1.cube escape在ios怎么设置中文?
2.CFStringRef是什么编程语言
3.CFStringRefåNSString
4.怎样获取wifi列表
5.å¦ä½è·åwifiå表
cube escape在ios怎么设置中文?
cube escape在ios设置中文的办法:使用CFStringRef的方法:
sUrl = (NSString*)CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault, (CFStringRef)sUrl, nil, nil, kCFStringEncodingUTF8);
使用NSString的方法:
NSString* string2 = [string1stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSString* string1 = [string2stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding]。
CFStringRef是bim图源码什么编程语言
CFStringRef,应该是内核绘制源码iOS或MacOS App下用到的东西,隶属于CoreFundation框架,pg源码学习该框架由苹果公司掌管。delphi源码打包
CFStringRef是挖软件源码一个内部指向CFString对象的一个引用。
使用该结构的语言有:C++,Objective-C,Swift
CFStringRefåNSString
CFStringRef a = CFSTR("a");
NSString *b = @"b";
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äºãèNSStringç@æäºä¸ä¸æ ·ï¼åºè¯¥å__builtin___CFStringMakeConstantStringæäºç±»ä¼¼ï¼å è®¸ä½ å¤çº¿ç¨ä½¿ç¨ï¼åæ ·ä¹ä¸éè¦ä½ èªå·±å»releaseï¼å¯ä»¥ç解为bæ¯ä¸ä¸ªautoreleaseç对象ï¼ç³»ç»ä¼èªå·±èªå¨æ¶åbãå¦ææ³é¿æ¶é´ææbé£å°±retainï¼ä½ä¸è¦å¿äºreleaseã
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CFStringRef aCFString = (CFStringRef)aNSString;
NSString *aNSString = (NSString *)aCFString;
怎样获取wifi列表
只能获取当前的SSID
- (id)fetchSSIDInfo
{
NSString *currentSSID = @"";
CFArrayRef myArray = CNCopySupportedInterfaces();
if (myArray != nil){
NSDictionary* myDict = (__bridge NSDictionary *) CNCopyCurrentNetworkInfo(CFArrayGetValueAtIndex(myArray, 0));
if (myDict!=nil){
currentSSID=[myDict valueForKey:@"SSID"];
} else {
currentSSID=@"<<NONE>>";
}
} else {
currentSSID=@"<<NONE>>";
}
NSArray *ifs = (__bridge id)CNCopySupportedInterfaces();
NSLog(@"%s: Supported interfaces: %@", __func__, ifs);
id info = nil;
for (NSString *ifnam in ifs) {
info = (__bridge id)CNCopyCurrentNetworkInfo((CFStringRef)CFBridgingRetain(ifnam));
if (info && [info count]) {
break;
}
}
return info;
}
å¦ä½è·åwifiå表
åªè½è·åå½åçSSID
- (id)fetchSSIDInfo
{
NSString *currentSSID = @"";
CFArrayRef myArray = CNCopySupportedInterfaces();
if (myArray != nil){
NSDictionary* myDict = (__bridge NSDictionary *) CNCopyCurrentNetworkInfo(CFArrayGetValueAtIndex(myArray, 0));
if (myDict!=nil){
currentSSID=[myDict valueForKey:@"SSID"];
} else {
currentSSID=@"<<NONE>>";
}
} else {
currentSSID=@"<<NONE>>";
}
NSArray *ifs = (__bridge id)CNCopySupportedInterfaces();
NSLog(@"%s: Supported interfaces: %@", __func__, ifs);
id info = nil;
for (NSString *ifnam in ifs) {
info = (__bridge id)CNCopyCurrentNetworkInfo((CFStringRef)CFBridgingRetain(ifnam));
if (info && [info count]) {
break;
}
}
return info;
}
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