[Android learning] android self-study: 001, Android androidAndroid-why do I need to learn about the operating system of the most popular handheld devices?
I studied Java web development at school. After graduation, I came to a game company to develop unity 3D and cocos 2d. In the company, I am waiting for nothing, so I don't need to do anything. I occasionally h
Android development implementation calculator example, android calculator example
Example
The Code is as follows:Android: id = "@ + id/warpcontent"Android: layout_width = "fill_parent"Android: layout_height = "fill_parent"Android: orientation = "vertical">
First, build the Android development environment
Preparation: Download Eclipse, JDK, Android SDK, ADT Plugin
1. Install and configure the Java Development environment:
① installs the prepared Eclipse and JDK on this machine (preferably installed in a full English path) and configures environment variables for JDK, where the JDK's variable value is the root directory of the JDK installation path, as my: D
Today, I saw an iOS written by the Turing machine people, directly to the official website (http://www.tuling123.com/openapi/) looked at the API access, too simple, just a GET request ~ So, wrote an android version of the robot, no technical content, But it is very fun ~ just last night to see their favorite Qin when the moon, hey, little Pixiu, is my robot pet! ~
This is an Android intelligent chat robot
Tags: github tle window remove line MoS CEP Pass source
3.1 Android Control architecture
Measurement of 3.2 view
Drawing of 3.3 view
Measurement of 3.4 ViewGroup
Drawing of 3.5 ViewGroup
3.6 Customizing View
3.6.1 to expand the existing space
3.6.2 Creating a composite control
3.6.3 rewrite view to achieve new space
3.7 Custom ViewGroup
3.8 event interception mechanis
[Android performance optimization series] memory basics-how to manage memory for Android, android-android
If you like my blog, please pay attention to my Weibo, please click here (http://weibo.com/kifile), thank you
Reprinted please indicate the source (http://blog.csdn.net/kifile), thank you again
Address: http://de
Android app source code is based on android's personal privacy monitoring project, Android android
The system draws on the advantages of existing security software and designs four functional modules: permission access monitoring, traffic monitoring, application risk monitoring, and signature verification. It also addresses the shortcomings of existing
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
Requirement Description: Android developmentContent: Environment building for Android developmentFrom: The time of the poemOriginal: http://www.cnblogs.com/zoupeiyang/p/4034517.htmlReference: http://jingyan.baidu.com/article/bea41d437a41b6b4c51be6c1.htmlIntroductionInstalling Android in Windows Development environment is not simple or complicated, this article fo
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
Hello everyone, this section is to share some of the Android image special effects processing tips, such as rounded corners, reflection, there is a picture scaling, drawable into bitmap,bitmap into drawable and so on.
Talk less, directly to explain today's example, this example is mainly to get wallpaper (Getwallpaper ()), and then some of the current wallpaper effects processing. Step by step:
The first step: a new
can be the interception of the image first compression, after all, the late still need to blur, that is, this image is compressed does not affect the fact that we are blurred (because to the end is blurred). In fact, when we compress the image, we find that the blur effect of the picture is different under the same blur radius, as shown in the following two figure:
The reason is: Gaussian fuzzy algorithm to determine the color of a point is through the point near the other points to obtain t
. This is a security mechanism. For Android, the final apk file contains the Dex type of file, Dex file is the class file repackaging, packaging rules are not simply compressed, but the class file inside the various function tables, variable table optimization, resulting in a new file, that is, Dex file. So loading this special class file requires a special ClassLoader dexclassloader.
Ii. the practical application of the Dexclassloader method
Suppos
Fourth, Android build system and custom Android platform system4.1Android compilation systemAndroid's source code is composed of hundreds of thousands of files, these files are interdependent, and some are independent of each other, they are placed in different directories by function or type, for this big project, Android through its own compilation system to co
Download Android Development sdk ndk and android development sdkndk
Version 2014.7
ADT BundleHttp://dl.google.com/android/adt/adt-bundle-windows-x86-20140702.zipHttp://dl.google.com/android/adt/adt-bundle-windows-x86_64-20140702.zipHttp://dl.google.com/android/adt/adt-bundle
The Audiomanager class is located on Android. Media package, this class provides access to control volume and sound mode operation
The following are the Audiomanager ways to set the sound mode and adjust the sound size.
How to get the Sound manager:
The code is as follows
Copy Code
Audiomanager Audiomanager = (audiomanager) getsystemservice (Audio_service);
The Main method inside:
A, set the sound mode
Introduction to Android Development (20) content provider 20.3 predefined query characters
Introduction to Android Development (20) content provider 20.2 ContentProvider use
Getting Started with Android development (20) content provider 20.1 data sharing
Getting Started with Android development (19) database 19.3 pr
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.