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Sending data back to the Main Activity in Android
... from a list or entering data in a dialog box. In this case you should use startActivityForResult to launch your child Activity.
This provides a pipeline for sending data back to the main Activity using setResult. The setResult method takes an int result value and an Intent that is passed back to t...
Check if a string contains another string
...Compare)
will give you a value of 14.
Note that you have to specify the start position in this case as stated in the specification I linked: The start argument is required if compare is specified.
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Java8 Lambdas vs Anonymous classes
...t.println("in run");
}
};
Thread t = new Thread(r);
t.start();
}
//syntax of lambda expression
public static void main(String[] args) {
Runnable r = ()->{System.out.println("in run");};
Thread t = new Thread(r);
t.start();
}
2)Scope
An anonymous inner class ...
Taking screenshot on Emulator from Android Studio
...
Starting with Android Studio 2.0 you can do it with the new emulator:
Just click 3 "Take Screenshot". Standard location is the desktop.
Or
Select "More"
Under "Settings", specify the location for your screenshot
Take your s...
Django - iterate number in for loop of a template
...
Django provides it. You can use either:
{{ forloop.counter }} index starts at 1.
{{ forloop.counter0 }} index starts at 0.
In template, you can do:
{% for item in item_list %}
{{ forloop.counter }} # starting index 1
{{ forloop.counter0 }} # starting index 0
# do your stuff
{%...
Deciding between HttpClient and WebClient
...-http-requests
This is not a direct answer I know - but you're better off starting here than ending up with new HttpClient(...) everywhere.
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Enum String Name from Value
...um.
[Code for Performance Benchmark]
Stopwatch sw = new Stopwatch (); sw.Start (); sw.Stop (); sw.Reset ();
double sum = 0;
int n = 1000;
Console.WriteLine ("\nGetName method way:");
for (int i = 0; i < n; i++) {
sw.Start ();
string t = Enum.GetName (typeof (Roles), roleValue);
sw.Stop...
How to close activity and go back to previous activity in android
I have a main activity, that when I click on a button, starts a new activity, i used the following code to do so:
18 Answer...
Split List into Sublists with LINQ
... {
done = !parent.wrapper.Get(position + parent.start, out current);
}
return !done;
}
public void Reset()
{
// per http://msdn.microsoft.com/en-us/library/system...
Java: method to get position of a match in a String?
...st) occurrence of the specified substring [searching forward (or backward) starting at the specified index].
String text = "0123hello9012hello8901hello7890";
String word = "hello";
System.out.println(text.indexOf(word)); // prints "4"
System.out.println(text.lastIndexOf(word)); // prints "22"
...