Androidandme.com has this story on how much a developer is making from his Android Task Manager app. Right now, about $10,000 a month. Wow! Sounds pretty awesome to me. 
Looks like the old Netscape campus is getting turned over to another company (Symantec). I am sure things haven't been like the were for some time. But as a Netscape Alumni, it still makes me sad.
Had to do a little research on setting up basic authentication on Glassfish v3. Here are the two best articles I ran across on the subject.
<?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"
>
<TextView
android:id="@+id/widgettext"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textColor="#000000"
/>
</LinearLayout>
package com.exercise.HelloWidget;
import java.text.SimpleDateFormat;
import java.util.Date;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.Context;
import android.widget.RemoteViews;
import android.widget.Toast;
public class HelloWidgetProvider extends AppWidgetProvider {
private SimpleDateFormat formatter = new SimpleDateFormat("dd MMM yyyy hh:mm:ss a");
String strWidgetText = "";
@Override
public void onDeleted(Context context, int[] appWidgetIds) {
// TODO Auto-generated method stub
//super.onDeleted(context, appWidgetIds);
Toast.makeText(context, "onDeleted()", Toast.LENGTH_LONG).show();
}
@Override
public void onDisabled(Context context) {
// TODO Auto-generated method stub
//super.onDisabled(context);
Toast.makeText(context, "onDisabled()", Toast.LENGTH_LONG).show();
}
@Override
public void onEnabled(Context context) {
// TODO Auto-generated method stub
//super.onEnabled(context);
Toast.makeText(context, "onEnabled()", Toast.LENGTH_LONG).show();
}
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
// TODO Auto-generated method stub
String currentTime = formatter.format(new Date());
strWidgetText = strWidgetText + "\n" + currentTime;
RemoteViews updateViews = new RemoteViews(context.getPackageName(), R.layout.hellowidget_layout);
updateViews.setTextViewText(R.id.widgettext, strWidgetText);
appWidgetManager.updateAppWidget(appWidgetIds, updateViews);
super.onUpdate(context, appWidgetManager, appWidgetIds);
Toast.makeText(context, "onUpdate()", Toast.LENGTH_LONG).show();
}
}
super.onUpdate(context, appWidgetManager, appWidgetIds);
Download the files.
Well kids, today I learned about marshalling. No, not the old west kind where you put on a six gun and clean up the streets, the XML kind. 
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.exercise.HelloWidget"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".HelloWidget"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="HelloWidgetProvider" >
<intent-filter>
<action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
</intent-filter>
<meta-data android:name="android.appwidget.provider"
android:resource="@xml/hellowidgetproviderinfo" />
</receiver>
</application>
<uses-sdk android:minSdkVersion="4" />
</manifest>
<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
android:minWidth="146dp"
android:minHeight="72dp"
android:updatePeriodMillis="10000"
android:initialLayout="@layout/hellowidget_layout"
>
</appwidget-provider>
<?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"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
</LinearLayout>
package com.exercise.HelloWidget;
import android.appwidget.AppWidgetProvider;
public class HelloWidgetProvider extends AppWidgetProvider {
}
package com.exercise.AndroidHorizontal;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.view.View;
public class HorizontalView extends View {
private float pitch = 0, roll = 0;
private Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
private boolean firstDraw;
final float radiusPt = (float)3;
public HorizontalView(Context context) {
super(context);
// TODO Auto-generated constructor stub
init();
}
public HorizontalView(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
init();
}
public HorizontalView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
// TODO Auto-generated constructor stub
init();
}
private void init(){
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeWidth(3);
paint.setColor(Color.WHITE);
paint.setTextSize(20);
firstDraw = true;
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
// TODO Auto-generated method stub
setMeasuredDimension(MeasureSpec.getSize(widthMeasureSpec), MeasureSpec.getSize(heightMeasureSpec));
}
@Override
protected void onDraw(Canvas canvas) {
// TODO Auto-generated method stub
int cxPlan = getMeasuredWidth()/2;
int cyPlan = getMeasuredHeight()/2;
float fullLength, halfLength, ptPerDegree;
if(cxPlan > cyPlan){
fullLength = (float)(getMeasuredHeight() * 0.9);
}
else{
fullLength = (float)(getMeasuredWidth() * 0.9);
}
halfLength = fullLength/2;
ptPerDegree = fullLength/360;
canvas.drawRect(cxPlan-halfLength, cyPlan-halfLength,
cxPlan+halfLength, cyPlan+halfLength, paint);
canvas.drawRect(0, 0, getMeasuredWidth(), getMeasuredHeight(), paint);
if(!firstDraw){
float yPt = cyPlan + (pitch * ptPerDegree);
float xPt = cxPlan + (roll * ptPerDegree);
canvas.drawCircle(xPt, yPt, radiusPt, paint);
}
}
public void updateHorizontal(float tPitch, float tRoll)
{
firstDraw = false;
pitch = tPitch;
roll = tRoll;
invalidate();
}
}
<?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"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<TextView
