iphone - How to connect two buttons( dots) with a line in iOS? -


this question has answer here:

i want make project in have touch 1 dot , connect dot , after connect dot. when connect 1 dot dot line create between them.

actually when click/ touch 1 dot line show , when touch second dot line create between 2 dots.

i not able yet, trying , searching on net unable find solution yet.

this need 1 https://play.google.com/store/apps/details?id=zok.android.dots&hl=en

i think done uigesture recogniser? or else? how can achieve this?

any idea or suggestions experts highly welcome.

modify code according requiements

cgcontextref context = uigraphicsgetcurrentcontext(); uicolor *currentcolor = [uicolor blackcolor]; cgcontextsetstrokecolorwithcolor(context, currentcolor.cgcolor); cgcontextsetlinewidth(context, 2.0); cgcontextbeginpath(context); cgcontextmovetopoint(context, touchstart.x, touchstart.y); cgcontextaddlinetopoint(context, touchend.x, touchend.y); cgcontextstrokepath(context);

@nisha:

make gloabal instances of cgpoint touchstart , touchend , them this:

- (void)touchesbegan:(nsset *)touches withevent:(uievent *)event{ touchend = cgpointzero; touchstart = cgpointzero; uitouch *touch = [touches anyobject]; cgpoint point = [touch locationinview:self]; nslog(@"start point >> %@",nsstringfromcgpoint(point));     touchstart = point; }

}

- (void)touchesmoved:(nsset *)touches withevent:(uievent *)event {     uitouch *touch = [touches anyobject];     cgpoint point = [touch locationinview:self];     touchend = point;      [self setneedsdisplay];  }

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