- Added temperature conversion for °C/°F/K - Added currency conversion for CHF/EUR/USD - Clean-up: Removed example strings and arrays
/trunk/src/ch/ffhs/converter/app/CurrenciesActivity.java |
---|
1,51 → 1,232 |
/* |
* Copyright (C) 2008 The Android Open Source Project |
* |
* Licensed under the Apache License, Version 2.0 (the "License"); |
* you may not use this file except in compliance with the License. |
* You may obtain a copy of the License at |
* |
* http://www.apache.org/licenses/LICENSE-2.0 |
* |
* Unless required by applicable law or agreed to in writing, software |
* distributed under the License is distributed on an "AS IS" BASIS, |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
* See the License for the specific language governing permissions and |
* limitations under the License. |
*/ |
package ch.ffhs.converter.app; |
// Need the following import to get access to the app resources, since this |
// class is in a sub-package. |
import java.util.HashMap; |
import android.app.Activity; |
import android.os.Bundle; |
import android.text.Editable; |
import android.view.KeyEvent; |
import android.view.View; |
import android.view.View.OnKeyListener; |
import android.widget.AdapterView; |
import android.widget.AdapterView.OnItemSelectedListener; |
import android.widget.EditText; |
import android.widget.Spinner; |
import ch.ffhs.converter.R; |
/** |
* <h3>Dialog Activity</h3> |
* Activity that implements currency conversion |
* |
* <p> |
* This demonstrates the how to write an activity that looks like a pop-up |
* dialog with a custom theme using a different text color. |
* </p> |
* @author pelinux |
*/ |
public class CurrenciesActivity extends Activity |
{ |
/* |
* Constants for mapping value strings to internal IDs |
*/ |
private static final String VALUE_CHF = "CHF"; //$NON-NLS-1$ |
private static final String VALUE_EUR = "EUR"; //$NON-NLS-1$ |
private static final String VALUE_USD = "USD"; //$NON-NLS-1$ |
private static final int ITEM_CHF = 0; |
private static final int ITEM_EUR = 1; |
private static final int ITEM_USD = 2; |
/** |
* Initialization of the Activity after it is first created. Must at least |
* call {@link android.app.Activity#setContentView setContentView()} to |
* describe what is to be displayed in the screen. |
* Maps value strings to internal IDs |
*/ |
private final static HashMap<String, Integer> valueToId = |
new HashMap<String, Integer>(); |
static |
{ |
CurrenciesActivity.valueToId.put(CurrenciesActivity.VALUE_CHF, |
CurrenciesActivity.ITEM_CHF); |
CurrenciesActivity.valueToId.put(CurrenciesActivity.VALUE_EUR, |
CurrenciesActivity.ITEM_EUR); |
CurrenciesActivity.valueToId.put(CurrenciesActivity.VALUE_USD, |
CurrenciesActivity.ITEM_USD); |
} |
/* Unit spinners (dropdowns) */ |
private Spinner spinnerUnit1; |
private Spinner spinnerUnit2; |
/** Called when the activity is first created. */ |
@Override |
protected void onCreate(Bundle savedInstanceState) |
public void onCreate(Bundle savedInstanceState) |
{ |
// Be sure to call the super class. |
super.onCreate(savedInstanceState); |
this.setContentView(R.layout.activity_currencies); |
// See assets/res/any/layout/dialog_activity.xml for this |
// view layout definition, which is being set here as |
// the content of our screen. |
this.setContentView(R.layout.custom_dialog_activity); |
final EditText editValue1 = |
(EditText) this.findViewById(R.id.currencies_edit_value1); |
final EditText editValue2 = |
(EditText) this.findViewById(R.id.currencies_edit_value2); |
final OnKeyListener editValue1OnKey = new OnKeyListener() { |
@Override |
public boolean onKey(View v, int keyCode, KeyEvent event) |
{ |
Editable editable1 = ((EditText) v).getText(); |
Double value1; |
try |
{ |
value1 = Double.parseDouble(editable1.toString()); |
} |
catch (NumberFormatException e) |
{ |
value1 = null; |
} |
String string2 = ""; //$NON-NLS-1$ |
