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PagerScaffold: add swipe down gesture to expand notification shade

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This commit is contained in:
MM20 2022-05-21 17:29:26 +02:00
parent 4703cc7085
commit 237361badf
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GPG Key ID: 0B61A8F2DEAFA389
2 changed files with 87 additions and 0 deletions
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47
ui/src/main/java/de/mm20/launcher2/ui/launcher/PagerScaffold.kt
View File

@ -1,6 +1,7 @@
package de.mm20.launcher2.ui.launcher
import android.app.Activity
import android.util.Log
import android.view.WindowManager
import androidx.activity.compose.BackHandler
import androidx.compose.animation.AnimatedVisibility
@ -10,6 +11,8 @@ import androidx.compose.animation.slideOut
import androidx.compose.foundation.ExperimentalFoundationApi
import androidx.compose.foundation.gestures.LocalOverScrollConfiguration
import androidx.compose.foundation.gestures.Orientation
import androidx.compose.foundation.gestures.detectDragGestures
import androidx.compose.foundation.gestures.detectVerticalDragGestures
import androidx.compose.foundation.layout.*
import androidx.compose.foundation.rememberScrollState
import androidx.compose.foundation.verticalScroll
@ -24,11 +27,17 @@ import androidx.compose.runtime.*
import androidx.compose.runtime.livedata.observeAsState
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.geometry.Offset
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.input.nestedscroll.NestedScrollConnection
import androidx.compose.ui.input.nestedscroll.NestedScrollSource
import androidx.compose.ui.input.nestedscroll.nestedScroll
import androidx.compose.ui.input.pointer.pointerInput
import androidx.compose.ui.platform.LocalContext
import androidx.compose.ui.platform.LocalDensity
import androidx.compose.ui.res.stringResource
import androidx.compose.ui.unit.IntOffset
import androidx.compose.ui.unit.Velocity
import androidx.compose.ui.unit.dp
import androidx.lifecycle.viewmodel.compose.viewModel
import com.google.accompanist.pager.ExperimentalPagerApi
@ -42,6 +51,7 @@ import de.mm20.launcher2.ui.launcher.search.SearchBarLevel
import de.mm20.launcher2.ui.launcher.search.SearchColumn
import de.mm20.launcher2.ui.launcher.search.SearchVM
import de.mm20.launcher2.ui.launcher.widgets.WidgetColumn
import de.mm20.launcher2.ui.utils.rememberNotificationShadeController
import kotlin.math.roundToInt
@OptIn(
@ -133,6 +143,42 @@ fun PagerScaffold(
}
}
val notificationDragThreshold = with(LocalDensity.current) {200.dp.toPx()}
val notificationShadeController = rememberNotificationShadeController()
val nestedScrollConnection = remember {
object: NestedScrollConnection {
private var pullDownTotalY: Float? = 0f
override fun onPreScroll(available: Offset, source: NestedScrollSource): Offset {
if (widgetsScrollState.value == 0 && source == NestedScrollSource.Drag) {
val diff = widgetsScrollState.value - available.y
var totalY = pullDownTotalY
if (totalY != null) {
totalY += diff
if (totalY < -notificationDragThreshold) {
notificationShadeController.expandNotifications()
pullDownTotalY = null
} else {
pullDownTotalY = totalY
}
return Offset(0f, -diff)
} else {
return available
}
}
return super.onPreScroll(available, source)
}
override suspend fun onPreFling(available: Velocity): Velocity {
if (pullDownTotalY == null) {
pullDownTotalY = 0f
return available
}
return super.onPreFling(available)
}
}
}
Box(
modifier = modifier
) {
@ -193,6 +239,7 @@ fun PagerScaffold(
modifier = Modifier
.requiredWidth(width)
.fillMaxHeight()
.nestedScroll(nestedScrollConnection)
.verticalScroll(widgetsScrollState)
.padding(start = 8.dp, end = 8.dp, top = 8.dp, bottom = 64.dp)
.padding(top = editModePadding),

40
ui/src/main/java/de/mm20/launcher2/ui/utils/NotificationShadeController.kt Normal file
View File

@ -0,0 +1,40 @@
package de.mm20.launcher2.ui.utils
import android.annotation.SuppressLint
import android.content.Context
import android.util.Log
import androidx.compose.runtime.Composable
import androidx.compose.runtime.remember
import androidx.compose.ui.platform.LocalContext
import java.lang.reflect.InvocationTargetException
class NotificationShadeController(
private val context: Context
) {
@SuppressLint("WrongConstant")
fun expandNotifications() {
Log.e("MM20", "pull down")
try {
val statusBarService = context.getSystemService("statusbar")
Class.forName("android.app.StatusBarManager")
.getMethod("expandNotificationsPanel")
.invoke(statusBarService)
} catch (e: IllegalAccessException) {
Log.e("MM20", Log.getStackTraceString(e))
} catch (e: InvocationTargetException) {
Log.e("MM20", Log.getStackTraceString(e))
} catch (e: NoSuchMethodException) {
Log.e("MM20", Log.getStackTraceString(e))
} catch (e: ClassNotFoundException) {
Log.e("MM20", Log.getStackTraceString(e))
}
}
}
@Composable
fun rememberNotificationShadeController(): NotificationShadeController {
val context = LocalContext.current
return remember(context) {
NotificationShadeController(context)
}
}