Mobile Development Articles - Page 52 of 156

The exception that is thrown when an application attempts to perform a networking operation on its main thread.This is only thrown for applications targeting the Honeycomb SDK or higher. Applications targeting earlier SDK versions are allowed to do networking on their main event loop threads, but it's heavily discouraged.Kindly refer the below example program to fix this exception −This example demonstrates how do I fix the android.os.NetworkOnMainThreadException.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.   ... Read More

This example demonstrates how to crop circular area from bitmap 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 com.medkart.sample; import androidx.appcompat.app.AppCompatActivity; import android.content.Context; import android.content.res.Resources; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.PorterDuff; import android.graphics.PorterDuffXfermode; import android.graphics.Rect; import android.graphics.RectF; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.ImageView; import android.widget.RelativeLayout; public class MainActivity extends AppCompatActivity ... Read More

This example demonstrates how to disable the click of home button of 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.javapackage com.medkart.sample; import androidx.appcompat.app.AppCompatActivity; import android.app.ActivityManager; import android.content.Context; import android.os.Bundle; public class MainActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {       super.onCreate(savedInstanceState);       setContentView(R.layout.activity_main);    }    @Override    protected void onPause() { ... Read More

This example demonstrates how to add a border to the top and bottom of an Android View .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/drawable/border_top_bottom.xml                                                                       Step 3  − Add the following code to res/layout/top_bottom_border_in_android_view.xml ... Read More

This example demonstrates how do I get resource name using Resource id 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.os.Bundle; import android.widget.TextView; public class MainActivity extends AppCompatActivity {    TextView textView;    @Override    protected void onCreate(Bundle savedInstanceState) {       super.onCreate(savedInstanceState);       setContentView(R.layout.activity_main);       textView = findViewById(R.id.textView);       int text ... Read More

This example demonstrates how create a table with borders 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.                                                                                         ... Read More

This example demonstrates how to Set opacity for View 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 com.example.sample; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.animation.ObjectAnimator; import android.app.Activity; import android.view.View; import android.widget.Button; import android.widget.TextView; public class MainActivity extends AppCompatActivity {    TextView txt;    Button btn;    ObjectAnimator objectanimator;    @Override    protected void onCreate(Bundle savedInstanceState) {       ... Read More

This example demonstrates how to create a Dialog Box without a title 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 com.example.sample; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; public class Dialog extends AppCompatActivity {    Button ... Read More

This example demonstrates how do I overlay two images In Android to set an ImageView.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 − Copy and paste two images which you want to overlay(Merge) in the res/drawable Then Create a drawable resource file (layer.xml) and add the following code,         Step 3 − Add the following code to src/MainActivity.javaimport androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.view.View; ... Read More

This example demonstrates how do I change the position of the dialog on Screen 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.AlertDialog; import android.content.DialogInterface; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.Gravity; public class MainActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {       super.onCreate(savedInstanceState);       setContentView(R.layout.activity_main);       AlertDialog.Builder builder = new AlertDialog.Builder(this);     ... Read More