if (value1 != null) |
{ |
string2 = CurrenciesActivity.this.getConvertedValue(value1, false); |
} |
editValue2.setText(string2); |
return false; |
} |
}; |
editValue1.setOnKeyListener(editValue1OnKey); |
final OnKeyListener editValue2OnKey = new OnKeyListener() { |
@Override |
public boolean onKey(View v, int keyCode, KeyEvent event) |
{ |
Editable editable2 = ((EditText) v).getText(); |
Double value2; |
try |
{ |
value2 = Double.parseDouble(editable2.toString()); |
} |
catch (NumberFormatException e) |
{ |
value2 = null; |
} |
String string1 = ""; //$NON-NLS-1$ |
if (value2 != null) |
{ |
string1 = CurrenciesActivity.this.getConvertedValue(value2, true); |
} |
editValue1.setText(string1); |
return false; |
} |
}; |
editValue2.setOnKeyListener(editValue2OnKey); |
this.spinnerUnit1 = |
(Spinner) this.findViewById(R.id.currencies_spinner_unit1); |
this.spinnerUnit2 = |
(Spinner) this.findViewById(R.id.currencies_spinner_unit2); |
this.spinnerUnit1.setOnItemSelectedListener(new OnItemSelectedListener() { |
@Override |
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, |
long arg3) |
{ |
/* Simulate input in second EditText so that first EditText is updated */ |
editValue2OnKey.onKey(editValue2, 0, null); |
} |
@Override |
public void onNothingSelected(AdapterView<?> arg0) |
{ |
/* no-op */ |
} |
}); |
this.spinnerUnit2.setSelection(1); |
this.spinnerUnit2.setOnItemSelectedListener(new OnItemSelectedListener() { |
@Override |
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, |
long arg3) |
{ |
/* Simulate input in first EditText so that second EditText is updated */ |
editValue1OnKey.onKey(editValue1, 0, null); |
} |
@Override |
public void onNothingSelected(AdapterView<?> arg0) |
{ |
/* no-op */ |
} |
}); |
} |
/** |
* @param value |
* @return |
*/ |
private String getConvertedValue(double value, boolean reverse) |
{ |
int selectedItemPosition1 = this.spinnerUnit1.getSelectedItemPosition(); |
int selectedItemPosition2 = this.spinnerUnit2.getSelectedItemPosition(); |
String[] itemArray = |
this.getResources().getStringArray(R.array.currency_units_values); |
String selectedItemValue1 = itemArray[selectedItemPosition1]; |
String selectedItemValue2 = itemArray[selectedItemPosition2]; |
if (reverse) |
{ |
String tmp = selectedItemValue1; |
selectedItemValue1 = selectedItemValue2; |
selectedItemValue2 = tmp; |
} |
int itemId1 = CurrenciesActivity.valueToId.get(selectedItemValue1); |
int itemId2 = CurrenciesActivity.valueToId.get(selectedItemValue2); |
Double newValue = value; |
switch (itemId1) |
{ |
case ITEM_CHF: |
switch (itemId2) |
{ |
case ITEM_EUR: |
newValue = new Double(value * 0.767842293); |
break; |
case ITEM_USD: |
newValue = new Double(value * 1.03413); |
break; |
} |
break; |
case ITEM_EUR: |
switch (itemId2) |
{ |
case ITEM_CHF: |
newValue = new Double(value * 1.30235077); |
break; |
case ITEM_USD: |
newValue = new Double(value * 1.3468); |
break; |
} |
break; |
case ITEM_USD: |
switch (itemId2) |
{ |
case ITEM_CHF: |
newValue = new Double(value * 0.966996412); |
break; |
case ITEM_EUR: |
newValue = new Double(value * 0.742500743); |
break; |
} |
break; |
} |
return newValue.toString(); |
} |
} |
/trunk/src/ch/ffhs/converter/app/LengthsActivity.java |
---|
25,13 → 25,13 |
* Constants for mapping value strings to internal IDs |
*/ |
private static final String VALUE_INCHES = "inch"; //$NON-NLS-1$ |
private static final String VALUE_KILOMETERS = "km"; //$NON-NLS-1$ |
private static final String VALUE_METERS = "m"; //$NON-NLS-1$ |
private static final String VALUE_MILES = "mi"; //$NON-NLS-1$ |
private static final String VALUE_KILOMETERS = "km"; //$NON-NLS-1$ |
private static final int ITEM_INCHES = 0; |
private static final int ITEM_METERS = 1; |
private static final int ITEM_MILES = 2; |
private static final int ITEM_KILOMETERS = 3; |
private static final int ITEM_KILOMETERS = 1; |
