How i can remove react-native button shadow?

I successfully removed the shadow with elevation: 0 in the button's style.

I don't think thats possible. If you don't need a button elevation (shadow), you may create your own react-native button using using Touchables(TochableOpacity, TochableHighlight, TouchableWithoutFeedback). And it's not a big deal.

Please refer to the docs.

renderButton = () => { 
  return ( 
    <TouchableOpacity onPress={this._onPressButton}> 
      <ImageBackground style={styles.button} source={require('./myButton.png')} >
      <Text>Press me</Text>
      </ImageBackground>
    </TouchableOpacity>
  );
}

you can't use style="box-shadow: 0px 0px 0p;" at all there is multi way to approach this i personal use elevation: 0

if you use router-flux for navigation pls consider that icons appear with shadow just on android but no shadow exist for ios version by default