1. readobject error: Java. Lang. classnotfoundexception. Solution: the package names of the server and client are the same.
2. If the class is modified, the string ID error will be reported when reading the object.
3. the SDK of a higher version
Basic steps:1. Download Eclipse IDE2. Download the android SDK3. Configure the ADT plug-in
1. Download eclipseHttp://www.eclipse.org/downloads? Ostype = MacOSX downloadEclipse IDE for Java EE developers
2. Download the android SDK
Home Key (small house key)
The Home Key is mapped on the keyboard, which is quite memorable.
Menu key
The button used to open the menu. The F2 key is mapped to the keyboard, and the pgup key is also supported. In addition, it seems that
ArticleDirectory
Propertydescriptorhelper
AMF is an open-source transmission format developed by Adobe. It is used in multiple places, such as flash and background transmission, and red5 streaming media. The blazeds server in Adobe
1. check whether a device has a bluetooth device. Enable the bluetooth device to obtain the paired device.
These operations require Permissions
The following is to determine whether there is a bluetooth device, whether to enable Bluetooth, if not,
Document directory
1. Obtain the positioning functions supported by the device.
2. Select the positioning method you need
1. Obtain the positioning functions supported by the device.
After obtaining the locationmanager
List List = LM.
On the Android platform, in addition to operating files in the private folder of the application, you can also obtain the input stream to read data from resource files and assets, these files are stored in the Res/raw directory and Assets Directory
Android supports three bitmap formats: .png(),,,,,,.jpg(you can accept registry.gif (not recommended ).
You can use the bitmap file name as the resource ID to directly reference the bitmap file, or define a resource alias in XML.
Note: during the
1. Download The ndk and decompress it.2. Install cywin: Http://cygwin.com/Cygwin is a Linux simulated environment. Android ndk development currently does not support directly compiling C language files under windwos. Android is a Linux kernel-based
Sharedpreferences is a key-value pair that stores application configuration information. It can only store basic data types. The configuration file of a program can only be used in this application, or can only be used in the same package, but
Hello everyone, today we are going to talk about the collection of commonly used naming commands in Android development. Android commands will inevitably be used in our development. Some commands are indeed very useful.
This is especially true for
Hello everyone, our tutorial is onAndroidCustom in the tutorialViewFor beginners, they are usedAndroidThe traditional page layout method is as follows:
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Android: Orientation = "vertical"
Android: layout_width
Linearlayout has two very similar attributes: Android: gravity and Android: layout_gravity. Their difference lies inIn: Android: gravity is used to set the alignment of the view component, while Android: layout_gravity is used to setAlignment.
For
First, let's take a look at the architecture of the adapter:
The object of an adapter plays the role of a bridge. This bridge connects an adapterview and the data it contains. The adapter provides a way to access data items. The adapter also
1. JNI(1) Java call native CFor the basic concepts of JNI, refer to the following documents:Http://blog.csdn.net/believefym/archive/2007/06/08/1644635.aspxNote that the javah command processes the. Class file instead of the. Java file. You must
Java code/*** Get the city name through GPS** @ Param Context* An activity* @ Return city name*/Public static string getcityname (context ){Locationmanager;String contextstring = context. location_service;Locationmanager = (locationmanager) Context.
Edittext does not pop up software keyboard 12: 291. edittext does not pop up software keyboard by defaultMethod 1:In androidmainfest. XML, select the activity and set the windowsoftinputmode attribute to adjustunspecified | statehidden.For example:
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