private static final int ITEM_METERS = 2; |
private static final int ITEM_MILES = 3; |
/** |
* Maps value strings to internal IDs |
38,23 → 38,22 |
*/ |
private final static HashMap<String, Integer> valueToId = |
new HashMap<String, Integer>(); |
/* Unit spinners (dropdowns) */ |
private Spinner spinnerUnit1; |
private Spinner spinnerUnit2; |
static |
{ |
LengthsActivity.valueToId.put(LengthsActivity.VALUE_INCHES, |
LengthsActivity.ITEM_INCHES); |
LengthsActivity.valueToId.put(LengthsActivity.VALUE_KILOMETERS, |
LengthsActivity.ITEM_KILOMETERS); |
LengthsActivity.valueToId.put(LengthsActivity.VALUE_METERS, |
LengthsActivity.ITEM_METERS); |
LengthsActivity.valueToId.put(LengthsActivity.VALUE_MILES, |
LengthsActivity.ITEM_MILES); |
LengthsActivity.valueToId.put(LengthsActivity.VALUE_KILOMETERS, |
LengthsActivity.ITEM_KILOMETERS); |
} |
/* Unit spinners (dropdowns) */ |
private Spinner spinnerUnit1; |
private Spinner spinnerUnit2; |
/** Called when the activity is first created. */ |
@Override |
72,7 → 71,7 |
{ |
Editable editable1 = ((EditText) v).getText(); |
double value1; |
Double value1; |
try |
{ |
value1 = Double.parseDouble(editable1.toString()); |
79,11 → 78,11 |
} |
catch (NumberFormatException e) |
{ |
value1 = -1.0; |
value1 = null; |
} |
String string2 = ""; //$NON-NLS-1$ |
if (value1 >= 0.0) |
if (value1 != null) |
{ |
string2 = LengthsActivity.this.getConvertedValue(value1, false); |
} |
101,7 → 100,7 |
{ |
Editable editable2 = ((EditText) v).getText(); |
double value2; |
Double value2; |
try |
{ |
value2 = Double.parseDouble(editable2.toString()); |
108,11 → 107,11 |
} |
catch (NumberFormatException e) |
{ |
value2 = -1.0; |
value2 = null; |
} |
String string1 = ""; //$NON-NLS-1$ |
if (value2 >= 0.0) |
if (value2 != null) |
{ |
string1 = LengthsActivity.this.getConvertedValue(value2, true); |
} |
143,6 → 142,7 |
} |
}); |
this.spinnerUnit2.setSelection(1); |
this.spinnerUnit2.setOnItemSelectedListener(new OnItemSelectedListener() { |
@Override |
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, |
190,6 → 190,11 |
case ITEM_INCHES: |
switch (itemId2) |
{ |
case ITEM_KILOMETERS: |
/* see ITEM_METERS */ |
newValue = new Double((value * 0.0254) / 1000); |
break; |
case ITEM_METERS: |
newValue = new Double(value * 0.0254); |
break; |
198,11 → 203,24 |
/* 12 in/ft and 5280 ft/mi */ |
newValue = new Double(value / 12 / 5280); |
break; |
} |
break; |
case ITEM_KILOMETERS: |
/* see ITEM_METERS */ |
newValue = new Double((value * 0.0254) / 1000); |
switch (itemId2) |
{ |
case ITEM_INCHES: |
/* 1 m = 39.370 in */ |
newValue = new Double(value * 1000 * 39.370); |
break; |
case ITEM_METERS: |
newValue = new Double(value * 1000); |
break; |
case ITEM_MILES: |
newValue = new Double(value / 1.609344); |
break; |
} |
break; |
209,15 → 227,15 |
case ITEM_METERS: |
switch (itemId2) |
{ |
case ITEM_KILOMETERS: |
newValue = new Double(value / 1000); |
break; |
case ITEM_INCHES: |
/* 1 m = 39.370 in */ |
newValue = new Double(value * 39.370); |
break; |
case ITEM_KILOMETERS: |
newValue = new Double(value / 1000); |
break; |
case ITEM_MILES: |
/* 1 mi = 1609.344 m */ |
newValue = new Double(value / 1609.344); |
233,33 → 251,16 |
newValue = new Double(value * 5280 * 12); |
break; |
case ITEM_METERS: |
newValue = new Double(value * 1609.344); |
break; |
case ITEM_KILOMETERS: |
newValue = new Double(value * 1.609344); |
break; |
} |
break; |
case ITEM_KILOMETERS: |
switch (itemId2) |
{ |
case ITEM_INCHES: |
/* 1 m = 39.370 in */ |
newValue = new Double(value * 1000 * 39.370); |
break; |
case ITEM_METERS: |
newValue = new Double(value * 1000); |
newValue = new Double(value * 1609.344); |
break; |
case ITEM_MILES: |
newValue = new Double(value / 1.609344); |
} |
break; |
} |
} |
return newValue.toString(); |
} |
/trunk/src/ch/ffhs/converter/app/TemperaturesActivity.java |
---|
1,57 → 1,263 |
/* |
