This example demonstrates how do I register a BroadcastReceiver programtically in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml.     Step 3 − Add the following code to src/MainActivity.javaimport android.content.IntentFilter; import android.net.ConnectivityManager; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; public class MainActivity extends AppCompatActivity {    ExampleBroadcastReceiver exampleBroadcastReceiver = new ExampleBroadcastReceiver();    @Override    protected void onCreate(Bundle savedInstanceState) {       super.onCreate(savedInstanceState);       setContentView(R.layout.activity_main);    }    protected void onStart(){     ... Read More

This example demonstrates how do I display toast messages from a thread in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. Step 3 − Add the following code to src/MainActivity.javaimport android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.widget.Toast; public class MainActivity extends AppCompatActivity {    Toast toast;    Thread thread;    @Override    protected void onCreate(Bundle savedInstanceState) {       super.onCreate(savedInstanceState);       setContentView(R.layout.activity_main);       toast = Toast.makeText(this, "This is a toast ... Read More

This example demonstrates how do I set the part of the Android textView as clickable.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml.     Step 3 − Add the following code to src/MainActivity.javaimport android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.text.SpannableString; import android.text.Spanned; import android.text.method.LinkMovementMethod; import android.text.style.ClickableSpan; import android.view.View; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends AppCompatActivity {    TextView textView;    @Override    protected void onCreate(Bundle savedInstanceState) {       super.onCreate(savedInstanceState);     ... Read More

This example demonstrates how do I format date and time in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml.     Step 3 − Add the following code to src/MainActivity.javaimport android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.widget.TextView; import java.text.SimpleDateFormat; import java.util.Calendar; public class MainActivity extends AppCompatActivity {    TextView textView;    String dateTime;    @Override    protected void onCreate(Bundle savedInstanceState) {       super.onCreate(savedInstanceState);       setContentView(R.layout.activity_main);       textView = findViewById(R.id.textView); ... Read More

This example demonstrates how do I get screen DPI programatically in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml.         Step 3 − Add the following code to src/MainActivity.javaimport android.app.Activity; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.util.DisplayMetrics; import android.view.View; import android.widget.Button; import android.widget.TextView; public class MainActivity extends AppCompatActivity {    Button button;    TextView textview;    float value = 0;    DisplayMetrics displaymetrics;    Activity activity;    @Override    protected void ... Read More

This example demonstrates how do I customize a button to set text and color in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml.        Step 3 − Add the following code to src/MainActivity.javaimport android.graphics.Color; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.widget.Button; public class MainActivity extends AppCompatActivity {    Button button;    @Override    protected void onCreate(Bundle savedInstanceState) {       super.onCreate(savedInstanceState);       setContentView(R.layout.activity_main);       button = findViewById(R.id.customBtn); ... Read More

This example demonstrates how do I programmatically turn on wifi in android device.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml.         Step 3 − Add the following code to src/MainActivity.javaimport android.content.Context; import android.net.wifi.WifiManager; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Toast; public class MainActivity extends AppCompatActivity {    private WifiManager wifiManager;    @Override    protected void onCreate(Bundle savedInstanceState) {       super.onCreate(savedInstanceState);       setContentView(R.layout.activity_main);       ... Read More

There are numerous application which either runs on Portrait mode or in Landscape mode.Restricting the application in one of the mode is important to achieve this.In this post we will see how to restrict the orientation or disable the orientation to one mode.If you want the application to be running only in Portrait mode, Below your viewDidLoad method copy the below line of codeoverride var supportedInterfaceOrientations: UIInterfaceOrientationMask {    get {       return .portrait    } }This will lock the landscape mode for your application. Similarly by replacing .portrait to .landscape will run your application in landscape mode.If ... Read More

Working with date and time can be tricky, I’ve seen new programmers struggling with date and time. In almost all the application you will be required to get the date and multiple operations are dependent on it.Here we will be seeing how to get the current date and time in swift.In this post we will be seeing how to get the current time and UTC time.For getting the UTC time, paste below code in playground.let utcDate = Date() print(utcDate)If you wish to get the time stamp of your location, paste the below code in playground.let dateObj = Date() let datetformatter ... Read More

Getting difference between two dates is easy. You should know how to play between the dates.We will be using DateFormatter class for formatting the dates.Instances of DateFormatter create string representations of  NSDate objects, and convert textual representations of dates and times into  NSDate objects.You can read more about it here https://developer.apple.com/documentation/foundation/dateformatterWe will also be using Calendar structure, apple has provided beautiful documentation of it,  https://developer.apple.com/documentation/foundation/calendarSo let’s get started.Open Xcode, New Playground.Copy the below codeimport UIKit // create object of DateFormatter and Calendar let formatter = DateFormatter() let calendar = Calendar.current // specify the format, formatter.dateFormat = "dd-MM-yyyy" // specify the start ... Read More