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The activity managed fragment needs to do the following two points:1. Arrange the position for the fragment view in the layout;2. Manage the life cycle of fragment instances.The life cycle of fragment: Reference:http://www.cnblogs.com/purediy/p/3276545.html Fragment
Fragment is an act or a part of the user interface in an activity. You can combine multiple fragment into a multiple-area UI on a single activity, and can be reused in multiple activity. You can think of fragment as a modular part of the activity, which has its own lifecycle, receives its own input events, and can be added or deleted as it runs. Two concepts:
Toolbar as an introduction to Actionbar useThis article describes how to use toolbar as a Actionbar in Android.It also describes things to be aware of when using toolbar as Actionbar in fragment and nested fragment.Using the Support Library's toolbarAndroid Actionbar Each version will make some changes, so the native actionbar may look different on various systems.Use the Support library version of toolbar to keep your app consistent across multiple d
It is said that the most recommended Android is the use of fragment in Viewpager, that is, Viewpager in the page is not like the previous use Layoutinflater directly from the layout file loading, but fragment. Pay attention to the fragment here. It's the fragment in the And
phase: This article will introduce the Fragment knowledge using an APP in the future. The general layout is as follows: Add color. xml to values: Add radio_pressed.xml to drawable. Main layout: MainActivity load main: Package com. example. fragment; import android. OS. bundle; import android. app. activity; impo
The following are simple:Now use the fragment to implement a simple dynamic UI, click the title of the left title bar, and then the left body bar to display the corresponding article1. Add two fragment in the Activity_main.xml layout.One corresponding to the left of the title bar, a corresponding to the right of the body barlinearlayout xmlns:android="Http://schemas.android.com/apk/res/
looks much like activity. It has the same callback functions as the activity, such as OnCreate (), OnStart (), OnPause (), and OnStop (). In fact, if you're using a ready-made Android app instead of fragment, you can simply port the code from the activity's callback function to the respective fragment callback function.In addition to the base class
Normally fragment as part of the host activity UI is embedded as part of the activity's entire view hierarchy.There are 2 ways you can add a fragment to activity layout:I. Declare fragment in the activity's layout fileYou can specify the Layout property (sdk3.0 later) for fragment as you would for a view.The example is
The examples in this article describe the implementation of Android programming using fragment-oriented and first-level returns. Share to everyone for your reference, specific as follows: 1. First attach the project structure chart: 2. First add an interface file Backhandledinterface.java, define a setselectedfragment method to set the currently loaded fragment
). Delivery ();Cases: Copy Code code as follows: public void click_btn_flag02 (view view) { Getsupportfragmentmanager (). BeginTransaction (). Replace (R.id.fragment_container2,new Midfrag ()). commit (); } Note: function parameters to use view Here's a look at the example: The left side of the effect chart is a list, and the right side is the details of the list item.First look at the layout file (layout): The
In Android 3.0, Fragment as an important component, was added in, this class in android.app.Fragment; , you can directly inherit fragment to create a fragment class,Of course fragment can also be compatible in the lower version, including a fragmentactivity in the
In Android applications, multiple-screen sliding is a very common style, not using Viewpager code implementation will be very long, if the use of Viewpager, the code will be much shorter, But the use of Viewpager also has drawbacks: need to import Android-support-v4.jar, details can not control. But now things are different, ANDROID-SUPPORT-V4 offers a lot of pra
Absrtact: When we design the application, we hope to be able to make the most suitable for a variety of devices, including 4-inch screen, 7-inch screen, 10-inch screen and so on, Android development documentation for our reference, and Google Io app (ii) also realized this idea, they are using layout, Layout-large ... When we design the application, we hope to be able to do our best to fit a variety of devices, including 4-inch screen, 7-
A Brief Introduction to Fragment in android and a detailed column for creating tabs, androidfragment Fragment key points Design Philosophy Android 3.0 introduced the fragments concept to support more dynamic and flexible UI design on large screen devices, such as tablets. The screen size of a tablet is much larger than
activity are associated.Oncreateview ()Called when the UI that created the fragment is initialized.Onactivitycreated ()Called when the activity's OnCreate () method returns.Ondestroyview ()Called when the UI of fragment is removed.Ondetach ()Called when the fragment is associated with the activity.It can be seen from this graph that the state of activity determi
Description 1:We created a project in the previous method. If the latest ADT is used, the Minimum Android SDK selects android2. * or 1. *. A compatible project is created by default ,--Appcompat_v7: the project cannot be deleted, and an error is returned when you delete the project .. NOTE 2:After the project is created, it is found that the layout folder contains two default files: adtivity and fragment:
screen sizes. From your phone to your tablet.The 3.Fragment is a standalone module that is tightly bound to the activity. Can be dynamically removed, joined, exchanged, etc. in the run.4.Fragment provides a new way for you to unify your UI on different Android devices.5.Fragment switch is smooth and light-weight switc
Can be divided into the following sections: Using the Support library Create a fragment Create a dynamic UI Communication between multiple fragment 1. Use Support Library If your application needs to run in versions 3.0 and above, you can ignore this part of the content. If your application uses a version below 3.0, 1.6, or more, you need to use a support library to build it. To use the Support li
Generally, fragment is part of the host activity UI and embedded as part of the whole view hierarchy of the activity. You can add a fragment to activity layout in two ways: 1. Declare fragment in the layout file of the activityYou can specify the layout attribute for the fragment like a view (after sdk3.0 ).In this exa
Android SDK dynamically loads APK (Fragment or Activity implementation) and androidapk Respect originality: Http://blog.csdn.net/yuanzeyao/article/details/38565345 Recently, due to the project being too large, compilation and translation failed (Android seems to have a limit on the number of methods in an application), so I have been wondering whether to dynamica
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