ios - Custom UIButton doesn't show up -

i'm making game , everything's working fine. there seems problem custom button made:

let button = uibutton(type: uibuttontype.custom) uibutton let image = uiimage(named: "blueplaybutton") button.setimage(image, forstate: uicontrolstate.normal) button.frame = cgrectmake(self.size.width/2, self.size.height * 0.15, 300, 200) button.layer.zposition = 1  self.view?.addsubview(button) 

when run application, button doesn't appear. what's wrong code, there missing?

i integrating ui elements inside sprite-kit scene, , have bit tricky. if give me more information other elements of class, if uiview or skscene (skview), or sknode. when mixing both approaches pain.

but information gave can tell have same problem , solved changing method added ui elements on skscene. before on viewdidload should on viewdidappear.

example (objective-c):

• the icarousel ui element (not skview or sknode).

`

-(void)didmovetoview:(skview *)view { //your code in objective-c uibutton * button  = uibutton uibutton * button  = [uibutton buttonwithtype:uibuttontypecustom]; uiimage * image = [uiimage imagenamed:@"blueplaybutton"]; [button setimage:image forstate:uicontrolstatenormal]; [button setframe:cgrectmake(self.size.width/2, self.size.height * 0.15, 300, 200)]; button.layer.zposition=1; [self.view addsubview:button]; } 

`

• also, double check zposition of button , other elements.

• make sure image being loaded debugger. extension (.png) might happening prevent so. ( suggested @matt on comments)

• i strongly recommend avoid mixing uikit elements sprite-kit elements.

• please give more information if not solve problem ;)

edit: example of how the corresponding uibutton in sprite-kit ( simple way).

(just taken question - setting buttons in skscene )

you use skspritenode button, , when user touches, check if node touched. use skspritenode's name property identify node:

//fire button - (skspritenode *)firebuttonnode {     skspritenode *firenode = [skspritenode spritenodewithimagenamed:@"firebutton.png"];     firenode.position = cgpointmake(firebuttonx,firebuttony);     firenode.name = @"firebuttonnode";//how node identified later     firenode.zposition = 1.0;     return firenode; } 

add node scene:

[self addchild: [self firebuttonnode]]; 

handle touches:

//handle touch events - (void)touchesbegan:(nsset *)touches withevent:(uievent *)event {     uitouch *touch = [touches anyobject];     cgpoint location = [touch locationinnode:self];     sknode *node = [self nodeatpoint:location];      //if fire button touched, bring rain     if ([node.name isequaltostring:@"firebuttonnode"]) {          //do whatever...     } }