compress files on android

Android creates folders, generates files, and writes text files. 1. add permissions first 2. Create a folder, generate a file, and write the text file content codePrivate void initData (){String filePath = "/sdcard/Test /";String fileName = "log.txt ";WriteTxtToFile ("txt content", filePath, fileName );}// Write the string to a text filePublic void writeTxtToFile

Android stores and loads local files (internal storage devices) and android storage devices All applications on Android devices have a directory of files placed in the sandbox. Saving the files in the sandbox can prevent other app

/*************************************** **************************************** ************** Author: conowen @ Dazhong* E-mail: conowen@hotmail.com* Http://blog.csdn.net/conowen* Note: This article is original and only used for learning and communication. For more information, indicate the author and its source. **************************************** **************************************** ************/ 1. Introduction to Android audiotrack I

After several days of attacks, android should be an entry point. Now let's review it and give it to those who need to learn android.I used to learn C ++ embedded systems and write programs under wince. I have never done anything about java. I spent half a day browsing the java syntax and watched a video about environment setup, project establishment, and activity introduction in "Lao Luo android development

Android stores and loads local files (external storage devices) and android storage devices Sometimes the application needs to write data to the external storage of the device. If you want to share music, images, or online data with other apps or users, it is easier to share data stored on external devices. In addition, external devices usually have larger storag

Android open various files (setDataAndType) Java code /** * Open a file * @ Param file */ Private void openFile (File file ){ Intent intent = new Intent (); Intent. addFlags (Intent. FLAG_ACTIVITY_NEW_TASK ); // Set the intent Action attribute Intent. setAction (Intent. ACTION_VIEW ); // Obtain the MIME type of the file String type = getMIMEType (file ); // Set the data and Type attributes of intent. Intent

BKJIA Editor's note: Android consists of four main components: Activity, ContentProvider, Service, and Intent. To run Android files, you need to read and write files from four components. This article describes how to read and write Android

[Android-tips] Unable to execute dex: Multiple dex files define solution, android-tipsdex Well, I already thought about not moving android in the future. I didn't expect it to be a heavy job because of the competition. Android has many problems due to incomplete eclipse. For

Complete validity of verification files during Android running, android VerificationI. summary because the previous project has the dynamic hotfix function, a new dex file will be downloaded from the server during the restoration process to replace the old dex file, therefore, file identity verification is involved. the interface usually sends an MD5 value, but o

There are four main components of Android: Activity, ContentProvider, Service, intent. The operation of the Android file mainly requires reading and writing four components of the file. This article will show you how to read and write Android files and want to be helpful to friends who are developing

Some time ago, I processed Android music file information. I checked online and found that the Android system provided mediascanner, mediaprovider, mediastore, and other interfaces and provided a set of database tables, share content to users through content provider. Description: [Android data is private] data can be shared through the content provider method. I

the function declaration in the generated. h does not have a formal parameter, you need to add the parameter variable yourself when you implement it.Also note that you want to add a carriage return (the characteristics of the GCC compiler) after the blue curly braces.4. Making the. mk FileCreate a TXT file under this folder by creating a new plus folder under the Apps directory in the NDK directory.Enter the content:App_project_path: = $ (call My-dir)App_modules: = PlusRename to Application.mkI

Secondary packaging of Android apps (APK files), Android apk Many developers, whether individual or company, do not pay much attention to the security of their own applications, that is, whether the code will be tampered with by criminals, malicious code insertion, spam ads, or even theft of user information. I did not care too much, but I did not find the severi

As the project becomes more and more, the reuse of code becomes more and more important, so it is necessary to do modular programming, that is, to make some common components or class libraries into a separate module, other projects directly to the reference. The Android library is the most common for Android development, and it's cumbersome to quote the Android

How does Android find appropriate resource files based on the delimiter ?, Android resource file Reprinted please indicate the source: http://blog.csdn.net/zhaokaiqiang1992 This article mainly introduces how the Android system filters and selects resource folders based on certain rules when we use a qualifier to mo

Cause: After updating ADT and other support libraries in Sdksdk Manager, eclipse error: This Android SDK requires Android Developer Toolkit version 23.1 errors. But SDKSDK manager clearly shows that 23.1 of ADT is already installed, which is strange.Workaround: Help, Install New software, ADD->http://dl-ssl.google.com/android/eclipse/after you update ADT here, ev

Cause: After updating ADT and its supporting libraries in Sdksdk Manager, eclipse error: This Android SDK requires Android Developer Toolkit version 23.1 errors. But SDKSDK manager clearly shows that 23.1 of ADT is already installed, which is strange.。Workaround: Help,Install New software, ADD->http://dl-ssl.google.com/android/eclipse/after you update ADT here. E

.zipHttp://dl-ssl.google.com/googleadmobadssdk/googleadmobadssdkandroid-4.3.1.zipHttp://dl.google.com/gaformobileapps/GoogleAnalyticsAndroid_1.4.2.zip The latest Android SDK (4.0.3) is using the new repository XML files as below.Http://dl-ssl.google.com/android/repository/repository-5.xmlhttp://dl-ssl.google.com/android