Android

We already know that is used to define how your activity is enabled by another activity. This is the so-called "filter ". However, if two activities have the same , what will happen? In androidmanifest. XMLCode. [Java] View plaincopy

In addition to the query URI manually written, you can also use the URI query constant built in Android. For example, in addition to content: // contacts/people, you can write this assignment statement. Uri allcontacts = contactscontract.

The edittext control only requires two steps to specify the character input. Add specified characters to strings. xml . _ 0123456789 abcdefghijklmnopqrstuvwxyzabcdefghijklimnopqrstuvwxyz Add agg_string_only_enable_number_english_letter to the

Various events in Android are implemented by different listeners. For example, the key event is monitored by onclicklistener, And the touch event is listened by ontouchlistener. First set the listener, and then input the event to be listened on

/** * Convert the string to a 16-bit MD5 value. * * @ Param string * @ Return */ Public static string MD5 (string ){ Byte [] hash; Try { Hash = messagedigest. getinstance ("MD5"). Digest ( String. getbytes ("UTF-8 ")); } Catch

1. Download msysgit. msysgit is a git client program developed by Google for Windows.Http://code.google.com/p/msysgit/2. Install the msysgit software. Next, skip this step...3. Create a directory to store the source code to be downloaded, which is

The Code calls the Android Application to uninstallIn Android applications, a few are offered to uninstall their own applications, that is, some of the most uninstall applications. I personally think that, from the product perspective, it is not

Prerequisites: 1. The mobile phone is already Root 2. You have installed the re File Manager. Go to the RE File Manager and find build. Prop. Build. Prop explains how to modify the default language, default ringtone, default time zone, and version

For beginners of Android, it is important to establish a development environment for Android, because it is the basis for Android Application software development. However, for various reasons, the four major software that builds the android

I have been using Vim to write code before. I don't want to replace it with eclipse because it is easy to use. I am not used to the eclipse completion method and the memory CPU occupied by eclipse is relatively large. Although eclipse has the VI

For some reason, it is very difficult for us to access Google's website. I remember that we could download at least the android API versions in the Eclipse plug-in. But now we can't download them directly .. Various pitfalls The solution is as

Source: http://blog.sina.com.cn/s/blog_9c153bc60101a0aq.html Explanation: Bundle class is used to carry data. It is similar to map and is used to store values in the form of key-Value Name-value pairs. Compared with map, it provides various common

 I simply learned about the widget components of Android. And their implementation methods. First, let's talk about the most commonly used button. 1. Button button Create a button in the main. xml file Public class mainactivity extends activity { @

1. Start emulator (simulator)Enter emulator in DOS and press enter to start emulator, provided that you add the tools directory of the android SDK to the environment variable; otherwise, you must first enter the tools directory of the android SDK,

[Function]1. viewflipper can contain multiple views, and the switching between views involves animation, for example, gradient effect. [Code]1. Create a main. xml file containing viewflipper and two buttons for each view switch.Java code

Project needs to use viewpager, do not hesitate to introduce the official android-support-v4.jar The development process is not surprising. Two problems occurred during signature packaging. 1. An error occurred while exporting the signature APK

Reprinted: http://blog.csdn.net/caocaozhuce/article/details/8542894 Android: allowtaskreparenting:Indicates whether an activity can be moved from a started task to a task with affinity (when the task enters the foreground). "True" indicates that the

For Android commands, select a few frequently used records. 1. view the Android version list Command: ./Android list target   2. Create a simulator based on the version number. Command: ./Android create AVD-N magicyu-T 8 Display: Created AVD 'mytest'

Duplicate ID in XML in Android Statement: Reprinted with the original address. Today, when I was working on the project, I found that @ + id can be duplicated, and the program will not report an error. Depressed. What is going on? After Google and

My application will create a shortcut on the desktop when it is used for the first time. The code for creating a shortcut is as follows: my application will create a shortcut on the desktop when it is used for the first time. The code for creating a