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1: Preface:We are in the process of Android development, many of the implementation is to the remote server to take data, but not necessarily the current device must be connected to the network Ah, so at this time we are to make judgments,If there is a network, then go to the remote server to get data, if there is no network, give users a small warm hint, at the same time for the user's experience friendly,
This article refers to the blog: http://blog.csdn.net/aurorayqz/article/details/65705300. Here are my actual actions.1. Using Android Device Monitor to view the Data folder under the File Explorer directory, the result is blank. This problem is caused by the incorrect Linux permissions on the Data folder.Workaround: Run-"cmd-" Input: adb shell-"input: Su-" input: chmod 777/data-Input: chmod 777/data/data an
If you select "Use same device for future launches" for Android App debugging in Eclipse, you will no longer be able to select other devices. androidlaunches After a vendor's multimedia control App is so bad, I want to do it in minutes. Of course, it is hard to do it. We are confident that we will surpass their bad software. Various pitfalls encountered during the process, one of which is as follows: At t
the configuration class is used to describe the information on a mobile device. Sometimes our app needs to get the phone's system information and adjust our app based on the phone's information , so we need to use the Configuration class. (1) get the Configuration ObjectCall the Activity 's method to get the system's Configuration object:Configuration config = getresources (). GetConfiguration ();(2) Obtaining de
/* ********************************************************************************* * I.MX6 Android Device Node Permissions * Description: * Android is using UEVENTD to create device node, will resolve ueventd.rc and ueventd.xxx.rc two * files in the devic
I. Description of the vulnerabilityThe virus backdoor.androidos.obad.a, now known as "the strongest Android Trojan in history", uses Android Device Manager vulnerabilities to make it impossible for users to uninstall in a normal way. In fact, the vulnerability was discovered late last year. (http://safe.ijiami.cn/)Applications registered as "
S5pv210 generates several video-related device nodes under/dev/, which are /Dev/video0,/dev/video1,/dev/video2 /Dev/video14,/dev/video21,/dev/video22 Video0, video1, and video2 are closely related to Android camera/overlay Hal. The Hal layer determines the specific functions of these three devices, that is to say, the device driver layer does not define thei
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, it is simple and clear enough to explain the case. This series of articles explains the internal implementation mechanism of the LOG mechanism. This article is part 3 of this series, interpreting
Specify a debugging device for a Qt-based Android Application in Linux.Specify a debugging device for a Qt-based Android Application in Linux I recently installed Ubuntu Kylin with Chinese and foreign counterparts. Then I switched to the sogou input method, and the encoding felt much better than Microsoft's. Opening Q
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 mechanism. This article is part 4 of the series. It explains the implementation of the
/EEPROM Package, burn the firmware to the Development Board, and start the application to view the icon. Summary: The entire call process is: app One problem is that this method changes the android native API. After all, it accesses the hardware. If you want to make a general app and want to use C/C ++ to improve efficiency, you can directly develop the ndk and compile the function into library files into the app project. Another problem is hardware
Preface This chapter is about android. bluetooth. bluetoothClass. device. major, for Android Bluetooth part of Chapter translation, version for Android 2.3 r1, translation from Sun Yat-sen University "Android Club SYSU", welcome to visit their WIKI: http://www.android-wiki.n
recent version KitKat or Oracle Java 6来 compiled, so you need to download the installation OpenJDK 7Java 7:for The latest version of Android$ sudo apt-get update$ sudo apt-get install openjdk-7-jdkOptionally, update the default Java version by running:$ sudo update-alternatives --config java$ sudo update-alternatives --config javacCompile: I used the armv7-a-neon default compiler:Printconfig============================================Platform_version
source code needs OPENJDK to compile. The recent version number KitKat or Oracle Java 6来 compiled, so you need to download the installation OpenJDK 7Java 7:for The latest version of Android$ sudo apt-get update$ sudo apt-get install openjdk-7-jdkOptionally, update the default Java version by running:$ sudo update-alternatives --config java$ sudo update-alternatives --config javacCompile: I used the Armv7-a-neon default compilation inside:Printconfig=
Recently do an Android application, with Bluetooth signal control an instrument, through a Bluetooth to the serial port device, send Bluetooth signal, and then converted to serial command sent to the instrument. The Bluetooth device is as follows:How do I get this Bluetooth device when I write Java code in an
1.IDE Preparation Download Eclipse adt;http://developer.android.com/sdk/index.html from the Android Developers website After the download is complete, unzip the Adt-bundle-windows-x86_64-20140702.zip, Refer to the Android developers website to install the SDK via SDK Manager.exe packages;http://developer.android.com/sdk/installing/adding-packages.html After the installation is complete, open Eclipse and
The Device Admin example describes class Deviceadminreceiver,devicepolicymanager and Activitymanager. Class Devicepolicymanager A number of strategies for managing the definition of an Android device, mainly referring to the length of the password definition, whether the password needs to be in uppercase letters, the specification required to set passwords for l
tracking of CDMA mobile devices. The difference between the two is: the IMEI is the ID card of the mobile phone, Meid is the CDMA format (telecommunications operation) of the special identity card; the IMEI is 15 bits and Meid is 14 bits. device_idDepending on the phone device returned Imei,meid or ESN code, can be obtained according to the following code:device_idNon-mobile devices: Android
You do not need any permissions to obtain the unique ID of the Android device. Is there a unique Android device ID?I have sorted out the answer to this question, including adding another article as a supplement, which can perfectly solve this problem. Question raised by the author:Does the
After the system is reinstalled for a long time, the android SDK that was previously installed cannot start the simulator. The following solutions are available for searching on the network: Http://www.cnblogs.com/hlt1988321/archive/2010/10/17/1853736.html Android simulator error, emulator: Error: Unknown Virtual Device name cause: the default position
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