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Mobile Development Articles
Page 37 of 156
How to bring an activity to foreground i.e. top of stack in Android?
This example demonstrates how do I bring an activity to the foreground (top of stack) 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 androidx.appcompat.app.AppCompatActivity; import android.content.Intent; import android.os.Bundle; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Intent i = new Intent(this, MyActivity.class); i.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT); ...
Read MoreHow to check whether a headset is plugged into an Android device?
This example demonstrates how do I check whether a headset is plugged into an 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 androidx.appcompat.app.AppCompatActivity; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.os.Bundle; import android.widget.Toast; public class MainActivity extends AppCompatActivity { BroadcastReceiver broadcastReceiver; boolean Microphone_Plugged_in = false; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); ...
Read MoreHow to create directory programmatically in Android?
This example demonstrates how to create directory programmatically in AndroidStep 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.javapackage com.app.sample; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import java.io.File; import android.os.Bundle; import android.os.Environment; import android.app.Activity; import android.view.Menu; import android.widget.Toast; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); File file = new ...
Read MoreThe simplest way to get the user's current location on Android
This example demonstrates how do I get the user’s current location on android in the simplest way.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 dependency in Gradleimplementation 'com.google.android.gms:play-services-location:17.0.0'Step 4 − Add the following code to src/MainActivity.javaimport androidx.annotation.NonNull; import androidx.appcompat.app.AppCompatActivity; import androidx.core.app.ActivityCompat; import androidx.core.content.ContextCompat; import android.Manifest; import android.content.Intent; import android.content.pm.PackageManager; import android.location.Geocoder; import android.location.Location; import android.os.Bundle; import android.os.Handler; import android.os.ResultReceiver; import android.util.Log; import android.widget.TextView; import android.widget.Toast; ...
Read MoreHow to use SpeechRecognizer API in Android App?
This example demonstrates how do I SpeechRecognizer API 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.javapackage app.com.sample; import androidx.appcompat.app.AppCompatActivity; import android.content.Intent; import android.os.Bundle; import android.speech.RecognizerIntent; import android.widget.TextView; import java.util.List; public class MainActivity extends AppCompatActivity { private final int REQUEST_SPEECH_RECOGNIZER = 3000; private TextView textView; private final String mQuestion = "Which company is the largest online retailer on the planet?"; ...
Read MoreHow to work with Picasso in Android
This example demonstrates how to work with PicassoStep 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.javapackage app.com.sample; import androidx.appcompat.app.AppCompatActivity; import android.graphics.Bitmap; import android.graphics.drawable.Drawable; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.ImageView; import android.widget.Toast; import com.squareup.picasso.Callback; import com.squareup.picasso.Picasso; import com.squareup.picasso.Target; public class MainActivity extends AppCompatActivity implements View.OnClickListener { ImageView imageView; int i ...
Read MoreHow to work with Glide in Android
This example demonstrates how to work with GlideStep 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.javapackage app.com.sample; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.ImageView; import com.bumptech.glide.Glide; import com.bumptech.glide.request.RequestOptions; public class MainActivity extends AppCompatActivity implements View.OnClickListener { ImageView imageView; Button btnDrawableImage, btnUrlImage, btnErrorImage, btnPlaceholderImage, btnResizeImage, btnRotateImage; @Override protected void onCreate(Bundle savedInstanceState) { ...
Read MoreHow to add table rows Dynamically in Android Layout?
This example demonstrates how to add table rows Dynamically in Android Layout.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.javapackage com.app.sample; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.app.ProgressDialog; import android.graphics.Color; import android.os.AsyncTask; import android.os.Bundle; import android.util.TypedValue; import android.view.Gravity; import android.view.View; import android.widget.FrameLayout; import android.widget.LinearLayout; import android.widget.TableLayout; import android.widget.TableRow; import android.widget.TextView; import java.math.BigDecimal; import java.text.DecimalFormat; import java.text.SimpleDateFormat; public class MainActivity extends AppCompatActivity { ...
Read MoreHow to set an alert in Android to fire at given date and time?
This example demonstrates how to do I an alert in Android to fire at a given 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.javapackage app.com.sample; import androidx.appcompat.app.AppCompatActivity; import androidx.fragment.app.DialogFragment; import android.app.AlarmManager; import android.app.PendingIntent; import android.app.TimePickerDialog; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.widget.TimePicker; import java.text.DateFormat; import java.util.Calendar; import java.util.Objects; public class MainActivity extends AppCompatActivity implements TimePickerDialog.OnTimeSetListener{ String timeText; ...
Read MoreAndroid GPS, Location Manager tutorial
This example demonstrates how to access Android GPS, Location ManagerStep 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.javapackage app.com.sample; import androidx.annotation.NonNull; import androidx.appcompat.app.AppCompatActivity; import androidx.core.app.ActivityCompat; import android.Manifest; import android.annotation.SuppressLint; import android.app.Activity; import android.content.Intent; import android.content.IntentSender; import android.content.pm.PackageManager; import android.location.Location; import android.net.Uri; import android.os.Bundle; import android.os.Looper; import android.provider.Settings; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.TextView; import android.widget.Toast; import com.google.android.gms.common.api.ApiException; ...
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