how to locate android cell phone

Recently a quick look at the sensors of the Android system. The more commonly used is the accelerometer accelerometer, which can be used to achieve "shake a shake."At first, the accelerometer is the name itself to understand, that is, the measurement of acceleration, that is, if the phone is still, the accelerometer should return 0.It turns out that the external support of the

disadvantages. In fact, everyone together in September released a new machine, rather than to fight for the market opportunity. The current mobile phone market from the system is the battle between iOS and Android, from the brand is actually the battle between Apple and Samsung. Samsung and Apple have taken more than 90% of their profit margins in the smartphone market, so who would be stupid enough to pos

Accessing a null pointer object Access Invalid pointer object Iterator access out of bounds Memory leaks Parameter error Stack Overflow Type conversion Error Number except 0 error What information can we get when the NDK error occurs?When developing native applications with the Android NDK, almost all programmers have experienced program crashes, but its crash will print a stack of seemingly heavenly b

) This.findviewbyid (R.ID.TV1); if (location = null) {Double latitude = location.getlatitude (); Double Longitude=location.getlongitude (); Tv1.settext (dimensions: + latitude+ \ n longitude +longitude); } else {Tv1.settext (Unable to obtain geographic information); } } (2) Android base station positioning: Android Base station positioning as lon

developers locate the problem.Stack information escalated from the user's phone, Testin provides a symbolic function for the NDK crash, as long as the so file containing the symbol table generated during our compilation is uploaded, the function pointer address can be automatically positioned to the function name and the number of lines of code. Once symbolized, it looks the same as the results we had in t

PHP/** * Present company in use, not perfect place to look forward to*/classFromphoneorpc {//Judging from a computer or cell phone Public functionJudgefrom () {$uAgent=$_server[' Http_user_agent ']; $hAccept=$_server[' Http_accept ']; $osPat= "mozilla|m3gate|winwap|openwave| Windows nt| Windows 3.1|95| blackcomb|98| me| X window|ubuntu| longhorn| Aix| amigaos| beos| Hp-ux| openbsd| freebsd| netbsd| os\/

From: http://bbs.dospy.com/thread-6036281-1-1.html Our commonly used mobile phone screen uses the same LCD screen as the notebook, the resolution of the LCD screen is fixed, each point is a pixel. In addition, the cell phone resolution does not refer to the screen size, and it can be said that it has nothing to do with the screen size.For example, a 2.1 inch

Record the personal mobile phone (ios+android) grasp the package of learning process, write relatively humble, the network also has a lot of big guys write the use of documents, if there is similar, purely personal learning records. The Fiddler tool is good for personal use compared to other similar tools, and is recommended for use.1. Install Fiddler installed on the computer, Baidu search "Fiddler". Enter

pixels, for devices with true pixel densities equal to logical values on pixel density levels, 1DP = 1/160 inch, for devices not equal to logical values, such as the second device in the table above, 180.27! = 160 This difference Android The operating system is scaled to compensate. For example, in this device to use the 160DP to the end of the actual number of pixels on the screen, which actually went through 2 steps: In the DP progr

1.USB line connection phone, input command $ lsusbBus 004 Device 002:id 8087:8000 Intel Corp bus 004 device 001:id 1d6b:0002 Linux Foundation 2.0 root Hubbus 003 Device 002:id 8087:8008 Intel Corp Bus 003 Device 001:id 1d6b:0002 Linux Foundation 2.0 root hubbus 002 Device 001:id 1d6b:00 The Linux Foundation 3.0 root Hubbus 001 device 015:id 2b0e:1768 Bus 001 device 003:id 046d:c31c Logitech, Inc. Keybo ARD K120 for Businessbus 001 device 002:id 1bcf:

Verification Code countdown helps implement CountDownButtonHelper and cell phone Verification Code countdown Reprinted please indicate the source: http://blog.csdn.net/zhaokaiqiang1992 When we do the text message verification code function, in order to prevent users from endlessly obtaining the text message verification code, or misoperation, the verification code is messy, we generally add the countdown fu

algorithm invented by RSA, and the non-reversible encryption Standard SHS (Secure hash standards, secure hash information standard) recommended by the U.S. National Standards Bureau. Basically it is:Display memory = Storage Memorystore memory encryption is saved in the validation variable. just before each display/use of memory, you control the encryption and validation variables, so that it can be very easy to find whether memory is changed, should take measures and so on. if (MD5 (index). Equ

priority, GPS is used for positioning first. If GPS positioning is not enabled or there is no available location information, and the network connection is normal, the positioning SDK returns the optimal result of Network Positioning (that is, Wi-Fi and base station. To make the obtained Network Positioning results more accurate, turn on the Wi-Fi switch of your mobile phone.The following two classes are used: MyLocationOverlay and PopupOverlay.1. Import the warehouse receiving FileBefore using

/** Smartphone browser version information:**/var browser = {Versions:function () {var u = navigator.useragent, app = Navigator.appversion;return {//Mobile terminal browser version informationTrident:u.indexof (' Trident ') >-1,//ie corePresto:u.indexof (' presto ') >-1,//opera coreWebkit:u.indexof (' AppleWebKit ') >-1,//Apple, Google kernelGecko:u.indexof (' Gecko ') >-1 u.indexof (' khtml ') = =-1,//Firefox kernelMobile:!! U.match (/applewebkit.*mobile.*/)|| !! U.match (/applewebkit/),//Whet

We go online search Android positioning location NULL can not locate the problem, it is estimated that a large pile of articles on how to solve, but finally we found that the basic useless. This article will be based on the Android positioning principle to in-depth analysis of the reasons can not locate and propose a r

This plugin uses the location function provided by Baidu Map to locate the mobile phone on the Android version.Why is there no iOS version?Because the iOS version has the official locator plugin cordova-plugin-geolocation can be used.Please refer to: cordova-plugin-geolocationWhy not use the official Cordova-plugin-geolocation plugin for the

Android commonly used three positioning methods are: based on GPS positioning, base station status, based on WiFi location. 1, based on GPS positioning:GPS positioning needs GPS module (hardware) support, no GPS module is unable to GPS positioning.GPS positioning the biggest advantage is its high positioning accuracy (general error in 10m), No network can also be used ; The disadvantage is high power consumption, slow positioning, indoor and basement

. Id. system_memory );TV. settext ("total cell phone memory:" + this. gettotalmemory () + "," + "available memory :"+ This. getavailmemory ());}} 3. Running result The success is that the total memory and current available memory of the Android mobile phone are successfully read. This is just an example. You can expan

Recommended reading: An analysis of Android phone defender SIM card binding An in-depth analysis of the Android phone defender MD5 encryption when saving passwords Detailed Android Phone Guardian Settings Wizard page An analys

Everyone in the process of using Android phone, will inevitably encounter the situation of mobile phone format, if you do not have to format the phone, then you need to look at this article, this article for everyone to tidy up the Android