basic things java

https://github.com/FahdSheraz/androidOSource/blob/master/MMethods/src/com/gohooljava/com/Main.java

package com.gohooljava.com;

public class Main {

    public static void main(String[] args) {

   // write your code here
        myName("Paulo");

        int finalResult = addNums(4, 5);

        System.out.println( finalResult);


       System.out.println( fullName("George", "The Man"));

       System.out.println(showChar('D'));


    }

    //Method
     public static void myName(String mName) {

        System.out.println(mName);

     }

     // Return an integer

     public static int addNums(int a, int b) {
        int result;
        result = a + b;
      //  System.out.println(" Sum = "  + (a + b));

        return result ; // (a+b)
     }

     //Return a string

    public static String fullName(String firstName, String lastName){

        return firstName + " " + lastName;
    }

    // Return Character
    public static char showChar(char c) {
        return c;
    }



}

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basic mathematical operation

https://github.com/FahdSheraz/androidOSource/blob/master/BasicOps/src/com/gohooljava/com/Main.java

package com.gohooljava.com;

public class Main {

    public static void main(String[] args) {

        /*
           for loop
           while loop
         */

        int i = 0;

        while (i < 5) {

            System.out.println(" Counting.. " + i);
            i++;

        }

       
            // Make sure to uncomment the code in order to be able to run the program successfully :)
       
//        for (int i = 0; i < 20; i++) {
//
//           //remainder ( %)
//            if ( i % 4 == 0) {
//
//                System.out.println( i + " is a multiple of 4 ");
//
//            }
//
//
//        }






  //Basic operations
        //Addition = +
        //Subtraction "-"
        //Multiplication "*"
        //Division "/"
        //Remainder = "what remains.." 4 % 2 = 0 because 2*2 = 4 and there's not remainder
        // 4%3 = 1

       int firstNum1 = 34;
       int secondNum2 = 3;
       System.out.println("The sum is +" (firstNum1 + secondNum2)); // Always add parenthesis in order for this to work

       //Subtraction
       System.out.println("The result is +" (firstNum1 - secondNum2)); // Always add parenthesis in order for this to work

        //Multiplication
       System.out.println("The result is +" (firstNum1 * secondNum2));

        //Division
       System.out.println("The result is +" (firstNum1 / secondNum2));

        // ==== Relational Operators ===
        /*
           - == comparison, not assignment
           - != NOT equal
           - > greater than
           - < less than
           - >= Greater than or equal
           - <= Less than or equal
           ==== Logical Operators =====
            - AND ( && ) == both "sides" need to be TRUE in order for the whole expression to return true
            - OR ( || )
            - NOT ( ! )
         */
//        double firstNum = 10;
//        double secondNum = 3;
//        double result = 0;
//
//        boolean isOld = true;
//        boolean isYoung = false;
//
//
//        if ( (isOld && !isYoung) && (firstNum < secondNum)  ) {
//
//            System.out.println("Horray!!");
//
//        }else {
//
//            System.out.println("Not right!");
//
//        }

//        result = firstNum % secondNum;
//
//        // If statements
//        if (firstNum <= secondNum) {
//
//
//            System.out.println("The remainder is " + result );
//
//        }else {
//
//            System.out.println("Numbers aren't equal");
//
//        }


    }
}

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int float char double detail android

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list view android

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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"

    android:background="#2196F3"
    tools:context="com.example.viraj.listview.MainActivity">

    <ListView
        android:id="@+id/id_list"
        android:layout_width="368dp"
        android:layout_height="495dp"
        android:divider="#f41331"
        tools:layout_editor_absoluteX="8dp"
        tools:layout_editor_absoluteY="8dp" />
</android.support.constraint.ConstraintLayout>

java code 

package com.example.viraj.listview;

import android.app.Activity;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.ListView;

import android.widget.Toast;

public class MainActivity extends Activity {

    private ListView listView;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

      

  /// Get ListView object from xml

        listView = (ListView) findViewById(R.id.id_list);

