Shulou(Shulou.com)06/02 Report--

This article shows you how to debug the Eclipse Android source code project, the content is concise and easy to understand, absolutely can make your eyes bright, through the detailed introduction of this article, I hope you can get something.

A detailed explanation of the content of Eclipse Android source code

1. Compile the source code under ubuntu

* switch to root user for operation

$sudo-s

(1) download and install jdk1.5 (download the self-extracting version and set the environment variable)

Edit / root/.bashrc add

# set java environment export JAVA_HOME=/work/jdk1.5.0_22 export JRE_HOME=JAVA_HOME/jre export CLASSPATH=$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH export SDK_HOME=/work/froyo/out/host/linux-x86/sdk/android-sdk_eng.root_linux-x86/tools export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$PATH:$SDK_HOME:/work/froyo/out/host/linux-x86/bin export ANDROID_PRODUCT_OUT=/work/froyo/out/target/product/generic

(2) install (apt-get install xxx)

Git-core gnupg flex bison gperf libsdl-dev libesd0-dev libwxgtk2.6-dev build-essential zip curl libncurses5-dev zlib1g-dev

(3) download the source code (detailed instructions are available online)

(4) compile the source code

$export ANDROID_JAVA_HOME=$JAVA_HOME $make

Check to see if there are any errors in the compilation process. In general, there will be no errors. If there is an error, it may be that a dependent package is not installed. Install the dependent package prompted and make it again.

(5) generate sdk

$make PRODUCT-sdk-sdk # there is a problem that R files cannot be generated automatically when using make sdk

After compilation, sdk is generated in the / work/froyo/out/host/linux-x86/sdk/ directory

(6) check whether the compilation is successful after the compilation is completed.

$. Build/envsetup.sh $emulator& / / starts the simulator. If it starts successfully, it will compile successfully.

2. Debugging in Android Eclipse

(1) copy development/ide/eclipse/.classpath to the source code root and modify .classpath

Delete the following two lines

Add

(2) modify in eclipse

(2.1) Import froyo source code through create project from existing source

(2.2) expand packages/providers/CalendarProvider/src

(2.3) deployment package: com.android.providers.calendar

Right-click the package com.android.providers.calendar

(2.5) Select "new file"

Click the "Advanced > >" button in the dialog box to see the "Link to file in the file system" checkbox.

(2.7) check checkbox. At this time, "Browse..." Available.

Click "Browse..." Button, select EventLogTags.java (e.g.Magna outdated target bank common.obj qqpr _ r _ r

(2.9) Click OK

Click Finish (in "New File")

(3) modify com.android.providers.contacts in the same way

3. Debugging

Compile and run in shell after modifying the source code in IDE (eclipse)

The source code comes with a compilation tool.

First execute in the root directory of the Eclipse Android source code. Build/envsetup.sh is then compiled through m/mm/mmm

-m: Makes from the top of the tree. -mm: Builds all of the modules in the current directory. -mmm: Builds all of the modules in the supplied directories.$cd / path/to/android/root $. Build/envsetup.sh $lunch 1 # initialization simulator and other $make/m/mm/mmm # $emulator& # you should see a GUI picture of a phone $ddms& # debugging tools

(1) modify APK applications: applications in packages can be compiled separately after modification. Execute first

. Build/envsetup.sh # initialize $mmm packages/providers/ContactsProvider/ # # the generated .apk compiled with mm/mmm is not packaged into system.img. You need to manually package the system folder into system.img through make snod # # you can use make snod to package the module into system.img, or you can install it using adb install * .apk

Note: apk compiled by mmm packages/providers/ContactsProvider/ in out/target/product/generic/system/app

At this point, install your newly modified apk through adb install out/target/product/generic/system/app/xxx.apk and you can see the effect of your modification on the simulator.

(2) modify framework: if you modify it in Contacts.java, you must recompile the framework. Execute first

$. Build/envsetup.sh # initialization

# some people on the Internet say that they want to execute make update-api, but in fact, directly make PRODUCT-sdk-sdk can compile the modified framework into sdk. # after compiling framework, those modified applications can no longer be compiled separately. 4 minutes and 6 minutes

$make PRODUCT-sdk-sdk # regenerate SDK 10 minutes 20 minutes. The above content is how to debug the Eclipse Android source code project. Have you learned the knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.