* Copyright (C) 2008 The Android Open Source Project |
* |
* Licensed under the Apache License, Version 2.0 (the "License"); |
* you may not use this file except in compliance with the License. |
* You may obtain a copy of the License at |
* |
* http://www.apache.org/licenses/LICENSE-2.0 |
* |
* Unless required by applicable law or agreed to in writing, software |
* distributed under the License is distributed on an "AS IS" BASIS, |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
* See the License for the specific language governing permissions and |
* limitations under the License. |
*/ |
package ch.ffhs.converter.app; |
// Need the following import to get access to the app resources, since this |
// class is in a sub-package. |
import java.util.HashMap; |
import android.app.Activity; |
import android.os.Bundle; |
import android.view.Window; |
import android.text.Editable; |
import android.view.KeyEvent; |
import android.view.View; |
import android.view.View.OnKeyListener; |
import android.widget.AdapterView; |
import android.widget.AdapterView.OnItemSelectedListener; |
import android.widget.EditText; |
import android.widget.Spinner; |
import android.widget.TextView; |
import ch.ffhs.converter.R; |
/** |
* <h3>Dialog Activity</h3> |
* Activity that implements length conversion |
* |
* <p> |
* This demonstrates the how to write an activity that looks like a pop-up |
* dialog. |
* </p> |
* @author pelinux |
*/ |
public class TemperaturesActivity extends Activity |
{ |
/** |
* Initialization of the Activity after it is first created. Must at least |
* call {@link android.app.Activity#setContentView setContentView()} to |
* describe what is to be displayed in the screen. |
* |
*/ |
private static final String MSG_BELOW_ABS_ZERO = "K must be >= 0"; |
/* |
* Constants for mapping value strings to internal IDs |
*/ |
private static final String VALUE_CELSIUS = "C"; //$NON-NLS-1$ |
private static final String VALUE_FAHRENHEIT = "F"; //$NON-NLS-1$ |
private static final String VALUE_KELVIN = "K"; //$NON-NLS-1$ |
private static final int ITEM_CELSIUS = 0; |
private static final int ITEM_FAHRENHEIT = 1; |
private static final int ITEM_KELVIN = 2; |
/** |
* Maps value strings to internal IDs |
*/ |
private final static HashMap<String, Integer> valueToId = |
new HashMap<String, Integer>(); |
/* Unit spinners (dropdowns) */ |
private Spinner spinnerUnit1; |
private Spinner spinnerUnit2; |
/* Hint that value is off scale */ |
private TextView textOffScale; |
static |
{ |
TemperaturesActivity.valueToId.put(TemperaturesActivity.VALUE_CELSIUS, |
TemperaturesActivity.ITEM_CELSIUS); |
TemperaturesActivity.valueToId.put(TemperaturesActivity.VALUE_FAHRENHEIT, |
TemperaturesActivity.ITEM_FAHRENHEIT); |
TemperaturesActivity.valueToId.put(TemperaturesActivity.VALUE_KELVIN, |
TemperaturesActivity.ITEM_KELVIN); |
} |
/** Called when the activity is first created. */ |
@Override |
protected void onCreate(Bundle savedInstanceState) |
public void onCreate(Bundle savedInstanceState) |
{ |
// Be sure to call the super class. |
super.onCreate(savedInstanceState); |
this.setContentView(R.layout.activity_temperatures); |
this.requestWindowFeature(Window.FEATURE_LEFT_ICON); |
this.textOffScale = |
(TextView) this.findViewById(R.id.temperatures_text_off_scale); |
// See assets/res/any/layout/dialog_activity.xml for this |
// view layout definition, which is being set here as |
// the content of our screen. |
this.setContentView(R.layout.dialog_activity); |
final EditText editValue1 = |
(EditText) this.findViewById(R.id.temperatures_edit_value1); |
final EditText editValue2 = |
(EditText) this.findViewById(R.id.temperatures_edit_value2); |
this.getWindow().setFeatureDrawableResource(Window.FEATURE_LEFT_ICON, |
android.R.drawable.ic_dialog_alert); |
final OnKeyListener editValue1OnKey = new OnKeyListener() { |
@Override |
