Why don't Indication work for Button or Icons?-CodePudding

As solved here, I disable the tap flashing by setting the indication to null.

However, this is not working for Button or Icons?!

CodePudding user response：

You can use

Modifier.pointerInput(Unit) {
    detectTapGestures(
        onPress = { /* Called when the gesture starts */ },
        onDoubleTap = { /* Called on Double Tap */ },
        onLongPress = { /* Called on Long Press */ },
        onTap = { /* Called on Tap */ }
    )
}

instead of onClick().It' will not show the wave effect when click the button.

CodePudding user response：

In the Button you can't use the indication=null in the clickable modifier since it is defined internally by the component which uses indication = rememberRipple(). This creates and remembers a Ripple using values provided by RippleTheme.

You can provide a custom LocalRippleTheme to override the default behaviour.

Something like:

CompositionLocalProvider(LocalRippleTheme provides NoRippleTheme) {
    Button(
        onClick = { /*...*/ },
    ) {
       //...
    }
}

with:

private object NoRippleTheme : RippleTheme {
    @Composable
    override fun defaultColor() = Color.Unspecified

    @Composable
    override fun rippleAlpha(): RippleAlpha = RippleAlpha(0.0f,0.0f,0.0f,0.0f)
}