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;
- }
