Tutorial by Examples: u

Multiple fields can be specified for the ORDER BY clause, in either ASCending or DESCending order. For example, using the http://stackoverflow.com/documentation/sql/280/example-databases/1207/item-sales-table#t=201607211314066434211 table, we can return a query that sorts by SaleDate in ascending o...

1 - Include the CoreLocation.framework in your project; this is accomplished by clicking on: root directory -> build phases -> Link Binary With Libraries Click on the (+) button, look for CoreLocation.framework and click add. 2- Modify the info.plist file to ask for permission to use user...

Repeated Timer event Swift class ViewController: UIViewController { var timer = NSTimer() override func viewDidLoad() { NSTimer.scheduledTimerWithTimeInterval(1.0, target: self, selector: Selector(self.timerMethod()), userInfo: nil, repeats: true) } func tim...

All parameters specified after the first asterisk in the function signature are keyword-only. def f(*a, b): pass f(1, 2, 3) # TypeError: f() missing 1 required keyword-only argument: 'b' In Python 3 it's possible to put a single asterisk in the function signature to ensure that the rema...

Detailed instructions on getting windows-phone-8 set up or installed.

In this example, a private static instance of the class is declared at its beginning. The value of a static field is shared between instances, so if a new instance of this class gets created the if will find a reference to the first Singleton object, destroying the new instance (or its game object)...

import std.stdio; bool isPrime(int number) { foreach(i; 2..number) { if (number % i == 0) { return false; } } return true; } void main() { writeln(2.isPrime); writeln(3.isPrime); writeln(4.isPrime); 5.isPrime.writeln; } ...

On calling, an application chooser dialog will appear and by selecting an application you can share your content with it. For calling use this line of code in your program class: share(context, "This is a test message", "Test Subject") Function's definition: public static v...

Notice, that in order to change file prmissions, your device need to be rooted, su binary doesn't come with factory shipped devices! Convention: adb shell su -c "chmod <numeric-permisson> <file>" Numeric permission constructed from user, group and world sections. For exa...

add permission in your manifest file <uses-permission android:name="android.permission.BLUETOOTH" /> In your Fragment(or Activity) Add the receiver method private BroadcastReceiver mBluetoothStatusChangedReceiver = new BroadcastReceiver() { @Override public void o...

Headings can be used to describe the topic they precede and they are defined with the <h1> to <h6> tags. Headings support all the global attributes. <h1> defines the most important heading. <h6> defines the least important heading. Defining a heading: <h1>Headin...

Once you have setup the Retrofit environment in your project, you can use the following example that demonstrates how to upload multiple files using Retrofit: private void mulipleFileUploadFile(Uri[] fileUri) { OkHttpClient okHttpClient = new OkHttpClient(); OkHttpClient clientWith30sTime...

The Java Native Interface (JNI) allows you to call native functions from Java code, and vice versa. This example shows how to load and call a native function via JNI, it does not go into accessing Java methods and fields from native code using JNI functions. Suppose you have a native library named ...

You can add a "Browse Our Other Apps" button in your app, listing all your(publisher) applications in the Google Play Store app. String urlApp = "market://search?q=pub:Google+Inc."; String urlWeb = "http://play.google.com/store/search?q=pub:Google+Inc."; try { I...

In Java, it's too "easy" to create many String instances which are not needed. That and other reasons might cause your program to have lots of Strings that the GC is busy cleaning up. Some ways you might be creating String instances: myString += "foo"; Or worse, in a loop or...

Here's the utility class: public class SharedPreferencesCompat { public static void putStringSet(SharedPreferences.Editor editor, String key, Set<String> values) { if (Build.VERSION.SDK_INT >= 11) { while (true) { try { ...

put this code inside your ViewHolder note: In this code I am using btnExpand click-event, for whole recyclerview click event you can set listener to itemView object. public class MyViewHolder extends RecyclerView.ViewHolder{ CardView cv; TextView recordName, visibleFile, date, t...

The Preview pane displays default values for data binding expressions if provided. For example : android:layout_height="@{@dimen/main_layout_height, default=wrap_content}" It will take wrap_content while designing and will act as a wrap_content in preview pane. Another example i...

Key is a field in a table which uniquely identifies each row/record in a database table. Use this attribute to override the default Code-First convention. If applied to a property, it will be used as the primary key column for this class. using System.ComponentModel.DataAnnotations; public clas...

The alert method displays a visual alert box on screen. The alert method parameter is displayed to the user in plain text: window.alert(message); Because window is the global object, you can call also use the following shorthand: alert(message); So what does window.alert() do? Well, let's ta...