transfer data from iphone to android phone

In development, we often use the activity, then since the use of activity, it is inevitable to pass data between the two activity. Here we first talk about the principle, look at the code and examples.Situation A: We need to start and pass data from Activity_1 to activity_2,activity_2 only to receive data from Activity_1, but not for other operations.Case B: We n

; @Overrideprotected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (r.layout.activity_regist); Initviews ();} private void Initviews () {et_uname = (EditText) Findviewbyid (r.id.et_uname); et_upass = (EditText) Findviewbyid (r.id.et_ UPass);} public void regist (view view) {String uname = Et_uname.gettext (). toString (). Trim (); String UPass = Et_upass.gettext (). toString (). Trim (); if (Textutils.isempty (uname) | | Textutils.isempty (UPass))

= (*env)->newbytearray (Env,len); (*env)->setbytearrayregion (env, ByteArray, 0, len, buffer); CLS = (*env)->getobjectclass (env, retobj); FID = (* ENV)->getfieldid (env, CLS, "Retbytes", "[B"]); (*env)->setobjectField (env, retobj, FID, ByteArray); 4. How to return a string in C to java Char charstr[50]; Jstring jstr;jstr = env-Newstringutf (CHARSTR);5. How much space does not know how to use buffer, how to pass out? In the JNI C file, new out of space, passed out. Java

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 development can not be without the real machine debugging, the total use of data line Plug and unplug or not convenient and unstable, in fact, the way to achieve WiFi connection to the Android phone. 1. Of course first to open WiFi, mobile phones and computers in the same LAN. 2. Install adbwireless on the

The first is the call service for the system clipboard:Clipboardmanager Clipboardmanager=getsystemservice (Context.clipboard_service);Then it is written, taken out.It is important to note that before Android version 11, the use of the Clipboard to pass data using the SetText and GetText methods, but after version 11, the two GetText and set methods are discarded, instead of the need to use the Clipdata obje

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

Set values by Putextra, get values by GetextraPutextra need to set the key-value pair, Getextra by the corresponding key to get the passed value (directly between the Getextra plus the value type you want to get)1. Open another activity in one activity through Startactivityforresult ()2. This method usually receives two parameters, the first one is the intent object, the second is the Requestcode3. In the first activity, rewrite the Onactivityresult method, by switch to determine the transmitted

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

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

Method One, use 360 handset assistant to carry on the backup with the computer 1. First the computer online and then install 360 mobile phone Assistant in the computer, then the phone to be backed up using the data cable to connect the phone, and then click on the bottom right of the "

= Data.getstringextra ("Third"); LOG.D ("Firstactivity", data3); } Break; default: } }The above is the three cases of their own judgment, in fact, if only two activity, then only need a case to be able. It can be seen that in order to return the data successfully, it is necessary to match in case, then ResultCode also need to match successfully.It can be understood that: a letter sent and received, need the address on the env

=Dao.findbyusername (username); if(Result) {Toast.maketext ( This, "User has been registered", Toast.length_short). Show (); return; } dao.modify (Id,username,password); Toast.maketext ( This, "Modified successfully", Toast.length_short). Show (); Intent Intent=NewIntent (); Intent.setclass ( This, Home.class); StartActivity (Intent); Break; Caser.id.btn_home:intent tointent=NewIntent (); Tointent.setclass ( This, Home.class); StartActivity (tointe

Mainactivity as follows:Package Com.example.helloworld;import Android.app.activity;import Android.content.intent;import android.os.Bundle; Import Android.view.view;import Android.view.view.onclicklistener;import Android.widget.button;public class Mainactivity extends Activity {private Button main_button1 = null; @Overrideprotected void OnCreate (Bundle Savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (r.layout.activity_main);// Initializes the control in the layout file t

　　Activity transmits data to the broadcast receiver simply by put the data into the intent before sending the broadcast.How does a broadcast receiver transmit data to the activity? The interface is used here, by defining an interface in the broadcast receiver, and then the activity that receives the broadcast receiver data