how to transfer messages from android to android via bluetooth

. Put the content "troops on the island " into an envelope.(Envelopes are bundles). Notice that this is Chitian, of course, to make a mark or something to tag, that is, add tag, here we specify is "179521".Finally tied to the dove to send out (commit ()).The above analogy is not very appropriate, now in formal language to illustrate the HA:If you are familiar with the life cycle of activity, you should know that each application has a unique task,task with a fallback stack backstack, which store

In Android, activity is an interface that requires intent (intent) for message delivery when it is necessary to switch between interfaces. Use the startactivity (Intent) function to start another activity.Bundle is a Key-value class that can carry information with him.The bundle.putstring ("Key", "String") method and the Bundle.getstring ("key") method are put in and out of the information.The information can be put into intent, using the method Inten

suitable for its own business and improve its production efficiency; or even, you can also integrate this communication software in online games so that you can not only chat while playing, but also develop IM applications suitable for the game itself, such as some key game scenario reminder functions, team speech communication can be implemented based on IM. This article mainly explains how to use XMPP protocol for instant communication in Android.

Can be used in the Android environment, in the Java environment can also be used, I first in the Java environment to achieve the function, and then transplanted to the Android phone, the others are the same.[Java]View Plaincopy Package Com.photo; Import Java.io.File; Import Java.io.FileInputStream; Import java.io.FileNotFoundException; Import java.io.IOException; Import Java.io.InputStream;

The first thing to introduce is our default layout.　　　　LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Android:layout_width= "Fill_parent"Android:layout_height= "Fill_parent"android:orientation= "Horizontal" > FragmentAndroid:id= "@+id/fragment1"Android:name= "Com.example.chuang.frgone"Android:layout_width= "0DP"Android:layout_weight= "1"Android:layout_height= "Match_parent" /> FragmentAndroid:id= "@+id/fragment2"Android:n

Landing pageDeclare the intent object and start the Loginactivity ActivityIntent Intent = new Intent ();Intent.setclass (Loginactivity.this, Mainactivity.class);String Strusername=m_txtusername.gettext (). toString ();Intent.putextra ("UserName", strusername);//Transfer to main interfaceStartActivity (Intent);Deleting the current activity from the history stack will not return to the activity when the user taps the "back" button.Finish ();Main interfa

1. Data transfer of Interface jump(1) intent.setdata ()---Intent.getdata ();The data passed is relatively simple, usually a literal type of data string; If we pass on data that is more complex (several types), or longer, this method is less practical. (2) If there are a lot of different types of data passingIntent.putextra (key, value);• Basic types of data can be passed, and arrays of basic type data can be passed• The object must be an object that i

(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")) {sextext= "Male";}else{sextext= "female";}Getweight ();}private void Getweight () {if (Sex.equ

Patient= Getintent (). Getparcelableextra ("Patient1"); Sb.append (Patient.tostring ()); Sb.append ("\n\nparcelable Patient byte[]\n"); byte[] data = Getintent (). Getbytearrayextra ("Patient2"); if(Data! =NULL) {Parcelinch=Parcel.obtain (); inch. Unmarshall (Data,0, data.length); inch. Setdataposition (0); Patient= Patient.CREATOR.createFromParcel (inch); } sb.append (Patient.tostring ()); Sb.append ("\n\nstring array \ n"); string[] Str= Getintent (). Getstringarrayextra ("Patients"); for(

In the project, the inevitable to two pages between the data transfer, even if not delivery, but also need to be refreshed and so on, we are based on the Library class method provided by Google, but also can do, mainly broadcast broadcastreceiver, StartActivity methods or application instances and so on, are all working (as long as the implementation is good, after all, the function implementation takes precedence over the code structure?). ）。But at t

attack the island. Good. Put the content " troops on the island " into an envelope. (envelope is Bundle ). Notice that this is Chitian, of course, to make a mark or something to tag, is to add Tag Here we specify is" 179521 ". finally tied to the dove to send out ( commit () ). The above analogy is not very appropriate, now in formal language to illustrate the HA: If you're familiar with activity tas k , task There's a fallback stack backstack , storage activity b

The dispatchTouchEvent method of the currently top-level viewGroup starts to pass the user's touch screen behind the scenes. Then the onInterceptTouchEvent method is triggered. Then the OnTouch event is triggered. The process is as follows: First, trigger the dispatchTouchEvent of the ACTIVITY. Then, the onUserInteraction of the ACTIVITY is triggered. Then, the dispatchTouchEvent of LAYOUT is triggered. Then, the onInterceptTouchEvent of LAYOUT is triggered. In

Now smartphones (the mobile phones in the broad sense, including mobile devices such as mobile phones, tablets, etc.) are becoming more and more important in life, people use mobile phones much more than computers, because of the portability of mobile phones, so many times we will need to use mobile phone to carry data or files, or for entertainment. For example, when riding a train or a car, to see a movie with a mobile phone is quite good, now the phone screen is large enough, storage space is

I. Public Intent PutExtra (String name, double[] value)Set Method Intent.putextra ("AAA", "bbbb");Get Method This.getintent (). Getcharsequenceextra ("AAA")Ii. public Intent Putextras (Bundle extras)Setup MethodBUNDLE BD = new bundle ();bd.putstring ("AAA", "bbbb");Intent.putextras (BD);Get MethodBundle bd=this.getintent (). Getextras ();bd.getstring ("AAA")); Iii. SummaryThe band S has to bind the data through a bundle.---Putextra and Putextras of Android