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SQlite Getting nearest locations (with latitude and longitude)
...ut will only work if you are using rectilinear coordinates (eg UTM or OS grid references). If using degrees for lat/lng (eg WGS84) then the above only works at the equator. At other latitudes, you need to decrease the impact of longitude on the sort order. (Imagine you're close to the north pole....
Show an image preview before upload
...bute of an image tag to a data URL:
The html code:
<input type="file" id="files" />
<img id="image" />
The JavaScript code:
document.getElementById("files").onchange = function () {
var reader = new FileReader();
reader.onload = function (e) {
// get loaded data and...
How can I read SMS messages from the device programmatically in Android?
...t to prevent exception
do {
String msgData = "";
for(int idx=0;idx<cursor.getColumnCount();idx++)
{
msgData += " " + cursor.getColumnName(idx) + ":" + cursor.getString(idx);
}
// use msgData
} while (cursor.moveToNext());
} else {
// empty ...
What is ViewModel in MVC?
...our employee domain model and it contains the following properties (unique identifier, first name, last name and date created):
public class Employee : IEntity
{
public int Id { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public Date...
Allow multi-line in EditText view in Android?
How to allow multi-line in Android's EditText view?
15 Answers
15
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sql primary key and index
Say I have an ID row (int) in a database set as the primary key. If I query off the ID often do I also need to index it? Or does it being a primary key mean it's already indexed?
...
How to read XML using XPath in Java
...xml version="1.0" encoding="UTF-8"?>
<Employees>
<Employee id="1">
<age>29</age>
<name>Pankaj</name>
<gender>Male</gender>
<role>Java Developer</role>
</Employee>
<Employee id="2">
...
How to draw circle in html page?
...
You can't draw a circle per se. But you can make something identical to a circle.
You'd have to create a rectangle with rounded corners (via border-radius) that are one-half the width/height of the circle you want to make.
#circle {
width: 50px;
height: 50px;
...
How to create EditText with cross(x) button at end of it?
Is there any widget like EditText which contains a cross button, or is there any property for EditText by which it is created automatically? I want the cross button to delete whatever text written in EditText .
...
Populating a ListView using an ArrayList?
My Android app needs to populate the ListView using the data from an ArrayList .
5 Answers
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