Android

This article is original. If you need to reprint it, please indicate the author and the source. Thank you! Many netizens do not quite understand the difference between DP, SP, and PX: here we will introduce DP and sp. DP is dip. This is

How to report an error when importing apidemos under sample in Android SDK   Today, I suddenly want to see the examples provided by Google under the sample are written in? I chose the song example for import. Who knows it is correct after import,

My friends collected and sorted it online. I couldn't find the source of the original

Android scans product barcode The simplest Android barcode scanning function just now can only scan QR codes. If you want to scan a regular product barcode, You need to seat it in the program and modify it a little bit. Interface changes: Effect of

See android2.2 When using the SDK source code, you can see this code in memoryfile. Java: Private Final Boolean mownsregion; // False if this is a ref to an existing ashmem region its constructor is: Public memoryfile (string name, int length)

Broadcastreceiver (broadcast receiver) is one of the four main components in Android.   The following is an overview of broadcastreceiver in Android DOC:① A broadcast receiver is a component that focuses on receiving and processing broadcast

Recently, I was looking at the source code in frameworks. I wanted to change it to see the effect. I didn't expect the simulator to run after the change. First, we declare that I have successfully pushed Android 4.0.3 plugin and launcher. odex. Now

We all know that a sliding switch is provided for Android 4.0 and later versions. Many people choose to use checkbox and put two images below. However, this operation only applies, and the effect is not very good, so I have customized the sliding

Android phone system-rild Rild is a local service started by the INIT process. This local service does not use communication methods such as binder, but uses Socket communication. RIL (radio interface layer) Android provides a RIL implementation

When I was working on a traditional Android 4.0 Project, I received a language problem. After the mobile phone was initialized, it started to display traditional Chinese. However, as the network signal appeared, the language was changed to

Android mobile phone's search function is a bit incomplete, which always makes us laugh. Press the search key on the homepage to search for the Internet.Instead of your phone. Fortunately, Google seems to have learned that the function of searching

This can be used to restore the previously backed up SMS.   Private void testinsertsms () { final string address = "Address"; final string date = "date "; final string READ = "read"; final string status = "status"; final string type = "type ";

  Excerpted from "detailed explanation of Android system principles and development points" Android STARTUP script init. RC Use the startup script init. RC in Android to perform some simple initialization operations during system initialization.

Hello everyone, I haven't seen you for a long time. Today I want to tell you how to pass objects in intent in Android. As far as I know, there are two methods: bundle. putserializable (Key, object); bundle. putparcelable (Key, object); of course,

Hello everyone, today I will share with you the example of Android parsing JSON. I have installed Tomcat here to let my computer act as the server. The most important thing is that you can modify the returned results as needed. First, let's take a

Author: fly_binbin Android GPS Positioning implementation Today, I spent more than an hour writing a small example of GPS code for obtaining geographic locations, including some online code and some modifications to the code, hope to help you. The

By default, when edittext gets the focus, a soft keyboard will pop up. If you want to achieve this, a dialog box will pop up directly, like a time dialog box, instead of a soft keyboard, how can you disable the card to bring up a soft

Android broadcastreceiver (Learning the video from instructor Mars)Registration Method There are two types: One is declared in androidmanifest. xml: Android: Name =". Test_receiver">Android: Name ="Android. Intent. Action. Sss"/> Code

The installation and uninstallation events of Android applications are monitored and broadcast globally by the system, and support for Android 1.5 and later versions Therefore, if you want to monitor and obtain the installation and uninstall events

There is now a need to download many files, put in an open port (URL) directory, the files under this directory will change, that is, the file name is not fixed. Now you need to download the files in this directory to the Android device. I found a