Android: Update the gradle file to use android studio 2.2 cmake.

Author: degasus

AndroidSetup.md

@@ -4,17 +4,10 @@ If you'd like to contribute to the Android project, but do not currently have a
 
 ## Prerequisites
 
-* A Linux VM or host, or a Mac.
-* JDK 7 for your platform.
-* CMake
-* [Android NDK](https://developer.android.com/tools/sdk/ndk/index.html) 
-* [Android Studio](http://developer.android.com/tools/studio/index.html) **OR**
-* [Android SDK Tools](http://developer.android.com/sdk/index.html#Other) (for command-line usage)
+* [Android Studio](http://developer.android.com/tools/studio/index.html)
 
 If you downloaded Android Studio, extract it and then see [Setting up Android Studio](#setting-up-android-studio).
 
-If you instead chose to download the commoand-line SDK tools, see [Setting up the SDK Tools](#setting-up-the-sdk-tools).
-
 ## Setting up Android Studio
 
 1. Launch Android Studio, which will start a first-launch wizard.
@@ -26,12 +19,6 @@ If you instead chose to download the commoand-line SDK tools, see [Setting up th
 7. Use the SDK Manager to get necessary dependencies, as described in [Getting Dependencies](#getting-dependencies).
 8. When done, follow the steps in [Readme.md](Readme.md#installation-on-android) to compile and deploy the application.
 
-## Setting up the SDK Tools
-
-1. In `Source/Android`, create a file called `local.properties`.
-2. Add a single line: `sdk.dir=<sdk-path>`, where `<sdk-path>` is the path where you extracted the SDK Tools package.
-3. Follow the steps in [Readme.md](Readme.md#installation-on-android) to compile and deploy the application.
-
 ## Executing Gradle Tasks
 
 In Android Studio, you can find a list of possible Gradle tasks in a tray at the top right of the screen:
@@ -50,19 +37,14 @@ For command-line users, any task may be executed with `Source/Android/gradlew <t
 
 Most dependencies for the Android project are supplied by Gradle automatically. However, Android platform libraries (and a few Google-supplied supplementary libraries) must be downloaded through the Android package manager.
 
-1. Launch the Android SDK Manager from the commandline by executing `<sdk-path>/tools/android`, or by clicking on its icon in Android Studio's main toolbar:
+1. Launch the Android SDK Manager by clicking on its icon in Android Studio's main toolbar:
 ![Android Studio Package Icon][package-icon]
-2. At the bottom of the window, click "Deselect All", and then "Updates".
-3. Install or update the following packages:
-
-* SDK Platform, under "Android 5.0.1 (API 21)". This will allow compiling apps that target Lollipop.
-* Android Support Repository
-* Android Support Library
-* Google Repository
+2. Install or update the SDK Platform. Choose the API level selected as [compileSdkVersion](Source/Android/app/build.gradle#L5).
+3. Install or update the SDK Tools. CMake, LLDB and NDK. If you don't use android-studio, please check out https://github.com/Commit451/android-cmake-installer.
 
 In the future, if the project targets a newer version of Android, or use newer versions of the tools/build-tools packages, it will be necessary to use this tool to download updates.
 
 [components]: http://i.imgur.com/Oo1Fs93.png
 [package-icon]: http://i.imgur.com/NUpkAH8.png
 [gradle]: http://i.imgur.com/dXIH6o3.png
-[shortcut]: http://i.imgur.com/eCWP4Yy.png
+[shortcut]: http://i.imgur.com/eCWP4Yy.png

CMakeLists.txt

@@ -188,36 +188,28 @@ else()
 	add_definitions(-D_ARCH_32=1)
 endif()
 
