Android

Before using sqlite3, I did not notice the sqliteopenhelper class, so I had to create and maintain databases and data tables in the activity. However, with the sqliteopenhelper class, you can separate the maintenance of databases, data tables,

For example, if the activity starts the System camera function and sometimes the activity is forced to restart when it is returned, the solution is as follows: 1. Add the following attributes to the activity in the configuration file: Android:

Although I have already found relevant information on the Internet, I still write and write it to make it easier for me to read and remember, while providing help to csdn bloggers. 1.Android:Layout_weight="1"(The value here can be modified

Address: http://lisaguo.iteye.com/blog/920065     Android phone analysis (1)Android's radio interface layer (RIL) provides an abstraction layer between the telephone service and the radio hardware.Radio interface layer RIL (radio interface layer) is

Let's take a look at an example: (mogujie.com) It looks like our gridview, but it doesn't look like it, because the item size is not fixed, it looks like it has a different flavor, indeed. just like our square corner image, the corner appears after

For self-developed ndk, it should be a little excited to compile and run Hello-JNI. (Ubuntu environment) The establishment of the ndk development environment is easy to stop, but there are still several days of prompts: 1. In the C/C ++

This article is selected from the android Development Authority guide. The android SDK provides a default menu creation mechanism. However, although menus created through this mechanism are fully functional, the interface effect is a bit "earthy ".

I recently studied how to implement the FTP server function on the android client. I searched a few on the Internet and found that I could not use a variety of plagiarism. I 'd better study it myself. First download the FTP server jar and

 Accessing hidden System Service APIs in Android From: http://blog.codetastrophe.com/2008/12/accessing-hidden-system-service-apis-in.html  Android's SDK allows developers to do a lot with the platform, but there are some interesting capabilities of

Follow the custom dialog section in the android manual to learn how to use the custom dialog. the following error occurs: android.view.WindowManager$BadTokenException: Unableto add window--tokennullisnotforan application The Code logic on the

NFC (Near Field Communication) short-range communication technology NFC is a set of short-distance wireless communication, usually with a distance of 4 cm or shorter. The working frequency of NFC is 13.56 M Hz, and the transmission rate is 106

Under Ubuntu, enter terminal, and enter: Sudo gedit/etc/udev/rules. d/50-android.rules To open the text editor. Paste the following text and save it. Subsystem = "USB", sysfs {idvendor} = "0bb4", mode = "0666" Run the following command at the

During Android application development, there are only two types, one is simple local application operations on the C/S mobile phone, and the other is through the network, local app operations on mobile phones are relatively simple, but interactions

Today, I will simply summarize my previous learning articles and experiences. Here I will directly paste the code, hoping to provide the best learning reference for beginners, we also hope that more developers will join the android development team

Some articles on the Internet are summarized as follows: Run the DEBUG command of eclipse and install your settings on the simulator. the following error occurs:[11:14:27-settings] Android launch![11:14:27-settings] ADB is running normally.[11:14:

Environment: windows7, vs2010, cocos2d-1.0.1-x-0.12.0, cygwin, Eclipse, Android sdk4.0.3, ndk r7b Developed on Vs and transplanted to Android. 20120718 The foreach operation of ccarray: Problems with cocos2d-x local notification calls

Recently, I encountered a method to define the size, similar to the macro definition in C. In fact, I have seen this method before. Today I have time to record it for future use. Here we will introduce: Use of dimension resource XML filesThe

This is a problem encountered in actual work: you can modify the left, middle, and right button functions on the mouse in settings. There are four functions: Left click, right click, menu key and return key. The correspondence between buttons and

Generally, to improve the user experience, after the LCD Initialization is completed in the system startup phase, the first screen is displayed quickly to avoid the black screen taking too long and causing the user to think that the system is

The Baidu map development kit is baidumapapi_v2_00001.jar, And the SDK version is locsdk_3.3.jar. It can be run during debugging! However, it cannot run after the signature is packaged! Baidu Google for a long time! Finally, I did it myself! The