Android Master: how to use SharedPreferences in android?

aura.xml

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical" android:layout_width="fill_parent"

android:layout_height="fill_parent">

<RelativeLayout android:id="@+id/TopBar"

android:layout_alignParentTop="true" android:layout_above="@+id/BottomBar"

android:layout_width="fill_parent" android:layout_height="fill_parent"

android:background="@drawable/aura">

<LinearLayout android:id="@+id/ClientSide" android:layout_width="wrap_content"

android:layout_height="wrap_content" android:layout_alignParentTop="true"

android:layout_marginTop="5dip" android:orientation="vertical"

android:layout_alignParentLeft="true">

<TextView android:id="@+id/EnterName" android:layout_width="wrap_content"

android:layout_height="wrap_content" android:text="@string/enterclientname" android:textColor="#000000"

android:textSize="22sp" android:textStyle="bold" android:layout_marginLeft="3dip">

</TextView>

<TextView android:id="@+id/Date" android:layout_width="wrap_content"

android:layout_height="wrap_content" android:text="@string/date" android:textColor="#000000"

android:textSize="10sp" android:textStyle="bold" android:layout_marginLeft="3dip">

</TextView>

</LinearLayout>

<LinearLayout android:id="@+id/ServerSide" android:layout_width="wrap_content"

android:layout_height="wrap_content" android:layout_alignParentTop="true"

android:layout_marginTop="5dip" android:orientation="vertical"

android:layout_alignParentRight="true">

<TextView android:id="@+id/ProvidedBy" android:layout_width="wrap_content"

android:layout_height="wrap_content" android:text="@string/providedby" android:textColor="#000000"

android:textSize="10sp" android:textStyle="bold" android:layout_marginRight="3dip">

</TextView>

<TextView android:id="@+id/CenterName" android:layout_width="wrap_content"

android:layout_height="wrap_content" android:text="@string/centername" android:textColor="#000000"

android:textSize="10sp" android:textStyle="bold" android:layout_marginRight="3dip">

</TextView>

<TextView android:id="@+id/CenterAddress" android:layout_width="wrap_content"

android:layout_height="wrap_content" android:text="@string/centeraddress" android:textColor="#000000"

android:textSize="10sp" android:textStyle="bold" android:layout_marginRight="3dip">

</TextView>

</LinearLayout>

</RelativeLayout>

<LinearLayout android:id="@+id/BottomBar"

android:layout_alignParentBottom="true" android:gravity="center"

android:layout_width="fill_parent" android:layout_height="wrap_content"

android:background="@drawable/bar" android:layout_centerVertical="true">

<Button android:id="@+id/Scan" android:layout_width="wrap_content"

android:layout_height="wrap_content" style="@style/Button"

android:text="@string/scan" android:textColor="#FFFFFF" android:textStyle="bold"

android:layout_weight="1" android:layout_marginLeft="10dip">

</Button>

<Button android:id="@+id/Tune" android:layout_width="wrap_content"

android:layout_height="wrap_content" style="@style/Button"

android:text="@string/tune" android:textColor="#FFFFFF" android:textStyle="bold"

android:layout_weight="1" android:layout_marginLeft="10dip"

android:layout_marginRight="10dip">

</Button>

<Button android:id="@+id/Settings" android:layout_width="wrap_content"

android:layout_height="wrap_content" style="@style/Button"

android:text="@string/settings" android:textColor="#FFFFFF" android:textStyle="bold"

android:layout_weight="1" android:layout_marginRight="10dip">

</Button>

</LinearLayout>

</RelativeLayout>

getclientname.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent" android:layout_height="wrap_content"

android:orientation="vertical">

<EditText android:id="@+id/GetClientName" android:layout_height="wrap_content"

android:layout_width="fill_parent" />

</LinearLayout>

create new folder xml and put this file

preferences.xml

<EditTextPreference

android:key="providedcentername"

android:title="Set Center Name"

android:summary="Please set the center name here"

android:dialogTitle="Center Name" />

<EditTextPreference

android:key="providedcenterinfo"

android:title="Set Center Info"

android:summary="Please set the center info here"

android:dialogTitle="Center Info" />

</PreferenceCategory>

</PreferenceScreen>

Aura.java

package com.kihealer.aura;

import java.text.SimpleDateFormat;

import java.util.Calendar;

import java.util.Date;

import java.util.TimeZone;

import android.app.Activity;

import android.app.AlertDialog;

import android.app.Dialog;

import android.content.DialogInterface;

import android.content.Intent;

import android.content.SharedPreferences;

import android.content.res.Configuration;

import android.os.Bundle;

import android.preference.PreferenceManager;

import android.provider.Settings;

import android.util.DisplayMetrics;

import android.util.Log;

import android.view.KeyEvent;

import android.view.MotionEvent;

import android.view.View;

import android.view.View.OnTouchListener;

import android.widget.Button;

import android.widget.EditText;

import android.widget.TextView;

public class Aura extends Activity

{

protected static final String TAG = Aura.class.getName();

private static int mHeight, mWidth;

