By Syed Owais Chishti
E-Lab

JAVA CODE

package com.example.user.doorlock;
import android.content.Intent;
import android.net.Uri;
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
implements View.OnClickListener{
EditText editText;
TextView txtview;
Button button1;
Button button2;
@Override
public String toString() {
return "MainActivity{" +
"txtview2=" + txtview +
'}';
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button1 = (Button)findViewById(R.id.btn1);
button2 = (Button)findViewById(R.id.btn2);
editText = (EditText)findViewById(R.id.txt1);
button1.setOnClickListener(this);
button2.setOnClickListener(this);
}
@Override
public void onClick(View view) {
if(view.getId()==R.id.btn2) {
txtview.setText("Door Locked");
startActivity( new Intent(
Intent.ACTION_VIEW, Uri.parse("http://
url.gpio.php_pin[1]*switch[0]")));
}
if(view.getId()==R.id.btn1) {
txtview.setText("Door Unlocked");
startActivity( new Intent(
Intent.ACTION_VIEW, Uri.parse("http://
url.gpio.php_pin[1]*switch[1]")));
}
}
}

XML CODE

xml <version> 1.0 encoding utf
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.user.doorlock.MainActivity
EditText
android:id @ id txt1
android:layout_width 0dp
android:layout_height wrap_content
android:ems 10
android:inputType textPersonName
app:layout_constraintTop_toTopOf parent
android:layout_marginTop 8dp
app:layout_constraintBottom_toBottomOf parent
android:layout_marginBottom 8dp
android:layout_marginLeft 8dp
app:layout_constraintLeft_toLeftOf parent
android:layout_marginRight 8dp
app:layout_constraintRight_toRightOf parent
app:layout_constraintHorizontal_bias 0.503
app:layout_constraintVertical_bias 0.017
android:hint Enter your IP here
android:layout_marginStart 8dp
android:layout_marginEnd 8dp
Button
android:id @ id btn1
android:layout_width wrap_content
android:layout_height wrap_content
android:text Enter
tools:layout_editor_absoluteX 16dp
tools:layout_editor_absoluteY 79dp
Button
android:id @ id btn2
android:layout_width 368dp
android:layout_height wrap_content
android:text Unlock the Door
tools:layout_editor_absoluteX 8dp
tools:layout_editor_absoluteY 170dp
android:textColor #012dda
android:textSize 40sp
TextView
android:id @ id txt2
android:layout_width 368dp
android:layout_height wrap_content
android:hint"Door Status"
tools:layout_editor_absoluteX 8dp
tools:layout_editor_absoluteY 362dp
android:textSize 30sp
android:textAlignment center
android.support.constraint.ConstraintLayout