My android learning experience 3 and android learning experience 3
Activity Layout
There are five main la s:
1. LinearLayout (linear layout)
You can use the orientation attribute to set whether the linear layout is horizontal or vertical.
2. TableLayout (table layout)
Xml layout content Summary (3) -- Android, xml -- android
Border and border effects are often used in xml. Here we will summarize them.
3. border (border and border effect)
(1) right-angle border line
Android: layout_width = "200dp"And
Step by step, develop the first Android project as shown in the figure below and run the Android-Android development example tutorial 2 and the first android program.1. generate an Android Application Project
1.run eclipse.exe
Android notes-data storage in Android (3), android notes
The Android system integrates a lightweight database:SQLiteTherefore, Android supports databases very well and every application can use it conveniently. As an embedded data
Project home: Https://github.com/ossrs/srs-sea
SRS Server Project: Https://github.com/ossrs/srs
A version that supports the rtmp push stream: Https://github.com/begeekmyfriend/yasea
In the Android version, in particular, the 4.1 introduced Mediacodec to encode the camera's image to achieve live broadcast.
The general Android push to the server, the use of ffmpeg mostly, that is, soft coding, in fact, the us
/data/
2. Implementation (the pictures are the welcome page, guide page, and software homepage respectively)Start the program for the first time: welcome page --> Guide page --> Software HomepageStart the program later: welcome page --> Software Homepage
3. Specific implementation Encoding
(1) welcome page Java code, that is, simply create a thread, delay the specified time, and then jump to it.Package co
line thread.2) Handler: You can construct a Handler object to communicate with Looper in order to push a new message into the MessageQueue, or to receive a message sent by Looper from MessageQueue.3) Message queue (Message Queuing): Used to hold messages placed by the thread.4) Thread: The UI thread is usually the main thread, and the Android launcher will creat
believe that in the future I will solve the problem, write better code.Sprint 1, 2, 3 General overview:The 1.github-->issues-->milestones situation is as follows:2. Burndown Chart: Sprint 1, 2, 3 each Sprint Burndown chart is as follows:
Chapter 3 UI cornerstone-UI layout (2), ui cornerstone3.2 Layout 3.2.1a brief introduction to Layout s
Generally, an Android view contains many controls. To make the interface reasonable and beautiful, we need to arrange them on the interface according to our design ideas. Then, we need containers to store these controls and control their location arrangement, li
This chapter mainly discusses how to build an Android development environment.
1.1 prepare for computer development
View System RequirementsWeb page, to confirm that your computer is powerful!
1.2 WindowsCreate an Android Development Environment
1.2.1 download the required installation package
To develop Android, you must install the Java Development Kit JDK and
discovered the problems of this product:
1. this is a passive social activity rather than an active social activity. If you want to use this product to meet strangers, you must be within mb. However, in most scenarios, users do not often move around, only living in a certain region.
2. This product for silk cannot provide enough topics to meet social needs. For example, I met a stranger and told me that I didn't know how to chat.
-landscape.png-320px x 200px
www/res/screen/android/screen-mdpi-landscape.png-480px x 320px
www/res/screen/android/screen-hdpi-landscape.png-800px x 480px
www/res/screen/android/screen-xhdpi-landscape.png-1280px x 720px
www/res/screen/android/screen-ldpi-portrait.png-200px x 320px
www/res/screen/
data to the actual gravity coordinate. Generally, it can be set to null by default.
The third is an array of 3, indicating that the data obtained from the accelerometer is in onsensorchanged.
The fourth is an array of 3, which indicates the data obtained from the magnetic sensor.In onsensorchanged
Well, the basic logic is like this. The following is an example of a simple test direction, which can
Android automated testing (3)
I used java in the previous two articles to implement Android automated testing (1) how to install and uninstall an application (java) and Android automated testing (2) search for objects (java) by ID ). However, they are implemented by using t
the time when the animation was stopped
ZAdjustment [int]
Changing the Z Order of an animation
0: Keep Z Order unchanged1: Keep at the top-1: Keep at the bottom layer
Table 2
XML Node
Function Description
Alpha
Gradient transparency animation effect
Android: fromAlpha = "0.1 ″Android: toAlpha = "1.0
Basic tutorial for Android -- 8.3.11 Paint API -- ColorFilter (color filter) (3-3)
This section introduces:
Well, I would have told you not to write it today. After all, it's hard to write it ~, What this section brings to you is:The third subclass of ColorFilter:Porterducolorfilter, SeePorterDuffNo.If you have read the previousBasic tutorial for
[Video] development secrets of Embedded Linux/Android drivers (3) camera driver development and android driver development
Secrets of Embedded Linux/Android driver development (3) camera driver development
Topic introduction:This topic provides an in-depth analysis of the
to observe the individual's completion of the task. Integration Test: logical extension of unit test. The simplest form is that two tested units are combined into one component and the interfaces between them are tested.2. Unit Test Framework (Junit)
Android code can only run in the Dalvik virtual machine on the mobile phone. An error is reported in the JVM of the PC. Write the test case and upload the t
angle starts from the static state and is flipped before and after
Values [2] indicates the Y axis angle. The rotation angle starts from the static state, and the left and right sides are flipped.
It can be seen that the method to obtain the direction in a unified way is necessary, because the algorithm for processing the data may be used in the first way, so the portability is not good when used in the second way.
See the following method.
Zookeeper
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.