cd frameworks\runtime-src\proj.android-studio
gradlew
gradlew命令其實(shí)運(yùn)行的是proj.android-studio目錄下的gradlew.bat腳本
1.安裝Java和下載gradlew
第一次會(huì)提示沒(méi)有java
ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation.
在Java下載頁(yè)面霜瘪，我選擇的是jdk8，安裝完畢财异，檢查下Java是否正確安裝
重新執(zhí)行g(shù)radlew栅屏，會(huì)下載需要的gradle
2.配置SDK
運(yùn)行失敗朵你，提示
> SDK location not found. Define location with sdk.dir in the local.properties file or with an ANDROID_HOME environment variable.
我使用的是android-sdk_r24.4.1-windows
定義local.properties文件，或者定義ANDROID_HOME環(huán)境變量
我選擇增加local.properties文件，需要注意路徑的書(shū)寫(xiě)方式
sdk.dir=D://dev/android-sdk-windows
3.下載項(xiàng)目使用的SDK platform 和 build-tools版本
再次執(zhí)行g(shù)radlew
> You have not accepted the license agreements of the following SDK components:
[Android SDK Build-Tools 26.0.2, Android SDK Platform 29].
Before building your project, you need to accept the license agreements and complete the installation of the missing components using the Android Studio SDK Manager.
Alternatively, to learn how to transfer the license agreements from one workstation to another, go to http://d.android.com/r/studio-ui/export-licenses.html
提示指定版本的sdk的license有問(wèn)題橙数，我選擇了重新安裝來(lái)繞過(guò)了這個(gè)問(wèn)題
運(yùn)行SDK Manager.exe蕉饼，重新安裝下build-tools和sdk platform
提示信息和項(xiàng)目配置對(duì)應(yīng)的
4. 配置NDK
再次執(zhí)行g(shù)radlew虐杯，提示ndk沒(méi)有配置
> NDK not configured.
Download it with SDK manager
查閱資料得知cocos2dx v3.16官方建議使用NDK r14
在local.properties中配置
ndk.dir=D://dev//android-ndk-r14b
再次執(zhí)行，如果發(fā)現(xiàn)報(bào)錯(cuò)NDK中缺少ABI昧港，多半是NDK版本混用導(dǎo)致的
> No toolchains found in the NDK toolchains folder for ABI with prefix: aarch64-linux-android
5.配置libcocos2dx需要的SDK
再次執(zhí)行擎椰，發(fā)現(xiàn)項(xiàng)目可以正常通過(guò)，但是libcocos2dx缺少對(duì)應(yīng)的sdk创肥，同步驟3达舒，安裝即可
A problem occurred configuring project ':libcocos2dx'.
> You have not accepted the license agreements of the following SDK components:
[Android SDK Platform 14].
再次執(zhí)行g(shù)radlew
如果你看到如下圖所示的build successful值朋，只是說(shuō)明通過(guò)了配置的環(huán)境檢查
gradlew的使用
根據(jù)上一步的提示：
gradlew --help可以查看詳細(xì)的命令參數(shù)
USAGE: gradlew [option...] [task...]
-?, -h, --help Shows this help message.
-a, --no-rebuild Do not rebuild project dependencies.
-b, --build-file Specify the build file.
--build-cache Enables the Gradle build cache. Gradle will try to reuse outputs from previous builds. [incubating]
-c, --settings-file Specify the settings file.
--configure-on-demand Configure necessary projects only. Gradle will attempt to reduce configuration time for large multi-project builds. [incubating]
--console Specifies which type of console output to generate. Values are 'plain', 'auto' (default) or 'rich'.
--continue Continue task execution after a task failure.
-D, --system-prop Set system property of the JVM (e.g. -Dmyprop=myvalue).
-d, --debug Log in debug mode (includes normal stacktrace).
--daemon Uses the Gradle Daemon to run the build. Starts the Daemon if not running.
--foreground Starts the Gradle Daemon in the foreground. [incubating]
-g, --gradle-user-home Specifies the gradle user home directory.
-I, --init-script Specify an initialization script.
-i, --info Set log level to info.
--include-build Include the specified build in the composite. [incubating]
-m, --dry-run Run the builds with all task actions disabled.
--max-workers Configure the number of concurrent workers Gradle is allowed to use. [incubating]
--no-build-cache Disables the Gradle build cache. [incubating]
--no-daemon Do not use the Gradle Daemon to run the build.
