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Mobile Development Articles
Page 42 of 156
How to make an Android status bar notification persist across phone reboot?
This example demonstrate about How to make an Android status bar notification persist across phone rebootStep 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.package app.tutorialspoint.com.notifyme ; import android.os.Bundle ; import android.support.v7.app.AppCompatActivity ; public class MainActivity extends AppCompatActivity { @Override protected void onCreate (Bundle savedInstanceState) { super .onCreate(savedInstanceState) ; setContentView(R.layout. activity_main ) ; } }Step 4 − Add ...
Read MoreHow do I change current theme at runtime in my android app?
This example demonstrates how do I change current theme at runtime in my 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.support.v7.app.AppCompatActivity; import android.os.Bundle; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setTheme(android.R.style.Theme_Black); setContentView(R.layout.activity_main); } }Step 4 − Add the following code to androidManifest.xml ...
Read MoreHow to detect long press in Android?
This example demonstrates how do I detect long Press 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.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 GestureDetector(this, new GestureListener()); ...
Read MoreHow to detect end of ScrollView in Android?
This example demonstrates how do I detect end of scrollView 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.view.MotionEvent; import android.view.View; import android.view.ViewTreeObserver; import android.webkit.WebView; import android.widget.ScrollView; import android.widget.Toast; public class MainActivity extends AppCompatActivity implements View.OnTouchListener, ViewTreeObserver.OnScrollChangedListener { ScrollView scrollView; WebView webView; @Override ...
Read MoreHow to create spinner Programmatically from array in Android?
This example demonstrates how do I create spinner programmatically from array 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.ArrayAdapter; import android.widget.Spinner; public class MainActivity extends AppCompatActivity { Spinner spinner; String colors[] = {"Red", "Blue", "White", "Yellow", "Black", "Green", "Purple", "Orange", "Grey"}; ArrayAdapter spinnerArrayAdapter; @Override protected void onCreate(Bundle ...
Read MoreHow to check grant permission at run-time in android?
This example demonstrates how do I check grant permission at un-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.Manifest; import android.content.pm.PackageManager; import android.os.Build; import android.support.annotation.NonNull; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.support.v4.app.ActivityCompat; import android.widget.Toast; public class MainActivity extends AppCompatActivity{ private static final int REQUEST_PERMISSION_CODE = 101; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); ...
Read MoreHow to use a Volley Library to parse a JSON in android App?
This example demonstrates how do I use a volley Library to parse a JSON in 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 – To create a JsonArray, go to https://myjson.com/ create your own JsonArray, for example, refer the code below.{ "employees": [ { "firstname": "Niyaz", "age": 30, "mail": "niyaz3444@gmail.com" ...
Read MoreHow to jump to the home screen of the app using a button in android?
This example demonstrates how do I jump to the home screen of the app using a button 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.Intent; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button button ...
Read MoreHow to create TextToSpeech in an android app?
This example demonstrates how do I create TextToSpeech 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.speech.tts.TextToSpeech; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.SeekBar; import java.util.Locale; public class MainActivity extends AppCompatActivity { private TextToSpeech textToSpeech; private EditText editText; private ...
Read MoreHow to send data back to the main Activity in android?
This example demonstrates how do I send data back to the main activity 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.Intent; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends AppCompatActivity { private TextView textViewResult; private EditText editTextNumber1; private EditText editTextNumber2; ...
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