jawbone activity

Development environment: android4.1.1Experiment function:In the first Hello world! Displays good in the activity for the label, which has a button named next. Click the Next button to enter the second activity, with only 1 close buttons in the second interface. Of course, people on the internet will be relatively safe to implement the shutdown function is not very simple, because Android has a special exit

four startup modes for activity Standard, Singletop, Singletask, SingleInstance In Androidmanifest configuration: The default mode is standard standard mode, where multiple instances of the same activity are created and placed on the task stack in accordance with the advanced principle one by one. when we press the back key, we remove the activity from the tas

Today I want to realize the function of returning to the last activity in view. Because while the view is contained in an activity, the object that is obtained directly in the view is not an activity but the view, and it is not possible to write the name of the activity directly. So I found this method and attached it!

Fragmentmanager In order to manage fragments in activity, you need to use Fragmentmanager. To get it, you need to invoke the Getfragmentmanager () method in the activity. Because the API for Fragmentmanager is introduced in Android 3.0, API level 11, for previous versions, you need to use the fragmentactivity in the Support library, and use the Getsupportfragmentmanager () method. The work that can be done

If we develop an application that needs to play audio, we all know that the audio will be used for the MediaPlayer class, where I do not need to turn on the service, play audio in this activity, and when the activity is destroyed, the audio ends But there is a focus that needs immediate change the current playback time My idea is to open a thread that calculates the remaining playback time of the curren

Activity A and B A Get Data Activity B returns the activity of the data Click on the button on a, show the contact list in B on the textview of a and use the selected data to Baseadapter 1: In the main configuration file to declare bactivity and registration address Book read and Write permissions [HTML] Copy Code code as follows: lt;! The-

1. Create a new activity and print out each life cycle 2, run the activity, get the following information Oncreate--> Onstart--> Onresume--> 3, press CRTL+F12 switch Cheng when Onsaveinstancestate--> Onpause--> Onstop--> Ondestroy--> Oncreate--> Onstart--> Onrestoreinstancestate--> Onresume--> 4, and then press CRTL+F12 switch to the vertical screen, the discovery printed two times the same log

Http://www.2cto.com/kf/201108/102108.html What is the knowledge of the official API. However, since many people are not good at English, they have reproduced this article, and the translation is very good. Do not understand the activity declaration cycle, and the program framework design, it is best to take a look.Activity and Task Design AbstractActivity is the main component of Android applications.In addition to writing the

2012-09-13 16:33 1221 People read comments (2) Collection report recently in the study based on android4.0 new additions to new features actionbar and fragment development, in android4.0 system Actionbar is in the boot ACTI Vity (Actionbar built in) will be shown, typically on the top of the activity reserve space, the leftmost display of the application's icon and title. We know android2.3. Previously, a blank space was reserved above the main

Objective: Android has been learning for over a year and is currently working on Android development. Dare not say proficient, but also small have experience. I believe many Android beginners and I just started to contact with Android, often only to understand the surface of some knowledge points, if others ask something, but also really can not say a Sanlai, often in the "understanding" stage. So, I am going to learn the Android process and experience summed up, published, I hope to learn abou

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