Introduction
An Android app feature is typically split into multiple activity, and each activity is connected through intcnt, while the Android system, which holds the entire app's activity through the stack structure, i
reprint Please specify: http://blog.csdn.net/zhaokaiqiang1992This article is translated from http://developer.android.com/training/basics/activity-lifecycle/starting.html, you can go to see the original text.Android is not like other programs, it is not loaded from the main () function, the Android system is done by invoking the corresponding callback method of the life cycle at different times to initializ
Tasks and return stacksApps typically contain multiple Activity. Each activity should be designed around specific actions that the user can perform, and can initiate other activity. For example, an e-mail app might have an Activity that displays a list of new messages. When
Original link: http://sqa.stackexchange.com/questions/12373/android-app-testing-with-appium/12382#12382I suggest the Use adb (Android Debug Bridge) tool (part of the Android SDK). So, install application under test on target Android device or emulator. And you should run app
jump to another activity.
The method used to pass data in two activities. The value is 123.
Use Intent to send messages
From one component to another
Text messageThis is a feature that we often use. android comes with a text message. The two activities in the two applications do not prevent intent from transmitting data.
Add a piece of code to anotheractivity. It is not the previous
schematic diagram of the singleinstance is as followsWhen we see the jump from mainactivity to secondactivity, we re-enable a new stack structure to place the secondactivity instance, then press the back key again to return to the original stack structure , the lower half of the figure is shown in secondactivity again to jump to mainactivity, this time the system will generate a mainactivity instance in the original stack structure, and then back two times, notice, did not exit, But to return t
First to implement the function, or first from the API to find. See if there's anything you want. This is actually listening to the status of activity within the app. What to do?To an API location: http://www.android-doc.com/reference/android/app/Application.html Did you see that? Here's a way to registeractivitylifec
1. Create a NewActivity
During desktop development, we can open another new window through a control event in a window. During web application development, we can also open a new page through a connection. By adding a new window to improve or enhance the software functions, how should we open a new activity in Android Application Development?
1.Add a new activity
activities can be started by clicking the icon on applicationlauncher on the home screen. The activity used to crop an image and append a file cannot be started from the main screen. They need a context runtime environment and cannot run independently.In fact, not all applications have icons and can be started on the main screen. Take a small application that is not commonly used as an example. This small application can replace the entry point funct
A lot of people have appeared java.lang.RuntimeException:Unable to instantiate activity componentinfo{*****activity}: Java.lang.ClassNotFoundException:Didn ' t find Class "*****activity" on path:/data/app/*******.apk error, in Android development, I also encountered this pro
) that the activity is Android-initiated, so that programmers have to explicitly tell Android "what's in my app that you're going to start for me", And how to tell Android this information, Android provides us with a androidmanife
Android starts the activity anonymously and starts the system activity
Generally, when we use Intent for activity jump, we all know the name of the activity to jump to, for example:
Intent intent=new Intent(FirstActivity.this,SecondActitivy.class);startActivity(intent);When
The main content of this article includes 1. activity creation, configuration, and use; 2. activity jump and transfer value; 3. startActivityForResult; 4. activity lifecycle.
1. Create, configure, and use an activity
Activity is an application component that provides users w
. Launch_single_instance ...} if (R.resultto! = null (launchflagsintent.flag_activity_new_task)! = 0) {...} Boolean addingtotask = False;........boolean NewTask = false;//Should this is considered a new task?if (R.resultto = = nul L !addingtotask (launchflagsintent.flag_activity_new_task)! = 0) {...} else if (Sourcereco Rd! = null) {...//an existing activity was starting this new activity, so we want//to
The Android system calls the corresponding callback function to execute the code according to the different stages of the life cycle. The system has an ordered set of callback functions to start and destroy an activity. This section discusses what to do and what not to do in the callback functions for different life cycles.Understanding the callback of the life cycleIn the life cycle of an
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 androi
Package = "com. example. android. apis">
The android: name attribute of the activity component is abbreviated as a class name. but why android: anem = "ApiDemos" in
However, let's test and verify the program. The results "ApiDemos" and ". ApiDemos" both run the program correctly. Is there a "." before the class name
communication record icon, open the app, at this time will not create a new stack, stack 1 back to the front desk!2) If we click on another icon to open a new app, then we will create a new stack 2, stack 2 will go to the foreground,and Stack 1 continues to stay in the background;3) The following is also the case ... And so on
3.Task management 1) document translation:All right, go ahead. Document, st
Data exchange between Fragment and Activity generally includes three types:
1. Fragment obtains data from the Activity (this article only introduces the first type );
2. Activity obtains data from Fragment;
3. Get data between Fragment.
Implementation:
Data is transmitted from the Activity to two Fragment. After the F
Monkeyrunner how it gets APP of the Package Name and the Activity NameRecent attempts to use Monkeyrunner for Android automated testing have started with the use of click-to-screen coordinates to run applications, but clicking on screen coordinates is cumbersome and less versatile. Through degrees Niang I know can use Device.startactivity ("Package name/
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