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Android Network Programming: HttpClient for Get-based communication, androidhttpclientIn Android development, the Android SDK comes with Apache HttpClient, which is a complete client. It provides comprehensive support for the HTTP protocol. You can use HttpClient objects to execute http
Recently in the exploration of Android source code and ROM, was fortunate to buy a book with online to see some of the tutorial, first do some notes, in case of a rainy days ...1. Learn about Git and repo2. Environment configurationThe first is definitely the JDK and SDK installation, online tutorials A lot, you can also refer to Google's official offer: https://source.android.com/source/initializing.html(a) Installing Git and curl:Apt-
Android phones get signal strength informationThis document describes how to use the Android system to get mobile phone signal strength and other information
Android phones get signal strength information
This article describes how Android uses Getidentifier () to get a resource ID. Share to everyone for your reference, specific as follows:
int i= getresources (). Getidentifier ("icon", "drawable", Getpackagename ());
if (i>0)
{log.i ("AA", "AA");}
else
{log.i ("VBV", "AA");}
Or:
int resid = Getresources (). Getidentifier ("Org.loveandroid.androidtest:drawable/gallery_photo_1", null,nul
Android development record 20-Get cache size and clear cache function, android20-Android development record 20-Get cache size and clear cache Function
Reprinted Please note: IT_xiao Little Wu blog address: http://blog.csdn.net/wwj_748
Preface
This blog will share with you how to obtain the application cache size an
Below I from the perspective of Android development, simply write how to get mobile device information and mobile phone numberPreparation conditions: An Android phone, mobile SIM card to ensure plug-in phone, Eclipse ADT and ANDROID-SDK development environmentFirst step: Create a new
Go from original Android studio to get the most detailed method for developing the SHA1 value and release SHA1 value of the versionObjective:Today I want to integrate the positioning of Baidu map into the project, want to write a small case, to achieve, but in the integration of Baidu map first to apply for the secret key, the application of the secret key to use the SHA1 value, so today to summarize how to
The examples in this article describe how Android simply acquires latitude and longitude. Share to everyone for your reference, specific as follows:
public void Getloc () {//position Locationmanager Locationmanager;
Locationlistener Locationlistener;
Location Location;
String contextservice = Context.location_service;
String provider;
Double lat;
Double lon;
Locationmanager = (Locationmanager) getsystemservice
1. httpclient the description of httpclient is used to simulate HTTP requests. In fact, the essence is to simulate HTTP requests and send them to the Web server;
Android has integrated httpclient, so it can be used directly;
Note: The httpclient Code is applicable not only to Android, but also to General Java programs;
Core http get code:
(1) defaulthttpclient
The Android system is a Linux system, and we can use the Linux command Mouunt to get a Linux mount directory. The directory that the obtains from the command I did not traverse, and if you still cannot get it, you can iterate through all the directories that the mount has been to.
filesdcard; @SuppressLint ("Sdcardpath") publicfilegetsdcardfile () { if (sdc
This article illustrates how Android uses the sensor sensor to get the direction of a user's movement. Share to everyone for your reference, specific as follows:
Today continue to share a second important sensor, in fact, to get the direction of the things should be very simple, in the previous article to see that there is a type_orientation keyword, you can dir
Android 4.0 ~ Otherwise it will be reported:android.os.NetworkOnMainThreadExceptionWhat is Asynctask (forgive the baby to steal the picture hehe but really explain it very clearly)Attention:The instance of the task must be created in the UI threadThe Execute method is created in the UI threadAn exception occurs when a task can be executed more than once in a single callGeneral purpose Asynctask and the use of network requests for return data in the m
How to modify the system time in Android (application obtains system privileges)The Systemclock.setcurrenttimemillis () function is available in the Android API to modify the system time, but no matter how you call this function is useless, regardless of the emulator or the real machine, in Logcat always get "unable to Open alarm driver:permission denied ". This
scaleddensity in Displaymetrics Class) A */ Public Static int sp2px (float spvalue, float fontscale) {[] (int) (Spvalue * Fontscale + 0.5f); /+ } $}
But why do we have to add 0.5f at the end?According to normal reasoning should be dip = pxvalue/scale and px = dipvalue * scale,In fact, the exact value should be our reasoning, the reason behind the addition of 0.5f is because we want is not so accurate, according to the reasoning is a floating point, and we generally use int type is e
Android provides DISPLAYMETIRCS class for easy access to resolution. The Displaymetics class is described below:The Displaymetrics class under the Andorid.util package provides a general information about the display, such as display size, resolution, and font.To get the Displaymetrics member, first initialize an object as follows:Displaymetrics metrics = new Displaymetrics ();Getwindowmanager (). Getdefaul
Get Network Connection StatusWith the promotion of 3G and WiFi, more and more Android applications need to call network resources and detect the network connection status becomes the necessary function of network application.The Android platform provides the Connectivitymanager class for detection of network connection status.The
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