new cheap android phones

We have already said 1 million times: Everything Android offers you is a choice. Thanks to the openness of the platform, Google's operating system has developed rapidly. Every month, new Android devices are surging, And neither sales nor user data shows any signs of slowing down growth. Now, choosing is a good thing. Although some companies still advocate le

Mobile Payment: Smart IC card for NFC communication with Android mobile phones; androidnfc This article from http://blog.csdn.net/hellogv/, reference must indicate the source! Currently, the common smart IC Card runs the JavaCard virtual machine, and the smart IC card can run the card application (Applet) compiled by the simplified Java language ). The Applet of the Smart IC card cannot be started by itself

= Sf.getblockcount ();Back to SD card sizereturn allblocks * blockSize; Unit byteReturn (Allblocks * blockSize)/1024; Units kbReturn (Allblocks * blockSize)/1024/1024;}/*** Determine if the current memory card is available* @param mcontext* @return*/public static Final Boolean isexist (String sdpath) {arraylistfor (int i = 0; i if (List.contains (Sdpath)) {return true;}}return false;}}the method of obtaining the external SD card (TF card) of Android

? Other mobile phones may be powerless, but powerful android phones can share files with computers through WIFI. android phones have WIFI functions, and most laptops and computers now have self-carried WIFI functions, wifi is fast and easy to use. Let's talk about how to sha

Summary on setting up data synchronization between mobile phones and watches in Android Summary of Android Wear Data Synchronization Mechanism After a Bluetooth connection is established between the mobile phone and the watch, data can be transmitted through Google Play Service. Data Item DataItem provides automatic synchronization between mobile phone and watch

an interface for getting information, we can parse the arguments by using the ToString method.Code implementationWe know that using the ToString method of the Signalstrength class can take out the parameters we need, so how do we use the Signalstrength class? I posted my code for reference:TelephonyManager tm =(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE); new PhoneStateListener() { publicvoidonSignalStrengthsChanged(SignalS

Abstract: After configuring the development environment, this article will introduce how to develop the first Hello World Program for Android phones. This article will introduce two methods, one is to develop through code, it is developed by configuring the xml file describing Layout. The latter is actually the control design interface in Visual Studio, but it is not convenient to use Visual Studio. This is

Android custom View to display the upload progress of images (similar to the QQ upload result of mobile phones) First, let's take a look at the effect we want to achieve (the effect when sending images in QQ chat ): Let's take a look at my implementation results: 1. The effect has been seen. Let's implement it. First, I create an android project ProgressImageV

is at least 2 * DPI, 4.65 inches, and the 630 P resolution of Galaxy Nexus is 315ppi. The width should be at least 720, while the P width is exactly the same. After calculation, large is 3 * DPI in width, and Galaxy Nexus cannot meet the requirements. Most of the products that meet the requirements are 7-inch + tablets. For mobile phones, if the aspect ratio is the same, you only need to write the normal layout. In addition, as mentioned in the previ

Build the I-jetty environment on Android devices-web servers on mobile phones, androidi-jetty This article mainly shares with you how to build an Android device into a web server. 　　Compile I-jetty 1. download the source code, http://code.google.com/p/i-jetty/downloads/list 2. decompress the file, enter the directory where pom. xml is located, and execute the com

Android mobile phones and computers transmit data based on WiFi. Technically speaking, there are two main solutions: One is implemented through the FTP protocol, and the Android mobile phone is used as the FTP server during data transmission; One is implemented through HTTP. Android

problem! For example, easymoney or moneywise! 6. saving money on groceries We have found a comprehensive application that saves you money on groceries. This application is called Grocery IQ. If something in your house is used up, you can use Grocery IQ to scan the bar code of the item and include it in your debris list! Most importantly, Grocery IQ can remember your various discount cards and coupons so that you will not miss out on these shopping opportunities! 7. Add

In the Android system, the Master Key vulnerability is the most common one. Hackers can use this vulnerability to remotely control users' Android systems and their devices. In previous versions of Android, the Master Key vulnerability has appeared. Now, a new variant vulnerability appears in the latest

Summary of reading and writing methods for files in the memory of Android phones Summary of reading and writing methods for files in the memory of Android phones This article describes how to read and write files in the memory of Android

Android provides the audiorecord and mediarecorder functions for recording. audiorecord is an audio stream that reads MIC data and can analyze stream data while recording; mediarecorder can directly store the MIC data to a file and encode the data (such as AMR and MP3 ). First, add your application to the permission (whether you are using audiorecord or mediarecorder ): Then, we will introduce the usage of the two separately. 《! -- Audiorecord --" 1.

from Google's successful experience. He said: "The Price of Ubuntu mobile phones is between $200 and $400, which is a mid-range product. Android was initially not designed and built for your personal computer. Although we started a little late, this has also become a huge advantage for us, so that we can have enough experience to learn from before doing a thing, and then firmly walk out of our own path."

= 2048*1152;Wuxga = 1920*1200;Txga = 1920*1400;Qxga = 2048*1536;Wqhd = 2560*1440;Wqxga = 2560*1600;Qsxga = 2560*2048;Qsxgaplus = 2800*2100;Wqsxga = 3200*2048;Quxga = 3200*2400;Optional Hd = 3840*2160;Wquxga = 3840*2400;Hd4k = 4096*2304;Hxga = 4096*3072;Whxga = 5120*3200;Hsxga = 5120*4096;Whsxga = 6400*4096;Huxga = 6400*4800;SHV = 7680*4320;Whuxga = 7680*4800; For Android games to adapt to high-resolution tablets, you can consider a mandatory absolute

and sends the message to the server, which is then encapsulated to send the messages to ClientSocket2.3. Realization of two mobile-phone communication clientsClient run ( Note: Here is an entire picture, which is an image ):The above-mentioned operation results in the communication of two Android machines. Two clients are assigned IDs 0 and 1, respectively. You need to specify the arrival party of the message when you send the message.3.1 Client Send

screen status broadcast receiver */private void startScreenBroadcastReceiver () {IntentFilter filter = new IntentFilter (); filter. addAction (Intent. ACTION_SCREEN_ON); filter. addAction (Intent. ACTION_SCREEN_OFF); filter. addAction (Intent. ACTION_USER_PRESENT); mContext. registerReceiver (mScreenReceiver, filter );} Because the user can set whether the screen is locked after it is disabled, we cannot track the unlock event to determine its statu

Exercise caution when developing a UDP data transmission system between Android phones TIPS:1. The communication between mobile UDP and a fixed IP is not a big problem, but it may also cause a slight packet loss. The problem cannot be found here. Do you think there are special considerations for UDP implementation at the android network layer.2. UDP communication