android:id="@+id/textpitch"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<TextView
android:id="@+id/textroll"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<view
class="com.exercise.AndroidHorizontal.HorizontalView"
android:id="@+id/myhorizontalview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
</LinearLayout>
package com.exercise.AndroidHorizontal;
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Toast;
public class AndroidHorizontal extends Activity {
private static SensorManager mySensorManager;
private boolean sersorrunning;
private HorizontalView myHorizontalView;
private TextView textviewPitch, textviewRoll;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
myHorizontalView = (HorizontalView)findViewById(R.id.myhorizontalview);
textviewPitch = (TextView)findViewById(R.id.textpitch);
textviewRoll = (TextView)findViewById(R.id.textroll);
mySensorManager = (SensorManager)getSystemService(Context.SENSOR_SERVICE);
List<Sensor> mySensors = mySensorManager.getSensorList(Sensor.TYPE_ORIENTATION);
if(mySensors.size() > 0){
mySensorManager.registerListener(mySensorEventListener, mySensors.get(0), SensorManager.SENSOR_DELAY_NORMAL);
sersorrunning = true;
Toast.makeText(this, "Start ORIENTATION Sensor", Toast.LENGTH_LONG).show();
}
else{
Toast.makeText(this, "No ORIENTATION Sensor", Toast.LENGTH_LONG).show();
sersorrunning = false;
finish();
}
}
private SensorEventListener mySensorEventListener = new SensorEventListener(){
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
// TODO Auto-generated method stub
}
@Override
public void onSensorChanged(SensorEvent event) {
// TODO Auto-generated method stub
textviewPitch.setText("Pitch: " + String.valueOf(event.values[1]));
textviewRoll.setText("Roll: " + String.valueOf(event.values[2]));
myHorizontalView.updateHorizontal(
(float)event.values[1], (float)event.values[2]);
}
};
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
if(sersorrunning){
mySensorManager.unregisterListener(mySensorEventListener);
}
}
}
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string-array name="listDisplayWord">
<item>Option 1</item>
<item>Option 2</item>
<item>Option 3</item>
</string-array>
<string-array name="listReturnValue">
<item>1 is selected</item>
<item>2 is selected</item>
<item>3 is selected</item>
</string-array>
</resources><?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
<ListPreference
android:title="List Preference"
android:summary="Select the option of the list"
android:key="listPref"
android:entries="@array/listDisplayWord"
android:entryValues="@array/listReturnValue" />
</PreferenceScreen>package com.exercise.AndroidListPreference;
import com.exercise.AndroidListPreference.R;
import android.os.Bundle;
import android.preference.PreferenceActivity;
public class SetPreferences extends PreferenceActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.preferences);
}
}<?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"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Preferences:"
/>
<TextView
android:id="@+id/list_pref"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<Button
android:id="@+id/setpreference"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Set Preference"
/>
</LinearLayout>package com.exercise.AndroidListPreference;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class AndroidListPreference extends Activity {
TextView myListPref;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
myListPref = (TextView)findViewById(R.id.list_pref);
Button buttonSetPreference = (Button)findViewById(R.id.setpreference);
buttonSetPreference.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
startActivity(new Intent(AndroidListPreference.this, SetPreferences.class));
}});
}
@Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
Toast.makeText(this, "onResume", Toast.LENGTH_LONG).show();
SharedPreferences myPreference=PreferenceManager.getDefaultSharedPreferences(this);
String myListPreference = myPreference.getString("listPref", "default choice");
myListPref.setText(myListPreference);
}
}<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.exercise.AndroidListPreference"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".AndroidListPreference"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".SetPreferences" />
</application>
<uses-sdk android:minSdkVersion="4" />
</manifest>
//i is the int to be converted
byte[] data = {(byte) i};
CharSequence strSymbol = EncodingUtils.getAsciiString(data);
//i is the int to be converted
byte[] data = {(byte) i};
CharSequence strSymbol = EncodingUtils.getString(data, "windows-1252");
private void openOptionsMySiteDialog()
{
final SpannableString stMyWeb = new SpannableString("http://android-er.blogspot.com/");
Linkify.addLinks(stMyWeb, Linkify.ALL);
final AlertDialog aboutDialog = new AlertDialog.Builder(MyActivity.this)
.setMessage(stMyWeb)
.setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}})
.create();
aboutDialog.show();
((TextView)aboutDialog.findViewById(android.R.id.message))
.setMovementMethod(LinkMovementMethod.getInstance());
}
package com.exercise.AndroidCompass;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.view.View;
public class MyCompassView extends View {
private float direction = 0;
private Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
private boolean firstDraw;
public MyCompassView(Context context) {
super(context);
// TODO Auto-generated constructor stub
init();
}
public MyCompassView(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
init();
}
public MyCompassView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
// TODO Auto-generated constructor stub
init();
}
private void init(){
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeWidth(3);
paint.setColor(Color.WHITE);
paint.setTextSize(30);
firstDraw = true;
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
// TODO Auto-generated method stub
setMeasuredDimension(MeasureSpec.getSize(widthMeasureSpec), MeasureSpec.getSize(heightMeasureSpec));
}
@Override
protected void onDraw(Canvas canvas) {
// TODO Auto-generated method stub
int cxCompass = getMeasuredWidth()/2;
int cyCompass = getMeasuredHeight()/2;
float radiusCompass;
if(cxCompass > cyCompass){
radiusCompass = (float) (cyCompass * 0.9);
}
else{
radiusCompass = (float) (cxCompass * 0.9);
}
canvas.drawCircle(cxCompass, cyCompass, radiusCompass, paint);
canvas.drawRect(0, 0, getMeasuredWidth(), getMeasuredHeight(), paint);
if(!firstDraw){
canvas.drawLine(cxCompass, cyCompass,
(float)(cxCompass + radiusCompass * Math.sin((double)(-direction) * 3.14/180)),
(float)(cyCompass - radiusCompass * Math.cos((double)(-direction) * 3.14/180)),
paint);
canvas.drawText(String.valueOf(direction), cxCompass, cyCompass, paint);
}
}
public void updateDirection(float dir)
{
firstDraw = false;
direction = dir;
invalidate();
}
}
<?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"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<view
class="com.exercise.AndroidCompass.MyCompassView"
android:id="@+id/mycompassview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
</LinearLayout>
package com.exercise.AndroidCompass;
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.widget.Toast;
public class AndroidCompass extends Activity {
private static SensorManager mySensorManager;
private boolean sersorrunning;
private MyCompassView myCompassView;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
myCompassView = (MyCompassView)findViewById(R.id.mycompassview);
mySensorManager = (SensorManager)getSystemService(Context.SENSOR_SERVICE);
List<Sensor> mySensors = mySensorManager.getSensorList(Sensor.TYPE_ORIENTATION);
if(mySensors.size() > 0){
mySensorManager.registerListener(mySensorEventListener, mySensors.get(0), SensorManager.SENSOR_DELAY_NORMAL);
sersorrunning = true;
Toast.makeText(this, "Start ORIENTATION Sensor", Toast.LENGTH_LONG).show();
}
else{
Toast.makeText(this, "No ORIENTATION Sensor", Toast.LENGTH_LONG).show();
sersorrunning = false;
finish();
}
}
private SensorEventListener mySensorEventListener = new SensorEventListener(){
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
// TODO Auto-generated method stub
}
@Override
public void onSensorChanged(SensorEvent event) {
// TODO Auto-generated method stub
myCompassView.updateDirection((float)event.values[0]);
}
};
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
if(sersorrunning){
mySensorManager.unregisterListener(mySensorEventListener);
}
}
}
<?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"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<TextView
android:id="@+id/textazimuth"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Azimuth: "
/>
<TextView
android:id="@+id/textpitch"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Pitch: "
/>
<TextView
android:id="@+id/textroll"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Roll: "
/>
</LinearLayout>
package com.exercise.AndroidSensorEventListener;
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Toast;
public class AndroidSensorEventListener extends Activity {
TextView textviewAzimuth, textviewPitch, textviewRoll;
private static SensorManager mySensorManager;
private boolean sersorrunning;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
textviewAzimuth = (TextView)findViewById(R.id.textazimuth);
textviewPitch = (TextView)findViewById(R.id.textpitch);
textviewRoll = (TextView)findViewById(R.id.textroll);
mySensorManager = (SensorManager)getSystemService(Context.SENSOR_SERVICE);
List<Sensor> mySensors = mySensorManager.getSensorList(Sensor.TYPE_ORIENTATION);
if(mySensors.size() > 0){
mySensorManager.registerListener(mySensorEventListener, mySensors.get(0), SensorManager.SENSOR_DELAY_NORMAL);
sersorrunning = true;
Toast.makeText(this, "Start ORIENTATION Sensor", Toast.LENGTH_LONG).show();
}
else{
Toast.makeText(this, "No ORIENTATION Sensor", Toast.LENGTH_LONG).show();
sersorrunning = false;
finish();
}
}
private SensorEventListener mySensorEventListener = new SensorEventListener() {
@Override
public void onSensorChanged(SensorEvent event) {
// TODO Auto-generated method stub
textviewAzimuth.setText("Azimuth: " + String.valueOf(event.values[0]));
textviewPitch.setText("Pitch: " + String.valueOf(event.values[1]));
textviewRoll.setText("Roll: " + String.valueOf(event.values[2]));
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
// TODO Auto-generated method stub
}
};
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
if(sersorrunning){
mySensorManager.unregisterListener(mySensorEventListener);
