The introduction of Downloadmanager in Android 2.3 can handle complex file downloads, including checking whether a user has data connections (WiFi or mobile data) when the user moves from a data connection to a disconnected place (for example, leaving WiFi or 3G Data access point) to ensure that the device remains awake during the download process. Downloadmanager can handle HTTP URLs, but cannot handle HTT
Android sdk 8-10 Mbit/S download speed, as shown in the figure below1. Force use of http to replace the https Link
Tools, select Options, and select "Use Download Cache" and "Force https ://... Sources to be fetched using http ://..." And use download cache
2. Disable the xml Link Library for the dl-ssl.google.com
controls and custom attributes (note namespaces) in layout files.
4. Calling in Mainactivity
Full Instance code click here Download the site .
More interested readers of Android-related content can view the site: "Summary of Android Control usage", "Android View Summary", "Andr
Today we have compiled 16 of the most popular Android Apps, mainly based on the download volume of 2013 of users, which is sufficient to prove their popularity. If you haven't installed them yet, try it now!
Address: http://thetop16.com/top-android-apps-169.html
1. Facebook (Social)
Keeping up with friends is faster than ever.* See what friends are up* Share upd
Recently researched multi-threaded download, wrote a demo, finishing down, may be helpful to others.Multi-threaded download generally open two to three threads. If there are too many threads, time can be wasted on the thread switching, which is a waste of time. Too many threads is not a good thing.The principle is to look at my other blog post, in fact, the code is ported to the
Android open-source framework Universal-Image-Loader 6-hard disk cache policyZookeeper
Hard disk cache policy:
LimitedAgeDiscCache (sets the maximum time for a file to survive. When this value is exceeded, the file will be deleted)
UnlimitedDiscCache (this cache class has no restrictions)
Inheritance relationship:
public class LimitedAgeDiscCache extends BaseDiscCachepublic abstractclass BaseDiscCache impl
1. Install ubuntu12.04
I personally prefer to develop in windows, so I chose virtual box4.1.16 for Ubuntu installation. The specific methods for installing Ubuntu on a virtual machine are not described here, the only note is that the hard disk storage image is larger, and I open 60 Gb. It is best to select "Dynamic Storage Allocation ", this is because a large amount of space will be used to compile the android source code in the future, and an error
:
# Google Homepage203.208.46.146 www.google.com# This line is used to enable the official Android development website. Now it seems that you can enable it without using VPN.#74.125.113.121 2.16.android.com# Download the updated content from the following address:203.208.46.146 dl.google.com203.208.46.146 dl-ssl.google.com74.125.237.1 dl-ssl.google.com
2. Start Android
Chapter 6 surfaceview Animation
Difficulty: Moderate
The content described above is relatively simple. With this knowledge, you can complete some non-real-time games, such as the game player, or some games with low screen refresh frequency and poor real-time performance, for example, we used mine clearance. However, our goal is the tank war, which requires a lot of real-time operations, and many more NPC workers need to handle the problem. The drawing
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 = _urlstr.substring (_urlstr.lastindexof ("/") +1); NewFileName = _ DirName + newfilename; File File = new file (newfilename);//If the destination file already exists, delete it. Prod
problems.
6. Install repo
Copy codeThe Code is as follows: cd
Mkdir bin
Curl https://dl-ssl.google.com/dl/googlesource/git-repo/repo> ~ /Bin/repo
Chmod a + x ~ /Bin/repo
Alias repo = "~ /Bin/repo"
If we need to run the repo at any time, we 'd better configure the repo in the environment:Copy codeThe Code is as follows: vim ~ /. Bashrc# After opening the file, add alias repo = "~ /Bin/repo ", save and exitSource ~ /. Bashrc
In this user environment, y
As mentioned earlier, Android porting is primarily a Linux kernel migration, and Linux kernel porting is primarily a Linux-powered migration, so in order to develop and test Linux drivers, it is necessary to learn in Ubuntu How to build two sets of development environments under Linux: Android Application development environment and Linux kernel development environment. The construction of the Linux kernel
Detailed analysis of resumable download for Android 2
Since a blog cannot be written, this is followed by the previous blog.
After finishing the View in MVC, we need to consider the Control layer. His task is to use multithreading in the background to implement breakpoint download.
First look at the source code:
Public class FileDownloader {/* TAG for debugging
source code download, often will break off, at this time, you have to re-enter repo sync, then, is there a way to automatically repo sync when the network is broken?Solution:VI repo_sync.sh#!/bin/bashRepo SyncWhile [$?-ne 0]DoRepo SyncDoneubuntu10.04 amd64 git version upgrade, error:exited sync due to GC errors[Plain]View Plaincopy
ubuntu10.04 appears error:exitedsyncduetogc Errors workaroun
Because the project requires a download management module, we have been studying the implementation of File Download recently, and have finally finished it through continuous efforts! In File Download management, we need to save the file information, including the file size, file name, and type. Now we need to use the database. The
skipped, you need to change "repo" in the above command to "../bin/repo" so that the terminal can recognize the repo command.6. the user name and email address are required. You can enter them randomly. If you want to submit a bug to google in the future, you need to enter a valid google account. If "repo initialized in/home/taskiller/android" is displayed, the initialization is complete and the source cod
/xlwxguanwang.apk ';//file (with Baidu Cloud test) Ofile: = Tfilestream.create (Sfilepath, fmcreate); Files saved after download the path of try progressBar1.Value: = 0; Idhttp1.Get (Surlpath, ofile); except to the end; Ofile.free; The end; the function TForm1.DownFilePath:string; The Result: = Tpath.getdownloadspath + Pathdelim; The end; Procedure Tform1.idhttp1work (Asender:tobject; Aworkmode:tworkmode; A
This article is an example of how Android implements multithreaded download files. Share to everyone for your reference. Specifically as follows:
Multithreading download is probably the idea is to implement the file segmentation through the Range property, and then use Randomaccessfile to read and write files, and eventually merged into a file
First look at the
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.