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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 More
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 More
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 More
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; ... Read More
Here we will see how to count the average of the ASCII values of each character in a given string. Suppose the string is “ABC”. The asci values are 65, 66, 67. So the average of these three is 66.AlgorithmasciiAverage(String)Begin sum := 0 for each character c in String, do sum := sum + ASCII of c done return sum/length of String EndExample Live Demo#include using namespace std; float asciiAverage(string str){ int sum = 0; for(int i = 0; i str; cout
This example demonstrates how do I progress dialog 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.ProgressDialog; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; public class MainActivity extends AppCompatActivity { ProgressDialog progressDialog; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); progressDialog = new ProgressDialog(MainActivity.this); progressDialog.setTitle("My Content"); progressDialog.setMessage("Loading this ... Read More
This example demonstrates how do I stop AsynchTask thread 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.Color; import android.os.AsyncTask; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.TextView; import java.util.ArrayList; import java.util.List; public class MainActivity extends AppCompatActivity { private Button btnDo, btnCancel; private TextView textView; private AsyncTask myTask; @Override protected ... Read More
This example demonstrates how do I do web scrapping in android application.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 – Open build.gradle(Mobule:app) and add the following dependencyimplementation 'org.jsoup:jsoup:1.11.2'Step 3 − Add the following code to res/layout/activity_main.xml. Step 4 − Add the following code to src/MainActivity.javaimport android.os.AsyncTask; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.TextView; import org.jsoup.Jsoup; import org.jsoup.nodes.Document; import java.io.IOException; public class MainActivity extends AppCompatActivity { TextView textView; Button button; @Override ... Read More
This example demonstrates how do I use JSONObject to parse JSON 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.TextView; import org.json.JSONException; import org.json.JSONObject; public class MainActivity extends AppCompatActivity { public static final String JSON_STRING="{\"Employee\":{\"Name\":\"Niyaz\", \"Salary\":56000}}"; TextView textView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ... Read More
This example demonstrates how do I XMLPullParser 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 – Right click in the res/layout and create a layout resource file(row.xml) and add the following code − Step 4 − Add the following code to src/MainActivity.javaimport android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.widget.ListAdapter; import android.widget.ListView; import android.widget.SimpleAdapter; import org.xmlpull.v1.XmlPullParser; import org.xmlpull.v1.XmlPullParserException; import org.xmlpull.v1.XmlPullParserFactory; import java.io.IOException; import java.io.InputStream; ... Read More