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Android learning notes (4) Intent basic learning, androidintentCorresponding to video tutorial Lesson 7thThis course explains intent, which is an abstract description of the action and indicates the intent. Once an intent is created, an action can be executed for it. inten is the essence of android development.1. click the button to call a specified number.
Btn1.
Android IPC Mechanism (4) use ContentProvider for inter-process communication
ContentProvider provides a unified interface for data storage and retrieval. It can share data between different applications and is suitable for inter-process communication. The underlying implementation of ContentProvider is also a Binder, but it is much easier to use than AIDL. The system also made a lot of contentproviders, su
Android scroroller (4)-implement the layout of rebound after pulling, androidscroroller
MainActivity is as follows:
Package cc. testscroller2; import android. OS. bundle; import android. app. activity;/*** Demo Description: * The layout that can be pulled and then rebounded. * similar to the pull-down refresh. ** refe
. editText; public class MainActivity extends Activity {// defines the variable private Button btnDail; private EditText phoneNumber; @ Override protected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); setContentView (R. layout. activity_main); // use findViewById to obtain the buttons and text box objects and forcibly convert them to btnDail = (Button) findViewById (R. id. btn_dail); // Add the listener event btnDail for the button. setOnClickListener (new MyLi
[Android Development] example 4-guess the box in which the gem is stored, android4-A mini game that implements "Guess which box the gem is placed in": There are three boxes in the main interface. clicking any box will open the box and show whether there are any gems in it, in addition, the box that has not been clicked is set to semi-transparent. The box that has been clicked is displayed normally, and the
Register button on the page Btnregister.setonclicklistener (new Onclicklistener ()//BIND register button click event {@Overridepublic void OnClick (View arg0) {//button jump Intent Intent = new Intent (mainactivity.this,register.class); StartActivity (intent);}});} @Overridepublic boolean Oncreateoptionsmenu (Menu menu) {//Inflate the menu; This adds items to the action bar if it is PR Esent.getmenuinflater (). Inflate (R.menu.main, menu); return true;}}Note: Each time you add a
Before using some network to find the class for network access, and later found that the Android development has a Chinese class library xutils more comprehensive, but also more classic, so the subsequent use of Xutils class library to record.In this case, WCF is used by the server to write the WCF service side in: http://www.cnblogs.com/madyina/p/3454741.html Download deploymentThe service description is a
Appium is a good east, Android,ios support, and incredibly robotframework also support Appium, this is the appiumlibrary of this article to introduce.Using the previous article appium+robotframework to implement automated test -1:appium for mobile applications, you know that you can write Appium test scripts in multiple languages, but if you are writing efficiency and learning curves, Of course it's the simplest way to use keywords like robotframework
' s Runonuithread () method, a View component ' s post () method, and The Android Handler Framework to has the Non-ui thread send a user interface update request back to the UI thread for dis Play. Each of these past three options take advantage of the underlying UI event message channel to message the UI thread to per form the user interface update. In this post, I show you a different means of providing the communications via broadcast intent that'
, xmlserializer. startdocument ("UTF-8", null) to set XML attributes.
Then, use xmlserializer to create startdocument, starttag, text, endtag, and enddocument.
Code
/** Create XML in PULL mode */
Running result:
3. Pull Parse XML
In PULL mode, XML is parsed throughXmlpullparserClass implementation
First, the XML-parsed instance xpp is obtained through xmlpullparser.
Then, set the input xpp. setinput (is, "UTF-8") through xpp to declare the data structure (such as the person array) for sa
Android XMl parsing magic xstream 4: parse complex xml files into objects, androidxstream
For more information about xstream, see:
Android XMl parsing magic xstream 1: parse the aa. xml file in the asset folder of the android Project
Android XMl parsing magic xstream 2: Conv
Android from hardware to application: Step by Step 4-use the JNI method to tune the hardware driver
In Android, java applications call the hardware abstraction layer module through the JNI method, from hardware to application in Android: Step by Step 3 -- access the hardware driver in the Hardware Abstraction Layer
We
every Activity opened. When you need to exit, close every Activity.
3. Send a specific broadcast: Send a specific broadcast when you need to end the application. After each Activity receives the broadcast, close it.
4. recursively exit and use startActivityForResult when opening a new Activity. Then add the flag and process it in onActivityResult. recursively close the event.
Except for the first one, we try to end every Activity and achieve the goal
://play.google.com/store/apps/ Details?id=com.wt.calendarcardsample Androidwheel Android Wheel support City, multiple datetime, password, picture Project Address: Https://github.com/sephiroth74/AndroidWheelAndroid-async-httpAn asynchronous, callback-based HTTP client development package on Android, built on Apache's httpclient library.Https://github.com/loopj/an
Android system development (4) -- AutotoolsComposition of Autotools
1. autoscan
Autoscan is used to scan the source code directory to generate the configure. san file. configure. san contains the basic options for system configuration, which are macro definitions. We need to change its name to configure. in.
2. aclocal
Aclocal is a perl script program. Aclocal automatically generates the aclocal. m4 file ba
Android: Daily Learning Notes (7) ——— Explore UI Development (4) UI Overview View and ViewGrou theall user interface elements in Android apps are View built using and ViewGroup objects . Viewobject is used to draw content on the screen that the user can interact with. ViewGroupobjects are used to store other View (and ViewGroup ) objects to define the layout of t
To run Android, you must not only compile the kernel correctly, but also install the root file system correctly. The first step is to extract data from the data directory of the simulator. Maybe you will ask, why is it extracted from the simulator? This is the most convenient method. You do not need to create a directory or file on your own. Run the simulator on a terminal and the android system runs normal
can also use the withappendedid () method of the contenturis class to complete the operation.4. Use contentobserver to observe the data changes of contentprovider *****You can use the registercontentobserver () method of contentresolver to register a contentobserver on the specified Uri.The onchange () method of contentobserver is automatically executed when ontentprovider calls the contentresolver. policychange () method.Ii. Monitor text messages1.
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