The project will occasionally use screenshots to share, so there is the following screenshot of the method ~The following SaveImage () method is to save the screen of all the contents of the current activity.private void SaveImage () {SD Card Save pathString Savepath = environment.getexternalstoragedirectory () + "/temp.png";ShowProgress ("Please Wait", "saving picture ...");Savemybitmap (Getbitmapfromrootv
installed at an offset, the SD card may become unavailable.3) In addition, if the SD card is unavailable, we can pull out the SD card to see if there is dust on the chip. If yes, clear the SD
SD card If there is no problem, in general format can solve the problem. But make a good backup of your data. If the card itself has problems, it is not read out card. This is a good job, you can add other people's cards to try. If the identification, the phone is no problem, the problem is the
1. when the mobile phone cannot recognize the SD card, we can try to format the SD card, which may be restored but the data on the SD card is lost. The specific steps are as follows: click "settings"> "storage setti
The first step, remember that we first put the cell phone SD card in the card reader and then insert the reader into the computer to display a removable disk.
Step two, okay. Now we turn on the computer "start"-"Run"-enter "CMD".
The third step, and then in the open cmd we enter "chkdsk/f #:" (#
Common methods:Method: Getdatadirectory ()Explanation: Return to File to get the Android data directory.Method: Getdownloadcachedirectory ()Explanation: Return to File to get the Android download/cache content directory.Method: getExternalStorageDirectory ()Explanation: Returns File to get the external storage directory that SDcardMethod: Getexternalstoragepublicdirectory (String type)Explanation: Returns file, takes a high-end public external memory directory to
-setting an RCA value, but the SD card is read by the value of the RCA, the above SD card initialization has described OUTREG16 (A_MSC_CLKRT (0), 1); RESP = mmc_cmd (7, 0x10, MSC_CMDAT_RESPONSE_R1, MSC_CMDAT_RESPONSE_R1); Set the new address to a valid address This will enter Tarnsport mode. Only the 7th command is se
-setting an RCA value, but the SD card is read by the value of the RCA, the above SD card initialization has described OUTREG16 (A_MSC_CLKRT (0), 1); RESP = mmc_cmd (7, 0x10, MSC_CMDAT_RESPONSE_R1, MSC_CMDAT_RESPONSE_R1); Set the new address to a valid address This will enter Tarnsport mode. Only the 7th command is se
installation disc as a USB boot driver ). When using this boot method, we can use the SD card as a conventional storage device, so there is no need to make a special installation package or network installation package, because we put the contents of the package on the SD card
software and that you should disconnect the Internet).
03
When you see the prompts, click image Recovery (free), which will help us recover the photos from the SD card. ZAR will now look for installed devices and you will need to lead them to the problematic SD card. Select the correct dis
[Description]
How to automatically install the APK on the external SD card to the memory card of the mobile phone when the mobile phone is started for the first time.
[Solution]
Design Concept:
1.Put the APK to a directory on the SD car
/********************************************************************************* @author?? Maoxiao Hu* @version? V1.0.0* @date??? Feb-2015******************************************************************************* ********************************************************************************/hardware: Ttm itop 4412 Elite TF card Software: system comes with terminal can First of all, we should be aware that TF/
To remove the SIM card and SD card from your mobile phone, follow these steps:1. Remove the back cover of the mobile phone.2. Remove the cell phone battery.3. Use your nails in the gap of the micro SD card, and use another nail to work together to hold the micro
In the mobile phone use of the process began to often have friends with the mobile phone SD card can not be formatted to read the problem, for the SD card can not be formatted to produce a lot of reasons, but many cases are some small problems, the following teach you how to solve the
debugging, you can add some debug information here to see where errors occur during initialization, and follow the corresponding response to drive the error. WhereWhile (null! = Pcurrentdevice){// Try to load devicesCsdbusdriver: sdloaddevice (pcurrentdevice );Pcurrentdevice = pcurrentdevice-> pnext;}This section is mainly used to load the client Driver Based on the information obtained above. If it is only a memory card, it will load sdmemory. dll.
only)There is a very important thing, I tried many times, ZYNQ platform is not to start, Uboot also do not output any information. This little question stuck with me for a long time, but when I washed it this morning, it occurred to me that Xilinx Vivado and the SDK were started in root, and that generating boot.bin might also have permissions issues. So....I get the board, and then in the SD card, given s
storage method:
Storage Method:Sharedpreference
Advantages: simple, convenient, and suitable for quick storage of simple data
Disadvantages: 1. The number of stored files can only be used in the same package, not between different packages!
2. By default, data is stored in the system path/data/COM. himi/. No method for storing the data on the SD card is found.
Summary: in fact, this storage method is jus
, short circuit. Next, use the oscilloscope (if not, only with a multimeter), measuring the power supply foot of the SD card seat. In general, the voltage value should be around 3.3V, if the difference is too large, may be a circuit error, or LDO power supply capacity is insufficient.
If you confirm the above two steps, then the hardware is not a big problem. The next thing to confirm is the problem with th
If using the default system management, the default is placed under the package, more worry, and after uninstalling the app will not cause data residue, but this also has a problem, such as I do a back word software, then when the user uninstalled the app, he worked hard to download the word library also lost ...So I think of the solution is to change the database path, not put under the package, put on the
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