react-native bring sub view to front

Hi,

I am using popup menu for the post if i click the menu the menu box will appear behind the image .How can i put the popup to the front.

{item.upload_title}




  
  
    
      
      
        
         alert(`Delete`)}>
          Delete
          
      
    
  

 

CSS

setimage: {
  flex: 1,
   height: 275,
   width: "100%",
 },
 feedImage: {
   height: 250,
   borderRadius: 2,
   resizeMode: "stretch",
 },
 menu:{
   position: 'absolute',
   top:10,
   left:30
  },
  menuoption:{
  marginTop:30
  },
 menucontainer:{
   flex: 1,
   paddingTop: 20,
    elevation:1000, 
    zIndex:1000
 },