Android button/Android button action/AbsoluteLayout/Positioning

This example is very similar to my previous example on button action.

Here main difference is positioning your sereen UI component using AbsoluteLayout.
By using android AbsoluteLayout we can easily make positioning.We can positioning using xml or from code.
In this example i showed both.


//my_button_interface.xml

<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
     >
 <TextView 
  android:id="@+id/myTextViev"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:layout_x="20px"
  android:layout_y="200px"
 />
    <Button 
     android:id="@+id/myButton"
  android:layout_width="100px"
  android:layout_height="50px"
  android:text="Submit" 
 />
</AbsoluteLayout>

//HelloWorldAndroid.java

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AbsoluteLayout;
import android.widget.Button;
import android.widget.TextView;

public class AndroidButton extends Activity implements OnClickListener {
 /** Called when the activity is first created. */
  
 Button btn;
 TextView tv;
  
 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.my_button_interface);
     
  btn = (Button) findViewById(R.id.myButton);
  tv = (TextView) findViewById(R.id.myTextViev);
  
  AbsoluteLayout.LayoutParams layoutParams= new
                AbsoluteLayout.LayoutParams(100,50, 200, 200);
  btn.setLayoutParams(layoutParams);
     
  tv.setText("This is sample text");
  btn.setOnClickListener(this);
 }

 @Override
 public void onClick(View v) {
  // TODO Auto-generated method stub
  if (v.getId() == R.id.myButton) {
   tv.setText("welcome to AbsoluteLayout");
  }
 }
}

output:



Before click button





After click button