Mobile Develop

In the development process, often to use exception handling, to prevent the sudden collapse of the program, in the java,c++ throw exception, and assertion processing, then in OC is how to deal with the exception?1. NsassertSee how iOS is defined#if !

Package Structure:Org.achartengine:Org.achartengine.model:Org.achartengine.renderer:Org.achartengine.tools:Android Graphics Engine Achartengine (i)-Introductionhttp://blog.csdn.net/lk_blog/article/details/7645509Android Graphics engine Achartengine (

First publish my test results, Android inside in addition to edittext to it after binding Onfocuschangelistener, will return true, the other components are not responding, unless you call Requestfocus, But even if you call the Requestfocus after,

In some cases, we need to determine whether the HTTP request is from the phone or the computer side, the key is to obtain user-agent information, screening and judgment can be.The core classes are as follows:public static Boolean IsMobileDevice

First, summarize1. Do a GT-like performance test tool;2. The first phase is mainly CPU, memory function, the requirement can draw the curve, can choose Curve interval, automatically calculate the minimum, maximum, mean, etc., support curve

Team members: Chen Shuyun, Yang Jiane, Chen XiTeam selection: Primary arithmetic AppFirst Sprint stage time: 11.17~11.27This release is the success of implementing the exercise functionCode:public class Calculatoractivity extends Activity {private

Just started to try the Water Android Studio tool for Android development exploration, today mainly explains the use of Android Studio Tools, the new Android project will bring your ownThis part of the content, later found to be unit testing, so I

Recently, using the Cllocationmanager location service in ios8.0, I found that the old can't be located, and the items in the Settings menu are also in an unknown state. Remember that there was a popup box prompting the user whether to allow

Many Android applications exit the program with two consecutive clicks of the return key, with the following code:Private LongExittime = 0; @Override Public BooleanOnKeyDown (intKeyCode, KeyEvent event) { if(KeyCode = = Keyevent.keycode_back &&

http://arstechnica.com/information-technology/2015/11/ visual-studio-now-supports-debugging-linux-apps-code-editor-now-open-source/------------------------Developers can now debug apps running on Linux servers or IoT devices from the comfort of

Source:http://www.aichengxu.com/view/37145In the iOS platform using ffmpeg decoding H264 video stream, there is a need for friends to refer to below.For mainstream video transmission protocols such as video files and RTSP, FFmpeg provides a avformat_

The Android:gravity and Android:layout_gravity properties may often be used for UI layouts.On the difference between the two properties, there are many people on the internet has been explained, this way to briefly say. (Information from the network)

Reproduced in: http://blog.csdn.net/byxdaz/article/details/9708491http://blog.csdn.net/q876266464/article/details/19641251The four basic components of Android are Activity,service services, content provider contents provider, broadcast receiver

Capture program crash log in IOS(2014-04-22 17:35:59)reproduced It is normal to encounter program crashes in iOS development, how to catch exception information when a program crashes and notify the developer,

Ideas:1. Compress picturesCompress local Pictures: get the ImageView you want to display, and set the appropriate insamplesize Compress Network pictures:A. HDD cache on/off direct download to SD card, then use local compression scheme B. hard disk

Privatestring Getrealpath (Uri fileUrl) {string FileName=NULL; Uri Filepathuri=FileUrl; if(FileUrl! =NULL ) { if(Fileurl.getscheme (). toString (). CompareTo ("content") = = 0)//content://URI starting with{cursor cursor= This.

Recently, due to the need to write the same LAN on the Android client and PC to automatically match the communication function of the program, learning and experimenting with the Java multicast and broadcast content, recorded some understanding as

The day before yesterday with Eclipse suddenly encountered this problem ... Restarted several times did not, Baidu a bit, the original before a lot of people have met. Later found an article in which method two (below):Method Two (after closing,

abstract : Alertdialog add edittext but do not eject soft keyboard and other issues on the internet there are many solutions,This article is intended to give a more effective solution, and to explore its causesBodyInserting a text box in a dialog

Also learn from others, interested can take a closer look at ha1. Managing Memory with ARCARC (Automatic referencecounting, Auto Reference Count) is released with iOS5, which avoids the most common memory leaks that are often caused by our