Study number 2017-2018-2 "first line of Android" the first chapter summarizes the learning contents of learning summary Textbook
-Android System Architecture:
1.Linux Core LayerThe Android system is based on the Linux kernel, which provides the underlying drivers for various hardware on Android
At the end of May this year, Google was completely blocked by the wall, all Google's website can not visit, this time including the android.org,googlesource.com,code.google.com. Android's official resources are inaccessible, and it's certainly difficult to download the Android code.
This article is to solve this problem--to explain how to make download from Github.com/andorid andorid the latest source code. As the saying goes, "to give the
[Android performance optimization series] memory basics-how to manage memory for Android, android-android
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Android Studio SlidingMenu cannot find the symbol solution for importing/configuring FloatMath. studioslidingmenu
SlidingMenu is a third-party open-source slide control. Is a good interaction logic.
Many excellent applications use SlidingMenu, such as QQ and CSDN Android clients.
Its github home: https://github.com/jfeinstein10/SlidingMenu
Before configuration, We need to download the ZIP code from its h
Add permission
First, add the network access permission to manifest:
Copy codeThe Code is as follows: ...
The complete Manifest file is as follows: Copy codeThe Code is as follows: Package = "com. example. httpdemo1"Android: versionCode = "1"Android: versionName = "1.0" type = "codeph" text = "/codeph">Android: minSdkVersion
NFC filter mechanism is regarded as if... else if... if the else statement is used, this filtering mechanism is equivalent to the else part. If the current two filters fail to match, the system will use this filter to process them, this filtering mechanism is used to process unrecognized tags (the data format is incorrect and the formats supported by tags do not match ).
5. the Android system matches NDEF_DISCOVERED, TECH_DISCOVERED, and TAG_DISCOVE
Android: Gravity/Android: layout_gravityDifferences: Android: gravity is used to set the position of the content in the view relative to the view. For example, set the text in the button to the left and center of the view. Android: layout_gravity is used to set the relative position of the view and its parent view. For
A brief introduction of Android studioThe Android Studio IDE (Android Platform integrated development Environment) was first released by the GOOGLEI/O conference in 2013. It is based on the IntelliJ idea development environment and is designed to replace Eclipse and ADT (the Android Developer Tool) to provide developer
NDK version > Project minsdkversion, to remove this warning will change the minimum supported version of Minsdkversion to the NDK version number, of course it is foolish, but we can use the NDK's low version of the compiler, It's not very good. Here's a good workaround:1, create a new file under the project directory JNI, the file name is Application.mk2, add such a sentence to the Application.mk file:APP_
I. Differences between Android: gravity and Android: layout_gravity
Android; gravity is the position of its content relative to its own control, while Android: layout_gravity is its position relative to its parent class.
For example, if there is an edittext file, one sets Android
Android app source code is based on android's campus second-hand Transaction System Client + SERVER + database, Android android
The source code is a campus second-hand transaction system application with a server, and is also a campus second-hand Transaction System Based on Android and javaweb, including
simple thing, the landlord is really IQ catch urgent, have been for half a day.
First is the introduction of micro-letter demo, to the official download of the Simpledemo, found a bunch of errors, well, first of all, the SDK, this is not more to repeat.
Then modify the try Again Oh,no, another ghost.
What ghost, look carefully, is drawable inside there is not a PNG file named PNG file.
Well, if you're patient enough, then dozens of pictures, you can still check the suffix directly, see if
Android Studio, it will download the corresponding version of gradle of the project. This process is very slow and sometimes There will be various errors. Therefore, use the local existing gradle directly. The replacement method is simple. You only need to copy the corresponding folder in the locally created project to the project downloaded from github and replace it.
3. Import a project to Android Studio
Unit Test and UI test in Android Studio, androidui
This tutorial is translated from codelab for Testing in Google I/O 2015. If you are familiar with scientific Internet access, click here to read: Unit and UI Testing in Android Studio. Limited capability. If any translation error occurs, please correct your criticism. If you need to reprint it, please indicate the source.Download test source code from Githu
Welcome to Android Studio (Meet Android Studio) 1, prefaceAndroid Studio is an Android application development environment based on IntelliJ idea under the official whole. Based on IntelliJ's powerful code editor and development tools, Android Studio offers more features to increase your efficiency in developing
Android Android-android Application Structure Analysis (4), android Application Development
Description of the automatically generated R. java File
1 public final class R { 2 public static final class attr { 3 } 4 public static final class dimen { 5 /** Default screen margins, per the
Android android source code case when adding the volume plus/minus button in the navigation bar, Android android
Some Android devices do not have a volume adjustment button for the entity, or you need to add a volume addition or subtraction button to the virtual buttons in t
For the development platform, if the data storage has good support, then the development of the application will have a great role in promoting.
In general, there are three ways to store data: One is a file, one is a database, and the other is a network. Where files and databases may be used a little more, the file is easy to use, the program can define its own format; The database used a bit annoying lock some, but it has its advantages, such as in the massive data performance is superior, the
Frame Android Studio Downloads installation and configuration development environment tutorialHttp://www.111cn.net/sj/android/74261.htm
Win7x64 Android Stuido installation and building development environment problem solvingHttp://www.111cn.net/sj/android/74265.htm
Mac Download install
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