        // Defined Array values to show in ListView

        String[] values1 = new String[]{"Android List View",

                "Adapter implementation",

                "Simple List View In Android",

                "Create List View Android",

                "Android Example",

                "List View Source Code",

                "List View Array Adapter",

                "Android Example List View"

        };

        // Define a new Adapter

        // First parameter - Context

        // Second parameter - Layout for the row

        // Third parameter - ID of the TextView to which the data is written

        // Forth - the Array of data

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_list_item_1, android.R.id.text1, values1);

        // Assign adapter to ListView

        listView.setAdapter(adapter);

        // ListView Item Click Listener

        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {

            @Override

            public void onItemClick(AdapterView<?> adapterView, View view, int position, long l) {

                // ListView Clicked item index

                int itemPosition = position;

                // ListView Clicked item value

                String itemValue = (String) listView.getItemAtPosition(position);

                // Show Alert

                Toast.makeText(getApplicationContext(),

                        "Position :" + itemPosition + "  ListItem : " + itemValue, Toast.LENGTH_LONG)

                        .show();

            }

        });

    }

}

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intent data passing a to b activity

activity one .java page

package com.example.viraj.intent;

import 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 = (Button) findViewById(R.id.gotobutton);
        button.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View view) {
                Intent intent = new Intent(getApplicationContext(), Secondpage.class);
                intent.putExtra("keytosend", "dat kept here to send"); 

                intent.putExtra("value",123);
                startActivity(intent);
            }
        });
    }
}

second activity page

package com.example.viraj.intent;
import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.widget.TextView;
public class Secondpage extends AppCompatActivity {
    private TextView textView;

    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_secondpage);
        textView = (TextView) findViewById(R.id.text_secondpage);
        Bundle name_bundel = getIntent().getExtras();


if (name_bundel != null) {

//ye string value ke liye he--------------------
            String name_string = name_bundel.getString("keytosend");

//ye integer type ki value ke liye he-------------------
            int intvalue=name_bundel.getInt("value");
           textView.setText("MESSAGE IS"+name_string+"values is "+intvalue);

            
        }
    }
}

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INTENT BASIC

FIRST PAGE CODE

package com.example.viraj.intent;

import 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=(Button)findViewById(R.id.gotobutton);
button.setOnClickListener(new View.OnClickListener() {
    @Override    public void onClick(View view) {
        Intent intent=new Intent(getApplicationContext(),Secondpage.class);
        startActivity(intent);
    }
});
    }
}

SECONDPAGECODE

package com.example.viraj.intent;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class Secondpage extends AppCompatActivity {

    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_secondpage);
    }
}

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Tost in Android

Tost in Android 

package com.example.viraj.tosthe;

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 {
private Button b1;
    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        b1=(Button)findViewById(R.id.id_button);
        b1.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View view) {
                Toast.makeText(getApplicationContext(),"its working",Toast.LENGTH_LONG).show();
            }
        });
    }
}

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Edit text in android

Edit text in android

package com.example.viraj.edittext;

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;

public class MainActivity extends AppCompatActivity {
private EditText e1;
private Button b1;
private TextView t1;
    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        e1=(EditText)findViewById(R.id.id_edittext);
        b1=(Button)findViewById(R.id.id_button);
        t1=(TextView)findViewById(R.id.id_textdisplay);
        b1.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View view) {
                String myname=null;
                myname=e1.getText().toString();
                t1.setText(myname);
            }
        });
    }
}

xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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="com.example.viraj.edittext.MainActivity">

    <EditText
        android:id="@+id/id_edittext"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="64dp"
        android:ems="10"
        android:hint="ENTER YOUR Name"
        android:inputType="textPersonName"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.503"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <Button
        android:id="@+id/id_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="60dp"
        android:text="Button"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/id_edittext" />

    <TextView
        android:id="@+id/id_textdisplay"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="80dp"
        android:text=""
        android:textSize="30dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/id_button" />

