Android

1. The positive and negative directions of the X, Y, and Z axes of the accelrator: When the mobile phone screen is placed horizontally up: (x, y, z) = (0, 0,-10) instead of (0, 0, 10)When the phone is lifted at the top, y decreases and the value

  Http://bbs.gfan.com/viewthread.php? Tid = 840670 & extra = & Highlight = % E5 % A3 % B0 % E9 % 9f % B3 & page = 1       Recently, I saw the i9008 beautification stickers from Tx, which also aroused my interest in playing the machine.

1. First find the email in the android simulator, and then you can add an email username and password (make sure your simulator has a mobile signal)   2. Click Next to select accout. Generally, POP3 accout is selected.   3. Some mailbox

References Before debugging: 1) debug the LCD backlight. The backlight is mainly divided into the built-in PMIC and the independent dcdc. If the backlight is the built-in PMIC, the general platform vendor has done a good job and can directly call

The margin and padding of Android are the same as those of HTML. As shown in: the yellow part is padding, and the gray part is margin. In general, padding is an internal border, and margin is an external border. The corresponding property

Fragment is used for project creation, and an exception occurs during fragment quick switchover: illegalstateexception: can not perform this action after onsaveinstancestate Logcat prompt: caused by: Java. Lang. illegalstateexception: can not

Recently, I encountered an XML parsing problem in the project. We used the DOM parser that comes with Android to parse XML, but found a problem with Android, that is, on SDK 2.3, strings such as and cannot be parsed. Although the data we return

How to compile the android project? The following is a clear explanation of how to compile the android project in this official document,I will not talk about too many detailed explanations, rtfm. What I need to say is that we can allow the IDE to

This example uses sharedpreferences as the data access carrier.To use sharedpreferences to access a data set, follow these steps: Sharedpreferences sharedpre = getsharedpreferences (name, mode); Save: sharedpreferences. editor editor = sharedpre.

    There are three onkey events in the listview source code of Android: onkeydown, onkeyup, and onkeymultiple, all of which are processed by the commonkey method. In the commonkey method, only local processing is overwritten for action_down, that

In Android projects, some global static variables are sometimes required to save some data. In this way, other pages can call the data after the value assignment interface is disabled.   But we know that global static variables in Java (Java does

Android has a special feature. What we can see is: UI (User Interface), user interface Today, I will study the UI layout. After a few days, I should have some knowledge about GUI programming in Java. There is a design pattern in it: Observer,

The binder communicates between processes using a small custom kernel module. the binder IPC is used instead of standard Linux IPC facilities (name pipe, socket, signal and so on) so that we can efficiently model our IPC operations as "thread

1. Obtain the android source code Google uses the version control tool git to manage the android source code. To obtain the android source code of various versions, it must be obtained online from the Google repository. Google also developed a repo

In the android painting learning Summary (4) -- animation (I), I have introduced in detail the definition and use of tween animation. Due to limited space, many important aspects are not described, this article makes a complete summary on the one

  Com. Android. providers. Media/databases under data/is divided into two parts: External-cfe1d0f.db // external data mainly from SDIn cardData Internal. DB // mainly system data, such as system ringtones     Among them, the table above is

Hello everyone, let's briefly talk about the android status bar reminder, which will also be used frequently during development. When we plug in USB, there will be a status bar reminder, and a text message will also contain a status bar

 The android Input Method Framework has a complex price comparison. From the process perspective, the related functions are mainly distributed in the following three locations: A client application is an application that contains a graphical

  Intent intent = new intent (); Intent. setaction (intent. action_call ); Intent. setdata (URI. parse ("Tel:" + number )); Startactivity (intent ); The above code starts an instance of another activity through intent in an activity.As

In the previous article "how to configure 163 mailbox in Android", we can use the following example: The business logic is as follows: In the example, a text box is used to simulate user information. When the program exits, it stores the text file