ios - Swift:How can i set button at the end of View Programmatically -


on button click have set uiwebview programmatically.

if(button.tag = 1) {     let webv:uiwebview = uiwebview(frame: cgrectmake(10, 80, (uiscreen.mainscreen().bounds.width)-20, (uiscreen.mainscreen().bounds.height)/2))     webview.loadhtmlstring(html!, baseurl: nil)  let button = uibutton(frame: cgrect(x: 100, y: 100, width: 100, height: 50))   button.backgroundcolor = .greencolor()   button.settitle("test button", forstate: .normal)   button.addtarget(self, action: #selector(buttonaction), forcontrolevents: .touchupinside)   webview.addsubview(button) self.view.addsubview(webv) }

i tried set button @ end of webview , not able set. tried many time still in progress. want set button @ end of webview have created programmatically.

use bounds property of parent view position subview.

let bottommargin = cgfloat(50) //space between button , bottom of screen let buttonsize = cgsize(width: 100, height: 50)  let button = uibutton(frame: cgrect(         x: 0, y: 0, width: buttonsize.width, height: buttonsize.height     ))  button.center = cgpoint(x: parentview.bounds.size.width / 2,                         y: parentview.bounds.size.height - buttonsize.height / 2 - bottommargin)

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