├── .gitignore ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── local.properties ├── settings.gradle └── src └── main ├── AndroidManifest.xml └── kotlin └── com └── github └── takahirom └── compose ├── DefaultChoreographerFrameClock.kt ├── GlobalSnapshotManager.kt ├── Main.kt ├── MainActivity.kt ├── launchComposeInsideLogger.kt └── rootNodeToString.kt /.gitignore: -------------------------------------------------------------------------------- 1 | build/ 2 | .idea/ 3 | .gradle/ 4 | -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | buildscript { 2 | repositories { 3 | // TODO: remove after new build is published 4 | mavenLocal().mavenContent { 5 | includeModule("org.jetbrains.compose", "compose-gradle-plugin") 6 | } 7 | google() 8 | jcenter() 9 | maven { url "https://maven.pkg.jetbrains.space/public/p/compose/dev" } 10 | maven { 11 | url 'https://jitpack.io' 12 | } 13 | } 14 | 15 | dependencies { 16 | // __LATEST_COMPOSE_RELEASE_VERSION__ 17 | classpath("org.jetbrains.compose:compose-gradle-plugin:1.0.0-alpha4-build344") 18 | classpath("com.android.tools.build:gradle:4.0.2") 19 | // __KOTLIN_COMPOSE_VERSION__ 20 | classpath(group: 'org.jetbrains.kotlin', name: 'kotlin-gradle-plugin', version: '1.5.30') 21 | classpath 'com.github.takahirom:decomposer:main-SNAPSHOT' 22 | } 23 | } 24 | plugins { 25 | id 'org.jetbrains.kotlin.multiplatform' version '1.5.30' 26 | } 27 | apply plugin:"com.android.application" 28 | apply plugin:"org.jetbrains.compose" 29 | apply plugin: 'com.github.takahirom.decomposer' 30 | 31 | group 'org.example' 32 | version '1.0-SNAPSHOT' 33 | 34 | repositories { 35 | mavenCentral() 36 | jcenter() 37 | google() 38 | maven { url "https://maven.pkg.jetbrains.space/public/p/compose/dev" } 39 | } 40 | 41 | android { 42 | compileSdkVersion 29 43 | 44 | defaultConfig { 45 | applicationId "com.github.takahirom.compose" 46 | minSdkVersion 21 47 | targetSdkVersion 29 48 | 49 | versionCode 1 50 | versionName "1.0.0" 51 | } 52 | buildTypes { 53 | getByName("release"){ 54 | signingConfig = signingConfigs.getByName("debug") 55 | debuggable = true 56 | } 57 | } 58 | compileOptions { 59 | sourceCompatibility 1.8 60 | targetCompatibility 1.8 61 | } 62 | } 63 | 64 | tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).all { 65 | kotlinOptions { 66 | jvmTarget = "1.8" 67 | } 68 | } 69 | 70 | kotlin { 71 | jvm() 72 | android() 73 | 74 | sourceSets { 75 | commonMain { 76 | dependencies { 77 | implementation kotlin('stdlib-common') 78 | implementation compose.runtime 79 | implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.5.0" 80 | } 81 | } 82 | commonTest { 83 | dependencies { 84 | implementation kotlin('test-common') 85 | implementation kotlin('test-annotations-common') 86 | } 87 | } 88 | jvmMain { 89 | dependencies { 90 | compileOnly "org.jetbrains.compose.compiler:compiler-hosted:1.0.0-alpha4-build344" 91 | } 92 | } 93 | } 94 | } 95 | -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | kotlin.code.style=official 2 | android.useAndroidX=true 3 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/takahirom/simple-compose-for-learning-inside-compose/873568ae64965d50cd68abe238e1c5dcb6b30fcc/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Sat Aug 28 15:26:21 JST 2021 2 | distributionBase=GRADLE_USER_HOME 3 | distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-bin.zip 4 | distributionPath=wrapper/dists 5 | zipStorePath=wrapper/dists 6 | zipStoreBase=GRADLE_USER_HOME 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | # 4 | # Copyright 2015 the original author or authors. 5 | # 6 | # Licensed under the Apache License, Version 2.0 (the "License"); 7 | # you may not use this file except in compliance with the License. 8 | # You may obtain a copy of the License at 9 | # 10 | # https://www.apache.org/licenses/LICENSE-2.0 11 | # 12 | # Unless required by applicable law or agreed to in writing, software 13 | # distributed under the License is distributed on an "AS IS" BASIS, 14 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 | # See the License for the specific language governing permissions and 16 | # limitations under the License. 