├── app
├── .gitignore
├── src
│ └── main
│ │ ├── res
│ │ ├── values
│ │ │ ├── strings.xml
│ │ │ └── themes.xml
│ │ ├── mipmap-hdpi
│ │ │ ├── ic_launcher.webp
│ │ │ └── ic_launcher_round.webp
│ │ ├── mipmap-mdpi
│ │ │ ├── ic_launcher.webp
│ │ │ └── ic_launcher_round.webp
│ │ ├── mipmap-xhdpi
│ │ │ ├── ic_launcher.webp
│ │ │ └── ic_launcher_round.webp
│ │ ├── drawable
│ │ │ ├── img_top_bar_dog_1.jpg
│ │ │ ├── img_top_bar_dog_2.jpg
│ │ │ ├── img_top_bar_dog_3.jpg
│ │ │ └── ic_launcher_background.xml
│ │ ├── mipmap-xxhdpi
│ │ │ ├── ic_launcher.webp
│ │ │ └── ic_launcher_round.webp
│ │ ├── mipmap-xxxhdpi
│ │ │ ├── ic_launcher.webp
│ │ │ └── ic_launcher_round.webp
│ │ ├── mipmap-anydpi-v26
│ │ │ ├── ic_launcher.xml
│ │ │ └── ic_launcher_round.xml
│ │ └── drawable-v24
│ │ │ └── ic_launcher_foreground.xml
│ │ ├── AndroidManifest.xml
│ │ └── java
│ │ └── com
│ │ └── flaringapp
│ │ └── compose
│ │ └── topbar
│ │ ├── ui
│ │ ├── theme
│ │ │ ├── Color.kt
│ │ │ ├── Type.kt
│ │ │ └── Theme.kt
│ │ └── samples
│ │ │ ├── CollapsingTopBarSample.kt
│ │ │ ├── gallery
│ │ │ ├── SamplesGalleryGroup.kt
│ │ │ ├── SamplesGallery.kt
│ │ │ └── SamplesGalleryRow.kt
│ │ │ ├── CollapsingTopBarSampleDogDefaults.kt
│ │ │ ├── scaffold
│ │ │ ├── ScaffoldControlsTitleText.kt
│ │ │ ├── ScaffoldVisibilityControls.kt
│ │ │ ├── ScaffoldColumnDirectionControls.kt
│ │ │ ├── ScaffoldScrollControls.kt
│ │ │ └── ScaffoldStateControls.kt
│ │ │ ├── common
│ │ │ ├── SampleExpandRequestHandler.kt
│ │ │ ├── SampleTopBarImage.kt
│ │ │ ├── SampleVerticalFadingEdge.kt
│ │ │ ├── SampleFilterChips.kt
│ │ │ ├── SampleTopAppBar.kt
│ │ │ ├── SampleContent.kt
│ │ │ └── SampleTopBarBanner.kt
│ │ │ ├── basic
│ │ │ ├── EnterAlwaysCollapsedSample.kt
│ │ │ ├── BasicScaffoldSample.kt
│ │ │ ├── CollapsingSample.kt
│ │ │ └── CollapsingExitSample.kt
│ │ │ ├── advanced
│ │ │ ├── ParallaxCollapsingSample.kt
│ │ │ ├── SnapCollapsingSample.kt
│ │ │ ├── AppBarShadowSample.kt
│ │ │ ├── AppBarScrimSample.kt
│ │ │ ├── FloatingElementSample.kt
│ │ │ └── ManualCollapsingControlsSample.kt
│ │ │ ├── CollapsingTopBarSampleGroups.kt
│ │ │ └── column
│ │ │ ├── FullyCollapsibleColumnSample.kt
│ │ │ ├── PartiallyCollapsibleColumnSample.kt
│ │ │ ├── ColumnInStackSample.kt
│ │ │ ├── AlternatelyCollapsibleColumnSample.kt
│ │ │ └── ColumnMovingElementSample.kt
│ │ ├── Common.kt
│ │ └── MainActivity.kt
├── proguard-rules.pro
└── build.gradle.kts
├── ComposeCollapsingTopBar
├── .gitignore
├── consumer-rules.pro
├── src
│ ├── main
│ │ ├── AndroidManifest.xml
│ │ └── java
│ │ │ └── com
│ │ │ └── flaringapp
│ │ │ └── compose
│ │ │ └── topbar
│ │ │ ├── CollapsingTopBarProgressListener.kt
│ │ │ ├── nestedscroll
│ │ │ ├── CollapsingTopBarNestedScrollHandler.kt
│ │ │ ├── CollapsingTopBarNestedScrollSnap.kt
│ │ │ ├── CollapsingTopBarNestedScrollCollapse.kt
│ │ │ ├── MultiNestedScrollConnection.kt
│ │ │ ├── CollapsingTopBarNestedScrollStrategy.kt
│ │ │ └── CollapsingTopBarNestedScrollExpand.kt
│ │ │ ├── snap
│ │ │ ├── CollapsingTopBarSnapScope.kt
│ │ │ └── CollapsingTopBarSnapBehavior.kt
│ │ │ ├── dependent
│ │ │ └── CollapsingTopBarDependentStateConnection.kt
