/
gesture.kt
156 lines (144 loc) · 4.37 KB
/
gesture.kt
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package co.joebirch.composeplayground.core
import androidx.compose.foundation.clickable
import androidx.compose.foundation.gestures.detectTapGestures
import androidx.compose.material.Text
import androidx.compose.foundation.layout.*
import androidx.compose.material.Snackbar
import androidx.compose.runtime.Composable
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.geometry.Offset
import androidx.compose.ui.input.pointer.pointerInput
import androidx.compose.ui.unit.dp
import co.joebirch.composeplayground.ComposableLayout
object GestureView : ComposableLayout {
@Composable
override fun build() {
Column(
modifier = Modifier
.fillMaxSize()
.padding(32.dp),
verticalArrangement = Arrangement.SpaceEvenly,
horizontalAlignment = Alignment.CenterHorizontally
) {
ZoomComponent()
}
}
}
@Composable
fun TapComponent() {
val showSnackbar = remember { mutableStateOf(false) }
Box {
Text(
text = "Jetpack Compose",
modifier = Modifier
.padding(16.dp)
.clickable {
showSnackbar.value = !showSnackbar.value
}
)
if (showSnackbar.value) {
Snackbar(
content = {
Text(text = "Jetpack Compose")
}
)
}
}
}
@Composable
fun zoomableComponent() {
val showSnackbar = remember { mutableStateOf(false) }
Column(horizontalAlignment = Alignment.CenterHorizontally) {
Text(
text = "Jetpack Compose",
modifier = Modifier
.padding(16.dp)
.clickable {
showSnackbar.value = !showSnackbar.value
}
)
if (showSnackbar.value) {
Snackbar(content = {
Text(text = "Tap again to hide")
})
}
}
}
@Composable
fun DoubleTapComponent() {
val showSnackbar = remember { mutableStateOf(false) }
Box {
Text(
text = "Jetpack Compose",
modifier = Modifier
.padding(16.dp)
.pointerInput(Unit) {
detectTapGestures {
showSnackbar.value = !showSnackbar.value
}
}
)
if (showSnackbar.value) {
Snackbar(content = {
Text(text = "Double tap again to hide")
})
}
}
}
@Composable
fun LongPressComponent() {
val showSnackbar = remember { mutableStateOf(false) }
Column(horizontalAlignment = Alignment.CenterHorizontally) {
Text(
text = "Jetpack Compose",
modifier = Modifier
.padding(16.dp)
.pointerInput(Unit) {
detectTapGestures(onLongPress = {
showSnackbar.value = !showSnackbar.value
})
}
)
if (showSnackbar.value) {
Snackbar(content = {
Text(text = "Long press the text to hide")
})
}
}
}
@Composable
fun ZoomComponent() {
var scale = remember { mutableStateOf(1f) }
var translate = remember { mutableStateOf(Offset(0f, 0f)) }
/*
Image(
bitmap = imageResource(id = R.drawable.screen),
contentDescription = "my description",
modifier = Modifier
.graphicsLayer(
scaleX = if (scale.value < 1) 1f else scale.value,
scaleY = if (scale.value < 1) 1f else scale.value,
translationX = translate.value.x,
translationY = translate.value.y
)
.fillMaxSize()
.rawDragGestureFilter(object : DragObserver {
override fun onDrag(dragDistance: Offset): Offset {
if (scale.value > 1) {
Log.e("LOG", translate.value.x.toString())
translate.value = translate.value.plus(dragDistance)
}
return super.onDrag(dragDistance)
}
})
.zoomable(
onZoomDelta = {
scale.value *= it
Log.e("VALUE", it.toString())
}
))
*/
}