Orchestra

Additional

Language
Kotlin
Version
1.0.0 (Oct 4, 2020)
Created
Oct 4, 2020
Updated
Oct 4, 2020
Owner
Jaewoong Eum (skydoves)
Contributor
Jaewoong Eum (skydoves)
1
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Usage

BalloonAnchor composable can be used in ConstraintLayout and it receives a constraint reference. In the below, BalloonAnchor references image composable. When clicked the image composable, balloon popup will be shown.

ConstraintLayout {
  val (image, title, content, message) = createRefs()

  // image, title, content, message //
  
  BalloonAnchor(
    reference = image,
    modifier = Modifier.aspectRatio(0.8f),
    balloon = BalloonUtils.getTitleBalloon(
      context = context,
      title = poster.name,
      lifecycle = lifecycleOwner
    ),
    onAnchorClick = { balloon, anchor -> balloon.show(anchor) },
    onClickIndication = RippleIndication(color = purple500)
  )

Or we can create a BalloonAnchor composable using Balloon.Factory.

BalloonAnchor(
  reference = image,
  modifier = Modifier.aspectRatio(0.8f),
  factory = MyBalloonFactory::class,
  onAnchorClick = { balloon, anchor -> balloon.show(anchor) },
  onBalloonClick = { },
  onBalloonDismiss = { },
  onBalloonInitialized = { content -> },
  onBalloonOutsideTouch = { content, event -> },
  onClickIndication = RippleIndication(color = purple500)
)

ColorPicker

And add a dependency code to your module's build.gradle file.

dependencies {
    implementation "com.github.skydoves:orchestra-colorpicker:$version"
}

Usage

ColorPicker composable implements a color picker with AlphaSlideBar and BrightnessSlideBar. We can create an alpha sidebar and brightness sidebar for changing saturation and lightness by tapping on the desired color. They should be used in children inner composable in ColorPicker, and they receive a colorPickerView as a parameter.

val (selectedColor, setSelectedColor) 
      = remember { mutableStateOf(ColorEnvelope(0)) }
ColorPicker(
    modifier = Modifier.fillMaxWidth().height(400.dp),
    onColorListener = { envelope, _ ->
      setSelectedColor(envelope)
    },
    initialColor = purple500,
    children = { colorPickerView ->
      Column(modifier = Modifier.padding(top = 32.dp)) {
        Box(modifier = Modifier.padding(vertical = 6.dp)) {
          AlphaSlideBar(
            modifier = Modifier.fillMaxWidth().height(30.dp)
              .clip(RoundedCornerShape(4.dp)),
            colorPickerView = colorPickerView
          )
        }
        Box(modifier = Modifier.padding(vertical = 6.dp)) {
          BrightnessSlideBar(
            modifier = Modifier.fillMaxWidth().height(30.dp)
              .clip(RoundedCornerShape(4.dp)),
            colorPickerView = colorPickerView
          )
        }
      }
    }
  )

AlphaTileBox

In a normal View, it can not represent ARGB colors accurately. Because a color will be mixed with the parent's background-color. For resolving it we can use AlphaTileBox composable. AlphaTileBox composable reflects ARGB colors.

AlphaTileBox(
  modifier = modifier.constrainAs(square) {
    bottom.linkTo(parent.bottom)
    centerHorizontallyTo(parent)
  }.size(64.dp).clip(RoundedCornerShape(4.dp))
) {
  it.setBackgroundColor(selectedColor.color)
}

Spinner

And add a dependency code to your module's build.gradle file.

dependencies {
    implementation "com.github.skydoves:orchestra-spinner:$version"
}

Usage

Spinner composable implements a lightweight dropdown popup spinner. Here is an example for creating a spinner using a sting array resource. We should use the String generic type for creating a spinner when we us a string array resource.

 val (selectedItem, setSelectedItem) 
      = remember { mutableStateOf("Choose a question") }
 Spinner<String>(
      text = selectedItem0,
      modifier = Modifier.fillMaxWidth().padding(16.dp)
        .background(blue200)
        .align(Alignment.CenterHorizontally),
       itemListRes = R.array.list_spinner,
      color = Color.White,
      style = MaterialTheme.typography.body2,
      textAlign = TextAlign.Center,
      showDivider = true,
      dividerColor = white87,
      overflow = TextOverflow.Ellipsis,
      maxLines = 1,
      spinnerPadding = 16.dp,
      spinnerBackgroundColor = MaterialTheme.colors.onBackground,
      onSpinnerItemSelected = { index, item ->
        setSelectedItem(item)
      }
    )

Here is an another example using a List for creating a spinner. In this case, we don't need to decide a generic type of Spinner.

 val coffeeList = remember { listOf("Americano", "Cold Brew", "Espresso", "Latte") }
 val (selectedItem1, setSelectedItem1) = remember { mutableStateOf("Choose your coffee") }
 Spinner(
      text = selectedItem1,
      modifier = Modifier.fillMaxWidth().padding(16.dp)
        .background(amber700)
        .align(Alignment.CenterHorizontally),
      itemList = coffeeList,
      color = Color.White,
      style = MaterialTheme.typography.body2,
      textAlign = TextAlign.Center,
      dividerColor = white87,
      overflow = TextOverflow.Ellipsis,
      maxLines = 1,
      spinnerPadding = 16.dp,
      spinnerBackgroundColor = MaterialTheme.colors.onBackground,
      onSpinnerItemSelected = { index, item ->
        setSelectedItem1(item)
      }
    )

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License

Designed and developed by 2020 skydoves (Jaewoong Eum)

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.