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Download and decompress the Zip file based on Android, and update the simple help class of the UI
Download file:
/*** Download File ** @ param down_url * @ param output * @ param tmpDi
);//set Display Download interface -Requestapk.allowscanningbymediascanner ();//indicates that Mediascanner is allowed to scan to this file, which is not allowed by default. -Requestapk.settitle ("xxx update download");//to set up a notification bar in the download prompt message -Requestapk.setdescription ("xxx updat
(Transferred from: http://wenku.baidu.com/view/af39b3164431b90d6c85c72f.html)Seven, the sixth day of Android learning--sqlite and file download
Sqlite
SQLite is a very small relational database embedded in Android.Summary: When we operateIn the study of SQLite, encountered two questions:(a) If we succeed in setting up the
string dirName =" ";d irname = Environment.getexternalstoragedirectory () + "/mydownload/"; File F = new file (dirName), if (!f.exists ()) {F.mkdir ();}Download the operation://ready to splice the new file name (the file name saved on the memory card) String NewFileName = _
to the description described above. We should be able to know. To achieve the continuation of the breakpoint, the key is to implement the downloaded data stored in the database, and then after our program again into the time, will go to the database to query data. Then continue with the download.While storing data to a database is not too complicated, it is difficult to identify which data is being downloaded. What data is not downloaded. Here, we use the downloaded thread ID to do the identifi
1. android file apk Download zip archive package SolutionIf your download server is an Nginx server, then in the Nginx installation directory of the Conf/mime.types file corresponding location, plus the following line of statements, the specified APK
the following operations.
I know how to get the sdcard directory, and then we have to create our own files in the directory first. How do I create files? So I won't talk about it. Let's go to the Java basics. After creating the file, we have created the file you want to download in step 2.HttpurlconnectionObject through itsGetinputstream ()You can get the inpu
[Android-007] [network image Viewer]
Network Image Viewer
Determine the image URL to send an http request
URL url = new URL (address); // gets the connection object and does not establish a connection HttpURLConnection conn = (HttpURLConnection) url. openConnection (); // set connection and read timeout conn. setConnectTimeout (5000); conn. setReadTimeout (5000)
I have written several articles about downloading. In general, the following points:1, maintenance of a download process Hashmap,key: Using MD5 to process the file, value for the downloaded task.To prevent the download from recurring. and save the information to the database.2, download thread task inherits from Runnab
Problem description: In the XP system where Visio Viewer 2003 is installed, double-click the. Sealing file to jump out of IE and select allow active running. A Red Cross is displayed and cannot be opened.
Cause: Microsoft's kb973525 caused
Solution:
1. Retain Visio Viewer 2003 to uninstall the system patch kb9735252. Install the following system patches to uninst
There is now a need to download many files, put in an open port (URL) directory, the files under this directory will change, that is, the file name is not fixed. Now you need to download the files in this directory to the Android device. I found a lot of information and found that I could not list all the files in a UR
Description
In fact, Android rarely use FTP and server interaction, especially the file upload and download operations, performance first, the entire code is very embarrassing, the basic need to use the native API to operate. There's not much encapsulation here,
Just complete the function, after all, FTP is not the mainstream of
(buffer)) > 0) {randomfile.write (buffer,0, lenght); Debugtracetool.debugtracee ( This, "file length = =" +randomfile.length ()); } randomfile.close (); Httpget.abort (); } Catch(Exception e) {e.printstacktrace ();}Points to note:1. You need to start a single thread and cannot perform a file download operation on the main thread.2.
Android for multi-threaded download:First look at the following:UI interfaceMulti-threaded download when log print interfaceTo get started, we first connect the files that need to be downloaded through the HttpURLConnection class:New Thread (New Runnable () {@Overridepublic void run () {try {url = new URL (downurl); HttpURLConnection conn = (httpurlconnection) url.openconnection ();//Conn.connect (); totall
Android Network File upload and download tool class Summary
1. Get the last modification time of the file
@ SuppressLint ("SimpleDateFormat") public String getFileDataTime (File file) {Date date Date = new Date (
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