public boolean onKey(View v, int keyCode, KeyEvent event) |
{ |
Editable editable1 = ((EditText) v).getText(); |
Double value1; |
try |
{ |
value1 = Double.parseDouble(editable1.toString()); |
} |
catch (NumberFormatException e) |
{ |
value1 = null; |
} |
String string2 = ""; //$NON-NLS-1$ |
if (value1 != null) |
{ |
string2 = TemperaturesActivity.this.getConvertedValue(value1, false); |
} |
editValue2.setText(string2); |
return false; |
} |
}; |
editValue1.setOnKeyListener(editValue1OnKey); |
final OnKeyListener editValue2OnKey = new OnKeyListener() { |
@Override |
public boolean onKey(View v, int keyCode, KeyEvent event) |
{ |
Editable editable2 = ((EditText) v).getText(); |
Double value2; |
try |
{ |
value2 = Double.parseDouble(editable2.toString()); |
} |
catch (NumberFormatException e) |
{ |
value2 = null; |
} |
String string1 = ""; //$NON-NLS-1$ |
if (value2 != null) |
{ |
string1 = TemperaturesActivity.this.getConvertedValue(value2, true); |
} |
editValue1.setText(string1); |
return false; |
} |
}; |
editValue2.setOnKeyListener(editValue2OnKey); |
this.spinnerUnit1 = |
(Spinner) this.findViewById(R.id.temperatures_spinner_unit1); |
this.spinnerUnit2 = |
(Spinner) this.findViewById(R.id.temperatures_spinner_unit2); |
this.spinnerUnit1.setOnItemSelectedListener(new OnItemSelectedListener() { |
@Override |
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, |
long arg3) |
{ |
/* Simulate input in second EditText so that first EditText is updated */ |
editValue2OnKey.onKey(editValue2, 0, null); |
} |
@Override |
public void onNothingSelected(AdapterView<?> arg0) |
{ |
/* no-op */ |
} |
}); |
this.spinnerUnit2.setSelection(1); |
this.spinnerUnit2.setOnItemSelectedListener(new OnItemSelectedListener() { |
@Override |
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, |
long arg3) |
{ |
/* Simulate input in first EditText so that second EditText is updated */ |
editValue1OnKey.onKey(editValue1, 0, null); |
} |
@Override |
public void onNothingSelected(AdapterView<?> arg0) |
{ |
/* no-op */ |
} |
}); |
} |
/** |
* @param value |
* @return |
*/ |
private String getConvertedValue(double value, boolean reverse) |
{ |
int selectedItemPosition1 = this.spinnerUnit1.getSelectedItemPosition(); |
int selectedItemPosition2 = this.spinnerUnit2.getSelectedItemPosition(); |
String[] itemArray = |
this.getResources().getStringArray(R.array.temperature_units_values); |
String selectedItemValue1 = itemArray[selectedItemPosition1]; |
String selectedItemValue2 = itemArray[selectedItemPosition2]; |
if (reverse) |
{ |
String tmp = selectedItemValue1; |
selectedItemValue1 = selectedItemValue2; |
selectedItemValue2 = tmp; |
} |
int itemId1 = TemperaturesActivity.valueToId.get(selectedItemValue1); |
int itemId2 = TemperaturesActivity.valueToId.get(selectedItemValue2); |
Double newValue = value; |
this.textOffScale.setVisibility(View.INVISIBLE); |
switch (itemId1) |
{ |
case ITEM_CELSIUS: |
switch (itemId2) |
{ |
case ITEM_FAHRENHEIT: |
newValue = new Double(value * 9.0 / 5 + 32); |
break; |
case ITEM_KELVIN: |
newValue = new Double(value + 273.15); |
if (newValue < 0.0) |
{ |
this.textOffScale.setVisibility(View.VISIBLE); |
return "*" + newValue.toString(); |
} |
break; |
} |
break; |
case ITEM_FAHRENHEIT: |
switch (itemId2) |
{ |
case ITEM_CELSIUS: |
newValue = new Double((value - 32) * 5.0 / 9); |
break; |
case ITEM_KELVIN: |
newValue = new Double((value + 459.67) * 5.0 / 9); |
if (newValue < 0.0) |
{ |
this.textOffScale.setVisibility(View.VISIBLE); |
return "*" + newValue.toString(); |
} |
break; |
} |
break; |
case ITEM_KELVIN: |
if (value < 0.0) |
{ |
return TemperaturesActivity.MSG_BELOW_ABS_ZERO; |
} |
switch (itemId2) |
{ |
case ITEM_CELSIUS: |
newValue = new Double(value - 273.15); |
break; |
case ITEM_FAHRENHEIT: |
newValue = new Double(value * 9.0 / 5 - 459.67); |
break; |
} |
break; |
} |
return newValue.toString(); |
} |
} |