17 | # 18 | 19 | ############################################################################## 20 | ## 21 | ## Gradle start up script for UN*X 22 | ## 23 | ############################################################################## 24 | 25 | # Attempt to set APP_HOME 26 | # Resolve links: $0 may be a link 27 | PRG="$0" 28 | # Need this for relative symlinks. 29 | while [ -h "$PRG" ] ; do 30 | ls=`ls -ld "$PRG"` 31 | link=`expr "$ls" : '.*-> \(.*\)$'` 32 | if expr "$link" : '/.*' > /dev/null; then 33 | PRG="$link" 34 | else 35 | PRG=`dirname "$PRG"`"/$link" 36 | fi 37 | done 38 | SAVED="`pwd`" 39 | cd "`dirname \"$PRG\"`/" >/dev/null 40 | APP_HOME="`pwd -P`" 41 | cd "$SAVED" >/dev/null 42 | 43 | APP_NAME="Gradle" 44 | APP_BASE_NAME=`basename "$0"` 45 | 46 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 47 | DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' 48 | 49 | # Use the maximum available, or set MAX_FD != -1 to use that value. 50 | MAX_FD="maximum" 51 | 52 | warn () { 53 | echo "$*" 54 | } 55 | 56 | die () { 57 | echo 58 | echo "$*" 59 | echo 60 | exit 1 61 | } 62 | 63 | # OS specific support (must be 'true' or 'false'). 64 | cygwin=false 65 | msys=false 66 | darwin=false 67 | nonstop=false 68 | case "`uname`" in 69 | CYGWIN* ) 70 | cygwin=true 71 | ;; 72 | Darwin* ) 73 | darwin=true 74 | ;; 75 | MINGW* ) 76 | msys=true 77 | ;; 78 | NONSTOP* ) 79 | nonstop=true 80 | ;; 81 | esac 82 | 83 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 84 | 85 | 86 | # Determine the Java command to use to start the JVM. 87 | if [ -n "$JAVA_HOME" ] ; then 88 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 89 | # IBM's JDK on AIX uses strange locations for the executables 90 | JAVACMD="$JAVA_HOME/jre/sh/java" 91 | else 92 | JAVACMD="$JAVA_HOME/bin/java" 93 | fi 94 | if [ ! -x "$JAVACMD" ] ; then 95 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 96 | 97 | Please set the JAVA_HOME variable in your environment to match the 98 | location of your Java installation." 99 | fi 100 | else 101 | JAVACMD="java" 102 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 103 | 104 | Please set the JAVA_HOME variable in your environment to match the 105 | location of your Java installation." 106 | fi 107 | 108 | # Increase the maximum file descriptors if we can. 109 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then 110 | MAX_FD_LIMIT=`ulimit -H -n` 111 | if [ $? -eq 0 ] ; then 112 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 113 | MAX_FD="$MAX_FD_LIMIT" 114 | fi 115 | ulimit -n $MAX_FD 116 | if [ $? -ne 0 ] ; then 117 | warn "Could not set maximum file descriptor limit: $MAX_FD" 118 | fi 119 | else 120 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 121 | fi 122 | fi 123 | 124 | # For Darwin, add options to specify how the application appears in the dock 125 | if $darwin; then 126 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 127 | fi 128 | 129 | # For Cygwin or MSYS, switch paths to Windows format before running java 130 | if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then 131 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 132 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 133 | 134 | JAVACMD=`cygpath --unix "$JAVACMD"` 135 | 136 | # We build the pattern for arguments to be converted via cygpath 137 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 138 | SEP="" 139 | for dir in $ROOTDIRSRAW ; do 140 | ROOTDIRS="$ROOTDIRS$SEP$dir" 141 | SEP="|" 142 | done 143 | OURCYGPATTERN="(^($ROOTDIRS))" 144 | # Add a user-defined pattern to the cygpath arguments 145 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 146 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 147 | fi 148 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 149 | i=0 