-if(NOT ENABLE_GENERIC)
-	if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "^x86" OR
-	   ${CMAKE_SYSTEM_PROCESSOR} MATCHES "i.86" OR
-	   ${CMAKE_SYSTEM_PROCESSOR} MATCHES "amd64" OR
-	   APPLE)
-		if(_ARCH_64)
-			set(_M_X86 1)
-			set(_M_X86_64 1)
-			add_definitions(-D_M_X86=1 -D_M_X86_64=1 -msse2)
-			set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fno-pie")
-		else()
-			message(FATAL_ERROR "x86_32 is an unsupported platform. Enable generic build if you really want a JIT-less binary.")
-		endif()
-	elseif(${CMAKE_SYSTEM_PROCESSOR} MATCHES "^arm")
-		message(FATAL_ERROR "ARMv7 is an unsupported platform. Enable generic build if you really want a JIT-less binary.")
-	elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "aarch64")
-		# This option only applies to 64bit ARM
-		set(_M_ARM 1)
-		set(_M_ARM_64 1)
-		add_definitions(-D_M_ARM=1 -D_M_ARM_64=1)
-		add_definitions(-march=armv8-a+crc)
-	else()
-		set(ENABLE_GENERIC 1)
-	endif()
-endif()
 
 if(ENABLE_GENERIC)
 	message("Warning! Building generic build!")
 	set(_M_GENERIC 1)
 	add_definitions(-D_M_GENERIC=1)
+elseif(_ARCH_64 AND (
+	${CMAKE_SYSTEM_PROCESSOR} MATCHES "^x86" OR
+	${CMAKE_SYSTEM_PROCESSOR} MATCHES "i.86" OR
+	${CMAKE_SYSTEM_PROCESSOR} MATCHES "amd64" OR
+	APPLE
+))
+	set(_M_X86 1)
+	set(_M_X86_64 1)
+	add_definitions(-D_M_X86=1 -D_M_X86_64=1 -msse2)
+	set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fno-pie")
+elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "aarch64")
+	set(_M_ARM 1)
+	set(_M_ARM_64 1)
+	add_definitions(-D_M_ARM=1 -D_M_ARM_64=1)
+	add_definitions(-march=armv8-a+crc)
+else()
+	message(FATAL_ERROR "You're building on an unsupported platform. Enable generic build if you really want a JIT-less binary.")
 endif()
 
 include(CheckCXXCompilerFlag)
@@ -423,6 +415,8 @@ if(ANDROID)
 	# We are cross compiling, search only the toolchain for libraries and includes
 	SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
 	SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+	SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY)
+	SET(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
 elseif(NOT APPLE AND NOT CMAKE_SYSTEM_NAME MATCHES OpenBSD)
 	list(APPEND LIBS rt)
 endif()

Readme.md

@@ -99,29 +99,7 @@ If using Android Studio, import the Gradle project located in `./Source/Android`
 
 Android apps are compiled using a build system called Gradle. Dolphin's native component,
 however, is compiled using CMake. The Gradle script will attempt to run a CMake build
-automatically while building the Java code, if you create the file `Source/Android/build.properties`,
-and place the following inside:
-
-```
-# Specifies arguments for the 'make' command. Can be blank.
-makeArgs=
-
-# The path to your machine's Git executable. Will autodetect if blank (on Linux only).
-gitPath=
-
-# The path to the CMake executable. Will autodetect if blank (on Linux only).
-cmakePath=
-
-# The path to the extracted NDK package. Will autodetect if blank (on Linux only).
-ndkPath=
-```
-
-If you prefer, you can run the CMake step manually, and it will copy the resulting
-binary into the correct location for inclusion in the Android APK.
-
-Execute the Gradle task `assembleArm_64Debug` to build, or `installArm_64Debug` to
-install the application onto a connected device. If other ABIs are eventually supported,
-execute the tasks corresponding to the desired ABI.
+automatically while building the Java code.
 
