulator中创建了3个联系人)。当我选择一个联系人时,我在DDMS中得到一个错误。错误是:
06-09 19:24:16.188: ERROR/AndroidRuntime(7158): Caused by: android.database.CursorIndexOutOfBoundsException: Index -1 requested, with a size of 1
您必须首先调用cursor.moveToFirst()。光标的第一个位置始终为-1