Mobile Develop

1.When to use Nsmutablearray and when to use Nsarray?When to use Nsmutablearray, when to use Nsarray?Answer: When the array is running in the program, it needs to be constantly changing, using Nsmutablearray, when the array is initialized, it will

Chinese document from W3cshool: http://www.w3cschool.cc/appml/appml-tutorial.htmlWhat we are going to do is a complete example, so download an instance from here http://www.w3cschool.cc/appml/appml-download.html, containing 3 compressed

Acitivity is an application component that responds to user interface, and is one of the four components of Android. Each activity is given a window to display the user interface, which is usually filled with the entire screen, or smaller than the

There is a getview () in the Baseadapter adapter that needs to be rewrittenPublic View getView (int position,view converview,viewgroup parent){ Omitted..}What does the three parameter of this method mean? What is the role? I don't want to be a

If you like my blog, please follow my Weibo, please click here (http://weibo.com/kifile), thank youReprint please indicate the source (http://blog.csdn.net/kifile), thanks againWith the release of Android 5.0 Lollipop, Android has provided us with

Memoryanalyzer-1.4.0.20140604-win32.win32.x86.zipHttp://www.eclipse.org/downloads/download.php?file=/mat/1.4/rcp/MemoryAnalyzer-1.4.0.20140604-win32.win32.x86.zipEclipse Memory Analyzer

============ Problem Description ============ public class mainactivity extends activity {private static final  string log_tag =  "Ip test";p rivate edittext chattxt;private textview  chattxt2;private button chatok; @Overridepublic  void oncreate

1.plist, full name propertylist, the attribute list file, which is a file used to store serialized objects. This kind of file is often used during iOS development. This property list file has a. plist extension, and is often called a plist file. The

============ Problem Description ============I downloaded the image from the server side with the following code and ran it in the new threadSystem.out.println ("Before BM =" + BM); String IMAGEURL1 = "http://10.0.2.2:8080/BBStuServlet/test01_upload_

Preference Settings StoreNsuserdefaults and the Settingbundle nsuserdefaults that it controls are used to save some settings that he will automatically write to when.Nsubiquitouskeyvaluestore Multi-platform sync settings, limit size 64k, turn on

============ Problem Description ============On the server side, the query results are placed in the list by the following code, and the result is that there is no first row. Obviously with Beforefirst () moved to the first line, but still no effect.

To implement the top-level window pop-up in Android, it is usually implemented with Windowsmanager, but almost all of the site resources are said to pop up the hover window without accepting any key response.The problem is that we sometimes need him

Afnetworking is a popular third-party network access Library on iOS, and we can download it on GitHub, with its detailed instructions on GitHub, and the latest AFNetworing2.0 and 1.0, which are only a summary of the 2.0 commonly used

Inflater English means expansion, in Android should be extended meaning it.The Layoutinflater function is similar to Findviewbyid (), and the difference is that Layoutinflater is used to find the XML layout file under the Layout folder and

A different state is always indicated when the user is doing the action, such as when we press the button, the cursor moves to the button and the current state does not show a different state when the button is not pressed. In the Android system

log is to facilitate the recording of various anomalies of the program, easy to repair the maintenance of the program later, a program can not be hundred-percent robust and perfect, so it is necessary to save the log in the code, easy to maintain.

Here's a case:A click to jump to the B interface, click on the end of the B interface, back to the A interface1, at this time in the B interface, set the Click event, click to end BV.setonclicklistener (New Onclicklistener () {@Overridepublic void

Reference: In Eclipse, press the CTRL key and the mouse points to the R.LAYOUT.ORDER_EDIT1 code when it is displayed (general) Open Declaration Open declaration in Layout/somelayoutfile.xml So the R.java is turned on by default

First, the sensor application android4.0 aboveThis error java.lang.RuntimeException:Unable to start activity componentinfo{com.sensorget/com.sensorget.mainactivity}: Java.lang.NullPointerExceptionCried, seemingly android4.0 above the main thread can

Today, lucky to go to the big company to do a half-day temporary workers, an occasional bug toss him for a long time, finally caught the abnormal log log, the general meaning is android.view.windowleaked--form leakage. I checked the information on