Why button display false (image)

[nExt]

Hello i try making fappy bird demo in tutorial ..

i fisnished and i want fix interface game..but i have problem ..

size game is : 400x 490

i create button play 

 

var sprite = game.add.button(game.world.centerX, game.world.centerY +20, 'play', menu_state.start,this);

 but it display  not in center (button play.png size 70x70)

 

and when i try in in emulator :

 

 

-> all of object display not true, so i want code to more device.. please help me .. i don't have  more experience ..

 

and finally question : have phaser is good framwork for desktop, not for mobile .. i don't see more game android or ios write by phaser..(and i see some topic , have bug it not run or have bug for android..) 

[BigRob154]

Try this. I had the same issues, this worked for me.

var sprite = game.add.button(game.width/2, game.height/2 +20, 'play', menu_state.start,this);sprite.anchor.set(0.5, 0.5);

[nExt]

 

Try this. I had the same issues, this worked for me.

var sprite = game.add.button(game.width/2, game.height/2 +20, 'play', menu_state.start,this);sprite.anchor.set(0.5, 0.5);

i tried this.. but it not change !

[Heppell08]

var sprite = game.add.button(game.world.width/2, game.world.height/2 +20, 'play', menu_state.start,this)

Use the world to center it better.