how to extract file on android

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

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

In general, there are three ways to store data: One is a file, one is a database, and the other is a network. Here is a description of how the Android file is stored in this article. 1. File storage data used Java in the IO operation to save and read files, but android in t

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

There are many ways to extract the Android file system. Today I will explain how to extract the file system from the source code completed by make. In the compiled android source code directory, the

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

Some time ago, due to customer requirements, a client was used to combine web microsite applications. Here, this application is designed to modify the profile picture, but this page is implemented on the micro-website, which means that the website needs to call the Android method to open files, how is this implemented through webview? After discussion with colleagues on the server, I found that the methods are the same as those on the pc. They call an

We often need access to the contents of the SD card in the development of Android, and because there are so many files, we want to search the SD card. This article gives an example of an Android development that demonstrates how to search for files in an SD card. Instance interface First let's see what the interface looks like when the program is running: Set the search directory in the first edittext,

actual desired modifications inside the. apk file2. Sign the. apk3. Install the. apk on the device1. The resource in the. apkOpen the. apk file with WinRAR (IF-doesn ' t work, rename the file extension. apk to. zip)Change the resource in the archive as desired (packager tools allow to change files without the need to extract the Archiv EOnce you ' re do with you

In Android, these files are stored in/Data/Package_name/FilesDirectory. Data Reading Public static string read (context, string file) {string data = ""; try {fileinputstream stream = context. openfileinput (File); stringbuffer sb = new stringbuffer (); int C; while (C = stream. read ())! =-1) {sb. append (char) C);} stream. close (); Data = sb. tostring ();}

Resources are additional files that you use in your code and are packaged into your application during compilation. Android supports a variety of different files, including XML, PNG, and JPEG files. The format of an XML file depends on the content it describes. These files describe the types, syntaxes, or formats supported by the files. In consideration of loading efficiency, resources are separated from th

In this paper, we describe the method of segmentation and assembly of the Android file by example, which is mainly for the segmentation and assembly of UDP packets. Share for everyone to use for reference. The specific methods are as follows: In general, when you send a file by using a UDP packet, due to the size of UDP packets, a

How do you get rid of images loaded in Android apps and some data caches? Recently in the project encountered this problem, search the Internet to find a lot of source code, the synthesis of these sources, the following to tell us how to effectively clear the application memory cache information? The purge application internal cache consists of the following major modules: One, clear apply all local Database cache /** * Clears all databases

This article describes the implementation of Android download file function of the complete sample code, for learning and research on Android programming is believed to have some help, especially for Android beginners have some reference value. The full functional code is as follows: Package com.test; Import Java

For people engaged in Android development, encountering ANR (application not responding) is a more common problem. In general, if a ANR occurs, the system will generate the trace file in the/data/anr/directory, by analyzing the trace file, you can locate the cause of the ANR. There are many reasons for the ANR, such as high CPU use, the event did not get timely r

This article illustrates the simple File Manager implementation approach for Android development. Share to everyone for your reference, specific as follows: Here using Java I/O, listactivity, Dialog, bitmap and so on to implement a simple File manager, you can view the directory file, modify the

Baidu Cloud software users to the detailed analysis to share the Baidu Cloud Android version of the method to open the preview file. Method Sharing: Through Baidu Cloud Android client can directly open the cloud online files. Just click on the appropriate file to open the preview. A picture type of

The following is a summary of the way to read and write files in Android, the need for friends can come to refer to the next First, get the file from the Raw folder in resource and read the data (the resource file can only read and write) Copy Code code as follows: String res = ""; try{ InputStream in = Getresources (). Openrawresource (R.raw.bbi); //In

Access permissions for Linux files * In Android, each application is an independent user* DRWXRWXRWX* 1th: D means folder,-indicates file* 第2-4位: rwx, representing the owner of this file (the application that created the file) the user's permissions to the file* R: Read* W: