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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
The number of rows of tablelayout is directly specified by the developer, that is, the number of tablerow objects (or view controls. The number of columns in tablelayout is equal to the number of columns in tablerow with the maximum number of child controls. For example, if the first tablerow contains two sub-controls, the second tablerow contains three, and the third tablerow contains four, the number of columns of the tablelayout is 4. Attributes that can be set for tablelayout include gl
1. Build an android Development Environment Preparation: Download eclipse, JDK, Android SDK, and ADT plug-in : Eclipse: http://www.eclipse.org/downloads/ JDK: http://www.oracle.com/technetwork/java/javase/downloads/jdk7u9-downloads-1859576.html Android SDK: http://developer.android.com/sdk/index.html ADT: http://developer.android.com/tools/sdk/eclipse-a
Author: Zambia chicks Since its launch, Android has been favored and sought after by developers as an open source. Developers of most Android applications will refer to Dev guide. If you want to gain an in-depth understanding of Android, you must refer to the underlying source code to make it more straightforward.The Androi
Android: gravity and android: layout_Gravity attributes may be frequently used during UI layout. Many people have explained the differences between these two attributes on the Internet. (Materials are from the Internet) LinearLayout has two very similar attributes: Android: gravity and android: layout_gravity. Their di
[Development Diary of Android in a row from scratch] (8) -- Android data storage (II) and android Data StorageLet's talk about database operations. Come On!When talking about data storage, databases have to be mentioned. Databases are the best tool for storing relational data. Android provides powerful database support
Travel to Android 16th use of various resources in android and travel to android Use of various resources in android: In android development, reasonable use of various resources should be defined in their respective xml for reuse; String Resource: strings. xml, referenced in
Windows XP-android environment setup-[Comprehensive tutorials on Tanzhou android development], xp-android Recently, many people in our class won't build the environment. Today, our Tanzhou android teacher talked about how to build the Windows XP-android environment. I secret
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
/"+ context.getpackagename () + "/shared_prefs"));} /** * Clear the application database by name * * @param context * @param dbname * *public static void Cleandatabasebyname (context context, String dbname) {Context.deletedatabase (dbname);} /** * Clear the content under/data/data/com.xxx.xxx/files * * @param context * *public static void Cleanfiles (context context) {Deletefilesbydirectory (Context.getfilesdir ());} /*** * Clear the external cache content (/mnt/sdcard/
Android development will bring about a new wave of popularity. Many developers have invested in this wave and created many excellent applications. Many developers provide open-source applications and contribute their wisdom and creativity. Learning open source code is the best way to master the technology. Several open-source application projects are recommended below. These projects not only provide excellent ideas, but can also be directly mastered.
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
[Android development experience] Use Android Studio for unit testing and android unit testing Reprinted please indicate the source: http://blog.csdn.net/zhaokaiqiang1992 Android Studio has reached version 1.2, and developers in China are basically switching from Eclipse to Andr
Android configuration file (2) and android configuration file We know that each module of the Android system provides very powerful functions (such as phones, power supplies, and settings). By using these functions, applications can be more powerful and flexible. However, using these functions is not unconditional, but requires some permissions. Next, we will beg
Free Library and tool set for Android development, android class libraryA set of free class libraries and tools for Android development, which are classified by directory. Action Bars ActionBarSherlock Extended ActionBar FadingActionBar GlassActionBar V7 appcompat library Advertisement AdMob Google Mobile Ads SDK InMobi MMedia MobileCore MoPub Tapjo
QR code synthesis, Apple and android (ios and android) are combined into a QR code, allowing users to scan a QR code to download apple and android apps separately. android QR code scanning Because of the company's promotion, there is no suitable tool to synthesize a QR code from Apple and
Ym-Android bus summarizes nearly a hundred excellent open-source android projects. 1. sample projects provided by the Android teamIf you do not start by learning the sample code provided by the Android SDK, there may be no better way to master the development on the Android
Android. Permission. access_coarse_locationAllow a program to access cellid or WiFi hotspot to obtain rough location(Allows an application to access coarse (e.g., cell-ID, WiFi) location) Android. Permission. access_fine_locationAllow a program to access excellent locations (such as GPS)(Allows an application to access fine (e.g., GPS) location) Android. Permis
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