│ │ │ ├── nestedcollapse
│ │ │ └── CollapsingTopBarNestedCollapseState.kt
│ │ │ ├── CollapsingTopBarControls.kt
│ │ │ └── scaffold
│ │ │ └── CollapsingTopBarScaffoldScrollMode.kt
│ └── androidTest
│ │ └── java
│ │ └── com
│ │ └── flaringapp
│ │ └── compose
│ │ └── topbar
│ │ └── ExampleInstrumentedTest.kt
├── proguard-rules.pro
└── build.gradle.kts
├── docs
└── assets
│ ├── scrim.gif
│ ├── floating.gif
│ ├── manual.gif
│ ├── parallax.gif
│ ├── shadow.gif
│ ├── snapping.gif
│ ├── collapsing_mode_exit.gif
│ ├── collapsing_column_full.gif
│ ├── collapsing_column_stack.gif
│ ├── collapsing_mode_regular.gif
│ ├── cover_collapsing_column.gif
│ ├── cover_collapsing_stack.gif
│ ├── collapsing_column_reverse.gif
│ ├── collapsing_column_partially.gif
│ ├── collapsing_column_moving_element.gif
│ ├── collapsing_column_multiple_fixed.gif
│ ├── collapsing_mode_exit_expand_always.gif
│ ├── collapsing_mode_enter_always_collapsed.gif
│ └── collapsing_mode_regular_expand_always.gif
├── .idea
├── copyright
│ ├── profiles_settings.xml
│ └── Apache.xml
└── scopes
│ └── Copyright_Scope.xml
├── gradle
├── wrapper
│ ├── gradle-wrapper.jar
│ └── gradle-wrapper.properties
└── libs.versions.toml
├── .gitignore
├── .github
└── workflows
│ ├── ci.yml
│ └── publish-release.yml
├── settings.gradle.kts
├── gradle.properties
├── .editorconfig
├── gradlew.bat
└── gradlew
/app/.gitignore:
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/.gitignore:
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1 | *.iml
2 | .gradle
3 | /local.properties
4 | /.idea/*
5 | !/.idea/scopes
6 | !/.idea/copyright
7 | .DS_Store
8 | /build
9 | /.kotlin
10 | /captures
11 | .externalNativeBuild
12 | .cxx
13 | local.properties
14 |
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2 |
3 |
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/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml:
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2 |
3 |
4 |
5 |
6 |
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/.github/workflows/ci.yml:
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1 | name: Run PR checks
2 |
3 | on:
4 | pull_request:
5 | branches: [ main ]
6 |
7 | jobs:
8 | lint_verify:
9 | name: Run linter checks
10 | runs-on: ubuntu-latest
11 |
12 | steps:
13 | - name: Checkout
14 | uses: actions/checkout@v4
15 |
16 | - name: Set up JDK 17
17 | uses: actions/setup-java@v4
18 | with:
19 | distribution: 'temurin'
20 | java-version: 17
21 |
22 | - name: Grant execute permission for gradlew
23 | run: chmod +x ./gradlew
24 |
25 | - name: Run ktlint Linter
26 | run: ./gradlew ktlintCheck
27 |
28 | - name: Run Android Linter
29 | run: ./gradlew lintRelease
30 |
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/settings.gradle.kts:
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1 | @file:Suppress("UnstableApiUsage")
2 |
3 | pluginManagement {
4 | repositories {
5 | google {
6 | content {
7 | includeGroupByRegex("com\\.android.*")
8 | includeGroupByRegex("com\\.google.*")
9 | includeGroupByRegex("androidx.*")
10 | }
11 | }
12 | mavenCentral()
13 | gradlePluginPortal()
14 | }
15 | }
