03-07-2008, 12:19 PM
I wish the iPhone SDK supported Java...look at this horrendous code sample:
Code:
/***
Important:
This is sample code demonstrating API, technology or techniques in development.
Although this sample code has been reviewed for technical accuracy, it is not
final. Apple is supplying this information to help you plan for the adoption of
the technologies and programming interfaces described herein. This information
is subject to change, and software implemented based on this sample code should
be tested with final operating system software and final documentation. Newer
versions of this sample code may be provided with future seeds of the API or
technology. For information about updates to this and other developer
documentation, view the New & Updated sidebars in subsequent documentation seeds.
***/
/*
File: HelloWorldClassicAppDelegate.m
Abstract: Responsible for creating the application window at launch and
managing the UI elements that appear in that window.
Version: 1.0
Disclaimer: IMPORTANT: This Apple software is supplied to you by
Apple Inc. ("Apple") in consideration of your agreement to the
following terms, and your use, installation, modification or
redistribution of this Apple software constitutes acceptance of these
terms. If you do not agree with these terms, please do not use,
install, modify or redistribute this Apple software.
In consideration of your agreement to abide by the following terms, and
subject to these terms, Apple grants you a personal, non-exclusive
license, under Apple's copyrights in this original Apple software (the
"Apple Software"), to use, reproduce, modify and redistribute the Apple
Software, with or without modifications, in source and/or binary forms;
provided that if you redistribute the Apple Software in its entirety and
without modifications, you must retain this notice and the following
text and disclaimers in all such redistributions of the Apple Software.
Neither the name, trademarks, service marks or logos of Apple Inc.
may be used to endorse or promote products derived from the Apple
Software without specific prior written permission from Apple. Except
as expressly stated in this notice, no other rights or licenses, express
or implied, are granted by Apple herein, including but not limited to
any patent rights that may be infringed by your derivative works or by
other works in which the Apple Software may be incorporated.
The Apple Software is provided by Apple on an "AS IS" basis. APPLE
MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
Copyright (C) 2008 Apple Inc. All Rights Reserved.
*/
#import "HelloWorldClassicAppDelegate.h"
#define TEXT_FIELD_FONT_SIZE 15.0
#define BUTTON_FONT_SIZE 16.0
#define TEXT_LABEL_FONT_SIZE 30.0
#define TEXT_FIELD_HEIGHT_MULTIPLIER 2.0 // Provide some vertical space around text fields
@implementation HelloWorldClassicAppDelegate
@synthesize window;
@synthesize contentView;
@synthesize textField;
@synthesize label;
- (void)addControlsToContentView:(UIImageView *)aContentView
{
CGRect contentFrame = aContentView.frame;
// Create a button using an image as the background.
// Use the desired background image's size as the button's size
UIImage *buttonBackground = [UIImage imageNamed:@"Button.png"];
CGRect buttonFrame = CGRectMake(0.0, 0.0, buttonBackground.size.width, buttonBackground.size.height);
UIButton *button = [[UIButton alloc] initWithFrame:buttonFrame];
[button setTitle:@"Hello" forStates:UIControlStateNormal];
button.font = [UIFont boldSystemFontOfSize:BUTTON_FONT_SIZE];
// Center the text on the button, considering the button's shadow
button.contentHorizontalAlignment = UIControlContentHorizontalAlignmentCenter;
button.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
button.titleEdgeInsets = UIEdgeInsetsMake(-2.0, 0.0, 2.0, 0.0); //Create inset for the shadow below
// Set the background image on the button
[button setBackgroundImage:buttonBackground forStates:UIControlStateNormal];
[button addTarget:self action:@selector(hello:) forControlEvents:UIControlEventTouchUpInside]; //hello: is sent when the button is touched
// Position the button centered horizontally in the contentView
button.center = CGPointMake(aContentView.center.x, aContentView.center.y-52);
[aContentView addSubview:button];
[button release];
// Create a text field to type into
CGFloat textFieldWidth = contentFrame.size.width * 0.72;
// and set the origin based on centering the view
CGFloat textFieldOriginX = (contentFrame.size.width - textFieldWidth) / 2.0;
CGFloat leftMargin = 20.0;
CGRect textFieldFrame = CGRectMake(textFieldOriginX, leftMargin, textFieldWidth, TEXT_FIELD_FONT_SIZE * TEXT_FIELD_HEIGHT_MULTIPLIER);
UITextField *aTextField = [[UITextField alloc] initWithFrame:textFieldFrame];
aTextField.borderStyle = UITextFieldBorderStyleRounded;
aTextField.font = [UIFont systemFontOfSize:TEXT_FIELD_FONT_SIZE];
aTextField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
aTextField.placeholder = @"Your name";
aTextField.keyboardType = UIKeyboardTypeAlphabet;
self.textField = aTextField;
[aTextField release];
[aContentView addSubview: self.textField];
// Create a label for greeting output. Dimensions are based on the input field sizing
leftMargin = 90.0;
CGRect labelFrame = CGRectMake(textFieldOriginX, leftMargin, textFieldWidth, TEXT_LABEL_FONT_SIZE * TEXT_FIELD_HEIGHT_MULTIPLIER);
UILabel *aLabel = [[UILabel alloc] initWithFrame:labelFrame];
aLabel.font = [UIFont systemFontOfSize:TEXT_LABEL_FONT_SIZE];
// Create a slightly muted green color
aLabel.textColor = [UIColor colorWithRed:0.22 green:0.54 blue:0.41 alpha:1.0];
aLabel.textAlignment = UITextAlignmentCenter;
self.label = aLabel;
[aLabel release];
[aContentView addSubview: self.label];
}
//This method is invoked when the Hello button is touched
- (void)hello:(id)sender
{
[self.textField resignFirstResponder];
NSString *nameString = self.textField.text;
if ([nameString length] == 0) { //Nothing was typed
nameString = @"World";
}
NSString *greeting = [NSString stringWithFormat:@"Hello %@!", nameString];
self.label.text = greeting;
}
- (void)dealloc
{
[contentView release];
[window release];
[textField release];
[label release];
[super dealloc];
}
#pragma mark -
#pragma mark UIApplication delegate method
- (void)applicationDidFinishLaunching:(UIApplication *)application
{
// Set up the window and content view
CGRect screenRect = [[UIScreen mainScreen] bounds];
self.window = [[[UIWindow alloc] initWithFrame:screenRect] autorelease];
// Add the image as the background view
UIImageView *anImageView = [[UIImageView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];
anImageView.image = [UIImage imageNamed:@"Background.png"];
self.contentView = anImageView;
[anImageView release];
[self.window addSubview: self.contentView];
[self addControlsToContentView: self.contentView];
// Show the window
[self.window makeKeyAndVisible];
}
@end
