undelete sd card files

How to determine files? You can use Cursor to traverse the database and compare the value of the INTERNAL_CONTENT_URI field. This is a Uri, which stores the complete path of the multimedia file on the Android mobile phone SD card. [Java] Copy codeThe Code is as follows: Uri originalUri = MediaStore. Images. Media. EXTERNAL_CONTENT_URI; // If it is a Video, it is

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