Android Tutorials with Examples - Tutorial And Example

How to insert the mobile number on an android application using EditText

Number Insertion in android application: Sometimes while dealing with numbers, we don’t want to insert any string inside an number so, we premiliary define an EditText so we externally specify an EditText attribute as android:inputType=”number” After specifying this attribute in …

How to insert an email in android application in android version 8

Email Address Insertion It is used to insert email adrress from the user in the android application.The only point of difference between an EditText and an Emailtext is that EmailText consisits of attribute named as android:inputType=”textEmailAddress”. Email address consists of …

How to show image on an android application

ImageView Widget in Android What you should already KNOW? You should be familiar with: 1) Creating, building, and running apps in Android Studio 2) Basics of android widgets Explanation: Image View widget is used to insert the image into …

Android Time picker example

How to pick Time from the user in android? Write an android example to pick Time from the user and display the date to the user. Android provides controls for the user to pick a Time through a pre-defined dialog …

Android Date picker example

How to pick date from the user in Android? Write an android example to pick date from the user and display it. Android provides control for the user to pick a date through a pre-defined dialog box. Picker provides control …

ImageView Widget in Android

What you should already KNOW? You should be familiar with: 1) Creating, building, and running apps in Android Studio 2) Basics of android widgets Explanation: Image View widget is used to insert the image into an activity. Their are several …

MultiAutoComplete TextView

Multi Auto Complete is a TextView Field user-interface which is used to get multiple strings from the user. XML file:


<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity"
    android:id="@+id/layout">

    <MultiAutoCompleteTextView
        android:id="@+id/multiAutoCompleteTextView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentStart="true"
        android:layout_alignParentTop="true"
        android:layout_marginStart="47dp"
        android:layout_marginTop="136dp"
        android:text="MultiAutoCompleteTextView" />
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context=".MainActivity"

android:id="@+id/layout">

<MultiAutoCompleteTextView

android:id="@+id/multiAutoCompleteTextView"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentStart="true"

android:layout_alignParentTop="true"

android:layout_marginStart="47dp"

android:layout_marginTop="136dp"

android:text="MultiAutoCompleteTextView" />

</RelativeLayout>

This Example is developed and tested in Android Studio 3.1.4 API level 26 Java File:


package com.example.android.sampleproject; 
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter; 
import android.widget.MultiAutoCompleteTextView;

public class MainActivity extends AppCompatActivity {
    MultiAutoCompleteTextView multi;
    ArrayAdapter<String> adapter;
    String[] array={"Pulkit","Ramesh sir","Gaurav","Ankit"};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main); 
        adapter=new ArrayAdapter<>(this,android.R.layout.simple_list_item_1,array);
       
        multi=findViewById(R.id.multiAutoCompleteTextView);
        multi.setAdapter(adapter);
        multi.setThreshold(1);
        multi.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());

        }
}

package com.example.android.sampleproject;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.ArrayAdapter;

import android.widget.MultiAutoCompleteTextView;

public class MainActivity extends AppCompatActivity {

MultiAutoCompleteTextView multi;

ArrayAdapter<String> adapter;

String[] array={"Pulkit","Ramesh sir","Gaurav","Ankit"};

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

adapter=new ArrayAdapter<>(this,android.R.layout.simple_list_item_1,array);

multi=findViewById(R.id.multiAutoCompleteTextView);

multi.setAdapter(adapter);

multi.setThreshold(1);

multi.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());

}

MultiAutoComplete Example:

Button Widget in Android Tutorial

Explanation: Button is a widget under Buttons section which is used to execute specific code. Example: XML file:


<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="173dp"
        android:text="Button"
        android:textStyle="bold"/>
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context=".MainActivity">

<Button

android:id="@+id/button"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentTop="true"

android:layout_centerHorizontal="true"

android:layout_marginTop="173dp"

android:text="Button"

android:textStyle="bold"/>

</RelativeLayout>

Java File:


package com.example.android.sampleproject;

import android.graphics.Color;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

    private Button b1;
    private int i=0;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        b1=findViewById(R.id.button);

        b1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                switch (i) {
                    case 0:
                        b1.setBackgroundColor(Color.BLUE);
                        i=1;
                        break;
                    case 1:
                        b1.setBackgroundColor(Color.RED);
                        i=0;
                }
            }
        });
        {

        }
    }
}

package com.example.android.sampleproject;

import android.graphics.Color;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

public class MainActivity extends AppCompatActivity {

private Button b1;

private int i=0;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

b1=findViewById(R.id.button);

b1.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

switch (i) {

case 0:

b1.setBackgroundColor(Color.BLUE);

i=1;

break;

case 1:

b1.setBackgroundColor(Color.RED);

i=0;

}

});

{

}

Before Click: After First Click: After Second Click:

Android Toast

Android is one of the most successful operating systems available in today’s world. It is an open-source phone platform, compatible with almost all the devices. There are numerous features and operations that can be performed on android enabled devices. We …