Question

I’m making an android application using phonegap. I’m using phonegap’s Storage api for querying a database. here’s my code:

function directPath(src, dest)
{
    var db = window.openDatabase("Database", "1.0", "PhoneGap Demo", 200000);
    db.transaction(queryDB, errorCB);
    return arrayroute;
}

function queryDB(tx)
{
    tx.executeSql(query, [], querySuccess, errorCB);
}

function querySuccess(tx,results) {
    //Write some code here.
}

function errorCB(err) {
    alert("Error in SQL: " + err);
}

The problem is I want to wait till the callback method querySuccess finishes execution before returning from the directPath method.

Answer 1

Don’t try to fight the asynchrony: Your app might end up seeming unresponsive to the user. Use the querySuccess callback for any code that has to be executed afterwards.