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Articles on Trending Technologies
Technical articles with clear explanations and examples
How to get fling gesture detection working in an android app?
This example demonstrates how do I get fling gesture detection working in an android app.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.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.view.GestureDetector; import android.view.MotionEvent; import android.widget.Toast; public class MainActivity extends AppCompatActivity { GestureDetector gestureDetector; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); gestureDetector = new ...
Read MoreHow to obtain the phone number of the android phone programmatically?
This example demonstrates how do I obtain the phone number of the android phone programmatically.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.Manifest; import android.content.Context; import android.content.pm.PackageManager; import android.support.annotation.NonNull; import android.support.v4.app.ActivityCompat; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.telephony.TelephonyManager; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends AppCompatActivity { TextView textView; private static final int REQUEST_CODE = 101; @Override protected ...
Read MoreHow to get Spinner Value in android?
This example demonstrates how do I get spinner value 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 – Open res/values/strings.xml and add the following code Sample crane Cuckoo Pigeon Pigeon Eagle Owl Vulture WoodPecker ...
Read MoreHow to create clickable links in a textView on Android?
This example demonstrates how do I create clickable links in a textView on 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 – Open res/values/strings.xml and add the following code − Sample Tap here to open Link Step 4 − Add the following code to src/MainActivity.javapackage app.com.sample; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.text.method.LinkMovementMethod; import android.widget.TextView; public class MainActivity extends AppCompatActivity { TextView textView; ...
Read MoreWhile chaining, can we throw unchecked exception from a checked exception in java?
When an exception is cached in a catch block, you can re-throw it using the throw keyword (which is used to throw the exception objects).While re-throwing exceptions you can throw the same exception as it is with out adjusting it as −try { int result = (arr[a])/(arr[b]); System.out.println("Result of "+arr[a]+"/"+arr[b]+": "+result); }catch(ArithmeticException e) { throw e; }Or, wrap it within a new exception and throw it. When you wrap a cached exception within another exception and throw it, it is known as exception chaining or, exception wrapping, by doing this you can adjust your exception, throwing higher ...
Read MoreDynamically add elements in ListView in android?
This example demonstrates how do I dynamically add elements in ListView 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 java.util.ArrayList; import java.util.Arrays; import java.util.List; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.EditText; import android.widget.ListView; public class MainActivity extends Activity { ListView listview; Button addButton; ...
Read MoreHow to add footer in Android ListView?
This example demonstrates how do I add footer in Android ListView.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 – Create a layout file.xml and name it as listView_footer.xml and add the following code − Step 4 − Add the following code to src/MainActivity.javaimport java.util.ArrayList; import java.util.Arrays; import java.util.List; import android.app.Activity; import android.os.Bundle; import android.view.LayoutInflater; import android.view.ViewGroup; import android.widget.ArrayAdapter; import ...
Read MoreHow can I send emails using gmail from my Android application?
This example demonstrates how do I send emails using gmail from my Android application.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.Intent; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; public class MainActivity extends AppCompatActivity{ EditText editTextMail, editTextSubject, ...
Read MoreHow to create a User Menu in PowerShell?
When you are writing a script and if you want to provide the user to select one option among multiple values and based on it to execute the command, we can generally use the Switch command and for it, we will ask the user choice in the below script.There is another .Net method to create a user menu, we will see it after the example from the description mentioned above.a. Switch command methodFor the Switch command-based user selection, we will first display the message for the user and then give him a choice for the selection through Read-Host command as ...
Read MoreHow to turn on Flash light programmatically in android?
This example demonstrates how do I turn on Flash light 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.content.Context; import android.content.DialogInterface; import android.content.pm.PackageManager; import android.hardware.camera2.CameraAccessException; import android.hardware.camera2.CameraManager; import android.os.Bundle; import android.support.v7.app.AlertDialog; import android.support.v7.app.AppCompatActivity; import android.widget.CompoundButton; import android.widget.ToggleButton; public class MainActivity extends AppCompatActivity { private CameraManager mCameraManager; private String mCameraId; private ToggleButton toggleButton; ...
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