groupthink activity

This article analyzes four kinds of activity loading modes of Android programming. Share to everyone for your reference, specific as follows: Activity status Activity is generally considered to have the following four states: ① Activities : When an activity is on top of the stack, it is visible, focused, and accepta

Four Common scenarios of Activity and four scenarios of activity 1. Common singleInsyance application scenarios: ① Mobile phone dialing interface (mobile phone dialing interface is used for numbers such as QQ and SMS) ② Social APP sharing page (QQ, zhihu) --External App calls the entry of its own client programThe singleInstance startup mode is used. The following uses the social sharing page as an exampl

Activity (1), Activity ( An application contains at least one Activity. The Activity startup process is as follows: when an application is started, the android operating system will access the AndroidManifest of the application. xml file (this file describes the components used by the application, and the

Recently looked at this thing for a long time, to share to everyone,The principle is very simple, an activity in the Manifet declaration of Android:parentactivityname, this time through the activity in the upper left corner of the return button click Back,The parent activity that initiates the declaration will always call the parent activity's OnDestroy method, a

1 Reason: When you search for activity on the Internet, it basically tells you that eitherXMLOr isoverridependingtransition, but if you are the service startup activity what to do, this online does not have an answer, so I think about it, found in fact very simple. 2 Solution:In fact, it is very simple, let us understand the principle, so-called activity switchi

The startactivityforresult () method was used in a recent App , and there were some problems with it, such as when I Activity A calls the method to jump in activity b , and if a series of actions are completed in b jump to A Span class= "token MD md-em md-close" > , A in Onactivityresult () , but if the user cancels the operation, such as pressing the back key in B, it will ca

Transferred from: http://blog.csdn.net/jason0539/article/details/18075293The first method:Encountered a problem, need to control another acitivity in one activity to do some updates, did not expect to pass handler method, solve by the following way.1. Defining attributes in MyApp handlerPackage jason.com; Import Jason.com.MasterActivity.MyHandler; Import android.app.Application; /** * Implement application for data sharing * @author Jason * * *

Loading different fragment/fragment in the activityloaded in a differentFragmentLoad (toggle) Multiple fragment in the main activity (fragment) (can also be understood as activity jump fragment) or primary fragment Activity There is a fragment layout space in the layout, such as the ID named Main_ framelayout Write two fragment classes that inherit f

Implementation principle of layout files during Activity creation, activity LayoutSetContenView (R. id. activity) implementation principle 1. The underlying framework finds the layout File Based on the layout ID. 2. the underlying framework parses this layout file (pull parsing ). 3. The underlying framework constructs the element objects (EditText, TextView,

If you want to, you can hide the title bar of the Activity. You only need to call the requestWindowFeature () method and pass the constant Window. FEATURE_NO_TITLE.Package net. horsttnann. Activity101;Import net. horsttnann. Activity101.R;Import android. app. Activity;Import android. OS. Bundle;Import android. util. Log;Import android. view. Window;Public class Activity101Activity extends

How to destroy Activity, how to destroy multiple activities at a time, and how to destroy activityIn normal development, three activities are opened: A, B, and C. You need to click the "back" button in the android device, to exit the main interface (that is, three operations are required to destroy these three activities ). So how can we destroy the three activities once by clicking back? The procedure is simple as follows: (1) Create an ActivityColle

Crawl Activity Tree Site meeting activity data (http://www.huodongshu.com/html/index.html)The specific idea is [Python crawler] in the Xi. crawl activity line site similar, are used multi-threaded to crawl, but because of the active tree site, each keyword search page ur is fixed, such as the search "number" results have 470 results, no page 10 records, the secon

List Contents In the study and project use will use the activity to think of another activity in the fragment value, on the Internet to read a lot of senior posts, their own summary write a value-based way. For example, in a shopping mall app, the main interface nested 4fragment, there is a personal center, click the Login button of the personal center to jump to the login screen, in the login screen user n

Transferred from: http://blog.csdn.net/jason0539/article/details/18075293The first method:Encountered a problem, need to control another acitivity in one activity to do some updates, did not expect to pass handler method, solve by the following way.1. Defining attributes in MyApp handler 123456789101112131415161718192021222324 packagejason.com;importjason.com.MasterActivity.MyHandler;importandroid.app.Application; /*** 自己实现Application

Android activity-alias multi-entry configuration, android entry activity In the past, some applications used to generate two icons on the desktop. Some of these two icons are the portals of the same Activity and others are the portals of another Activity, how can this effect be achieved? When viewing the Android native

After setting android: parentActivityName, click the return key of the sub-Activity. The parent Activity always calls the OnDestroy () solution, I 've been checking this for a long time and share it with you, The principle is very simple. An Activity declares android: parentActivityName in manifet. At this time, click the return button in the upper left corner of

Basic activity jump, activity jump The problem solved today is activity redirection. Currently, I have learned two ways to jump. 1. Use setContentView () method 2. Use Intent object Method 1: setContentView () This method does not require the target activity to configure the activi