update zip file for android

Problems encountered:1.java.io.ioexception:open failed:einval (Invalid argument) exception, the SD card in the emulator creates folder and file times wrongThe cause of the error could be: (1) The file name contains non-conforming characters, such as ":", "? "or spaces, and so on. (2) You need to create a folder directory before creating the file, you cannot creat

You do not need to decompress the package and directly read the specified file in the ZIP file. For example, the file/sdcard/a.zipcontains the file z.txt. The read procedure is as follows: int zfd = zip_open("/sdcard/a.zip/z.txt");if (ZIP_IS_VALID(zfd)) {zip_seek(zfd, 5, SE

,. tar.bz2,. Z. Tar. 10 compressed Files of Z,. zip,. rarOperation.The following additionsTar-C: Create compressed archives-X: Unzip-T: View content-r: Append files to the end of a compressed archive file-U: Update files in original compressed packageThese five are stand-alone commands, which use one of the compression decompression, and can be used with other co

Using Zip for file transfer in an Android project can greatly reduce storage space and transfer traffic, so it involves compressing the zip file. The Java Native Zip API is described in detail below. First, a simple list of Java i

Use Xarain to download the forms program for the first time, prompting for errors.C:\Program Files (x86) \msbuild\xamarin\android\xamarin.android.common.targets (236,2): Error xa5208:download failed. Download Https://dl-ssl.google.com/android/repository/support_r19.0.1.zip and put it to the C:\Users\Admin\ appdata\local\xamarin\android.support.v4\19.0.1 directory

into the Decompression SDK installation package and into the installation state, the installation is complete after the completion of the operation.SDK installation package:wrote a program to analyze the Android SDK installation package update configuration file, namely: Https://dl-ssl.google.com/android/repository/re

in the program, the disadvantage is efficiency. Here, we need to note that we can decompress the compressed package and use the third-party tool ant. jar to decompress and compress the file. I will introduce how to use the ant tool in a later article. Main technical points: How to read resources in a zip file and store skin files Implementation solution: if t

Objective:Have done the Android network development know, in the network transmission we generally will turn on GZIP compression, but out of the nature of inquisitive only know how to open can not satisfy my curiosity, so think to write a demo test the more commonly used two data compression method, Gzip/zip compression.First meet the gzip compressionGzip is a website compression acceleration of a technolog

Recently need to compress the output files, understand the next Android compression function, the source code is as follows:Activity invocation:Try { ziputil2.zip (Exportpath, Exportpath+ ". zip"); Catch (Exception e) { // TODO auto-generated catch block e.printstacktrace (); } Compression class Prototypes: Package

is to pack all the files and directories in the/home/public_html/ad/directory and generate the ad.zip file under the current directory. You can also use the zip command to process multiple files and directories at the same time by listing them one by one and using the space interval: Zip-q-r ad.zip file1 file2/home/public_html/ad The above command is to package

restore the file time. For non-directory internal files, use unzopencurrentfile to open the file, and then unzreadcurrentfile to read the file content and write it into the real file. Unzreadcurrentfile returns 0, indicating that the file reading has ended. Limitations O

Java.lang.unsatisfiedlinkerror:dalvik.system.pathclassloader[dexpathlist[[zip file "/ data/app/Project Package name -2/base.apk ", zip file"/data/app/Project package name -2/split_lib_dependencies_apk.apk ", zip file"/data/app/Pro

Some demo here (http://www.example-code.com/java/zip.asp) Make ZIP file ImportJava. Io .*;ImportJava.util.zip .*; ClassMakezipfile {Public staticVoidMain (string [] ARGs ){If(ARGs. length! = 2 ){System. Out. println ("Usage: Java makezipfile [files to be zipped] [filename After Zip]");Return;}Try{String filename = ARGs [0];String zipfilename = ARGs [1];Makezipfil

The problem was discovered by chance when this compilation was published in the previous period: Zip error:invalid Command Arguments (cannot repeat names in zip file) Make: * * * [out/target/product/k200_hdmiin/system/etc /recovery-resource.dat] Error 16make: * * * waiting for unfinished jobs .... Background Introduction Bo Master is currently engaged

maximum compression ratio; -N specifies the compression ratio (n is a number and 1 -V displays the progress information; Bzip2/bunzip2 for compression/decompression [Syntax] Bzip2 file; Bunzip2 file; [Command description] Bzip2 can usually generate files with a higher compression ratio than gzip. by default, bzip2 will delete the source files. you can use the-k parameter to retain the source files; [Param

compression/Decompression [Syntax] Bzip2 file; Bunzip2 file; [Command description] Bzip2 can usually generate files with a higher compression ratio than gzip. By default, bzip2 will delete the source files. You can use the-k parameter to retain the source files; [Parameter description] -K: Keep the source file; -N specifies the compression ratio (n is a number a

Android Zip and AndroidZip Import java. io. bufferedInputStream; import java. io. bufferedOutputStream; import java. io. file; import java. io. fileInputStream; import java. io. fileNotFoundException; import java. io. fileOutputStream; import java. io. IOException; import java. io. inputStream; import java. io. outputStream; import java. io. unsupportedEncodingEx

essentials and verified them. Assume that there is a class named publicarea and another class named ziputil. The former is mainly used for data exchange and contains some global data. The latter provides a zip-related static method, extract the file data of the specified file name from the byte [] or inputstrem object. The publicarea class defines two global va

Android itself provides the decompression interface for the ZIP package1 /**2 * Decompression Operation3 *4 * @paramzipfilestring The extracted file path Sdcard/0/a/b/test.zip5 * @paramoutpathstring Extract the destination path sdcard/0/a/b6 */7 Public Static voidUnzipfolder (String zipfilestring, String outpathstring) {8FileInputStream

Original article: http://blog.csdn.net/zjujoe/article/details/6206010 Android OTA update: Compile the update package Author: Song Lixin Email: zjujoe@yahoo.comPreface OTA update is a standard software upgrade method provided by the Android system. It is powerful and provide