TextView mClientName, mDate, mProvidedBy, mCenterName, mCenterAddress;

String mGetClientNameString;

Button mScan, mTune, mSettings;

@Override

public void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.aura);

DisplayMetrics displayMetrics = new DisplayMetrics();

getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);

mHeight = displayMetrics.heightPixels;

Log.v(TAG, "Device Height: " + mHeight);

mWidth = displayMetrics.widthPixels;

Log.v(TAG, "Device Width: " + mWidth);

mClientName = (TextView)findViewById(R.id.EnterName);

mDate = (TextView)findViewById(R.id.Date);

mProvidedBy = (TextView)findViewById(R.id.ProvidedBy);

mCenterName = (TextView)findViewById(R.id.CenterName);

mCenterAddress = (TextView)findViewById(R.id.CenterAddress);

mScan = (Button)findViewById(R.id.Scan);

mTune = (Button)findViewById(R.id.Tune);

mSettings = (Button)findViewById(R.id.Settings);

mClientName.setOnTouchListener(new OnTouchListener()

{

public boolean onTouch(View mView, MotionEvent mMotionEvent)

{

getClientNameDialog();

return false;

}

});

Configuration mConfiguration = new Configuration();

Settings.System.getConfiguration(getContentResolver(), mConfiguration);

final TimeZone mTimeZone = Calendar.getInstance(mConfiguration.locale).getTimeZone();

SimpleDateFormat mSimpleDateFormat = new SimpleDateFormat("MMMMM dd, yyyy - HH:mm");

mSimpleDateFormat.setTimeZone(mTimeZone);

String mCurrentTime = mSimpleDateFormat.format(new Date());

mDate.setText(mCurrentTime);

mScan.setOnClickListener(new View.OnClickListener()

{

public void onClick(View v)

{

Log.v(TAG, "Scan Tab Clicked");

}

});

mTune.setOnClickListener(new View.OnClickListener()

{

public void onClick(View v)

{

Log.v(TAG, "Tune Tab Clicked");

}

});

mSettings.setOnClickListener(new View.OnClickListener()

{

public void onClick(View v)

{

Log.v(TAG, "Settings Tab Clicked");

startActivity(new Intent(Aura.this, EditPreferences.class));

}

});

}//onCreate

private void getClientNameDialog()

{

View mView = View.inflate(Aura.this, R.layout.getclientname, null);

final EditText mSavedClientName = ((EditText) mView.findViewById(R.id.GetClientName));

AlertDialog.Builder mBuilder = new AlertDialog.Builder(Aura.this);

mBuilder.setTitle(getString(R.string.enterclientname));

mBuilder.setPositiveButton(getString(R.string.save), new Dialog.OnClickListener()

{

public void onClick(DialogInterface dialog, int which)

{

mGetClientNameString = mSavedClientName.getText().toString().trim();

mClientName.setText(mGetClientNameString);

dialog.dismiss();

}

});

mBuilder.setView(mView);

mBuilder.show();

}//getClientNameDialog

@Override

public void onResume()

{

super.onResume();

SharedPreferences mSharedPreferences = PreferenceManager.getDefaultSharedPreferences(Aura.this);

mCenterName.setText(mSharedPreferences.getString("providedcentername", "New York Healing Center"));

mCenterAddress.setText(mSharedPreferences.getString("providedcenterinfo", "www.auraqi.com/100.htm"));

}

@Override

public boolean onKeyDown(int keyCode, KeyEvent event)

{

if ((!(android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.DONUT)

&&keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0))

{

onBackPressed();

}

return super.onKeyDown(keyCode, event);

}

public void onBackPressed()

{

finish();

}

EditPreferences.java

package com.kihealer.aura;

import android.os.Bundle;

import android.preference.PreferenceActivity;

public class EditPreferences extends PreferenceActivity

{

@Override

public void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

addPreferencesFromResource(R.xml.preferences);

}

Android Master

Friday, June 3, 2011

how to use SharedPreferences in android?

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