sandisk sd card problem

offset calculation problem, which is depressing, but it seems that I have found a reasonable explanation on the Internet. I sincerely hope someone can help me solve this problem, this problem has also plagued me for a long time. I did not find the answer through printing information, single-step debugging, winhex observation content, and I do not know whether th

This article illustrates how Android obtains the SD card path and SDcard memory. Share to everyone for your reference. The specific analysis is as follows: Yesterday in studying the problem of the storage path breakthrough after the photo shoot, the beginning of the storage path is written to death: private String folder = "/sdcard/dcim/camera/" (Image storage p

For example, this requirement is not a complicated process, but there are some hidden risks. I recently encountered this problem in the project, I made a small research on Android's image acquisition through a camera or album and finally displayed on the interface. Now I will describe some results and the attached demo as follows: Anyone who has done similar requirements knows that the camera can be started through the following code in the activity,

-compile and download the kernel, especially in the program debugging stage, we all want to put the application on the SD card, so it is easier to update it. It is said that the third method can be used to achieve this, modify the "launch80" = "myapp.exe" to "launch80" = "/stdcard/myapp.exe" (volume file. Similarly, applications in the SD

After the source code of 2.3 is downloaded and compiled, the boot simulator usually does not have a storage card (SD card) mounted, which leads to a problem: many tests that require the SD card cannot be done, for example, you wan

Note: Some software can not be installed in the SD card, while some applications are installed in the SD card some data it is still cached in the phone, the problem may be to improve the performance of the application done, but the amount of data will not be very large. 1.

When you use MediaPlayer to play a local Mp3 file , you need to be aware of the problem with access paths and access permissions .1. Access path:/storage/emulated/0 This path is the root path of the phone, you can download the es file browser software to view the current playing MP3 specific path, through Environment.getexternalstoragedirectory (). GetPath () gets /storage/emulated/0 This sdcard path This in the organization void Android.media.M

Recently, when working on the andoird project, we often encounter different machine models on the client side, resulting inProgramThere is a bug problem, and we cannot locate the exact location of this bug (because there is no log file ). So I found the relevant information about writing program logs to the SD card, just like the Web log4j, to generate a log fi

In the need of storage, the problem of the path is more confusing for beginners, the following is for Getcachedir (), Getfilesdir (), Getexternalfilesdir (), Getexternalcachedir () Some of the experience, Only for the reference of the Si-mi ...Preferred, need to be clear is the path of the respective representative where the specific locationGetcachedir () Path:/data/data/App package name/cache/directoryGetfilesdir () Path:/data/data/App package name/

SD card mounting File System: VFS: Cannot open root device "mmcblk0p2" solves the problem of using the initramfs file system. linux can run properly and read and write SD cards normally. However, it cannot be mounted when it is mounted on the SD

When we do Android development, we often have this experience, because the customer's device models are different, resulting in a variety of problems, but for developers, because there is no log log files, it is not easy to locate the exact location of the problem. So we need a tool that can write the program log to the SD card file, like the Web log4j. At this t

A teammate's SD card, which was used on his mobile phone, was suddenly unavailable after several TXT e-books were imported into the computer. The symptoms were unrecognizable. On the PC, the card reader shows "Windows prompts formatting, but cannot complete formatting". After the attribute is displayed, the file system type is raw. At first, I wanted to solve th

The first few days encountered a problem: Save the image to the SD card in the Android development app, and the user searched in the gallery, similar to the form of the cache. The first idea is to change the suffix name, for example, to save a picture as Image1.txt, so save of course no problem, but in the application

Recently, many people have seen that livesuit (phoenixsuit) is not easy to use, and it is difficult to use the SD card to brush the system.There is a new idea, similar to berryboot, but not the same.First, use the TTL line or android virtual terminal program to run a shell.Shell will automatically detect the network, then download a small startup file (busybox is used for rootfs of course), and then automat

1, because the simulator must be installed under the system disk, so the default SD card file is also stored in the C disk, then the expansion of capacity will inevitably lead to the reduction of C disk space, which is usually intolerable to users, so you also need to transfer it to the hard disk of other more free partitions, The following functions can be used to facilitate the implementation of the Force

in Linux we often use U disk, SD card mount problem, each time manually mount or uninstall is very troublesome, we can take the following methods to achieve automatic mount or uninstall U disk, SD card 1, first in the/ETC/INIT.D/RSC to add the following statement Echo/sbin/m

Android newest mobile phone internal storage size, SD card storage size Method We used to obtain this information in the past. // Before Android API18: fs. getAvailableBlocks () * fs. getBlockSize () Currently: /** Obtain available system memory **/@ SuppressLint ("NewApi") private String getMemFree () {StatFs fs = new StatFs (Environment. getDataDirectory (). getPath (); return Formatter. for

Hello, could you ask me a question? I recently called a 6410 board and wanted to start it from the SD card. The card Detect of the SD card was detected, but the clock didn't get up, I don't know what the problem is. Now I only gen

You cannot start the file system from the SD card-Linux general technology-Linux technology and application information. The following is a detailed description. I am using the vm7 virtual machine, the source code is linux-2.6.18, make a file system to start from the SD card. The ext3 item is added to the kernel, but t

Suppose the SD card folder is in/mnt/sdcard when Google comes with a simulator or a real machine debug. This is a belief that we all know.but today when debugging with Genymotion. found that the/mnt/sdcard not open the folder, at that time did not pay attention to other information. Think it is the ADB, eclipse what the problem, after restarting them still can't