dx

Android dx tool

时光毁灭记忆、已成空白 提交于 2019-12-17 23:37:35
问题 Does anyone know of any documentation for dx? In particular I am interested in knowing what the --core-library option does. Can anybody shed any light on that? 回答1: This is a special purpose flag that is only used when building some of the framework jars (core.jar, framework.jar, etc.). Normally, dx will refuse to process any java.* or javax.* classes. So this option is used for core.jar, where all those classes are actually defined. Here's a relevant blurb from the dx source (dalvik/dx/src

--core-library error with build tools android (Eclipse)[solved with android studio]

自闭症网瘾萝莉.ら 提交于 2019-12-12 05:29:30
问题 I am trying to build an apk with xmlParserAPIs-2.6.2.jar using eclipse without Maven . But unfortunately it gives following error. trouble processing "javax/xml/parsers/DocumentBuilder.class": Ill-advised or mistaken usage of a core class (java.* or javax.*) when not building a core library. look at this image for error - Image I follwed https://stackoverflow.com/a/11090774/1602333 and put this exec java $javaOpts -jar "$jarpath" --core-library "$@" Dx File Image in my build tools (21.1.2) dx

porting javac and dx to android

只谈情不闲聊 提交于 2019-12-11 17:32:21
问题 Hi i'm planning on porting the javac compiler and dx converter to android..Is this going to be a trivial Task or are there any major Roadblocks? My idea is to create an app so that people can compile java source code in the android devices and maybe even make android apps in the same android devices... is this possible? 回答1: Most people would not consider it trivial. You list javac and dx as things that need to be ported. Those are certainly requirements. You would need to create an ARM port

Creating a DEX file from Java source code

混江龙づ霸主 提交于 2019-12-10 15:46:19
问题 I have searched extensively on the web for a comprehensive guide to creating an Android DEX file (Java Dalvik bytecode) using the Android SDK DX tool. My aim is to create a Jar file that contains DEX byte code which can be loaded by an application at runtime. To create the Jar file I have been following these steps: Java source code containing a public class (Name.java) Compile .java file from step 1 into .class file using javac Name.java Created a Jar file from the class file. jar cvf output

高等数学笔记第四天

三世轮回 提交于 2019-12-08 17:14:05
0/0, ∞/ ∞ 未定式的处理 : 洛必达法则:(适用于 0/0型 未定式) 内容: 若 lim f(x)/F(x) = 0/0, 则有 f(x) / F(x) = lim f'(x) / F'(x) ,注意,它对于: x-> A 或者 x-> ∞都适用。 前提: lim f'(x) /F'(x) = A 或者 ∞; 若lim f(x)/ F(x) = ∞/ ∞, 也可以适用洛必达法则; 趋于∞的速度,对数函数 < 幂函数 < 指数函数. 对于较为复杂的式子,应当及时分离 非零 极限的乘积 因子,可减少计算量。 此外,可使用等价无穷小的替换。(前提是必须为等价无穷小才行)。 常见的三个等价无穷小: 1.指数: 2.对数: ln(1 + x) ~ x; 3.幂数: 其它未定式的处理 : 1. ∞*0 型未定式: lim f(x)*g(x) ----简单因子放入分母---> , 即 转化为: 0/0 ,或者 ∞/∞; 2.∞-∞型未定式: lim [ f(x) - g(x)] --->通分 或者 分母 有理化 ; 即 将 整式 转换为 分式; eg: lim sec x - tan x , x-> π/2; 3.幂指函数: 方法见之前的笔记。 eg: lim x^x,x -> 0+; ; 泰勒公式: 内容: 设 f(x) 再 x0 处有 n 项导数,则 存在 x0 的一个领域

How to force Delphi to use D8.bat instead of dx.bat to compile Java 1.8 bytecode into DEX bytecode

北城余情 提交于 2019-12-08 07:20:51
问题 Today I faced a problem. My project needs to use some libraries (*.jar) that use Java 1.8 features. I see more and more libraries use now Java 1.8 features (like webRTC, exoplayer, etc.). In this way, we must do desugaring . Desugaring allows you to use these features on older devices by replacing new bytecodes and language APIs with older ones during the build process With d8.bat (replacement of dx.bat ), desugaring is turned on by default. So you can now use most of the latest language

Android Studio: Failed to load dx.jar

♀尐吖头ヾ 提交于 2019-12-06 17:01:14
问题 When I run my module in Android Studio I get this error: Error:Android Dex: [GradleDevBuild] Failed to load dx.jar I have searched endlessly for a solution online but everything is related to eclipse, there is nothing when it comes to Android Studio. The path to the dex.jar is C:\AndroidSdk\build-tools\26.0.0\lib\dex.jar So it does exists, I've moved it out of the folder and was notified that it moved so AS is aware of where it is. I have tried copying it into the root directory and into the

Kotlin compiler on android

旧街凉风 提交于 2019-12-06 06:23:57
问题 I'm trying to create a dex of the huge jar of the kotlin commandline compiler, so I can develop (i.e. compile) kotlin on a phone (in termux ). But dx runs out of RAM and is "Killed". So, maybe divide into smaller dex s, and run as multidex? (also, close all other apps!) Divide into dex s : fully extract the jar to files; separate with parallel directory structures; then apply dx to create one dex per root. This worked, and I found dx could handle up to 13MB of classes, and I got the total

ANDROID - dx processing too slow

浪尽此生 提交于 2019-12-05 04:12:48
Is there a way in eclipse to pass parameter to dx (--no-optimize, etc) to improve speed of dx processing? create methods with less than 300 lines, divide the maximum you can, before I had created a method with 2000 lines and it took 10 minutes in Dx processing. 来源: https://stackoverflow.com/questions/9332778/android-dx-processing-too-slow

printf中的自增运算符

非 Y 不嫁゛ 提交于 2019-12-04 16:40:52
前言 文中均设i=5,汇编代码: movl $5, -4(%rbp) // 将5赋值给rdp向下偏移4个指针的头指针(i) 在装用gcc环境的PC下,可以使用 gcc -S -o assembly.S yourcodefile.c 打印汇编代码。首先打印出简单自增运算的汇编代码: i++; 的汇编代码 在早版本的编译器中可能是如下表达形式,而在最新版的gcc中, i++; 与 ++i; 的汇编代码是一样的。 movl -4(%rbp), %eax // 将i赋值给ax寄存器, ax=5 leal 1(%rax), %edx // 将ax寄存器的值加1赋值给dx寄存器, dx=ax+1=6 movl %edx, -4(%rbp) // 将dx寄存器的值赋值给i, i=dx=6 ++i; 的汇编代码 addl $1, -4(%rbp) // 将i的值增加1赋值给i, i=6 printf函数的自增运算符 printf("%d",i++); 通过拓展 i++; 的早期汇编代码,可以推出 printf("$d",i++); 的汇编代码如下所示: movl -4(%rbp), %eax // 将i赋值给ax寄存器, ax=5 leal 1(%rax), %edx // 将ax寄存器的值加1赋值给dx寄存器, dx=ax+1=6 movl %edx, -4(%rbp) //