how to decompress file on android

* "File name:" + f.getname ()* "File is present:" + f.exists ()* "Relative path of File:" + F.getpath ()* "Absolute path of File:" + F.getabsolutepath ()* "file can read:" + f.canread ()* "File can be written:" + F.canwrite ()* "

Today production environment has a machine's hard disk full, troubleshooting found that my module in the/tmp/android-username directory left a bunch of shapes such as "emulator-1tph5l" files, occupy a lot of space.This module restarts several Android simulators repeatedly, creating a temporary file each time it is started, which looks like a copy of the system.im

each time through the output stream to the SD card to write files, connected to the computer, using MTP to simulate a mobile disk, open the disk but there is no such a file, and the way to see through the ADB, the cause of this phenomenon is that after each write, the MTP database is not updated, Because the update of the MTP database requires a large price ratio, so only in the restart, mount and the user manually send intent, so the

Steps1Get the path to the SD cardFile root =environment.getexternalstoragedirectory ();2Determine the path to the file to be writtenString path =root.getabsolutepath () + "/test2" + "/TEST3";3and turn the path into file.File file =new file (path);4 Creating a DirectoryFile.mkdir ();5 write the specified file in the spe

First assume developing A, and develop B, using SVN for project management. So a how can a lock file, prevent B modification.1, the first step, to the file lockComplete this step, then the file will not be locked.2, the second step, if B to the file modified a few lines of code, and then commit Development B commit fai

The obfuscation configuration file in the Eclipse project is copied to the as in the confusing process that prompts the following errorSolution:Delete the from -libraryjars libs/***.jar your Proguard-rules.pro file.The reason is that the Build.gradle file is configured withdependencies {Compile filetree (include: ' *.jar ', dir: ' Libs ')}Inside has been added jar package, confused

each time through the output stream to the SD card to write files, connected to the computer, using MTP to simulate a mobile disk, open the disk but there is no such a file, and the way to see through the ADB, the cause of this phenomenon is that after each write, the MTP database is not updated, Because the update of the MTP database requires a large price ratio, so only in the restart, mount and the user manually send intent, so the

Each time through the output stream to the SD card to write files, connected to the computer, using MTP to simulate a mobile disk, open the disk but there is no such a file, and the way to see through the ADB, the cause of this phenomenon is that after each write, the MTP database is not updated, Because the update of the MTP database requires a large price ratio, so only in the restart, mount and the user manually send intent, so the

Android parses the APK file on the SD card and android parses the sdapk public void parseApk(Context context, String apkFilePath){ PackageManager packageManager = context.getPackageManager(); PackageInfo packageInfo = packageManager.getPackageArchiveInfo(apkFilePath, 0); if(packageInfo != null){ packageInfo.applicationInfo.sourceDir = apkFilePath

Android -- extract file name from path, android -- Extract Method 1: Use the String classJava code Public String getFileName (String pathandname ){ Int start = pathandname. lastIndexOf ("/"); Int end = pathandname. lastIndexOf ("."); If (start! =-1 end! =-1 ){ Return pathandname. substring (start + 1, end ); } Else { Return null; } } Method 2: Us

============ Problem Description ============Because learning needs to look at the old Luo's video about the data stored in the SD card to write the part of the file to almost completely comply with the knock code results on the pad test and expected to have a difference originally should be stored in the SD card file results ran to the pad to bring in memory go ...And then I tried to write the path directl

the sdk is located. This folder is empty. I realized that this may be the cause. I don't know why, back up the previously installed sdk, and why is this folder empty, check the backup sdk and the folder is empty. How can this problem be solved? Google build-tools accidentally found the download link of sdk build-tools. Try again, decompress it to the build-tools Folder, and restart Android SDK Manager, une

The obfuscation configuration file in the Eclipse project is copied to the as in the confusing process that prompts the following errorSolution:Delete the from -libraryjars libs/***.jar your Proguard-rules.pro file.The reason is that the Build.gradle file is configured withdependencies {Compile filetree (include: ' *.jar ', dir: ' Libs ')}Inside has been added jar package, confused

One. Take the compiled. So library to the Android project, note that the folder structure can not be changed. Otherwise, the load library will appear to be unable to find the problem. The engineering drawing is shown in the following illustration: Two. Load a static library file in a Java file Note the static library load name, remove prefix lib and suffix.

Project home: http://code.google.com/p/51-android/ If you use an android real machine in Ubuntu to develop Android applications, you may encounter a problem. That is, your mobile phone cannot be correctly identified in eclipse, and thus the android application cannot be installed and debugged properly. Based on offici

1. init.rc File StructureFile Location:init.c:/system/core/initinit.rc:/system/core/rootdirFirst, the init.rc file is in modules, each module content is executed together, the module is divided into 3 types: on, service,Import. we can look at how the Init.rc file is written:1.Import Import/init.usb.rc Import/init.${ro.hardware}.rc Import/init.trace.rc The above

Android Some older mobile phone comes with a browser that may not recognize the APK type of file, so on the file server side need to make the following adjustments:Solution One:On the IIS server, add one of the MIME types:File extension:. apkMIME type: application/vnd.android.package-archiveSolution Two:The server is deployed under Tomcat and is already configure

I recently learned about Android development and wrote a file downloaded from the web server.ProgramThe program can be downloaded successfully, but the downloaded files are found to be different from the file size on the server. According to the many programs on the internet, no problems have been found, finally, I found a bug. The problem occurs in a program wri

First, write this log with great excitement ..... Googles is really awesome... let me have the honor to see the internal source code of the ANDROID application .... Let's get down to the truth: ANDROID applications are composed of two parts. 1. *. class File 2. * different tools are required for decoding xml files... The following describes *. class (class

First, write this log with great excitement ..... Googles is really awesome... let me have the honor to see the internal source code of the android application .... Let's get down to the truth: Android applications are composed of two parts. 1. *. Class File 2. * different tools are required for decoding XML files... The following describes *. Class (class