</android.support.constraint.ConstraintLayout>

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APP RANDOM NO EVEREST NAME

APP HIGHEST MOUNTAIN NAME

JAVA FILE

package com.example.viraj.apphighestmountain;

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.Random;

public class MainActivity extends AppCompatActivity {
private Button b1;
private TextView t1;
    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        b1=(Button)findViewById(R.id.id_button);
        t1=(TextView)findViewById(R.id.id_text_generator);
        final String [] mountain={"rone","rtwo","rthree","rfour","rfive","rsix","rseven"};
        b1.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View view) {
                Random r1=new Random();
                int randomname=r1.nextInt(mountain.length);//mountin to length is 0 to all numbert1.setText(mountain[randomname]);//example mountain[2] where 2 - rthree             }
        });
    }
}

XML FILE

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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="com.example.viraj.apphighestmountain.MainActivity">

    <Button
        android:id="@+id/id_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="100dp"
        android:text="RANDOM NAME GENERATE"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <TextView
        android:id="@+id/id_text_generator"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="116dp"
        android:text="NAME "
        android:textSize="30dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/id_button" />

</android.support.constraint.ConstraintLayout>

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string tokenizer

@is a delimiter

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free copyrighted image download source

FOR MY PERSONAL USE ONLY
• http://pixabay.com/
: • http://www.freeimages.com/
 • http://search.creativecommons.org/
 • http://photopin.com/
• http://commons.wikimedia.org/wiki/Main_Page
• http://www.stockphotosforfree.com/
• https://openclipart.org/
• https://unsplash.com/
 • http://superfamous.com/
• https://picjumbo.com/
• http://www.imcreator.com/free
 • http://www.gratisography.com/
• http://www.morguefile.com/
• http://littlevisuals.co/
• http://nos.twnsnd.co/
 • http://picography.co/
• http://getrefe.tumblr.com/
• http://jaymantri.com/
 • http://publicdomainarchive.com/
 • http://creative-commons.deviantart.com/
• http://freerangestock.com/
• http://animalphotos.info/a/
• http://carpictures.cc/cars/photo/
• http://www.clker.com/

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webview in android

1 _ main page  2 ) page create for web view

0 ) android mainfeast page  

<uses-permission android:name="android.permission.INTERNET"></uses-permission>

1) main activity page

package com.example.viraj.webview;

import android.content.Context;
import 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 {
private Button button;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        final Context context=this;
        button =(Button) findViewById(R.id.id_button);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent i=new Intent(context,webview.class);
                startActivity(i);
            }
        });
    }

}

xml file

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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="com.example.viraj.webview.MainActivity">

    <Button
        android:id="@+id/id_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="8dp"
        android:layout_marginRight="8dp"
        android:layout_marginTop="240dp"
        android:text="Button"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>

2) web view second page.java

package com.example.viraj.webview;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.webkit.WebView;

public class webview extends AppCompatActivity {

private WebView webview;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_webview);

        webview=(WebView)findViewById(R.id.webview1);

        webview.getSettings().setJavaScriptEnabled(true);

        webview.loadUrl("http://android-tutorialss.blogspot.in/2017/06/intent-implicit-and-explicit.html");

    }

}

xml file

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

<WebView 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="com.example.viraj.webview.webview"

    android:id="@+id/webview1"

    >

</WebView>

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switch in android

MAIN ACTIVITY JAVA
package com.example.viraj.aswitch;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.SwitchCompat;
import android.widget.CompoundButton;
import android.widget.Switch;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
Switch aswitch;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        aswitch=(Switch)findViewById(R.id.switch1);
        aswitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton compoundButton, boolean bviraj) {
                if (bviraj==true)
                {
                    Toast.makeText(getApplicationContext(),"THE SWITCH IS ON",Toast.LENGTH_SHORT).show();
                }
                else
                {
                    Toast.makeText(getApplicationContext(),"THE SWITCH IS Off",Toast.LENGTH_SHORT).show();
                }
            }
        });

