The generated Android application APK file is best optimized because the essence of the APK package is a zip-compressed document that optimizes the orderly arrangement of uncompressed data in the package, reducing the memory consumption at the time the application runs. We can use the Zipalign tool for APK optimization.
Zipalign is an important tool for optimizing APK applications, according to the Android
(Switch) Android system comes with Activity style (@ android: style/), android @ android
Configure in the activity of the AndroidManifest. xml file
1. android: theme = "@ android: style/Theme"
The default status is theme.
2.
This article from: http://www.cnblogs.com/yaotong/archive/2011/01/25/1943615.htmlIf the download is slow or cannot be downloaded, there are three ways to fix it1. Patience.2. Use P2SP download tools, such as Thunder, Baidu Cloud offline.3. You know.Cannot upgrade online please see belowsudo vi/etc/hostsAdd to74.125.206.93 dl-ssl.google.com2014.7ADT BundleHttp://dl.google.com/android/adt/adt-bundle-windows-x86-20140702.zipHttp://dl.google.com/
The previous article describes the communication between the Android phone and the BLE terminal, while the most common ble terminal should be the ibeacon base station advocated by Apple. Ibeacon technology based on BLE, it is characterized by the broadcast of external messages, mobile phones do not need to connect to the Ibeacon base station can also obtain its information, is mainly used to do indoor positioning and marketing information push, in the
Android Push principle
Since the recent project involved Android push, I saw something about Android push, and we know that the Android push can come down to 3 kinds of implementations:
1, POLL, pull. The general idea is to send the request to the server regularly, and then let the server return the information itsel
RAR for Android is an old WinRAR free Android tool that allows you to compress and decompress files on Android devices.
Via @Xang Azu
WinRAR, who ranks ahead of the piracy rate in China, has released a free decompression tool to support RAR, ZIP, TAR, GZ, BZ2, XZ, 7z, ISO, ARJ formats.
RAR for Android also support
I have been reading the MMS code for more than a month. I think it is necessary to take notes. I am reading the 1.5cupcake code. I also roughly browsed the code 2.2froyo. The difference is not big. When you look at the code, it is best to look at some WAP protocol, such as WAP-206-MMSCTR-20020115-a, WAP-209-MMSEncapsulation-20020105-a, also can look at the SMIL manual and its MMS Application Guide (Series 60 developer platform 2.0)
I. Sending and receiving MMs in four macro steps
A. Terminal A s
)
2
Onmeasure
Measure the size of the view (don't care for the moment)
3
Onsizechanged
Determine the view size (record the width of the current view)
4
Nlayout
Determine the child view layout (No child view, no care)
5
OnDraw
Actually draw the content (draw a pie chart)
6
Provide interface
Provides an interface (provides an interface for setting data)
The code is as follows:
public
A related download
(1) Java JDK Download:
Enter the page: http://java.sun.com/javase/downloads/index.jsp (or click to download directly) as follows:
Select the Download jdk to download only the JDK, without downloading the JRE.
(2) Eclipse download
Enter the page: http://www.eclipse.org/downloads/(or click Download: bt download http download) as shown below:
We chose the first (that is, the Eclipse IDE for Java EE developers)
(3) Download the Andr
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
message is broadcast when it is successfully delivered to the recipient's PendingIntent.Exception: IfDestinationAddressOrDataIf it is null, an IllegalArgumentException exception is thrown.
· VoidSendMultipartTextMessage(String destinationAddress,String scAddress,ArrayList
Parts
,ArrayList
SentIntents, ArrayList
DeliverIntents)
Send a multi-part text message based on SMS.
DivideMessage(String text) Splits messages into correct sizes.
Parameters:
1 ),
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
[Android] Build an android development environment in Eclipse, Android android
This article was written on February 13.
Home: http://www.cnblogs.com/game-testing/
Build an android development environment under Eclipse
Preface:
There are a variety of
[Android Wear] android wearable device Moto 360 evaluation and development analysis, Android androidPreface:
I just bought Moto 360 yesterday. This is the best Android wearable device that the landlord has seen so far, a round watch:
BesBuy and the official website are all sold out .. This is what I heard from the auth
[1] Android learning notes [the first android program], Android android
1. java JDK configure java System Variables
Java JDK
Please install it on Baidu
Configure java System Variables
1. Open my computer -- properties -- Advanced -- Environment Variables
2. Create System variables JAVA_HOME and CLASSPATH
Variable name
Android-the first Android program, android-android
Directory structure and functions of Android Projects
Directory
Function
Gen
Do not modify automatically generated files
Assets
Resources needed for custom projects, which canno
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