什么是从NSURL中提取和删除方案名称和//的正确方法？
例如：
note://Hello -> @"Hello" calc://3+4/5 -> @"3+4/5"
所以
NSString *scheme = @"note://"; NSString *path = @"Hello";
供以后使用：
[[NSNotificationCenter defaultCenter] postNotificationName:scheme object:path];
解决方法
你可以这样看(大多数未经测试的代码,但你明白了)：
- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url
{
NSLog(@"url: %@",url);
NSLog(@"scheme: %@",[url scheme]);
NSLog(@"query: %@",[url query]);
NSLog(@"host: %@",[url host]);
NSLog(@"path: %@",[url path]);
NSDictionary * dict = [self parseQueryString:[url query]];
NSLog(@"query dict: %@",dict);
}
所以你可以这样做：
NSString * strNoURLScheme = [strMyURLWithScheme stringByReplacingOccurrencesOfString:[url scheme] withString:@""]; NSLog(@"URL without scheme: %@",strNoURLScheme);
parseQueryString
- (NSDictionary *)parseQueryString:(NSString *)query
{
NSMutableDictionary *dict = [[[NSMutableDictionary alloc] initWithCapacity:6] autorelease];
NSArray *pairs = [query componentsSeparatedByString:@"&"];
for (NSString *pair in pairs) {
NSArray *elements = [pair componentsSeparatedByString:@"="];
NSString *key = [[elements objectAtIndex:0] stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSString *val = [[elements objectAtIndex:1] stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
[dict setObject:val forKey:key];
}
return dict;
}