    }
}

XML

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

<android.support.constraint.ConstraintLayout 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="com.example.viraj.aswitch.MainActivity">

    <Switch

        android:id="@+id/switch1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_marginLeft="8dp"

        android:layout_marginRight="8dp"

        android:layout_marginTop="197dp"

        android:text="Switch....."

        app:layout_constraintLeft_toLeftOf="parent"

        app:layout_constraintRight_toRightOf="parent"

        app:layout_constraintTop_toTopOf="parent" />

</android.support.constraint.ConstraintLayout>

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Datepicker dialog box in android

MAIN ACTIVITY JAVA FILE :

package com.example.viraj.date_picker_type_two;

import android.app.DatePickerDialog;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import java.util.Calendar;

import android.util.Log;
import android.view.View;
import android.widget.DatePicker;
import android.widget.TextView;
import android.app.DatePickerDialog;

public class MainActivity extends AppCompatActivity {
    private static final String TAG = "MainActivity";

    private TextView mDisplayDate;
    private DatePickerDialog.OnDateSetListener mDateSetListener;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mDisplayDate = (TextView) findViewById(R.id.tvDate);

        mDisplayDate.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Calendar cal = Calendar.getInstance();
                int year = cal.get(Calendar.YEAR);
                int month = cal.get(Calendar.MONTH);
                int day = cal.get(Calendar.DAY_OF_MONTH);

                DatePickerDialog dialog = new DatePickerDialog(
                        MainActivity.this,
                        android.R.style.Theme_Holo_Light_Dialog_MinWidth,
                        mDateSetListener,
                        year,month,day);
                dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
                dialog.show();
            }
        });

        mDateSetListener = new DatePickerDialog.OnDateSetListener() {
            @Override
            public void onDateSet(DatePicker datePicker, int year, int month, int day) {
                month = month + 1;
                Log.d(TAG, "onDateSet: mm/dd/yyy: " + month + "/" + day + "/" + year);

                String date = month + "/" + day + "/" + year;
                mDisplayDate.setText(date);
            }
        };
    }
}

XML FILE

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

<android.support.constraint.ConstraintLayout 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="com.example.viraj.date_picker_type_two.MainActivity">

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:hint="Select Date"

        android:id="@+id/tvDate"

        android:layout_marginTop="50dp"

        android:layout_centerHorizontal="true"

        android:textSize="30sp"/>

</android.support.constraint.ConstraintLayout>

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date picker in android type one

MAIN ACTIVITY  JAVA
package com.example.viraj.datepicker;


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

import android.widget.TextView;
import android.widget.DatePicker;
import android.widget.Toast;

import static android.widget.Toast.makeText;


public class MainActivity extends AppCompatActivity {



    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        final DatePicker datePicker = (DatePicker) findViewById(R.id.Datepick);
        final Button button = (Button) findViewById(R.id.set);

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Toast.makeText(MainActivity.this, datePicker.getDayOfMonth()+""+datePicker.getMonth()+""+datePicker.getYear(),Toast.LENGTH_LONG).show();
            }
        });
    }


}

XML FILE

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

<android.support.constraint.ConstraintLayout 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"

    android:layout_margin="10dp"

    tools:context="com.example.viraj.datepicker.MainActivity">

    <TextView

        android:id="@+id/text"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Select date and press set button" />

    <DatePicker

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:id="@+id/Datepick"

        android:layout_below="@+id/set"

        app:layout_constraintTop_toTopOf="parent"

        tools:layout_editor_absoluteX="8dp"

        android:layout_marginTop="-29dp" />

    <Button

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:id="@+id/set"

        android:text="Set"

        android:layout_below="@id/text"

        android:layout_marginLeft="8dp"

        app:layout_constraintLeft_toLeftOf="parent"

        android:layout_marginRight="8dp"

        app:layout_constraintRight_toRightOf="parent"

        app:layout_constraintBottom_toBottomOf="parent"

        android:layout_marginBottom="8dp" />

</android.support.constraint.ConstraintLayout>

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