150 | for arg in "$@" ; do 151 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 152 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 153 | 154 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 155 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 156 | else 157 | eval `echo args$i`="\"$arg\"" 158 | fi 159 | i=`expr $i + 1` 160 | done 161 | case $i in 162 | 0) set -- ;; 163 | 1) set -- "$args0" ;; 164 | 2) set -- "$args0" "$args1" ;; 165 | 3) set -- "$args0" "$args1" "$args2" ;; 166 | 4) set -- "$args0" "$args1" "$args2" "$args3" ;; 167 | 5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 168 | 6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 169 | 7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 170 | 8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 171 | 9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 172 | esac 173 | fi 174 | 175 | # Escape application args 176 | save () { 177 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done 178 | echo " " 179 | } 180 | APP_ARGS=`save "$@"` 181 | 182 | # Collect all arguments for the java command, following the shell quoting and substitution rules 183 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" 184 | 185 | exec "$JAVACMD" "$@" 186 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @rem 2 | @rem Copyright 2015 the original author or authors. 3 | @rem 4 | @rem Licensed under the Apache License, Version 2.0 (the "License"); 5 | @rem you may not use this file except in compliance with the License. 6 | @rem You may obtain a copy of the License at 7 | @rem 8 | @rem https://www.apache.org/licenses/LICENSE-2.0 9 | @rem 10 | @rem Unless required by applicable law or agreed to in writing, software 11 | @rem distributed under the License is distributed on an "AS IS" BASIS, 12 | @rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | @rem See the License for the specific language governing permissions and 14 | @rem limitations under the License. 15 | @rem 16 | 17 | @if "%DEBUG%" == "" @echo off 18 | @rem ########################################################################## 19 | @rem 20 | @rem Gradle startup script for Windows 21 | @rem 22 | @rem ########################################################################## 23 | 24 | @rem Set local scope for the variables with windows NT shell 25 | if "%OS%"=="Windows_NT" setlocal 26 | 27 | set DIRNAME=%~dp0 28 | if "%DIRNAME%" == "" set DIRNAME=. 29 | set APP_BASE_NAME=%~n0 30 | set APP_HOME=%DIRNAME% 31 | 32 | @rem Resolve any "." and ".." in APP_HOME to make it shorter. 33 | for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi 34 | 35 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 36 | set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" 37 | 38 | @rem Find java.exe 39 | if defined JAVA_HOME goto findJavaFromJavaHome 40 | 41 | set JAVA_EXE=java.exe 42 | %JAVA_EXE% -version >NUL 2>&1 43 | if "%ERRORLEVEL%" == "0" goto execute 44 | 45 | echo. 46 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 47 | echo. 48 | echo Please set the JAVA_HOME variable in your environment to match the 49 | echo location of your Java installation. 50 | 51 | goto fail 52 | 53 | :findJavaFromJavaHome 54 | set JAVA_HOME=%JAVA_HOME:"=% 55 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 56 | 57 | if exist "%JAVA_EXE%" goto execute 58 | 59 | echo. 60 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 61 | echo. 62 | echo Please set the JAVA_HOME variable in your environment to match the 63 | echo location of your Java installation. 