Question

I have the variable string (user gets to set it via a ListView with tickboxes, so string can contain any number of fruits)

    private static final String kernset = "Banana, Peach"

I have the following SQLite Query

          Cursor cursor = db.query (TABLE_NAME, new String[] {
        WOORD },
        "kern IN (\"Banana\", \"Apple\")", null, null, null, null, null);   

I want to replace the (\”Banana\”, \”Apple\”) part of the query with the variable.

How should I do that?

Thanks!

Answer 1

If you want to place a variable into your selection parameter, you can split your string using split method, and then form your selection like

StringBuilder sb = new StringBuilder();
sb.append("kern IN (");
String[] inItems = kernset.split("\\,\\s+");

for (int i=0; i < inItems.length; i++){
    if (i > 0)
        sb.append(", ");
    sb.append("'" + inItems[i] + "'");
}
sb.append(")");
String selection = sb.toString();

however if you wish to use ? in selection and replace it with selectionArgs[] it seems to be imposible since values passed in selectionArgs are surrounded with ' '. You can however form selection with ? instead of actual values (like kern IN (?, ?, ?))and then pass inItems via selectionArgs[]