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Assignment 1B – CS193P @ Stanford U – iPhone Dev

June 16th, 2009

Je suis en train de faire un cours sur le développement d’application pour le iPhone. Il y a présentement un cours disponible sur le site de l’Université Stanford (itunes.stanford.edu) qui est bien, Rechercher: “Stanford CS193P” sur Google. Bref, je fais également les devoirs qui vont avec le cours. Voici donc le résultat du devoir “Assignment-1B”.

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#import <Foundation/Foundation.h>
 
 
void PrintPathInfo() {
// Section 1
	NSString *aString = @"~";
 
	aString = [aString stringByExpandingTildeInPath];
 
    NSLog(@"My home folder is at %@", aString);
 
	//NSArray *pathComponents = aString;
	NSArray *pathComponents = [aString componentsSeparatedByString:@"/"];
	//pathComponents = [aString stringsByAppendingPaths:(NSArray *)pathComponents];
 
	NSLog([pathComponents description]);
 
}
 
void PrintProcessInfo(){
// Section 2
	NSString *processName = [[NSProcessInfo processInfo] processName];
	int processId = [[NSProcessInfo processInfo] processIdentifier];
 
	NSLog(@"Process Name: '%@' Process ID: '%i'", processName, processId);
}
 
void PrintBookmarkInfo(){
// Section 3
	NSMutableDictionary *dictionary = [NSMutableDictionary dictionary];
	[dictionary setObject:[NSURL URLWithString:@"http://www.standford.edu"] forKey:@"Stanford University"];
	[dictionary setObject:[NSURL URLWithString:@"http://www.apple.com"] forKey:@"Apple"];
	[dictionary setObject:[NSURL URLWithString:@"http://cs193p.stanford.edu"] forKey:@"CS193P"];
	[dictionary setObject:[NSURL URLWithString:@"http://itunes.stanford.edu"] forKey:@"Stanford on iTunes U"];
	[dictionary setObject:[NSURL URLWithString:@"http://www.stanfordmall.com"] forKey:@"Stanford Mall"];
 
	//NSLog([dictionary description]);
 
	for (id key in dictionary) {
		if([key hasPrefix:@"Stanford"]){
			NSLog(@"key: %@, value: %@", key, [dictionary objectForKey:key]);
		}
	}
 
	//NSString *key;
	//for(key in dictionary){
	//		NSLog(@"key: %@, value: %@", key, [dictionary valueForKey:key]);
	//}
 
}
 
void PrintIntrospectionInfo() {
// Section 4
	NSMutableDictionary *dictionary = [NSMutableDictionary dictionary];
	[dictionary setObject:[NSURL URLWithString:@"http://www.standford.edu"] forKey:@"Stanford University"];
	[dictionary setObject:[NSURL URLWithString:@"http://www.apple.com"] forKey:@"Apple"];
	[dictionary setObject:[NSURL URLWithString:@"http://cs193p.stanford.edu"] forKey:@"CS193P"];
	[dictionary setObject:[NSURL URLWithString:@"http://itunes.stanford.edu"] forKey:@"Stanford on iTunes U"];
	[dictionary setObject:[NSURL URLWithString:@"http://www.stanfordmall.com"] forKey:@"Stanford Mall"];
	NSString *stringHello = @"hello world";
	NSURL *appleURL = @"http://www.apple.com";
 
	NSMutableArray *array = [NSMutableArray array];
	[array addObject:stringHello];
	[array addObject:appleURL];
	[array addObject:dictionary];
 
	for (int i=0; i<3;i++) {
		NSLog(@"=================================================");
		NSLog(@"Class name: %@", [[array objectAtIndex:i] class]);
 
		if([[array objectAtIndex:i] isMemberOfClass:[NSString class]]){
			NSLog(@"Is Member of NSString: YES");
		}else{
			NSLog(@"Is Member of NSString: NO");
		}
 
		if([[array objectAtIndex:i] isKindOfClass:[NSString class]]){
			NSLog(@"Is Kind of NSString: YES");
		}else{
			NSLog(@"Is Kind of NSString: NO");
		}
 
		SEL sel = @selector(lowercaseString);
 
		if ([[array objectAtIndex:i] respondsToSelector:sel]) {
			NSLog(@"Responds to lowercaseString: YES");
			NSString *res = [NSString stringWithFormat:@"lowercaseString is: %@", [[array objectAtIndex:i] performSelector:sel withObject:[array objectAtIndex:i]]];
			NSLog(res);
		}else{
			NSLog(@"Responds to lowercaseString: NO");
		}
	}
 
}
 
int main (int argc, const char * argv[]) {
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
 
	PrintPathInfo(); // Section 1
	PrintProcessInfo(); // Section 2
	PrintBookmarkInfo(); // Section 3
	PrintIntrospectionInfo(); // Section 4
 
    [pool release];
    return 0;
}
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