64 | 65 | goto fail 66 | 67 | :execute 68 | @rem Setup the command line 69 | 70 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 71 | 72 | 73 | @rem Execute Gradle 74 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %* 75 | 76 | :end 77 | @rem End local scope for the variables with windows NT shell 78 | if "%ERRORLEVEL%"=="0" goto mainEnd 79 | 80 | :fail 81 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 82 | rem the _cmd.exe /c_ return code! 83 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 84 | exit /b 1 85 | 86 | :mainEnd 87 | if "%OS%"=="Windows_NT" endlocal 88 | 89 | :omega 90 | -------------------------------------------------------------------------------- /local.properties: -------------------------------------------------------------------------------- 1 | ## This file must *NOT* be checked into Version Control Systems, 2 | # as it contains information specific to your local configuration. 3 | # 4 | # Location of the SDK. This is only used by Gradle. 5 | # For customization when using a Version Control System, please read the 6 | # header note. 7 | #Sun Sep 12 16:53:05 JST 2021 8 | sdk.dir=/Users/takahirom/Library/Android/sdk 9 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | rootProject.name = 'compose' 2 | 3 | -------------------------------------------------------------------------------- /src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 6 | 7 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | -------------------------------------------------------------------------------- /src/main/kotlin/com/github/takahirom/compose/DefaultChoreographerFrameClock.kt: -------------------------------------------------------------------------------- 1 | package com.github.takahirom.compose 2 | 3 | import android.view.Choreographer 4 | import androidx.compose.runtime.MonotonicFrameClock 5 | import kotlinx.coroutines.Dispatchers 6 | import kotlinx.coroutines.runBlocking 7 | import kotlinx.coroutines.suspendCancellableCoroutine 8 | 9 | object DefaultChoreographerFrameClock : MonotonicFrameClock { 10 | private val choreographer = runBlocking(Dispatchers.Main.immediate) { 11 | Choreographer.getInstance() 12 | } 13 | 14 | override suspend fun withFrameNanos( 15 | onFrame: (frameTimeNanos: Long) -> R 16 | ): R = suspendCancellableCoroutine { co -> 17 | val callback = Choreographer.FrameCallback { frameTimeNanos -> 18 | co.resumeWith(runCatching { onFrame(frameTimeNanos) }) 19 | } 20 | choreographer.postFrameCallback(callback) 21 | co.invokeOnCancellation { choreographer.removeFrameCallback(callback) } 22 | } 23 | } 24 | -------------------------------------------------------------------------------- /src/main/kotlin/com/github/takahirom/compose/GlobalSnapshotManager.kt: -------------------------------------------------------------------------------- 1 | package com.github.takahirom.compose 2 | 3 | import androidx.compose.runtime.ExperimentalComposeApi 4 | import androidx.compose.runtime.snapshots.ObserverHandle 5 | import androidx.compose.runtime.snapshots.Snapshot 6 | import kotlinx.coroutines.CoroutineScope 7 | import kotlinx.coroutines.Dispatchers 8 | import kotlinx.coroutines.SupervisorJob 9 | import kotlinx.coroutines.launch 10 | 11 | // from: https://github.com/ShikaSD/compose-browser-demo/blob/18b25325b8f5366b9b547cd05c49d2e130e52dea/prelude/src/main/kotlin/compose/web/internal/GlobalSnapshotManager.kt 12 | internal object GlobalSnapshotManager { 13 | private var started = false 14 | private var commitPending = false 15 | private var removeWriteObserver: (ObserverHandle)? = null 16 | 17 | private val scheduleScope = CoroutineScope(Dispatchers.Main + SupervisorJob()) 18 | 19 | @OptIn(ExperimentalComposeApi::class) 20 | fun ensureStarted() { 21 | if (!started) { 22 | started = true 23 | removeWriteObserver = Snapshot.registerGlobalWriteObserver(globalWriteObserver) 24 | } 25 | } 26 | 27 | @OptIn(ExperimentalComposeApi::class) 28 | private val globalWriteObserver: (Any) -> Unit = { 29 | // Race, but we don't care too much if we end up with multiple calls scheduled. 30 | if (!commitPending) { 31 | commitPending = true 32 | schedule { 33 | commitPending = false 34 | Snapshot.sendApplyNotifications() 35 | } 36 | } 37 | } 38 | 39 | /** 40 | * List of deferred callbacks to run serially. Guarded by its own monitor lock. 41 | */ 42 | private val scheduledCallbacks = mutableListOf<() -> Unit>() 43 | 44 | /** 45 | * Guarded by [scheduledCallbacks]'s monitor lock. 46 | */ 47 | private var isSynchronizeScheduled = false 48 | 49 | /** 50 | * Synchronously executes any outstanding callbacks and brings snapshots into a 51 | * consistent, updated state. 