lua dynamic Fix online bug Practice (iOS)
using the wax framework, wax cancombine the LUA scripting language with the native OBJECTIVE-C application programming Interface (API). This means that you can use any and all of the objective-c classes and frameworks from within Lua.1.wax.framework problem Https://github.com/probablycorey/wax This framework has not been updated for 4 years, and does not support 64-bit. Use it to replace the original Viewcontroller function does not take effect. So replace with https://github.com/maxfong/WaxPatch_X64
2. Pull the wax frame in or out of operation, error
It can be seen that the wrong meaning isTcpservererrordomain This flag is defined repeatedly in wax and wax_server,Solution: Note the Tcpservererrordomain in the wax_server.
3. Test to fix bugs dynamically.To change the color of a page as an example, originally displayed as white, and now the version is sent out, I want to change the color to red (1) each time you launch the app, create a dynamically loaded Lua file entry (write below) and start the Lua file:Wax_start("Change.lua", nil);(2) the page originally has a method:- (void) setbackgroundcolor{ NSLog (@ "Test"); }If you do not have this method to hook other methods, then use LUA to write the same implementation and add a change in the background color method.(3) How to write Change.lua color change: waxclass{"Viewcontroller", Uiviewcontroller} functionsetbackgroundcolor (self) Self:view (): SetBackgroundColor (Uicolor:redcolor ())End
(4) Ok, the SetBackgroundColor method has been replaced by the Lua modified method when running
4. Creating a portal to dynamically load LUA files- (BOOL) Application: (uiapplication*) Application didfinishlaunchingwithoptions: (nsdictionary*) Launchoptions {
[ SelfDownloadluafile];
Return YES;
}
- (void) Downloadluafile {
Dispatch_async(Dispatch_get_main_queue(), ^{ NSString*doc = [Nssearchpathfordirectoriesindomains(nsdocumentdirectory,Nsuserdomainmask,YES)Objectatindex:0]; NSString*directory = [Doc stringbyappendingpathcomponent:@ "Change.lua"]; Nsurl *url=[Nsurlurlwithstring:@ "Http://localhost/change.lua"];
nsurlrequest *request=[nsurlrequestRequestwithurl: URL];
Nserror *error=nil;
NSData *data = [nsurlconnectionsendsynchronousrequest: RequestReturningresponse: NilError:&error];
if ([Data length]>0)
{
NSLog(@"Download Successful");
if ([Data WriteToFile:d irectoryatomically:YES]){ NSLog(@"saved successfully"); nsstring *luafilepath = [[ nsstring alloc initwithformat : @ "%@/?. Lua;%@/?/init.lua;%@/?. DAT; " ,doc, Doc,doc]; setenv(lua_path, [Luafilepathutf8string], 1 ); I almost missed it. Set path Wax_start("Change.lua", nil);
}else {
NSLog(@"Save failed");
}
} else {
NSLog(@"download failed, reason for failure:%@", error);
}
});}
5. Then a bug in the online version can be fixed in the issued Change.lua file.
6. What if there is a more complex bug? Learn more about LUA and theoretically what bugs can be fixed.
Lua dynamic Fix online bug practice (iOS)
