android data transfer program

Android terminal and server data transfer solutionsAndroid Terminal three types and server transmission mode: Socket Transmission WebService Transmission Post/get how to get Data Network implementation conditions Port: SpecifyProtocol: TCP,UDP Port: SpecifyProtocol:

Data transfer between Acticity in AndroidDuring Android development, it is very common to transmit data between different acitifiers. I spent a little time summarizing and recording the data transfer between Acitivity. 1. simple

(r.layout.new_layout);InitData ();Set the data returned to the previous pageSetbackdata ();}private void InitData () {textview= (TextView) Findviewbyid (R.id.text);button= (Button) Findviewbyid (R.id.button1);Get the data transferred from the last page put in intent.Intent=this.getintent ();Bundle=intent.getextras ();Sex=bundle.getstring ("Sex");Height=bundle.getdouble ("height");if (Sex.equals ("M")) {sex

In the previous chapter we review the creation of activity and the life cycle, which we mainly learn about activity jumps and data transfer between activity.First, activity jumps:The simple jump between activity is simply a matter of creating two activity and then using startactivity (intent) to jump and see the code:Intent uio=New Intent (thisactivityclass,activitybclass); startactivity (UiO);What is inte

1. Global objects are a more practical way to transmit data between activities. For example, there are four scopes in Java Web. The Four Scopes are Page, Request, Session, and Application, the Application domain can be used and accessed anywhere in the Application, unless the Web server stops. The Global Object in Android is very similar to the Application field in Java Web. As long as the

= trustmanagerfactory.getinstance ("X509"); - theTmf.init ((KeyStore)NULL); * $ for(TrustManager trustManager:tmf.getTrustManagers ()) {Panax Notoginseng - ((X509trustmanager) trustmanager). checkservertrusted (chain, authtype); the + } A the}Catch(Exception e) { + - Throw Newcertificateexception (e); $ $ } - - //Hack Ahead:biginteger and ToString (). We k

In the Android development process, it is very common to pass data between different acitivity. I spent a little time summarizing the data transfer between acitivity and documenting it.1. Simple transfer of key value pairsThis method of delivery is very simple, just need to

method in native to handle business logic in Android, and it's not recommended to handle Android business logic in this way, but also know how to use it). Privatewebviewmwebview;publicstaticfinalstringurl_test= "File:///android_ Asset/index.html "; @SuppressLint (" Javascriptinterface ") @Overrideprotected voidoncreate (bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (R.layo

Original: http://blog.csdn.net/xueerfei008/article/details/23046341The project needs to use in the 2 activities between the data transfer, before doing are some strings and other things, the results of this card for a long time, tossing an afternoon.First: Pass bitmapThis problem is very wonderful (probably my Android level is not enough), incredibly do not error

=NewBigInteger (1/*Positive*/, pubkey.getencoded ()). ToString (16);55 56//Pin It!57 58Final Booleanexpected =pub_key.equalsignorecase (encoded);59 60if(!expected) {61 62Throw NewCertificateexception ("checkservertrusted:expected public key:" + Pub_key + ", got public key:" +encoded);63 64 }65 66 }67 68}2 Certificate Locking: The issuing of public key certificates for the client is stored in the mobile client (using KeyStore), when HTTPS communication, in the client code to secure t

(HttpPost); if (Response.getstatusline (). Getstatuscode ()! = 404) { result = Entityutils.tobytearray (response.getentity ()); } } catch (Exception e) { LOG.E ("Httputils", "Connection server error"); E.printstacktrace (); } At this point, the binary data is requested to the network and responds to the binary data stream(5) The remaining steps will be obtained by using the Msgpack-unpa

In Android, data transmission between images is mainly implemented through the putextra method of intent. The transmitted data structure is a map data (name/value pair, note that the difference is that the basic data type must be used. The following describes the implementat

Years ago, I studied how Android can implement the Wireless Data Transfer Function and wrote a demo. I have nothing to do with it recently. I want to sort it out and share it with you. Early research found that Android has the following technologies to achieve wireless data

I've written a similar tool for the Android system's cropped image. The feature was largely implemented, but left a call question: How do I invoke the cropping tool from my program and get the cropped picture? In fact, this is also very simple, is the basic use of intent. First image (the interface is still not optimized, unsightly ugly bar): Start activity, open Picture Selection window, choose a pictur

, usbserialport.parity_none);7 8 byteBuffer[] =New byte[16];9 intNumbytesread = port.read (buffer, 1000);TenLOG.D (TAG, "Read" + Numbytesread + "bytes.")); One}Catch(IOException e) { A //Deal with error. -}finally { - port.close (); the}Of course, we can add a monitor to the serial port.11Private FinalExecutorservice Mexecutor =executors.newsinglethreadexecutor ();22PrivateSerialinputoutputmanager Mserialiomanager;3344Private FinalSerialinputoutputmanager.listener Mlistener =55NewSerialinp

Android development, in different modules (such as activity) will often have a variety of data need to communicate with each other, commonly used in five ways of delivery. They have their own pros and cons and have their own application scenarios. Here are a few separate sections:1. Intent object passing simple dataThe extra portion of the intent can store the data