52 | */ 53 | private fun synchronize() { 54 | scheduledCallbacks.forEach { it.invoke() } 55 | scheduledCallbacks.clear() 56 | isSynchronizeScheduled = false 57 | } 58 | 59 | private fun schedule(block: () -> Unit) { 60 | scheduledCallbacks.add(block) 61 | if (!isSynchronizeScheduled) { 62 | isSynchronizeScheduled = true 63 | scheduleScope.launch { synchronize() } 64 | } 65 | } 66 | } 67 | -------------------------------------------------------------------------------- /src/main/kotlin/com/github/takahirom/compose/Main.kt: -------------------------------------------------------------------------------- 1 | @file:Suppress("FunctionName") 2 | 3 | package com.github.takahirom.compose 4 | 5 | import androidx.compose.runtime.AbstractApplier 6 | import androidx.compose.runtime.Composable 7 | import androidx.compose.runtime.Composition 8 | import androidx.compose.runtime.LaunchedEffect 9 | import androidx.compose.runtime.Recomposer 10 | import androidx.compose.runtime.ReusableComposeNode 11 | import androidx.compose.runtime.getValue 12 | import androidx.compose.runtime.mutableStateOf 13 | import androidx.compose.runtime.remember 14 | import androidx.compose.runtime.setValue 15 | import kotlinx.coroutines.CoroutineScope 16 | import kotlinx.coroutines.Dispatchers 17 | import kotlinx.coroutines.InternalCoroutinesApi 18 | import kotlinx.coroutines.MainScope 19 | import kotlinx.coroutines.delay 20 | import kotlinx.coroutines.launch 21 | import kotlinx.coroutines.yield 22 | 23 | 24 | sealed class Node { 25 | val children = mutableListOf() 26 | 27 | class RootNode : Node() { 28 | override fun toString(): String { 29 | return rootNodeToString() 30 | } 31 | } 32 | 33 | data class Node1( 34 | var name: String = "", 35 | ) : Node() 36 | 37 | data class Node2( 38 | var name: String = "", 39 | ) : Node() 40 | } 41 | 42 | 43 | @OptIn(InternalCoroutinesApi::class) 44 | fun runApp() { 45 | val composer = Recomposer(Dispatchers.Main) 46 | 47 | GlobalSnapshotManager.ensureStarted() 48 | val mainScope = MainScope() 49 | mainScope.launch(DefaultChoreographerFrameClock) { 50 | composer.runRecomposeAndApplyChanges() 51 | } 52 | 53 | val rootNode = Node.RootNode() 54 | Composition(NodeApplier(rootNode), composer).apply { 55 | setContent { 56 | Content() 57 | } 58 | launchNodeLogger(mainScope, rootNode) 59 | launchComposeInsideLogger(composer, mainScope) 60 | } 61 | 62 | } 63 | 64 | private fun launchNodeLogger( 65 | mainScope: CoroutineScope, 66 | node: Node.RootNode 67 | ) { 68 | mainScope.launch { 69 | var nodeString = "" 70 | while (true) { 71 | val newNodeString = node.toString() 72 | if (nodeString != newNodeString) { 73 | nodeString = newNodeString 74 | println(nodeString) 75 | } 76 | yield() 77 | } 78 | } 79 | } 80 | 81 | @Composable 82 | fun Content() { 83 | var state by remember { mutableStateOf(true) } 84 | LaunchedEffect(Unit) { 85 | delay(10000) 86 | state = false 87 | } 88 | if (state) { 89 | Node1() 90 | } 91 | Node2() 92 | } 93 | 94 | @Composable 95 | private fun Node1(name: String = "node1") { 96 | ReusableComposeNode( 97 | factory = { 98 | Node.Node1() 99 | }, 100 | update = { 101 | set(name) { this.name = it } 102 | }, 103 | ) 104 | } 105 | 106 | @Composable 107 | private fun Node2(name: String = "node2") { 108 | ReusableComposeNode( 109 | factory = { 110 | Node.Node2() 111 | }, 112 | update = { 113 | set(name) { this.name = it } 114 | }, 115 | ) 116 | } 117 | 118 | 119 | class NodeApplier(node: Node) : AbstractApplier(node) { 120 | override fun onClear() { 121 | println("onClear") 122 | current.children.clear() 123 | } 124 | 125 | override fun insertBottomUp(index: Int, instance: Node) { 126 | // use top down 127 | } 