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Android Articles
Page 41 of 125
How to create a gridView layout in an Android app?
This example demonstrates how do I gridView layout 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 – Open build.gradle(Module: app) and add the following dependency −implementation 'com.android.support:gridlayout-v7:28.0.0'Step 4 − Add the following code to src/MainActivity.javaimport android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.AdapterView; import android.widget.GridView; import android.widget.Toast; public class MainActivity extends AppCompatActivity { GridView gridView; String[] numberInWords = {"One", "Two", "Three", "Four", "Five", "Six", "Seven", ...
Read MoreHow to parse JSONArray in Android app?
This example demonstrates how do I parse JSONArray 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.v7.app.AppCompatActivity; import android.os.Bundle; import android.widget.TextView; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; 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); ...
Read MoreHow to hide soft KeyBoard on android after clicking outside edittext?
This example demonstrates how do I hide soft keyboard on android after clicking outside edittext.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.Context; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.view.inputmethod.InputMethodManager; import android.widget.EditText; import android.widget.TextView; public class MainActivity extends AppCompatActivity { EditText editText; TextView textView; @Override protected void onCreate(Bundle savedInstanceState) { ...
Read MoreHow to add custom adapter for my listView on Android?
This example demonstrates how do I add custom adapter for my listView 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.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.widget.ListView; import java.util.ArrayList; public class MainActivity extends AppCompatActivity { ListView listView; ArrayList arrayList = new ArrayList(); MyAdapter adapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ...
Read MoreHow to find Serial number of Android device?
This example demonstrates how do I find serial number 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.javaimport android.Manifest; import android.app.AlertDialog; import android.content.pm.PackageManager; import android.support.v4.content.ContextCompat; import android.os.Build; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.telephony.TelephonyManager; import android.view.View; import android.widget.Toast; public class MainActivity extends AppCompatActivity { public static final int REQUEST_CODE_PHONE_STATE_READ = 100; private int checkedPermission = PackageManager.PERMISSION_DENIED; TelephonyManager ...
Read MoreHow to draw text on Image in Android?
This example demonstrates how do I draw text on imagein 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.Color; import android.support.v7.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.text); textView.setText("This ...
Read MoreHow to run an Android service always in background?
This example demonstrates how do I run an android service always in background.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 – Right click on the project, Select New >> Service >> Service and add the following to MyServices.javapackage app.com.sample; import android.app.Service; import android.content.Intent; import android.os.IBinder; import android.widget.Toast; public class MyService extends Service { public MyService() { } @Override public int onStartCommand(Intent intent, int flags, int ...
Read MoreHow to show soft Keyboard based on Android EditText is focused?
This example demonstrates how do I show soft keyboard based on Android EditText is focused.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.Context; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.view.inputmethod.InputMethodManager; import android.widget.EditText; public class MainActivity extends AppCompatActivity { EditText editText; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); editText ...
Read MoreHow to register a BroadcastReceiver programmatically in Android?
This example demonstrates how do I register a BroadcastReceiver programtically 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.IntentFilter; import android.net.ConnectivityManager; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; public class MainActivity extends AppCompatActivity { ExampleBroadcastReceiver exampleBroadcastReceiver = new ExampleBroadcastReceiver(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } protected void onStart(){ ...
Read MoreHow to use size() in android ConcurrentLinkedDeque?
Before getting into the example, we should know what ConcurrentLinkedDeque is, it is unbounded deque based on linked nodes. Multiple threads can access deque elements with safety.This example demonstrates about How to use size() in android ConcurrentLinkedDequeStep 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 a text view to show ConcurrentLinkedDeque elements.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.os.Build; import android.os.Bundle; ...
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