Due to the gfw of Android developer, the first time you run Android studio, you may not be able to download related components with the following errors:Android Studio doesn ' t start, fails saying components not installedThe solution is as follows, Ubuntu under pro-Test effective.Edit the option file for studio~/. And
Ionic package project, run the error A problem occurred refreshing root project 'android'..., ionicconfiguring
The error message returned when the sdk is not downloaded completely.
Solution:
1. Open the sdk manage. Download the three sdk packages: android support repository, Google play services, and google re
class Rsspullservice extends Intentservice {public rsspullservice () {Super ("Rsspullservice");} @Overrideprotected void Onhandleintent (Intent workintent) {//Receive parameters. Do time-consuming processing. Processing is complete. Send broadcatstring localurlstring = workintent.getdatastring (); String data = Download (localurlstring), Intent localintent = new Intent (constants.broadcast_action); Puts the status into the Intentlocalintent.put
-> bashFilesystem images -> cpio the root filesystemFilesystem images -> tar the root filesystem
$ Export BR2_JLEVEL = 4
$ Make linux-menuconfigDevice Drivers -> (*) Staging drivers -> (*) Android -> (*) Android Binder IPC DriverFile systems -> (*) FUSE (Filesystem in Userspace) support
$ MakeYou can specify your own rootfs and store the target arm executable files in this directory/home/payne/qem
I. Overview of the problem
Android Development uses an emulator to test the app, but whether you use the Eclispe ADT or the Android Studio emulator is based on the arm architecture and runs slowly, the light starts up and takes a lot of time and doesn't know what it's loading. Today, we recommend a new Oracle VM VirtualBox-based emulator--genymotion, which is now the most fire simulation artifact
Document directory
1. Install JDK
2. Install the compilation tool
3. Create a working directory
4. Install the repo version management tool (based on Git-based development to facilitate git Resource Management)
5. Prepare to download the android source code.
6. configure a repo account
7. Download the source code of
Android beginners (1) -- download and install Android Studio and androidstudio
Android studioAs Google's parent son and ADT used earlier, Google has released a "Declaration" that will no longer be maintained. Therefore, it has become our first choice.
So how do we get started?
D
Show Run Progress dialog box
We often have this experience: when running an application. You need to wait a while, and a progress (Please wait) dialog box is displayed to let the user know that the operation is in progress.
We continue to add code to the program in the previous article ~
1, add a button in the Activity_main.xml file of the previous article, add the following code for example:
2. Add a OnClick2 () method to the Ma
1, first, the Android file download requires the following permissions:2, because the file download is a long time task, can not be updated in the UI thread, need to open up a new thread to download the work, here we use the Android encapsulated asynchronous task Class--asyn
Transferred from: http://blog.sina.com.cn/s/blog_72f6e45701014l6t.htmlSometimes apps need to run automatically when they're powered on, such as a back-office service that automatically updates content from the Web. How to realize the application of automatic running on the boot? At the time of writing, Lenovo to Mr. Gao to "Don t call me, I'll call you back!" Summarizing the Android framework, it's really a
of log whether we write or the system can be monitored to hear wow ka ~ ~
Finally use toast to show the content.
@Override public
Void Run () {
Process mlogcatproc = null;
BufferedReader reader = null;
try {
//Get Logcat log information
Mlogcatproc = Runtime.getruntime (). EXEC (new string[] {"Logcat", "Mytest:i *:s"});
reader = new BufferedReader (New InputStreamReader (Mlogcatproc.getinputstream ()));
String Line;
while (line = R
1. After the installation is complete, the card dies.Just opened studio on the Gradle building interface no longer moving (to connect to the wall of the network download), then we need to screen this internet download operation, find the studio installation directory, Locate the Idea.properties file, open it, add the following line to the configuration, the role of the initial opening to not let it connect
, I'm going to write the URL and file name to death, but these can be obtained by httpheader to String DownloadURL = "http://gdown.baidu.com/data/wisegame/
91319A5A1DFAE322/BAIDU_16785426.APK ";
String fileName = "baidu_16785426.apk";
int threadnum = 5;
String filepath = path + fileName;
LOG.D (TAG, "Download file path:" + filepath);
Downloadtask task = new Downloadtask (DownloadURL, Threadnum, filepath);
Task.start (); /** * Multithreaded File
Android System SMS Source Library Click to open the linkAndroid System SMS Source Click to open the linkThe new project needs to do the SMS module function, this SMS module non-android system SMS module, is the use of 360 Zhang Yong-led open-source framework for URL interception, stripped out of the SMS moduleThe first step:To download the
notification, we first define an empty updatehandler.[/code]Private Handler Updatehandler = new Handler () {@Overridepublic void Handlemessage (msg) {
}};[/code]To create a true implementation of the Updaterunnable class:
Copy Code code as follows:
Class Updaterunnable implements Runnable {
Message message = Updatehandler.obtainmessage ();
public void Run () {
Message.what = Download_complete;
try{
Add Permissions if (!updatedir.exis
Android 5.0 kernel and source code learning (2)-source code download and system startup process analysis, android5.0
I,AndroidSource code download
The last time I briefly introduced the hierarchical structure of the Android system, I started to figure it out-download the sou
ProjectAs for the installation there is nothing to say, click to run directly. Here I use the 1.0RC version of the Mac system as an example to create the first HelloWorld project. Other platforms are pretty much the same, assuming you've already configured the JDK and Android SDK environment, and you're installing studio for the first time.
1, first run
already registered as an apple developer, you will have to create an Apple id in order to download.2. Install macports from http://www.macports.org /.3. Make sure that/opt/local/bin appears in your path before/usr/bin. If not, addExport Path =/opt/local/bin: $ pathTo your ~ /. Bash_profile.4. Get make, git, and GPG packages from Port:$ Posixly_correct = 1 sudo port install gmake libsdl Git-core GnuPGIf using Mac OS 10.4, also install bison:$ Posixly_
As mentioned in the previous article, the latest Android source code downloaded from the source code tree does not contain kernel code, that is, the android source code project does not contain Linux kernel code by default, instead, use the pre-compiled kernel, that is, the prebuilt/Android-arm/kernel-qemu file. So how can we DIY our own kernel? This article is o
Android/java http multi-thread breakpoint download (with source code)
First look at the project structure:
The multi‑thread http breakpoint download involves several modules, such as databases, multithreading, and http requests. It is not difficult to find out many things. Next, I will share my practices with you.
I. first look at MainActivity. java
Member varia
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.