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Articles by Nitya Raut
Page 9 of 16
How to read all contacts in android?
This example demonstrate about How to read all contacts 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. In the above code, we have taken list view.Step 3 − Add the following code to src/MainActivity.java import android.annotation.TargetApi; import android.content.ContentResolver; import android.content.pm.PackageManager; import android.database.Cursor; import android.os.Build; import android.os.Bundle; import android.provider.ContactsContract; import android.support.v4.app.ActivityCompat; import android.support.v7.app.AppCompatActivity; import android.widget.ArrayAdapter; import android.widget.ListView; import java.util.ArrayList; public class MainActivity extends AppCompatActivity { public static final int ...
Read MoreHow to use BIGINT(8)value in Android sqlite?
Before getting into example, we should know what sqlite data base in android is. SQLite is an open source SQL database that stores data to a text file on a device. Android comes in with built in SQLite database implementation. SQLite supports all the relational database features. In order to access this database, you don't need to establish any kind of connections for it like JDBC, ODBC etc.This example demonstrate about How to use BIGINT(8)value in Android sqlite.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create ...
Read MoreHow to create digital clock with textview in android?
This example demonstrates How to create digital clock with textview 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. In the above code, we have taken textview. It will show clock with blink animation as we see in normal digital clock.Step 3 − Add the following code to src/MainActivity.javapackage com.example.andy.myapplication; import android.os.Bundle; import android.os.Handler; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; import java.text.SimpleDateFormat; import java.util.Date; import java.util.HashMap; public ...
Read MoreHow to Use Android loader?
This example demonstrate about How to Use Android loaderStep 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. ss In the above code, we have taken listview to show contact names.Step 3 − Add the following code to src/MainActivity.java import android.Manifest; import android.content.CursorLoader; import android.content.Loader; import android.content.pm.PackageManager; import android.database.Cursor; import android.os.Bundle; import android.provider.ContactsContract; import android.support.v4.app.ActivityCompat; import android.support.v4.app.FragmentActivity; import android.support.v4.content.ContextCompat; import android.support.v4.widget.SimpleCursorAdapter; import android.widget.ListView; public class MainActivity extends FragmentActivity implements android.app.LoaderManager.LoaderCallbacks { private ...
Read MoreHow to use appbar layout in android?
This example demonstrate about How to use appbar layout 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. In the above code, we have taken app bar layout and recycler view.Step 3 − Add the following code to src/MainActivity.java import android.annotation.TargetApi; import android.app.Activity; import android.content.Intent; import android.content.SharedPreferences; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.support.v4.content.pm.ShortcutInfoCompat; import android.support.v4.content.pm.ShortcutManagerCompat; import android.support.v4.graphics.drawable.IconCompat; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.DefaultItemAnimator; ...
Read MoreHow to retrieve multiple ResultSets from a stored procedure using a JDBC program?
Stored procedures are sub routines, segment of SQL statements which are stored in SQL catalog. All the applications that can access Relational databases (Java, Python, PHP etc.), can access stored procedures.Stored procedures contain IN and OUT parameters or both. They may return result sets in case you use SELECT statements. Stored procedures can return multiple result sets.Retrieving Results from a procedure:You can call an existing stored procedure using the CallableStatement. The prepareCall() method of the Connection interface accepts the procedure call in string format and returns a callable statement object.CallableStatement cstmt = con.prepareCall("{call sampleProcedure()}");Execute the above created callable statement using ...
Read MoreHow to use Constraint Layout with recyclerview?
This example demonstrate about How to use Constraint Layout with recyclerviewStep 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. In the above code, we have taken app bar layout and recycler view.Step 3 − Add the following code to src/MainActivity.java import android.annotation.TargetApi; import android.app.Activity; import android.content.Intent; import android.content.SharedPreferences; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.support.v4.content.pm.ShortcutInfoCompat; import android.support.v4.content.pm.ShortcutManagerCompat; import android.support.v4.graphics.drawable.IconCompat; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.DefaultItemAnimator; ...
Read MoreHow to use firebase messaging in android application?
This example demonstrate How to use firebase messaging in android applicationStep 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 src/MainActivity.java import android.os.Bundle; import android.support.v4.app.FragmentActivity; public class MainActivity extends FragmentActivity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } }Step 3 − Add the following code to src/ MyFirebaseMessagingService.java import android.app.Notification; import android.app.NotificationChannel; import android.app.NotificationManager; import android.content.Context; import android.graphics.Color; import android.os.Build; import android.support.v4.app.NotificationCompat; import android.support.v4.content.ContextCompat; import android.util.Log; ...
Read MoreProper use cases for Android UserManager.isUserAGoat()?
This example demonstrate about Proper use cases for Android UserManager.isUserAGoat()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. In the above code, we have taken text view to show global variable.Step 3 − Add the following code to src/MainActivity.java import android.content.pm.PackageManager; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.TextView; public class MainActivity extends AppCompatActivity { TextView actionEvent; @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP) @Override protected void onCreate(Bundle ...
Read MoreOptimization Tips for Python Code?
Though we all know python is not as fast or efficient as other complied languages. However, there are many big companies which shows us that python code can handle much bigger workload which shows it’s not that slow. In this section, we are going to see some of the tips that one should keep in mind so that a correct python program runs even faster and more efficient.Tip 1: Go for built-in functionsThough we can write efficient code in python, but it’s very hard to beat built-in functions(which are written in C). Below image shows the list of python built-in ...
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