我的 SQLite 数据库中有一个描述列,其中包含一些要在点击每个标记时显示的文本。每个标记都有自己的描述。问题是当我点击一个标记时,我AlertDialog
会显示所有其他标记。我正在使用以下代码:
@Override
protected boolean onTap(int index) {
db = openHelper.getWritableDatabase();
String[] result_columns = new String[] {COL_DESCRI};
Cursor cur = db.query(true, TABLE_COORD, result_columns, null, null, null, null, null, null);
cur.moveToFirst();
while (cur.isAfterLast() == false) {
String description = cur.getString(cur.getColumnIndexOrThrow("description"));
AlertDialog.Builder dialog = new AlertDialog.Builder(Geo.this);
dialog.setTitle("Infos.");
dialog.setMessage(description);
dialog.setPositiveButton("OK", new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
dialog.show();
cur.moveToNext();
}
cur.close();
db.close();
return true;
}
该onTap
功能似乎正在工作:
protected boolean onTap(int index) {
db = openHelper.getWritableDatabase();
String[] result_columns = new String[] {COL_DESCRI};
Cursor cur = db.query(true, TABLE_COORD, result_columns, null, null, null, null, null, null);
cur.moveToPosition(index);
String description = cur.getString(cur.getColumnIndexOrThrow("description"));
AlertDialog.Builder dialog = new AlertDialog.Builder(Geo.this);
dialog.setTitle("Infos.");
dialog.setMessage(description);
dialog.setPositiveButton("OK", new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
dialog.show();
cur.close();
db.close();
return true;
}
我知道我必须为 each 分配一个索引AlertDialog
,但我不知道该怎么做。我试图解决这个问题,但我似乎做不到。关于如何解决问题的任何建议?