--no-scan Disables the creation of a build scan. (https://gradle.com/build-scans) [incubating]
--offline Execute the build without accessing network resources.
-P, --project-prop Set project property for the build script (e.g. -Pmyprop=myvalue).
-p, --project-dir Specifies the start directory for Gradle. Defaults to current directory.
--parallel Build projects in parallel. Gradle will attempt to determine the optimal number of executor threads to use. [incubating]
--profile Profile build execution time and generates a report in the <build_dir>/reports/profile directory.
--project-cache-dir Specify the project-specific cache directory. Defaults to .gradle in the root project directory.-q, --quiet Log errors only.
--recompile-scripts Force build script recompiling.
--refresh-dependencies Refresh the state of dependencies.
--rerun-tasks Ignore previously cached task results.
-S, --full-stacktrace Print out the full (very verbose) stacktrace for all exceptions.
-s, --stacktrace Print out the stacktrace for all exceptions.
--scan Creates a build scan. Gradle will emit a warning if the build scan plugin has not been applied. (https://gradle.com/build-scans) [incubating]
--status Shows status of running and recently stopped Gradle Daemon(s).
--stop Stops the Gradle Daemon if it is running.
-t, --continuous Enables continuous build. Gradle does not exit and will re-execute tasks when task file inputs change. [incubating]
-u, --no-search-upward Don't search in parent folders for a settings.gradle file.
-v, --version Print version info.
-w, --warn Set log level to warn.
-x, --exclude-task Specify a task to be excluded from execution.
打包
在gradlew tasks命令中，我們會(huì)發(fā)現(xiàn)很多task
------------------------------------------------------------
All tasks runnable from root project
------------------------------------------------------------
Android tasks
-------------
androidDependencies - Displays the Android dependencies of the project.
signingReport - Displays the signing info for each variant.
sourceSets - Prints out all the source sets defined in this project.
Build tasks
-----------
assemble - Assembles all variants of all applications and secondary packages.
assembleAndroidTest - Assembles all the Test applications.
assembleDebug - Assembles all Debug builds.
assembleRelease - Assembles all Release builds.
build - Assembles and tests this project.
buildDependents - Assembles and tests this project and all projects that depend on it.
buildNeeded - Assembles and tests this project and all projects it depends on.
clean - Deletes the build directory.
cleanBuildCache - Deletes the build cache directory.
compileDebugAndroidTestSources
compileDebugSources
compileDebugUnitTestSources
compileReleaseSources
compileReleaseUnitTestSources
extractDebugAnnotations - Extracts Android annotations for the debug variant into the archive file
extractReleaseAnnotations - Extracts Android annotations for the release variant into the archive file
mockableAndroidJar - Creates a version of android.jar that's suitable for unit tests.
Build Setup tasks
-----------------
init - Initializes a new Gradle build.
wrapper - Generates Gradle wrapper files.
Help tasks
----------
buildEnvironment - Displays all buildscript dependencies declared in root project 'proj.android-studio'.
components - Displays the components produced by root project 'proj.android-studio'. [incubating]
dependencies - Displays all dependencies declared in root project 'proj.android-studio'.
dependencyInsight - Displays the insight into a specific dependency in root project 'proj.android-studio'.
dependentComponents - Displays the dependent components of components in root project 'proj.android-studio'. [incubating]
help - Displays a help message.
model - Displays the configuration model of root project 'proj.android-studio'. [incubating]
projects - Displays the sub-projects of root project 'proj.android-studio'.
properties - Displays the properties of root project 'proj.android-studio'.
tasks - Displays the tasks runnable from root project 'proj.android-studio' (some of the displayed tasks may belong to subprojects).
Install tasks
-------------
installDebug - Installs the Debug build.
installDebugAndroidTest - Installs the android (on device) tests for the Debug build.
installRelease - Installs the Release build.
uninstallAll - Uninstall all applications.
uninstallDebug - Uninstalls the Debug build.
uninstallDebugAndroidTest - Uninstalls the android (on device) tests for the Debug build.
uninstallRelease - Uninstalls the Release build.
