Linear Layout Sample

This is an example code for checking the LinearLayout.

The code has been written in two files
a) main.xml
b) linearActivity.java

The code is as follows

a) main.xml



<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<RadioGroup android:id="@+id/orientation"
android:orientation="horizontal" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:padding="5px">
<RadioButton android:id="@+id/horizontal" android:text="horizontal" />
<RadioButton android:id="@+id/vertical" android:text="vertical" />
</RadioGroup>
<RadioGroup android:id="@+id/gravity" android:orientation="vertical"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:padding="5px">
<RadioButton android:id="@+id/left" android:text="left" />
<RadioButton android:id="@+id/center" android:text="center" />
<RadioButton android:id="@+id/right" android:text="right" />
</RadioGroup>
</LinearLayout>

b) linearActivity.java

package org.example.linear;


import android.app.Activity;
import android.os.Bundle;
import android.view.Gravity;
import android.widget.LinearLayout;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;


public class linearActivity extends Activity implements OnCheckedChangeListener {
/** Called when the activity is first created. */
RadioGroup orientation;
RadioGroup gravity;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
orientation=(RadioGroup)findViewById(R.id.orientation);
orientation.setOnCheckedChangeListener(this);
gravity=(RadioGroup)findViewById(R.id.gravity);
gravity.setOnCheckedChangeListener(this);
}
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
// TODO Auto-generated method stub
switch (checkedId) {
case R.id.horizontal:
orientation.setOrientation(LinearLayout.HORIZONTAL);
break;
case R.id.vertical:
orientation.setOrientation(LinearLayout.VERTICAL);
break;
case R.id.left:
gravity.setGravity(Gravity.LEFT);
break;
case R.id.center:
gravity.setGravity(Gravity.CENTER_HORIZONTAL);
break;
case R.id.right:
gravity.setGravity(Gravity.RIGHT);
break;
}
}
}