16 | dependencyResolutionManagement {
17 | repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
18 | repositories {
19 | google()
20 | mavenCentral()
21 | }
22 | }
23 |
24 | rootProject.name = "ComposeCollapsingTopBar"
25 | include(":app")
26 | include(":ComposeCollapsingTopBar")
27 |
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/.idea/copyright/Apache.xml:
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1 |
2 |
3 |
4 |
5 |
6 |
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/app/proguard-rules.pro:
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1 | # Add project specific ProGuard rules here.
2 | # You can control the set of applied configuration files using the
3 | # proguardFiles setting in build.gradle.
4 | #
5 | # For more details, see
6 | # http://developer.android.com/guide/developing/tools/proguard.html
7 |
8 | # If your project uses WebView with JS, uncomment the following
9 | # and specify the fully qualified class name to the JavaScript interface
10 | # class:
11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
12 | # public *;
13 | #}
14 |
15 | # Uncomment this to preserve the line number information for
16 | # debugging stack traces.
17 | #-keepattributes SourceFile,LineNumberTable
18 |
19 | # If you keep the line number information, uncomment this to
20 | # hide the original source file name.
21 | #-renamesourcefileattribute SourceFile
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/ComposeCollapsingTopBar/proguard-rules.pro:
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1 | # Add project specific ProGuard rules here.
2 | # You can control the set of applied configuration files using the
3 | # proguardFiles setting in build.gradle.
4 | #
5 | # For more details, see
6 | # http://developer.android.com/guide/developing/tools/proguard.html
7 |
8 | # If your project uses WebView with JS, uncomment the following
9 | # and specify the fully qualified class name to the JavaScript interface
10 | # class:
11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
12 | # public *;
13 | #}
14 |
15 | # Uncomment this to preserve the line number information for
16 | # debugging stack traces.
17 | #-keepattributes SourceFile,LineNumberTable
18 |
19 | # If you keep the line number information, uncomment this to
20 | # hide the original source file name.
21 | #-renamesourcefileattribute SourceFile
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/gradle/wrapper/gradle-wrapper.properties:
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1 | #
2 | # Copyright 2025 Flaringapp
3 | #
4 | # Licensed under the Apache License, Version 2.0 (the "License");
5 | # you may not use this file except in compliance with the License.
6 | # You may obtain a copy of the License at
7 | #
8 | # http://www.apache.org/licenses/LICENSE-2.0
9 | #
10 | # Unless required by applicable law or agreed to in writing, software
11 | # distributed under the License is distributed on an "AS IS" BASIS,
12 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | # See the License for the specific language governing permissions and
14 | # limitations under the License.
