首先，我为可能的语法错误道歉，我是巴西人。
我正在尝试获取listview变量中的值，但是当我单击_id > 1 on时出现错误提示listview。
但是当我点击第一个 _id时没有任何反应！
图片：
代理列表.java
public class ProxyListView extends Activity {
private SQLiteAdapter mySQLiteAdapter;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.proxylist);
final ListView listContent = (ListView)findViewById(R.id.contentlist);
/*
* Create/Open a SQLite database
* and fill with dummy content
* and close it
*/
mySQLiteAdapter = new SQLiteAdapter(this);
mySQLiteAdapter.openToWrite();
mySQLiteAdapter.insert("111.168.1.1","8080","http");
mySQLiteAdapter.insert("222.168.2.1","8080","http");
mySQLiteAdapter.insert("333.168.3.1","8080","http");
mySQLiteAdapter.insert("444.168.4.1","8080","http");
mySQLiteAdapter.insert("555.168.5.1","8080","http");
mySQLiteAdapter.insert("666.168.6.1","8080","http");
mySQLiteAdapter.insert("777.168.7.1","8080","http");
mySQLiteAdapter.insert("888.168.8.1","8080","http");
mySQLiteAdapter.insert("999.168.9.1","8080","http");
mySQLiteAdapter.insert("1010.168.10.1","8080","http");
mySQLiteAdapter.insert("1111.168.11.1","8080","http");
mySQLiteAdapter.close();
/*
* Open the same SQLite database
* and read all it's content.
*/
mySQLiteAdapter = new SQLiteAdapter(this);
mySQLiteAdapter.openToRead();
Cursor cursor = mySQLiteAdapter.queueAll();
startManagingCursor(cursor);
String[] from = new String[]{SQLiteAdapter.KEY_ID,SQLiteAdapter.KEY_IP,SQLiteAdapter.KEY_PORT, SQLiteAdapter.KEY_TYPE};
int[] to = new int[]{R.id.text,R.id.text2,R.id.text3,R.id.text4};
SimpleCursorAdapter cursorAdapter =
new SimpleCursorAdapter(this, R.layout.row, cursor, from, to);
listContent.setAdapter(cursorAdapter);
listContent.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {
selectData(position);
}
public void selectData(int position) {
try{
mySQLiteAdapter.openToRead();
Cursor c = mySQLiteAdapter.sqLiteDatabase.rawQuery("SELECT * FROM Proxy WHERE _id = '"+position+"'", null);
while(c.moveToNext()){
String id = c.getString(c.getColumnIndex("_id"));
String proxy = c.getString(c.getColumnIndex("proxy"));
String port = c.getString(c.getColumnIndex("port"));
String type = c.getString(c.getColumnIndex("type"));
Context context = getApplicationContext();
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context,id+proxy+port+type, duration);
toast.show();
}
}catch(Exception erro){
//
Context context = getApplicationContext();
CharSequence text = "Erro";
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context, text, duration);
toast.show();
}finally{
mySQLiteAdapter.close();
//
}
}
});
}
}
日志：
E/CursorWindow(585): Bad request for field slot 0,-1. numRows = 1, numColumns = 4