android fragment tutorial

English Original: Probably is the best (?) to Save/restore Android Fragment ' sKey points: Fragment's arguments.After years of using fragment, I want to say that fragment is really a smart design, but there are too many problems to be solved by using fragment, especially whe

Functionmanager=functionmanager.getinstance (); Fragment.setmfunctionmanager (Functionmanager.addfunction (NewFunctionnoparamnotresult (A.INTERFCE) {@Override Public voidfunction () {Toast.maketext (mainactivity). This, "no parameter no return value" +Tag,toast.length_long). Show (); }}). addfunction (NewFunctionnoparamwithresult(B.INTERFCE) {@Override PublicString function () {Toast.maketext (mainactivity. This, "No parameter has a return value", Toast.length_long). Show (); return"Zhang San";

SummaryThis article describes how fragment can interoperate through activity when there are multiple fragment in an activity in Android.SourceSource code address is: http://download.csdn.net/detail/logicteamleader/8931199The source code is written using ADT and the ADT version is 2014,android version android-22.Technic

IntroductionIn Android app development: Fragment's non-disruptive save Setretaineinstance article has described how to get fragment to save data without destroying it with the activity. In the design of mobile application architecture, interface and data are inseparable and can not be confused. In most of the development experience, we are using fragment to inter

Android learning route (20) using Fragment to build a dynamic UI and androidfragment To create a dynamic or multi-panel user interface on the Android system, you need to encapsulate the UI components and activity behavior into modules, it allows you to flexibly switch between display and hide in your activity. You can useFragmentClass to create these modules. The

solution is actually some, once activity in the recovery display when there is a way to monitor the display is complete, the same for fragment also have a similar method can be monitored. For example, the following:@Override public void Onhiddenchanged (Boolean Hidd) {if (Hidd) {String instrname = ((mainactivity) getactivity () ). Getinstrname (); System.out.println ("+instrname+" ***************++++++++++++***** "for the name of the product to be ob

. second, The first step is to execute the onresultactivity () function in activity A, regardless of the getactivity () that you used in fragment B. onresultactivity (), or direct use of onresultactivity (). Span style= "font-family:monospace; font-size:14px; White-space:pre-wrap "> If you rewrite the Onactivityresult method of activity a This program only needs to modify my fragment D and jump

Android introduces fragment in android3.0, which is mainly used to support more dynamic and flexible UI design on large screens, such as tablets. Because the screen size of a tablet is larger than that of a handheld device, more space is available for combination and interchange of UI components. Fragment allows you to manage the design method of complex manageme

(intent); // Transaction Animationoverridependingtransition (R.anim.slide_in_bottom,r.anim.slide_out_bottom);Two of these animations: XML version= "1.0" encoding= "Utf-8" ?> xmlns:android= "http://schemas.android.com/apk/res/android"> android:fromydelta= "100%p" android:toydelta= "0" android:duration= "/> " android:fromalpha= "0.0" android:toalpha= "1.0" Android:duration= "$"/>set> XML version= "1.0" encoding= "Ut

The effect we want to achieve today is very common in Android applications. We can see the following two figures, whether it is the built-in Contact application of the system or the AnyView reader application, we can always find this shadow. When we slide the screen, the Tab can be switched accordingly, and when we click the Tab, our screen can also be switched. When it comes to slide, we will immediately think of PagerView and ActionBar, And we will

The approach is to fragment+fragmenttabhost components to achieve this common app home page effect First give the Main.xml file main code: public class Mainactivity {@ViewInject (Android). R.id.tabhost) Private Fragmenttabhost mtabhost; Private Layoutinflater Layoutinflater; private int mimageviewarray[] = {R.DRAWABLE.HOME_TAB1, r.drawable.home_tab2, R.DRAWABLE.HOME_TAB3, R.drawab

" -android:layout_height= "Match_parent" -android:layout_weight= "1"/> + -View CodeThe mainactivity code is as follows:1 PackageCom.example.fragmentdemo;2 3 Importandroid.app.Activity;4 ImportAndroid.os.Bundle;5 6 Public classMainactivityextendsActivity {7 8 @Override9 protected voidonCreate (Bundle savedinstancestate) {Ten Super. OnCreate (savedinstancestate); One Setcontentview (r.layout.activity_main); A } -}View CodeThen run the project to show

[Android] Fragment source code analysis (2) Status As mentioned above, the question is how to construct the View parameter in Fragment when the onCreateView of the Activity is called. To answer this question, we must first understand the Fragment status, which is a very important part of

Usually multi-pane design, such as fragment A is a headline,fragement B is detail, then B usually need to implement a Click event interface, this way, two fragment is high coupling, and need in fragmentA write a interface, if a lot of fragment, the situation is more complicated, the chaos. Here you can useEventbusThis framework, a typical publisher-subscriber pat

Explanation of Android Fragment (fragmentation ), Fragment literally refers to Fragment. Of course, Fragment aims to solve the serious fragmentation problem of various Android devices. For example, the same App shows good results

); 5: Submit Ft.commit (); } public void Green (View v) {///fragement02 interface displayed in layout file//1: First get fragement Fragement02 fragement02 = New Fragement02 (); 2: Get fragement manager Fragmentmanager Fmanager = Getfragmentmanager (); 3: Open things fragmenttransaction ft = fmanager.begintransaction (); 4: Display the content to the interface Ft.replace (R.ID.FL, fragement02); 5: Submit Ft.commit (); } public void Blue (VieW v) {//fragement03 i

Fragmentation (Fragment) is a UI fragment that can be embedded in an activity, which allows the program to make more reasonable and full use of the space on the large screen, so it is widely used on the tablet.Basic examples of FragmentFirst, increase the Fragment,another_right_fragment.xml file:LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/

Objective Previous articles have introduced Activitygroup, many people ask the problem of nested use, the same demand in fragment also exist, fortunately in the latest Android support package has supported this feature! Here we skip the introduction of fragment, and note that Tabactivity has been marked as deprecated (deprecated). Body First, prepare For an i

version will use the Android-support-v4.jar compatibility package, * and fragmentactivity is in this compatibility package, It provides some ways to manipulate fragment, which functions the same as 3.0 and later versions of activity. */ Public classMainactivityextendsFragmentactivityImplementsibtncalllistener{//RadioButton PrivateRadioButton radiobtn; PrivateIntent Intent; Privatebundle Bundle;

setHasOptionsMenu方法一般我们是在nCreate中调用 @Override Public void onCreate(Bundle savedinstancestate) { 　　Super. OnCreate(savedinstancestate); Mbucketid = getarguments(). GetInt(Images. Media. bucket_id); Mcallback = new modecallback(); Sethasoptionsmenu(true); } 三、如果Fragment和Activity都同时inflate了一个menu资源文件，那么menu资源所包含的菜单会出现两次为什么呢，因为inflater.inflate(R.menu.pictrue_list, menu)方法的作用其实就是将第一个参数中包括的菜单项追加到menu中。一开始，在acti