15 | #
16 |
17 | #Fri Aug 15 21:56:26 EEST 2025
18 | distributionBase=GRADLE_USER_HOME
19 | distributionPath=wrapper/dists
20 | distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip
21 | zipStoreBase=GRADLE_USER_HOME
22 | zipStorePath=wrapper/dists
23 |
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/app/src/main/AndroidManifest.xml:
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1 |
2 |
4 |
5 |
13 |
14 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
29 |
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/app/src/main/java/com/flaringapp/compose/topbar/ui/theme/Color.kt:
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1 | /*
2 | * Copyright 2024 Flaringapp
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.flaringapp.compose.topbar.ui.theme
18 |
19 | import androidx.compose.ui.graphics.Color
20 |
21 | val Purple80 = Color(0xFFD0BCFF)
22 | val PurpleGrey80 = Color(0xFFCCC2DC)
23 | val Pink80 = Color(0xFFEFB8C8)
24 |
25 | val Purple40 = Color(0xFF6650a4)
26 | val PurpleGrey40 = Color(0xFF625b71)
27 | val Pink40 = Color(0xFF7D5260)
28 |
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/app/src/main/java/com/flaringapp/compose/topbar/ui/samples/CollapsingTopBarSample.kt:
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1 | /*
2 | * Copyright 2024 Flaringapp
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.flaringapp.compose.topbar.ui.samples
18 |
19 | import androidx.compose.runtime.Composable
20 | import androidx.compose.runtime.Immutable
21 |
22 | @Immutable
23 | interface CollapsingTopBarSample {
24 |
25 | val name: String
26 |
27 | @Composable
28 | fun Content(
29 | onBack: () -> Unit,
30 | )
31 | }
32 |
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/app/src/main/java/com/flaringapp/compose/topbar/ui/samples/gallery/SamplesGalleryGroup.kt:
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1 | /*
2 | * Copyright 2024 Flaringapp
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.flaringapp.compose.topbar.ui.samples.gallery
18 |
19 | import androidx.compose.runtime.snapshots.SnapshotStateList
20 | import com.flaringapp.compose.topbar.ui.samples.CollapsingTopBarSample
21 |
22 | data class SamplesGalleryGroup(
23 | val name: String,
24 | val samples: SnapshotStateList,
25 | )
26 |
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/.github/workflows/publish-release.yml:
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1 | name: Publish Maven Central release
2 |
3 | on:
4 | push:
5 | tags:
6 | - '**'
7 |
8 | jobs:
9 | publish:
10 | name: Publish release
11 | runs-on: ubuntu-latest
12 |
13 | steps:
14 | - name: Checkout
15 | uses: actions/checkout@v4
16 |
17 | - name: Set up JDK 17
18 | uses: actions/setup-java@v4
19 | with:
20 | distribution: 'temurin'
21 | java-version: 17
22 |
23 | - name: Grant execute permission for gradlew
24 | run: chmod +x ./gradlew
25 |
26 | - name: Publish to Maven Central
27 | run: ./gradlew publishAndReleaseToMavenCentral
28 | env:
29 | ORG_GRADLE_PROJECT_mavenCentralUsername: ${{ secrets.MAVEN_CENTRAL_USERNAME }}
30 | ORG_GRADLE_PROJECT_mavenCentralPassword: ${{ secrets.MAVEN_CENTRAL_PASSWORD }}
31 | ORG_GRADLE_PROJECT_signingInMemoryKey: ${{ secrets.SIGNING_PRIVATE_KEY }}
32 | ORG_GRADLE_PROJECT_signingInMemoryKeyId: ${{ secrets.SIGNING_KEY_ID }}
33 | ORG_GRADLE_PROJECT_signingInMemoryKeyPassword: ${{ secrets.SIGNING_PASSWORD }}
34 |
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/app/src/main/java/com/flaringapp/compose/topbar/ui/samples/CollapsingTopBarSampleDogDefaults.kt:
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1 | /*
2 | * Copyright 2024 Flaringapp
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.flaringapp.compose.topbar.ui.samples
18 |
19 | import com.flaringapp.compose.topbar.ui.samples.common.SampleTopBarImageDog
20 |
21 | object CollapsingTopBarSampleDogDefaults {
22 |
23 | val Basic: SampleTopBarImageDog
24 | get() = SampleTopBarImageDog.GoldenMartian
25 |
26 | val Advanced: SampleTopBarImageDog
27 | get() = SampleTopBarImageDog.LabradorInCar
28 |
29 | val Column: SampleTopBarImageDog
30 | get() = SampleTopBarImageDog.Dachshund
31 | }
32 |
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/ComposeCollapsingTopBar/src/main/java/com/flaringapp/compose/topbar/CollapsingTopBarProgressListener.kt:
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1 | /*
2 | * Copyright 2024 Flaringapp
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.flaringapp.compose.topbar
18 |
19 | /**
20 | * Receives collapsing progress updates in [onProgressUpdate].
