how to transfer apps data from android to android

(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

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

According to the report, the overall risk level of iOS apps is higher than that of Android apps. Market research company Appthority's latest report shows that the overall risk level of iOS applications is higher than that of Android applications. Among the top 100 apps on t

time and then delete one of the two.This is all done at the same time. Use the Add (), remove (), replace () method, add all the required changes, and then call the commit () method to apply the changes.Before the commit () method, you can call Addtobackstack () and add the transaction to the Backstack, which is the back stack by the activityManaged, when the user presses the return key, it returns to the state of the previous fragment.Receive data a

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 pre

/details/79126652. http://blog.csdn.net/conowen/article/details/7294230Iv. Update of data /** Update Operation*/Update.setonclicklistener (NewView.onclicklistener () {@Override Public voidOnClick (View arg0) {String updatename=Name.gettext (). toString (). Trim (); String Updatescore=Score.gettext (). toString (). Trim (); String SQL= "UPDATE student SET name=?,score=?" Whrer id=? "; if(Index! =NULL){ Try{toast.maketext (mainactivity)

= (*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

Market research company Appthority's latest report shows that the overall risk level of iOS applications is higher than that of Android applications. Among the top 100 apps on the iOS platform, more than 91% of apps have security vulnerabilities, or may cause user data to be leaked; of the top 100

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

There are two ways to pass data between Fragment and activity, one is to use setargument and one is to use an interface callback. Learn the first method below.( 1 ) using setargument Method:for the sake of understanding, I am here to make a metaphor: if Act ivity is the emperor, it set up three departments (such as the three provinces six), respectively, is Fragment1,fragment2 and the Fragemnt3 ;now he's going to command the department . Fra Gment1 to

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

Mobile apps can be used as a tool for desktop apps to receive status information for desktop apps. Here's how to implement a simple Android program to receive the working status of a Windows scanner app. Reference: How to Push notifications to Android applications from Windo

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

How to pass data between Android two fragment Fragmenta start FRAGMENTB, do some select operation, return to Fragmenta, need to FRAGMENTB inside the selection of the data sent back. What's the solution? Fragment can not communicate directly between the two, must be done through the activity, the specific steps. 1. Define a communication interface in Fragmenta

1. Introduce For beginners The data transmission between different activity of Android is always a difficult problem, the main solution is to use bundle to transmit data, one is to use sharedpreferences. The difference between the two, generally speaking, sharedpreferences is used to store lightweight data, stored in

firstThe activity's OnPause () method does not call the OnStop () method, because the first activity is still visible. If you turn offClosed transparent activity, the first activity will only callback the Onresume () method.3 . Inventory Configuration for Activity If you want activity to be the portal for your application, you need to configure the activity's intent filter as follows:Android allows the program to have multiple activity as the portal of the application, as long as the activity i

= 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

I. Basic points of knowledge1. Transfer data between activity1) Pass basic type or stringIntent.putextra ("username", username);Getintent ();Intent.getstringextra ("username");2) transmission in the form of bundlesBundle bundle = new bundle (); Bundle.putstring ("username", username);Bundle.putstring ("password", password);Intent.putextras (bundle);Bundle bundle = Intent.getextras ();String username = bundl

Android apps 02-Android IM: a similar mobile QQ Instant Messaging Open Source implementation, android02-androidAndroid apps 02-Android IM: an open-source instant messaging implementation similar to mobile QQ This is a simple IM application running on