The code has been written in three files
a) main.xml
b) strings.xml
c) checkActivity.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">
<CheckBox android:id="@+id/check" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:text="@string/checkboxtest"/>
</LinearLayout>
b) strings.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">CheckBoxTest</string>
<string name="checkboxtest">Checkbox is unchecked</string>
</resources>
c) checkActivity.java
package org.example.checkbox;
import android.app.Activity;
import android.os.Bundle;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
public class checkActivity extends Activity implements OnCheckedChangeListener{
/** Called when the activity is first created. */
CheckBox cb;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
cb = (CheckBox)findViewById(R.id.check);
cb.setOnCheckedChangeListener(this);
}
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
switch (buttonView.getId()) {
case R.id.check:
if(isChecked)
{
cb.setText("Check Box is checked");
}
else
{
cb.setText(R.string.checkboxtest);
}
break;
default:
break;
}
}
}
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