Don't say much nonsense.Preparatory work:1. Download Source: http://opencv.org/Build platform: ubuntu14.04OpenCV 2.4.6.1I use this method to compile the Opecv 2.4.9 no problem, the problem is less than opencv2.4.6.1, in fact, their principle is the
Do the game introduction in the text loading has been implemented with TextView, but to see the content of NetEase news, click on the picture can be transferred to a new activity, feel like TextView realized, but do not know how to get, Think of the
1. Block ConceptBlock is an extension of the C language introduced by ios4.0+ and Mac OsX 10.6 to implement the features of anonymous functions. The so-called anonymous function, also called the closure function, allows you to create a temporary
1. Simple example
(1). Define a Attrs.xml file under the Res/values file
(2). layout file Use
(3). Custom Control Settings
public class Mytextview extends TextView {public Mytextview (context context) {
1. Re-installation failed due to different application signatures.Remove the original package and install it again. Run on the command line: adb uninstall the package_name here is androidmanifest.xml inside The data value of the element package
This article uses a demo to demonstrate the use of Expandablelistview controls in Android, such as how to bind a data source in a group/child ListView. Directly on the code such as the following:Program Structure diagram:The Main.xml file source
The above problem has just been solved, and then a question ~ ~ ~Error message string: Java.lang.RuntimeException:Unable to start Activity componentinfo{...}: java.lang.NullPointerExceptionThere are many solutions on the InternetGenerally in the
In the OnCreate () method of the main activity, by Findviewbyid the defined components in the Activiity_main, such as button, EditText, etc., note the need to force a transition view to a specific type.Adds a listener such as Onclicklistener () to
Sharedpreferences is the most understandable data storage technology in Android, and in fact sharedpreferences is dealing with a key-value (key-value pair) Sharedpreferences used to store some lightweight dataInstantiating a Sharedpreferences object
In order to prevent users or test mm crazy click on a button, write a method to prevent the button continuous click. Public classUtils {Private Static LongLastclicktime; Public synchronized Static BooleanIsfastclick () {LongTime
nested in ScrollView using the ListView, it appears that the ListView will only display a little more than one line and cannot slide. How to change the height of the ListView is problematic and does not conform to expectations. Search for some
Judging the situation of the network, there is a more troublesome situation is connected to a network, but that network can not access the internet,, = =Think of the ping command to judge, tested, feasible ~ ~ ~Private Staticfinal Boolean ping ()
calling iOS functions and arguments from asExtcontex is an instance of Extensioncontext, called by call. The first parameter is the corresponding function of iOS, after which all the parameters become an array of incoming iOS. This means that the
Original address: http://blog.csdn.net/u012085988/article/details/173931111, JDK I installed the version of the Win32 (although the system is 64-bit. But heard that the 64-bit export will be an error). This is very important, I was in the wrong JDK,
Hide title bar (Window properties):1. Set whether the control box is displayed in the title bar of the form:This. ControlBox = false;2. Set the title of the form to null:This. Text = string. Empty;3. Mobile window: The function of realizing form
DescriptionSince he has always been more interested in the management of mobile phones, plus the recent boss of the driver, so decided to research and organize the root-related technology (not limited to root). Phone Root is a brainiac, root tricks
Eclipse has a lot of interface components, file list, editing area, class structure and so on, in so many interface components, and then open a logcat there is basically no space. It is better to separate into two windows than to squeeze them
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