android move data to sd card

position int, and then find image_id; Public voidOnitemclick (adapterviewintposition,LongArg3) {CR=Getcontentresolver (); String image_id= list.Get(position).Get("image_id"); string[] Projection={media._id, media.data}; Cursor Cursor=cr.query (Media.external_content_uri, projection, media._id+"="+ image_id,NULL,NULL); if(Cursor! =NULL) {Cursor.movetofirst (); Stringpath=cursor.getstring (Cursor.getcolumnindex (media.data)); LOG.I (Tag,path);}Else{Toast.maketext ( This,"Image doesn ' t exist!",

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.MediaPlayer.setDataSource (String path) throws

Recently, I have an i9000 Android mobile phone with 16 GB memory and no SD card. How can I download it?ProgramTo the memory and then install it? I started one program a to download another program B. The Downloaded Program B can only be saved in the installation directory of program a ("/data//"), you are not authori

Recently the company framework has just been transplanted, because the framework program to call subroutines, each subroutine is a so file, there are hundreds of, all so and apk packaging unrealistic, timely upgrade maintenance is also very troublesome. So you need to put the SD card. Consider two different ways1The/data/app-lib/package name/so file that is place

); Intentfilter.addaction (INTENT.ACTION_MEDIA_NOFS); Intentfilter.addaction (Intent.action_media_button); Intentfilter.addaction (Intent.action_media_scanner_scan_file); Intentfilter.adddatascheme ("file"); Registerreceiver (Broadcastrec, intentfilter);} Private final Broadcastreceiver Broadcastrec = new Broadcastreceiver () {@Override public void onreceive (Context Context, Intent Intent) {String action = intent.getaction (); LOG.D ("mediaaction", action); if (Action.equals

= Environment.getexternalstoragestate ();if (State.equals (environment.media_mounted)) {File root = Environment.getexternalstoragedirectory ();File TargetDir = new file (Root,super.getpackagename ());if (! Targetdir.exists ()) {Targetdir.mkdir ();}try {Oos = new ObjectOutputStream (new FileOutputStream (New File (TargetDir, "yxl.txt"));Student Student = new Student ("Xiaoming", 18);Oos.writeobject (student);Toast.maketext (Getapplication (), "Write succeeded", Toast.length_short). Show ();} cat

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

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 of reading in the not, and later did not stud

(1) Description: The operation of the file on the SD card needs to add the following permissionsCreate and delete file permissions on an SD cardPermission to write data on an SD cardThe file on the SD

Add a file directly to the SD card of the simulator in ddms. If an error occurs, the following error occurs:Failed to push xxxxx.txt on emulator-: Read-Only file system error, because your sdcard permission is insufficient and you need to create an sdcard directly. I. First create an sdcard. The name of the sdcard I created is sdcard. IMG (the name is random and ends with the name of the IMG extension)

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

/*** Method of obtaining SD information*/ Private voidGetsd () {//TODO auto-generated Method StubFile path=environment.getexternalstoragedirectory (); StatFs Stat=NewStatFs (Path.getpath ()); LongBlocksize=stat.getblocksize (); Longtotalblacks=Stat.getblockcount (); Longavailableblocks=stat.getavailableblocks (); Longtotalsize=blocksize*totalblacks; Longavailsize=availableblocks*blockSize; String Totalstr=formatter.formatfilesize (mainactivity. Thi

When you save the picture after opening gallery, some will automatically refresh you, some do not, so that the picture saved to the SD card, not in time to see in gallery, encountered this situation is best to refresh themselves. Full SD card scanning via intent.action_media_mounted: The code is as follow

Directly on the code:Package Com.example.callstatus;import Java.io.file;import Java.io.filewriter;import java.io.ioexception;import Java.io.printwriter;import Java.io.stringwriter;import Java.net.unknownhostexception;import Java.text.simpledateformat;import Java.util.date;import Android.annotation.suppresslint;import Android.os.environment;import android.util.log;/** * Android Development Debug Log Tool class [support save to

When the Android system is started, it will automatically detect the SD card files and collect music files to generate a database file. We only need to access the information in the database table to obtain the required File Code as follows: Obtain the cursor object to access the media resources in the cursor. If (cursor. moveToFirst () {do {String title = curso

Export the database in the android program to the SD card Private void copyDBToSDcrad () {String DATABASE_NAME = "database file name"; String oldPath = "data/com. packagename/databases/"+ DATABASE_NAME; String newPath = Environment. getExternalStorageDirectory () + File. separator + DATABASE_NAME; copyFile (oldPath, ne

This article for everyone in detail under the Android Read assets picture resources to save the specific implementation of SD card, interested members can refer to Ha, I hope to help you have copy code code as follows: public class Readbitmap { public void ReadByte (context C, String name, int indexint) { byte[] b = null; int[] Intarrat = C.getresources ().

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 () {S

(tag); Sb.append (": "); Sb.append (msg); Sb.append ("\ n"); Randomaccessfile RAF=NULL; Try{RAF=NewRandomaccessfile (Mlogfile, "RW"); Raf.seek (Mlogfile.length ()); Raf.write (Sb.tostring (). GetBytes ("UTF-8")); } Catch(unsupportedencodingexception e) {e.printstacktrace (); } Catch(IOException e) {e.printstacktrace (); } finally { if(RAF! =NULL) { Try{raf.close (); }