Original article address:Http://blog.csdn.net/xiaominghimi/archive/2011/02/12/6180606.aspx
A question asked by the brothers in the group just now, I will share it with you here: the new emulator is configured as a device simulator with a resolution of 800*480 FOR THE waga800, when we obtain its height and width in our program, we find that it is always 320*533, o
I. Introduction to ANDROID low power Bluetooth (BLE) APIfrom Android 4.3 (API 18) to support the core function of Bluetooth low power, ble, ble Bluetooth protocol is the GATT protocol, BLE related classes are not many, There are several classes in the Android.bluetooth package and the Android.bluetooth.le package: Android.bluetooth. . The bluetoothgattservice co
logcat.
Cause: logcat is disabled by default in some rom
Problem description: In ddms, the display of the device name as a question mark does not affect, that is, the display of adb get-serialno as a question mark does not affect.
Solution:
1. root permission required (not required for some rom)
2. Open logcat, set the level, and run the following command (after
Note: This analysis was made a long time ago and used for analysis.CodeIs Android 2.1 eclair. In the latest Android 4.x, the input-related code has changed. In Android 2.1, input-related code is scattered in the/frameworks/base/libs/UI/AND/frameworks/base/service/Java/COM/Android
When the earliest start of Android development, in order to debug convenient, looking for a remote control software under Android, support remote control on the computer and display the Android device synchronously. has tried 360 mobile phone assistants, Mobizen, Vysor and Mirrorgo and other software, feeling
Address: http://fsysky.blog.163.com/blog/static/11381650920114260420177/
Pid/vid definition file ---- kernel_imx \ drivers \ USB \ storage \ unusual_devs.h
After the PID vid of the USB driver is modified in the Linux Kernel of the Android device, the ADB tool may not be able to identify the device, and the prompt "
application that requires electronic monitoring and listening can be built. Baby monitors, security systems, and even seismic instruments.
Theoretically, you cannot appear in two places at the same time, but Android can use some feasible methods to achieve this. At the beginning and end of this article, you must remember. The Android devices used are not only limited to mobile phones, but also devices depl
Android is designed to run on a variety of devices. To achieve this, android provides a dynamic app framework, in this framework, you can provide specific configuration resources in dynamic files (different xml layout files with different screen sizes). android will load the appropriate resources according to the
There is a Device Manager option in security settings, Andorid, and I believe most Android users are less likely to pay attention to this stuff. Recently, after installing an application, I found the contents of this thing changed. What's going on, research and research look. Old ideas, from the most obvious clues to start analysis. "
Respect for the original, respect for the author, reproduced please indicate the source:http://blog.csdn.net/lnb333666/article/details/41821149There is no reliable way to check if there is a navigation bar on the device. You can use Keycharactermap.devicehaskey to check if there are some physical keys on the device, su
Hexdump/dev/hidraw0 can see the bare stream that the Usbhid device is transmitting.such as: Press the input key003ae60 0000 0096 8000 006b 0000 0000 0000 0000*003aea0 0000 0086 8000 0000 0000 0000 0000 0000*The previous estimate is the bitstream Head (003AE60), and press (0096), release (8000) and other information, the identification key valid information
The examples in this article describe how Android obtains device CPU cores, clock frequencies, and memory size. Share to everyone for your reference, specific as follows:
For project needs, analyze the Facebook Open source project-Device year Class.
The main function of the Device year Class
Full-chi Android device adds USB host ADK functionUSB Host ADK refers to the use of Java and device programming without USB driveThis allows Android to easily communicate with various USB peripherals without modifying the kernel and driving conditions. All the data of the CPU is
1. The display density of the device is determined by two factors: the size of the device and the resolution of the device. The larger the size of the same resolution device, the smaller the display density, the higher the resolution of the
Android provides a user-level lightweight LOG Mechanism. Its implementation runs through Java, JNI, local c/c ++ implementation, Linux kernel driver, and Other Android layers, and is simple and clear enough, it is a pretty good case. This series of articles explains the internal implementation mechanism of the LOG mech
Send NotificationsThis email will discuss how to get the Power status on your Android device and we will use the broadcast to accomplish this goal.What is Broadcastreceiver?A broadcast receiver is an Android component which allows the register for system or application event
mount path for the USB device on the Android device. Different vendors have different Android device paths.
This writing is also suitable for the SD card mount.File path = new file ("/storage/udisk");
Statfs stat = new Statfs
Set the Android device to always enable WLAN during sleepMainActivity is as follows:
Package cc. AB; import android. OS. bundle; import android. provider. settings; import android. app. activity;/*** Demo Description: * sets the
Js determines whether the current page is opened on a mobile device or on a PC. jspc
This article describes the code used by js to determine whether the current page is opened on a mobile device or on a PC. The details are as follows:
Var browser = {versions: function () {var u = navigator. userAgent, app = navigator.
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.