javascript - Unable to highlight text in UIWebview? -


i have been working on highlighting text in uiwebview. in used canperformaction method in call javascript function highlight text. lets take text in webview "the part confusing , sporadic". here if select text "so" alone there no problem , highlighting text.

but lets take select more 1 word "so confusing and" highlights runs in infinite loop , keep on calling canperformaction method. not figure out why happening.

in ipad if long press on text selected. method gets called here , highlights selected text. if drag blue lines select further text (i hope u can understand saying) in canperformaction called , runs infinite loop.

i checking in simulator.

updated: tried things have told follows

nsstring *selectedstring = @"function getseltext()"                                 "{"                                 "alert('document.execute');"                                 "var sel = window.getselection();"                                 "if(!sel.iscollapsed){"                                 "var selrange = sel.getrangeat(0);"                                 "document.designmode = 'on';"                                 "sel.removeallranges();"                                 "sel.addrange(selrange);"                                 "alert('document.execute 2');"                                 "document.execcommand('hilitecolor', false, '#ffffcc');"                                 "alert('document.execute 3');"                                 "sel.removeallranges();"                                 "document.designmode = 'off';"                                 "alert('document.execute 4');"                                 "}"                                 "}"; [webview stringbyevaluatingjavascriptfromstring:selectedstring];  have given above code in webviewdidfinishload.  in canperformaction gave -(bool)canperformaction:(sel)action withsender:(id)sender {      if(action == @selector(selectall:)){          nsstring *sethighlightcolorruling = [nsstring stringwithformat:@"getseltext()"];         [webview stringbyevaluatingjavascriptfromstring:sethighlightcolorruling];          return yes;      }     return [super canperformaction:action withsender:sender];  }

while running in simulator alert till last "document.execute 4" appearing there no effect in webview

please refer link:

uiwebview text highlighting solution

it may helpful you.

good luck !!!


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