128 | 129 | override fun insertTopDown(index: Int, instance: Node) { 130 | println("insert$index") 131 | current.children.add(index, instance) 132 | } 133 | 134 | override fun move(from: Int, to: Int, count: Int) { 135 | current.children.move(from, to, count) 136 | } 137 | 138 | override fun remove(index: Int, count: Int) { 139 | println("remove$index") 140 | current.children.remove(index, count) 141 | } 142 | } -------------------------------------------------------------------------------- /src/main/kotlin/com/github/takahirom/compose/MainActivity.kt: -------------------------------------------------------------------------------- 1 | package com.github.takahirom.compose 2 | 3 | import android.app.Activity 4 | import android.os.Bundle 5 | 6 | class MainActivity : Activity() { 7 | 8 | override fun onCreate(savedInstanceState: Bundle?) { 9 | super.onCreate(savedInstanceState) 10 | runApp() 11 | } 12 | } 13 | -------------------------------------------------------------------------------- /src/main/kotlin/com/github/takahirom/compose/launchComposeInsideLogger.kt: -------------------------------------------------------------------------------- 1 | package com.github.takahirom.compose 2 | 3 | import androidx.compose.runtime.Composition 4 | import androidx.compose.runtime.Recomposer 5 | import kotlinx.coroutines.CoroutineScope 6 | import kotlinx.coroutines.GlobalScope 7 | import kotlinx.coroutines.flow.collect 8 | import kotlinx.coroutines.launch 9 | import kotlinx.coroutines.yield 10 | 11 | fun Composition.launchComposeInsideLogger(composer: Recomposer, mainScope: CoroutineScope) { 12 | mainScope.launch { 13 | composer.state.collect { 14 | println("composer:$it") 15 | } 16 | } 17 | val slotTable = Class.forName("androidx.compose.runtime.CompositionImpl") 18 | .getDeclaredField("slotTable") 19 | .apply { 20 | isAccessible = true 21 | } 22 | .get(this) 23 | GlobalScope.launch { 24 | var lastSlotTableString = "" 25 | while (true) { 26 | val slotTableString = Class.forName("androidx.compose.runtime.SlotTable") 27 | .getMethod("asString") 28 | .apply { 29 | isAccessible = true 30 | } 31 | .invoke(slotTable) as String 32 | 33 | if (slotTableString != lastSlotTableString) { 34 | lastSlotTableString = slotTableString 35 | val groups = Class.forName("androidx.compose.runtime.SlotTable") 36 | .getDeclaredField("groups") 37 | .apply { 38 | isAccessible = true 39 | } 40 | .get(slotTable) as IntArray 41 | val slots = Class.forName("androidx.compose.runtime.SlotTable") 42 | .getDeclaredField("slots") 43 | .apply { 44 | isAccessible = true 45 | } 46 | .get(slotTable) as Array 47 | 48 | 49 | println("------") 50 | println("slotTable:") 51 | println(slotTableString) 52 | println("groups:") 53 | groups.toList().windowed( 54 | size = 5, 55 | step = 5, 56 | partialWindows = false 57 | ) 58 | .forEachIndexed { index, group -> 59 | val (key, groupInfo, parentAnchor, size, dataAnchor) = group 60 | println( 61 | "index: $index, " + 62 | "key: $key, " + 63 | "groupInfo: $groupInfo, " + 64 | "parentAnchor: $parentAnchor, " + 65 | "size: $size, " + 66 | "dataAnchor: $dataAnchor" 67 | ) 68 | } 69 | println("slots:") 70 | println(slots.mapIndexed { index, slot -> index to slot }.joinToString("\n") { (index, slot) -> 71 | "$index: $slot(${slot?.javaClass})" 72 | }) 73 | } 74 | yield() 75 | } 76 | } 77 | } -------------------------------------------------------------------------------- /src/main/kotlin/com/github/takahirom/compose/rootNodeToString.kt: -------------------------------------------------------------------------------- 1 | package com.github.takahirom.compose 2 | 3 | fun Node.RootNode.rootNodeToString(): String { 4 | return buildString { 5 | appendLine("RootNode") 6 | children.forEachIndexed { index, node -> 7 | if (index == children.lastIndex) { 8 | appendLine("└── $node") 9 | } else { 10 | appendLine("├── $node") 11 | } 12 | } 13 | } 14 | } 15 | 16 | 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