Verification tasks
------------------
check - Runs all checks.
connectedAndroidTest - Installs and runs instrumentation tests for all flavors on connected devices.
connectedCheck - Runs all device checks on currently connected devices.
connectedDebugAndroidTest - Installs and runs the tests for debug on connected devices.
deviceAndroidTest - Installs and runs instrumentation tests using all Device Providers.
deviceCheck - Runs all device checks using Device Providers and Test Servers.
lint - Runs lint on all variants.
lintDebug - Runs lint on the Debug build.
lintRelease - Runs lint on the Release build.
lintVitalRelease - Runs lint on just the fatal issues in the release build.
test - Run unit tests for all variants.
testDebugUnitTest - Run unit tests for the debug build.
testReleaseUnitTest - Run unit tests for the release build.
其中Build Tasks中的build是我們需要的打包命令
gradlew build --build-cache
加快打包速度:
--build-cache Enables the Gradle build cache. Gradle will try to reuse outputs from previous builds. [incubating]
NDK版本的問(wèn)題: process_begin: CreateProcess failed. make (e=2)
process_begin: CreateProcess(NULL,
D:/dev/android-ndk-r14b/build//../toolchains/arm-linux-androideabi-4.9/prebuilt/windows-x86_64/bin/arm-linux-androideabi-g++
-MMD -MP -MF
.... 我這里做了省略巩搏，這里的報(bào)錯(cuò)超級(jí)超級(jí)長(zhǎng)
...) failed.
make (e=2): ?????????????????
CreateProcess給出的報(bào)錯(cuò)信息中昨登，使用到了ndk的一個(gè)目錄下的文件
ndk/toolchains/arm-linux-androideabi-4.9/prebuilt/windows-x86_64/bin/arm-linux-androideabi-g++
實(shí)際上，我發(fā)現(xiàn)是沒(méi)有這個(gè)文件的
然后我下載了
r16b解壓后發(fā)現(xiàn)是有的：
Werror=format-security
切換到r16b后再次進(jìn)行編譯
/frameworks/cocos2d-x/cocos/3d/../platform/CCPlatformMacros.h:221:67:
error: format not a string literal and no format arguments [-Werror=format-security]
#define CCLOGERROR(format,...) cocos2d::log(format, ##__VA_ARGS__)
- 解決辦法1：在app/jni/Android.mk中加入贯底，不對(duì)prinft的參數(shù)進(jìn)行常量字符串檢查
LOCAL_DISABLE_FORMAT_STRING_CHECKS :=true
- 解決辦法2(未驗(yàn)證)：app/jni/Application.mk加入
APP_CFLAGS += -Wno-error=format-security
意思是無(wú)視這個(gè)error
- 解決辦法3(未驗(yàn)證)
在CMake腳本文件CMakeLists.txt里面添加一行add_definitions (-Wno-format-security)即可丰辣。
這種情況實(shí)際是編譯器把warining作為error處理了，遇到其他類(lèi)似情況同樣處理禽捆，報(bào)[-Werror,-WXXX]則add_definitions (-Wno-XXX)笙什。
不知原因的問(wèn)題
error: undefined reference to 'vtable
the vtable symbol may be undefined because the class is missing its key function
把構(gòu)造，析構(gòu)的實(shí)現(xiàn)放在cpp里面就解決了
android studio 下載
build.gradle 4.x 需要下載Android Studio3.0
java heap space
gradle.properties修改jvm options即可胚想，堆空間設(shè)置的大一點(diǎn)
# Specifies the JVM arguments used for the daemon process.
# The setting is particularly useful for tweaking memory settings.
# Default value: -Xmx10248m -XX:MaxPermSize=256m
# org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
org.gradle.jvmargs=-Xmx4096m
真機(jī)安裝
gradlew installDebug
手機(jī)系統(tǒng)中有應(yīng)用阻止了安裝
小米手機(jī)：在手機(jī)的開(kāi)發(fā)者模式中關(guān)閉MIUI優(yōu)化
lint導(dǎo)致打包停止
* What went wrong:
Execution failed for task ':xxxx:lint'.
> Lint found errors in the project; aborting build.
Fix the issues identified by lint, or add the following to your build script to proceed with errors:
...
android {
lintOptions {
abortOnError false
}
}
...
按照f(shuō)ix提示琐凭，修改build.gradle即可
小結(jié)
類(lèi)似問(wèn)題最好遇到一次記錄一次，防止反復(fù)查閱浊服，很費(fèi)時(shí)間的