 ## Uninstalling
 When Dolphin has been installed with the NSIS installer, you can uninstall

Source/Android/app/.gitignore

@@ -1 +1,2 @@
 /build
+/.externalNativeBuild

Source/Android/app/build.gradle

@@ -2,8 +2,8 @@ apply plugin: 'com.android.application'
 
 android {
     // Leanback support requires >22
-    compileSdkVersion 23
-    buildToolsVersion '23.0.2'
+    compileSdkVersion 24
+    buildToolsVersion '24.0.3'
 
     lintOptions {
         // This is important as it will run lint but not abort on error
@@ -53,213 +53,40 @@ android {
             applicationIdSuffix ".debug"
             versionNameSuffix '-debug'
             jniDebuggable true
-
-            tasks.withType(JavaCompile) {
-                compileTask -> compileTask.dependsOn(compileNative)
-            }
         }
     }
 
-    // Define product flavors, which can be split into categories. Common examples
-    // of product flavors are paid vs. free, ARM vs. x86, etc.
-    productFlavors {
-        arm_64 {
-            dimension "abi"
-            ndk {
-                abiFilter "arm64-v8a"
-            }
+    externalNativeBuild {
+        cmake {
+            path "../../../CMakeLists.txt"
         }
+    }
 
-        x86_64 {
-            dimension "abi"
-            ndk {
-                abiFilter "x86_64"
+    defaultConfig {
+        externalNativeBuild {
+            cmake {
+                arguments "-DANDROID_STL=c++_static", "-DCMAKE_BUILD_TYPE=RelWithDebInfo", "-DENABLE_PCH=OFF" // , "-DENABLE_GENERIC=ON"
+                abiFilters "arm64-v8a" //, "armeabi-v7a", "x86_64", "x86"
             }
         }
     }
 }
 
 dependencies {
-    compile 'com.android.support:support-v13:23.1.1'
-    compile 'com.android.support:cardview-v7:23.1.1'
-    compile 'com.android.support:recyclerview-v7:23.1.1'
-    compile 'com.android.support:design:23.1.1'
+    compile 'com.android.support:support-v13:24.2.1'
+    compile 'com.android.support:cardview-v7:24.2.1'
+    compile 'com.android.support:recyclerview-v7:24.2.1'
+    compile 'com.android.support:design:24.2.1'
 
     // Android TV UI libraries.
-    compile 'com.android.support:leanback-v17:23.1.1'
+    compile 'com.android.support:leanback-v17:24.2.1'
 
     // For showing the banner as a circle a-la Material Design Guidelines
-    compile 'de.hdodenhof:circleimageview:1.2.2'
+    compile 'de.hdodenhof:circleimageview:2.1.0'
 
     // For loading huge screenshots from the disk.
     compile 'com.squareup.picasso:picasso:2.5.2'
 
     // Allows FRP-style asynchronous operations in Android.
-    compile 'io.reactivex:rxandroid:1.1.0'
-}
-
-task setupCMake(type: Exec) {
-    // Check if a build properties file exists.
-    def propsFile = rootProject.file("build.properties")
-
-    // If it does, call CMake.
-    if (propsFile.canRead()) {
-        // Read the properties file's contents.
-        def buildProperties = new Properties()
-        buildProperties.load(new FileInputStream(propsFile))
-
-        String abi = getAbi()
-
-        mkdir('build/' + abi)
-        workingDir 'build/' + abi
-
-        executable getExecutablePath("cmake")
-
-        args "-DANDROID=true",
-                "-DANDROID_NATIVE_API_LEVEL=android-18",
-                "-DCMAKE_TOOLCHAIN_FILE=../../../android.toolchain.cmake",
-                "../../../../..",
-                "-DGIT_EXECUTABLE=" + getExecutablePath("git"),
-                "-DANDROID_NDK=" + getNdkPath(),
-                "-DANDROID_TOOLCHAIN_NAME=" + getToolchainName(),
-                "-DANDROID_ABI=" + abi
-    } else {
-        executable 'echo'
-        args 'No build.properties found; skipping CMake.'
-    }
+    compile 'io.reactivex:rxandroid:1.2.1'
 }
-
-task compileNative(type: Exec, dependsOn: 'setupCMake') {
-    // Check if a build properties file exists.
-    def propsFile = rootProject.file("build.properties")
-
-    // If it does, call make.
-    if (propsFile.canRead()) {
-        // Read the properties file's contents.
-        def buildProperties = new Properties()
-        buildProperties.load(new FileInputStream(propsFile))
-
-        String abi = getAbi()
-
-        workingDir 'build/' + abi
-
-        executable 'make'
-
-        if (buildProperties.makeArgs == null || buildProperties.makeArgs.isEmpty()) {
-            // TODO
-        } else {
-            args buildProperties.makeArgs
-        }
-    } else {
-        executable 'echo'
-        args 'No build.properties found; skipping native build.'
-    }
-}
-
-String getExecutablePath(String command) {
-    def propsFile = rootProject.file("build.properties")
-    def path = null
-
-    if (propsFile.canRead()) {
-        def buildProperties = new Properties()
-        buildProperties.load(new FileInputStream(propsFile))
-        println buildProperties
-        path = buildProperties[command + "Path"]
-    }
-
-    if (path == null || path.isEmpty()) {
-        try {
-            def stdout = new ByteArrayOutputStream()
-
-            exec {
-                commandLine 'which', command
-                standardOutput = stdout
-            }
-
-            path = stdout.toString().trim()
-        } catch (ignored) {
-            project.logger.error("Gradle error: Couldn't find " + command + " executable.")
-        }
-    }
-
-    if (path != null) {
-        project.logger.quiet("Gradle: Found " + command + " executuable:" + path)
-    }
-
-    return path
-}
-
-String getNdkPath() {
-    def propsFile = rootProject.file("build.properties")
-    def ndkPath = null
-
-    if (propsFile.canRead()) {
-        def buildProperties = new Properties()
-        buildProperties.load(new FileInputStream(propsFile))
-        ndkPath = buildProperties.ndkPath
-    }
-
-    if (ndkPath == null || ndkPath.isEmpty()) {
-        try {
-            def stdout = new ByteArrayOutputStream()
-
-            exec {
-                // ndk-build.cmd is a file unique to the root directory of android-ndk-r10e.
-                commandLine 'locate', 'ndk-build.cmd'
-                standardOutput = stdout
-            }
-
-            def ndkCmdPath = stdout.toString()
-            ndkPath = ndkCmdPath.substring(0, ndkCmdPath.lastIndexOf('/'))
-        } catch (ignored) {
-            project.logger.error("Gradle error: Couldn't find NDK.")
-        }
-    }
-
-    if (ndkPath != null) {
-        project.logger.quiet("Gradle: Found Android NDK: " + ndkPath)
-    }
-    return ndkPath
-}
-
-String getAbi() {
-    String taskName = getGradle().startParameter.taskNames[0]
-    String abi;
-
-    if (taskName == null) {
-        return ""
-    }
-
-    project.logger.quiet("Gradle: Build = " + taskName)
-
-    if (taskName.contains("Arm_64")) {
-        abi = "arm64-v8a"
-    } else if (taskName.contains("Arm")) {
-        abi = "armeabi-v7a"
-    } else if (taskName.contains("X86_64")) {
-        abi = "x86_64"
-    }
-
-    project.logger.quiet("Gradle: ABI name: " + abi)
-    return abi;
-}
-
-String getToolchainName() {
-    String taskName = getGradle().startParameter.taskNames[0]
-    String toolchain;
-
-    if (taskName == null) {
-        return ""
-    }
-
-    if (taskName.contains("Arm_64")) {
-        toolchain = "aarch64-linux-android-4.9"
-    } else if (taskName.contains("Arm")) {
-        toolchain = "arm-linux-androideabi-4.9"
-    } else if (taskName.contains("X86_64")) {
-        toolchain = "x86_64-4.9"
-    }
-
-    project.logger.quiet("Gradle: ABI name: " + toolchain)
-    return toolchain;
-}