21 | */
22 | fun interface CollapsingTopBarProgressListener {
23 |
24 | /**
25 | * Callback to collapsing progress update.
26 | *
27 | * @param totalProgress progress of total top bar collapsing.
28 | * @param itemProgress progress of target item collapsing.
29 | */
30 | fun onProgressUpdate(
31 | totalProgress: Float,
32 | itemProgress: Float,
33 | )
34 | }
35 |
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/app/src/main/java/com/flaringapp/compose/topbar/Common.kt:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright 2024 Flaringapp
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | // https://github.com/slackhq/compose-lints/issues/326
18 | @file:SuppressLint("ComposeUnstableReceiver")
19 |
20 | package com.flaringapp.compose.topbar
21 |
22 | import android.annotation.SuppressLint
23 | import androidx.compose.foundation.layout.WindowInsets
24 | import androidx.compose.foundation.layout.displayCutout
25 | import androidx.compose.foundation.layout.systemBars
26 | import androidx.compose.foundation.layout.union
27 | import androidx.compose.runtime.Composable
28 | import androidx.compose.runtime.NonRestartableComposable
29 |
30 | val WindowInsets.Companion.screen: WindowInsets
31 | @Composable
32 | @NonRestartableComposable
33 | get() = WindowInsets.systemBars.union(WindowInsets.displayCutout)
34 |
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/ComposeCollapsingTopBar/src/androidTest/java/com/flaringapp/compose/topbar/ExampleInstrumentedTest.kt:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright 2024 Flaringapp
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.flaringapp.compose.topbar
18 |
19 | import androidx.test.ext.junit.runners.AndroidJUnit4
20 | import androidx.test.platform.app.InstrumentationRegistry
21 | import org.junit.Assert.assertEquals
22 | import org.junit.Test
23 | import org.junit.runner.RunWith
24 |
25 | /**
26 | * Instrumented test, which will execute on an Android device.
27 | *
28 | * See [testing documentation](http://d.android.com/tools/testing).
29 | */
30 | @RunWith(AndroidJUnit4::class)
31 | class ExampleInstrumentedTest {
32 | @Test
33 | fun useAppContext() {
34 | // Context of the app under test.
35 | val appContext = InstrumentationRegistry.getInstrumentation().targetContext
36 | assertEquals("com.flaringapp.compose.topbar.test", appContext.packageName)
37 | }
38 | }
39 |
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/ComposeCollapsingTopBar/src/main/java/com/flaringapp/compose/topbar/nestedscroll/CollapsingTopBarNestedScrollHandler.kt:
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1 | /*
2 | * Copyright 2024 Flaringapp
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.flaringapp.compose.topbar.nestedscroll
18 |
19 | import androidx.compose.foundation.gestures.FlingBehavior
20 | import androidx.compose.foundation.gestures.ScrollableState
21 | import androidx.compose.ui.input.nestedscroll.NestedScrollConnection
22 |
23 | /**
24 | * A contract for single top bar nested scroll handler responsible for processing single logical
25 | * operation (e.g. expanding). A perfect place to define common extensions for all handlers.
