Mobile Develop

1. With hardware acceleration, application Add android:hardwareaccelerated= "true" in Androidmanifest.xml. But this needs to be used on Android 3.0.2. Set cache properties in View. Setdrawingcache is true.3. Optimize your layout. Use the layoutopt

1)   run at Terminal  lsusb will find the following similar records: Bus 002 device 001: id 1d6b:0001 linux  Foundation 1.1 root hubBus 003 Device 001: ID 1d6b:0001  linux foundation 1.1 root hubbus 004 device 005: id 1219:0102                # This

Today we are going to write a super super simple player, using the android comes with the music player class MediaPlayer, the first one:It only realizes the basic function of the player, the interface does not do, because it is not the focus of

SharedpreferencesSharedpreferences is also a lightweight method of data storage, which is essentially based on XML files that store Key-value key-value pairs of data, typically used to store some simple configuration information.Its storage location

The activity will re-execute the Oncreat function after the screen switch, but add the android:screenorientation= "user" Android to the Android project Mainfest.xml: Configchanges= "Orientation|keyboardhidden" after the after the screen switch

      HTML5 has a lot of new features to look forward to. One of the advantages of HTML5 is that it enables cross-platform game coding porting, and many companies are now using HTML5 technology on mobile devices. With the continuous enhancement of

This article reprinted to http://blog.sina.com.cn/s/blog_a843a8850101dxin.htmlCitation: http://blog.csdn.net/likendsl/article/details/7566305My summary:1, why use nszombieenabled?Application debugging may receive an error message similar to the

Determine debug signature and release signatureThe idea is:You can get the signature information in the package signature object, there is a hashcode () method in the Signature object, which can be used to identify the signature object.At present, I

Four ways to store Android dataAs a finished application, data storage operations are essential. As a result, the Android system offers four ways to store data.are: Sharepreference, SQLite, Content provider, and file.Because the data is basically

To achieve music playback.In order to quickly achieve music playback, we use MediaPlayer instead of Soundpool, which is said to soundpool more freedom than MediaPlayer. However, according to my understanding, Soundpool does not support audio

Two phones as a Bluetooth client and server, the client to connect to the server side, first to locate the server side. So the phone as a server needs to be set up to be searchable.First two phones are to turn on Bluetooth, and in a phone's

Reprinted from: Android gets a picture of a resource file r.drawable converted to drawable, bitmap1.Resources resources = Mcontext.getresources ();drawable drawable = resources.getdrawable (R.DRAWABLE.A);Imageview.setbackground

Two: UI thread plus load image1. Using AsynctaskThe Asynctask class provides a simple background processing method and returns the results to the UI thread.It is proposed in the thread to use weakreference to cache UI controls that display bitmap,

The P12 file for the iOS push certificate is not a certificate file directly from the keychain, but it needs to be made by the OpenSSL tool. (Fortunately, Mac OS has the OpenSSL command by default)For different server platforms, the required

I upgraded the Android ADT and SDK from 4.0 to 4.2, and found that the platform of the various API level listed in Eclipse's Android settings had disappeared and could not create a new Android project. And check that both the SDK and ADT are

I-sync is a new photo social appIt allows you to make a picture with friends, relatives, strangers.Participate in the co-productions of others, reflect their own ideasInstructions for use:Use Gpuimage for filter rendering to achieve remote

First, the touch event transfer principle(1) The large direction is: passed from the parent control to the child control.--The parent control checks whether it can accept the handling of the event first--and then look at the touch that's not in your

Project hangs on the Oschina (GitHub is same) on, did not try to clone down, clone down after found a lot of error, a time to solve, tried a lot of times, finally fix, again from beginning to end to do again, and recorded, as follows: (Total 24

First, the theory1. Where are the various data of the app in WP?This is a good introduction to the problem. There are Installtionfolder, Knownfolder, SD Card ...2. An app 's data storage Overview Two major parts, InstallationFolder and app Data

We develop Android mostly using the Android simulator that comes with the Eclipse and Android SDK. Of course, Google has already launched its own Android development environment--android Studio, not long ago, Google released Android Studio 1.0, the