This article is an example of how Android implements file uploading based on HTTP protocol. Share to everyone for your reference, specific as follows:
Note The general use of HTTP protocol upload files are relatively small, generally less than 2M
Here's an example of uploading a small MP3 file
1. Main Activity:MainActivity.java
public class Mainactivity e
Android learning 10 (android file storage)
The android system provides three methods for simple data persistence, namely file storage, SharePreference storage, and database storage. You can also save the data to the SD card.
File
Chapter 2 androidmanifest. xml file
Each Android Application must have an androidmanifest. xml file under the root directory (the file name must be this ). This manifest file lists the required information of the application to the Andro
Local_path: =$ (call my-DIR)
1 local_path must be located at the beginning of the android. mk file. It is used to locate the source file,$ (Call my-DIR) is used to return the path of the current directory.
Include $ (clear_vars) is used to clear the values of some variables, except for local_path.
Local_module is used to specify the name of the modul
Video file upload protocol analysis in Android
L run the web application on the server,
L upload a video file, capture data packets with httpwatch, and explain the following:
POST/videoweb/video/manage. do HTTP/1.1Accept: image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/vnd. ms-excel, application/vnd. ms-powe
Android-simple sdcard file browsing, android-sdcard
Function: allows you to browse the folders and files on your mobile phone. The code is usually too simple.
First view Layout
Main Function
1 package com. example. fanlei. myservicedemo; 2 3 import android. annotation. targetApi; 4 import
The android. mk file is a required file for compiling C code using ndk. The Android. mk file describes which c files will be compiled and how to compile them. To understand how to compile Android. mk files, you can master the keyw
Previously, I briefly introduced two data storage methods, for example, shared preferences, in [Android evolution 14th], I wrote an example of the address book for storing data in the SQLite database. Next I will introduce the format of storing data in file. I will talk about two points in file format, files cannot be shared among different programs. Another feat
The batch file upload function is often used in the project. This problem is solved today and can be written here for future reference. First, batch file upload in the following architecture may fail or fail: 1. android client + springMVC server: the server uses org. springframework. web. multipart. multipartHttpServletRequest is used as the batch upload receivin
By default, webview that use Android are not able to support uploading files. And this, is also after our front end engineer informs to understand. Because there is a difference in the implementation of each version of Android, you need to webview different versions. It took a little time to refer to someone else's code, and the problem was solved, and here I shared the pit I stepped on.The main idea is to
. Some of your own words:This is my first blog, a long time ago to write, but a little afraid, this thing takes time and energy. And then their own this side of the way, the basic is self-study, a lot of things just start completely do not understand, some mistakes, online can not find a solution, ask questions, not get timely reply, also not necessarily to be resolved.Sometimes really forced into the desperate situation, I am very hard, a lot of things have been deleted, a step by step start, t
Objective:In our app development process basically will use the file storage, so file storage for us is quite familiar with, but since the release of Android 6.0, access to external sdcard based on the runtime permissions mechanism is required to dynamically request permission, So the previous direct SDcard root directory directly to create a new xxx/cache/ direc
Android environment is finished, directly is a HelloWorld program, please see "Using Adt-bundle easy to build the Android development environment and Hello World (Linux)" which makes it difficult for many people to clarify the basic structure of the entire Android project. In fact, the Android project, with other Java
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1,
In the android Java layer
First of all introduce Android using caching mechanism to implement file download
When downloading files or browsing files online, or in order to ensure the correctness of file downloads, you need to use the caching mechanism, often using softreference to implement.
The SoftReference feature is that an instance of it holds soft references to a Java object that
Three File data external storage
Each Android device supports a shared "external store" that you can use to save files. This could be a removable storage medium (such as an SD card) or an internal (fixed) store. Files saved to the external store are public and can be modified by the user.
Note: Files on external storage devices, all applications can access it, and can even be connected directly to the compu
ECLIPSE android layout page file error troubleshooting Exception raised during rendering: java. lang. System. arraycopy ([CI [CII) V, page file
Manually add or drag controls to the layout. After edittext is added, the layout is not easy to use and other controls are easy to use. Then let's talk about the following section.
Exception raised during rendering: java.
Android mobile guard-signature file description package Name Description, android guard
In the article "Android mobile guard-pack and generate an apk to maintain the server", the new apk version is implemented to the server. When the client apk is opened, a new version is found, prompting for updates. The xutils tool
Http://xmagicj.diandian.com/post/2011-11-22/7022215
Automatically compile the build. xml file using the android command
Purpose: Perform automatic integration and compilation environment.
I won't talk about environment matching (SDK/environment variables ).Enter the CMD interface.Enter the project directory.
Input:Android. Bat list targetTo query our existing version list.
Remember this ID number, which wil
, IW, Ja, ko, lt, lv, MS, NB, NL, pl, PT, pt-rpt, RO, Ru, SK, SL, SR, SV, SW, TH, TL, TR, UK, VI, ZH-R TW, zu strings.xml/projectname/res/values line Android Lint problem "error, in Will"missingtranslation"from "fatal" is changed to "warning" or "warning" option below.Go onAfter solving the above problem should be no problem, continue to export the signature package, the following dialog may appear, meaning that you need to set the debugableHowever, o
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