Toast.makeText(AndroidSensorEventListener.this, "unregisterListener", Toast.LENGTH_SHORT).show();
}
}
}
<?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"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<TextView
android:id="@+id/textorientation"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Orientation: "
/>
</LinearLayout>
package com.exercise.AndroidOrientationSensor;
import android.app.Activity;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.view.OrientationEventListener;
import android.widget.TextView;
import android.widget.Toast;
public class AndroidOrientationSensor extends Activity{
TextView textviewOrientation;
OrientationEventListener myOrientationEventListener;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
textviewOrientation = (TextView)findViewById(R.id.textorientation);
myOrientationEventListener
= new OrientationEventListener(this, SensorManager.SENSOR_DELAY_NORMAL){
@Override
public void onOrientationChanged(int arg0) {
// TODO Auto-generated method stub
textviewOrientation.setText("Orientation: " + String.valueOf(arg0));
}};
if (myOrientationEventListener.canDetectOrientation()){
Toast.makeText(this, "Can DetectOrientation", Toast.LENGTH_LONG).show();
myOrientationEventListener.enable();
}
else{
Toast.makeText(this, "Can't DetectOrientation", Toast.LENGTH_LONG).show();
finish();
}
}
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
myOrientationEventListener.disable();
}
}
<activity android:name=".MyActivity"
android:label="@string/app_name"
android:screenOrientation="portrait">
<PreferenceScreen
xmlns:android="http://schemas.android.com/apk/res/android">
<CheckBoxPreference
android:key="checkboxvalue"
android:title="Checkbox"
android:defaultValue="true"
android:summary="CheckBoxPreference" />
<EditTextPreference
android:key="edittexvalue"
android:title="EditText"
android:summary="EditTextPreference" />
</PreferenceScreen>
<?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"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<Button
android:id="@+id/setpreference"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Set Preference"
/>
<TextView
android:id="@+id/checkboxstatus"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<TextView
android:id="@+id/edittextstatus"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
</LinearLayout>
package com.exercise.AndroidPreference;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class AndroidPreference extends Activity {
TextView checkBoxStatus, editTextStatus;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button buttonSetPreference = (Button)findViewById(R.id.setpreference);
checkBoxStatus = (TextView)findViewById(R.id.checkboxstatus);
editTextStatus = (TextView)findViewById(R.id.edittextstatus);
buttonSetPreference.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
startActivity(new Intent(AndroidPreference.this, SetPreference.class));
}});
}
@Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
Toast.makeText(this, "onResume", Toast.LENGTH_LONG).show();
SharedPreferences myPreference=PreferenceManager.getDefaultSharedPreferences(this);
checkBoxStatus.setText("CheckBox Status: " + myPreference.getBoolean("checkboxvalue", true));
editTextStatus.setText("EditText Status: " + myPreference.getString("edittexvalue", ""));
}
}
<PreferenceScreen
xmlns:android="http://schemas.android.com/apk/res/android">
<CheckBoxPreference
android:key="checkbox"
android:title="Checkbox"
android:defaultValue="true"
android:summary="Change The CheckBox Status here, it will be saved in Preference" />
</PreferenceScreen>package com.exercise.AndroidPreference;
import android.os.Bundle;
import android.preference.PreferenceActivity;
public class SetPreference extends PreferenceActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.mypreference);
}
}<?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"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<Button
android:id="@+id/setpreference"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Set Preference"
/>
<CheckBox
android:id="@+id/checkbox"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Check CheckBox status here will not be saved, it will be lost once activity exit."
/>
</LinearLayout>package com.exercise.AndroidPreference;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.Toast;
public class AndroidPreference extends Activity {
CheckBox checkBox;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button buttonSetPreference = (Button)findViewById(R.id.setpreference);
checkBox = (CheckBox)findViewById(R.id.checkbox);
buttonSetPreference.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
startActivity(new Intent(AndroidPreference.this, SetPreference.class));
}});
}
@Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
Toast.makeText(this, "onResume", Toast.LENGTH_LONG).show();
SharedPreferences myPreference=PreferenceManager.getDefaultSharedPreferences(this);
checkBox.setChecked(myPreference.getBoolean("checkbox", true));
}
}<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.exercise.AndroidPreference"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".AndroidPreference"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".SetPreference" />
</application>
<uses-sdk android:minSdkVersion="4" />
</manifest>