how to retrieve files from sd card

Android-system information (memory, cpu, SD card, power, Version)The total memory size of memory (ram) android is stored in the system's/proc/meminfo file. You can read this file to obtain this information: copy the code public void getTotalMemory () {String str1 = "/proc/meminfo"; String str2 = ""; try {FileReader fr = new FileReader (str1); BufferedReader localBufferedReader = new BufferedReader (fr, 8192

The specific usage is as follows: 1. Download Download the http://code.google.com/p/microlog4android/downloads/list and microlog. properties files to the microlog4android-1.0.0.jar 2. Create a logger object Private Static final logger = loggerfactory. getlogger (main. Class ); 3.ProgramThe initialization method in the oncreate method of the first activity Propertyconfigurator. getconfigurator (this). Configure (); 4. Put the microlog. pro

. uri; import android. OS. bundle; import android. provider. mediastore;/*** @ classname: androidtestactivity * @ Description: Set a background music for this activity. * @ author jogging Android * @ date 2011-11-22 04:12:00 */public class Andro Idtestactivity extends activity {private mediaplayer; private final URI musictableforsd = mediastore. audio. media. external_content_uri; private final string musictitle = mediastore. audio. audiocolumns. title; private final string musicid = mediastore.

Follow these steps to back up the photo to the SD card:1. In the standby status, click application ].2. Select my files ].3. Select [image ].4. Click Camera ].5. Click menu in the lower left corner of the screen and select all ].6. Click the "more" icon in the upper-right corner of the screen and select "Copy ].7. Select extSdCard and click paste t

1. To move the file I need to click "App" in the phone to enter.2. Then we will see the following figure, called "My file" click to enter, as shown in the following figure.3. Then we find the "Device storage" in the phone as shown in the following image.4. The following figure we found the file to be moved to the SD card, as shown in the pictures file.5. Then we go to the folder, and then click Samsung to s

Reference: Http://www.sandersdenardi.com/querying-and-removing-media-from-android-mediastore/To delete from the media table:private void Delsourcefile (final String FilePath) {Threadfactory.getnormapool (). Execute (new Runnable () {@Overridepublic void Run () {String[] Retcol = {mediastore.audio.media._id};Cursor cur = mactivity.getcontentresolver (). Query (MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,Retcol,MediaStore.MediaColumns.DATA + "= '" + FilePath + "'", null, NULL);if (cur.getcount ()

Code PackageCom.android10;ImportJava.io.File;Importjava.io.FileNotFoundException;ImportJava.io.FileOutputStream;Importjava.io.IOException;ImportJava.io.OutputStreamWriter;ImportAndroid.content.Context;Importandroid.os.Environment; Public classXstreamutil {xcallback xcallback; /*** Write XML string to SD card file *@paramContext *@paramstr XML string*/ Public voidWritetoxml (context context, String str)

= edtfilecontent. gettext (). tostring ();Try {Filecontent = service. Read (filename );Edtfilecontent. settext (filecontent );Toast. maketext (getapplicationcontext (), String. readsuccess, Toast. length_long). Show ();}Catch (exception e ){Toast. maketext (getapplicationcontext (), String. readfail + "," + E. tostring (), Toast. length_long). Show ();}}}Private final class sdwriteonclicklistener implements view. onclicklistener { Public void onclick (view v ){Fileservice service = new fileserv

Method One: Modify registry recovery Recycle Bin empty files 1, click "Start"-run, and then enter regedit (open the Registry) 2, sequentially expand: Hekey--local--machime/software/microsoft/windows/currentversion/explorer/desktop/namespace on the left blank outside click "New", Select: "PRIMARY Key", name it "645ffo40--5081--101b--9f08--00aa002f954e" and then set the key value of the "default" primary key to "Recycle Bin" on the right, and the