26 | */
27 | interface CollapsingTopBarNestedScrollHandler : NestedScrollConnection {
28 |
29 | suspend fun ScrollableState.fling(
30 | flingBehavior: FlingBehavior,
31 | velocity: Float,
32 | ): Float {
33 | var left = velocity
34 | scroll {
35 | with(flingBehavior) {
36 | left = performFling(left)
37 | }
38 | }
39 |
40 | return left
41 | }
42 | }
43 |
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/app/src/main/java/com/flaringapp/compose/topbar/ui/samples/scaffold/ScaffoldControlsTitleText.kt:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright 2024 Flaringapp
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.flaringapp.compose.topbar.ui.samples.scaffold
18 |
19 | import androidx.compose.material3.MaterialTheme
20 | import androidx.compose.material3.Text
21 | import androidx.compose.runtime.Composable
22 | import androidx.compose.ui.Modifier
23 | import androidx.compose.ui.tooling.preview.Preview
24 | import com.flaringapp.compose.topbar.ui.theme.ComposeCollapsingTopBarTheme
25 |
26 | @Composable
27 | fun ScaffoldControlsTitleText(
28 | text: String,
29 | modifier: Modifier = Modifier,
30 | ) {
31 | Text(
32 | modifier = modifier,
33 | text = text,
34 | color = MaterialTheme.colorScheme.primary,
35 | style = MaterialTheme.typography.titleLarge,
36 | )
37 | }
38 |
39 | @Preview(showBackground = true)
40 | @Composable
41 | private fun Preview() {
42 | ComposeCollapsingTopBarTheme {
43 | ScaffoldControlsTitleText(
44 | text = "Controls Text",
45 | )
46 | }
47 | }
48 |
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/app/src/main/java/com/flaringapp/compose/topbar/ui/samples/common/SampleExpandRequestHandler.kt:
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1 | /*
2 | * Copyright 2024 Flaringapp
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.flaringapp.compose.topbar.ui.samples.common
18 |
19 | import androidx.compose.runtime.Composable
20 | import androidx.compose.runtime.LaunchedEffect
21 | import androidx.compose.runtime.MutableState
22 | import androidx.compose.runtime.mutableStateOf
23 | import androidx.compose.runtime.remember
24 | import com.flaringapp.compose.topbar.CollapsingTopBarControls
25 |
26 | @Composable
27 | fun rememberSampleExpandRequestHandler(
28 | controls: CollapsingTopBarControls,
29 | ): MutableState {
30 | val expandRequestState: MutableState = remember {
31 | mutableStateOf(null)
32 | }
33 |
34 | LaunchedEffect(expandRequestState.value) {
35 | val expand = expandRequestState.value ?: return@LaunchedEffect
36 |
37 | if (expand) {
38 | controls.expand()
39 | } else {
40 | controls.collapse()
41 | }
42 |
43 | expandRequestState.value = null
44 | }
45 |
46 | return expandRequestState
47 | }
48 |
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/ComposeCollapsingTopBar/src/main/java/com/flaringapp/compose/topbar/snap/CollapsingTopBarSnapScope.kt:
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1 | /*
2 | * Copyright 2024 Flaringapp
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.flaringapp.compose.topbar.snap
18 |
19 | import com.flaringapp.compose.topbar.CollapsingTopBarControls
20 |
21 | /**
22 | * The receiver scope of [CollapsingTopBarSnapBehavior]. Creates a scoped snapping environment of
23 | * something that represents top bar state as [CollapsingTopBarControls], which even may be
24 | * dynamic. Responsible for executing snap action requested in [snapWithProgress].
25 | */
26 | fun interface CollapsingTopBarSnapScope {
27 |
28 | /**
29 | * Executes snap action [action] providing current progress with [CollapsingTopBarControls]
30 | * receiver.
31 | *
32 | * @param wasMovingUp the last motion direction that resulted in snap being requested. May
33 | * help complex snap scopes decide where to snap, i.e. what [CollapsingTopBarControls] to use.
34 | * @param action the snap action lambda to be executed.
35 | */
36 | suspend fun snapWithProgress(
37 | wasMovingUp: Boolean,
38 | action: suspend CollapsingTopBarControls.(progress: Float) -> Unit,
39 | )
40 | }
41 |
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/app/src/main/res/drawable-v24/ic_launcher_foreground.xml:
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1 |
7 |
8 |
9 |
15 |