From 421bf4e1e8e981b838c7c7fc1b35a3ae25ebe25a Mon Sep 17 00:00:00 2001
From: tokugawa <brodenmayer@yahoo.com>
Date: Sun, 9 Feb 2014 20:38:55 -0500
Subject: [PATCH] Added fullfunctionality to the interface.

---
 HW2/res/layout/activity_main.xml              |   3 +-
 .../edu/uncc/itcs4180/hw2/MainActivity.java   | 146 +++++++++++++++++-
 2 files changed, 144 insertions(+), 5 deletions(-)

diff --git a/HW2/res/layout/activity_main.xml b/HW2/res/layout/activity_main.xml
index 43a1d73..c738ff9 100644
--- a/HW2/res/layout/activity_main.xml
+++ b/HW2/res/layout/activity_main.xml
@@ -180,7 +180,8 @@
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"
             android:layout_weight="1"
-            android:text="@string/btnExit" />
+            android:text="@string/btnExit" 
+            android:onClick="onClick" />
     </TableRow>
 
 </TableLayout>
\ No newline at end of file
diff --git a/HW2/src/edu/uncc/itcs4180/hw2/MainActivity.java b/HW2/src/edu/uncc/itcs4180/hw2/MainActivity.java
index 2aa8d15..961cba2 100644
--- a/HW2/src/edu/uncc/itcs4180/hw2/MainActivity.java
+++ b/HW2/src/edu/uncc/itcs4180/hw2/MainActivity.java
@@ -1,22 +1,160 @@
 package edu.uncc.itcs4180.hw2;
 
+import java.text.NumberFormat;
+
 import android.os.Bundle;
 import android.app.Activity;
+import android.text.Editable;
+import android.text.TextWatcher;
 import android.view.Menu;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.RadioButton;
+import android.widget.RadioGroup;
+import android.widget.RadioGroup.OnCheckedChangeListener;
+import android.widget.SeekBar;
+import android.widget.SeekBar.OnSeekBarChangeListener;
+import android.widget.TextView;
 
-public class MainActivity extends Activity {
+public class MainActivity extends Activity implements OnCheckedChangeListener,
+		OnSeekBarChangeListener, View.OnClickListener, TextWatcher 
+{
+	final static double TEN = .10;
+	final static double TWOFIVE = .25;
+	final static double FIVEZERO = .50;
+	RadioGroup percents;
+	SeekBar customBar;
+	Button exit;
+	EditText listPrice;
+	TextView saved, paid, customPercent;
+	NumberFormat currencyFormat, percentFormat;
 
 	@Override
-	protected void onCreate(Bundle savedInstanceState) {
+	protected void onCreate(Bundle savedInstanceState) 
+	{
 		super.onCreate(savedInstanceState);
 		setContentView(R.layout.activity_main);
-	}
 
+		currencyFormat = NumberFormat.getCurrencyInstance();
+		percentFormat = NumberFormat.getPercentInstance();
+		
+		customPercent = (TextView) findViewById(R.id.lblCustomPercentValue);
+		customPercent.setText(percentFormat.format(0));
+		saved = (TextView) findViewById(R.id.lblUserSavesValue);
+		paid = (TextView) findViewById(R.id.lblUserPaysValue);
+
+		customBar = (SeekBar) findViewById(R.id.seekCustom);
+		customBar.setOnSeekBarChangeListener(this);
+
+		percents = (RadioGroup) findViewById(R.id.rdgDiscountPercent);
+		percents.setOnCheckedChangeListener(this);
+		
+		listPrice = (EditText) findViewById(R.id.txtListedPrice);
+		listPrice.addTextChangedListener(this);
+	}
+	
 	@Override
-	public boolean onCreateOptionsMenu(Menu menu) {
+	public boolean onCreateOptionsMenu(Menu menu) 
+	{
 		// Inflate the menu; this adds items to the action bar if it is present.
 		getMenuInflater().inflate(R.menu.main, menu);
 		return true;
 	}
 
+	@Override
+	public void onProgressChanged(SeekBar bar, int progress, boolean fromUser) 
+	{
+		customPercent.setText(percentFormat.format(progress/100.0));
+	}
+
+	@Override
+	public void onStartTrackingTouch(SeekBar bar) 
+	{
+		// No need
+	}
+
+	@Override
+	public void onStopTrackingTouch(SeekBar bar)
+	{
+		bar.setSecondaryProgress(bar.getProgress());
+		updateCost();
+	}
+
+	@Override
+	public void onClick(View v) 
+	{
+		// TODO Auto-generated method stub
+		finish();
+	}
+
+	@Override
+	public void onCheckedChanged(RadioGroup rg, int checkedId) 
+	{
+		// TODO Auto-generated method stub
+		updateCost();
+	}
+
+	@Override
+	public void afterTextChanged(Editable arg0) {
+		// TODO Auto-generated method stub
+		updateCost();
+	}
+
+	@Override
+	public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
+			int arg3) {
+		// TODO Auto-generated method stub
+	}
+
+	@Override
+	public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
+		// TODO Auto-generated method stub
+		updateCost();
+		if(listPrice.getText().toString().trim().equals(""))
+		{
+			listPrice.setError("Enter List Price");
+		}
+	}
+	
+	public void updateCost()
+	{
+		double savedAmount;
+		double paidAmount;
+		try {
+			double startPrice = Double.parseDouble(listPrice.getText().toString());
+			if (((RadioButton)findViewById(R.id.rad10Pct)).isChecked()) 
+			{
+				savedAmount=startPrice * TEN;
+				paidAmount=startPrice * (1 - TEN);
+			} 
+			else if (((RadioButton)findViewById(R.id.rad25Pct)).isChecked())  
+			{
+				savedAmount=startPrice * TWOFIVE;
+				paidAmount=startPrice * (1 - TWOFIVE);
+			} 
+			else if (((RadioButton)findViewById(R.id.rad50Pct)).isChecked()) 
+			{
+				savedAmount=startPrice * FIVEZERO;
+				paidAmount=startPrice * (1 - FIVEZERO);
+			} 
+			else 
+			{
+				int percentage=Integer.parseInt(customPercent.getText().toString().replaceAll("[\\D]",""));
+				savedAmount=startPrice * percentage/100;
+				paidAmount=startPrice * (1 - percentage/100);
+			} 
+		} 
+		catch (Exception e) 
+		{
+			if(listPrice.getText().toString().trim().equals(""))
+			{
+				listPrice.setError("Enter List Price");
+			}
+			savedAmount=0;
+			paidAmount=0;
+		}
+		saved.setText(currencyFormat.format(savedAmount));
+		paid.setText(currencyFormat.format(paidAmount));
+	}
 }