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Mobile Development Articles
Page 50 of 156
How to get selected Index of the Radio group in Android?
This example demonstrates how do I get selected index of the radio group 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.View; import android.widget.Button; import android.widget.RadioButton; import android.widget.RadioGroup; import android.widget.TextView; public class MainActivity extends AppCompatActivity { TextView textView; Button button; RadioGroup radioGroup; ...
Read MoreHow to set a particular font for a button text in Android?
This example demonstrates how do I set a particular font for a button text 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.graphics.Typeface; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import static android.graphics.Typeface.BOLD_ITALIC; public class MainActivity extends AppCompatActivity { Button btnChangeFont, btnChangeFont2; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ...
Read MoreHow to pass values between Fragments in Android?
This example demonstrates how do I pass values between fragments 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.Menu; import android.view.MenuItem; public class MainActivity extends AppCompatActivity implements FragmentOne.OnFragmentInteractionListener{ @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } @Override public boolean onCreateOptionsMenu(Menu menu) { ...
Read MoreHow to prevent a dialog from closing when a button is clicked?
This example demonstrates how do I prevent a dialog from closing when a button is clicked.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.AlertDialog; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.Toast; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); final AlertDialog dialog = new ...
Read MoreWhat is difference between FillParent and wrap content in android?
This example demonstrates how do I show the difference between fillParent and wrap content 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; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } }Step 4 − Add the following code to androidManifest.xml ...
Read MoreHow to implement Android button Sheet widget?
This example demonstrates how do I implement android button sheet widget.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 build.gradle (Module:app) and add the following dependencyimplementation 'com.android.support:design:28.0.0' implementation 'com.jakewharton:butterknife:8.8.1' annotationProcessor 'com.jakewharton:butterknifecompiler:8.8.1'Step 4 − Create a layout (bottomsheet.xml) and the following code − ...
Read MoreHow to count number of characters in EditText while typing in android?
This example demonstrates how do I count number of characters in editText while typing 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.text.Editable; import android.text.TextWatcher; import android.widget.EditText; import android.widget.TextView; public class MainActivity extends AppCompatActivity { TextView textView; EditText editText; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); ...
Read MoreHow to simulate touch event with android at a given position?
This example demonstrates how do I simulate touch even with android at a given position.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.widget.Toast; public class MainActivity extends AppCompatActivity { private boolean isTouch = false; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } @Override public boolean ...
Read MoreHow to use calendar widget using the calendarView class in Android App?
This example demonstrates how do I use calendar widget using the calendarView class 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 − Add the following code to src/MainActivity.javaimport android.support.annotation.NonNull; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.widget.CalendarView; import android.widget.TextView; public class MainActivity extends AppCompatActivity { CalendarView calendar; TextView dateView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); ...
Read MoreHow to use SharedPrefernces in Android?
This example demonstrates how do I use shared preferences 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.SharedPreferences; import android.preference.PreferenceManager; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.CheckBox; import android.widget.EditText; public class MainActivity extends AppCompatActivity { SharedPreferences sharedPreferences; SharedPreferences.Editor editor; EditText name, password; Button button; CheckBox checkBox; ...
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