how to recover cache files on android

Android uses the path api to internally store read and write files. androidapiCopy and modify the original project Copy the previously created Project CC + CV operation To be modified:* Project name* Application package name* Re-import the R file package Next, modify the package name in the file/AndroidManifest. xml: package = "com. wuyudong. rwinrom" For simplicity, change to package = "com. wuyudong. rwi

1. Let's first look at the video or video source: SD card, mobile phone storage (such as multimedia files carried by applications in RES/raw), network. 2. for Android, there is no difference in playing various video files. The only difference may be the method of re-loading files. Let's take a look at the ways mediap

Usually we need to store large files on the phone like audio, video and so on, previously learned to use file for storage (using file operation to store); Due to the small storage space of the phone itself, this time we need to store the files in the SDcard, and today we also learned a bit on Android The method of storing and using SDcard;First, if you want to us

your phone's internal storage space98File file2 =Getfilesdir (); AboutLOG.D ("Bihu", "Internal Store file----" +File2.getpath ()); - //gets the cache directory for the internal storage space101File File3 =Getcachedir ();102LOG.D ("Bihu", "Internal storage cache Directory----" +File3.getpath ());103 }104}Main interface/read/write local file/androidmanifest.xml123 Package= "Com.example.readw

Usually we need to store on the phone for audio, video and so on large files, previously learned to use file for storage (using the file operation to store); Because of the small storage space of the phone itself, we need to store the file in SDcard, Today I also learned how to use the SDcard storage in Android; First, if you want to use SDcard for storage in your program, we have to do the following permi

Learn Android Review Java basicsBecause the project needs to refresh yesterday's article, so before clicking on an E-magazine, the way to create a new XML file is not right, because the E-magazine is different from the news, not always updated, so one update, so I need to download a copy of its RSS every day The source XML file into the project (once actually wanted to download the SD card to the phone), file naming format with time Plus magazine name

troublesome.But Google has provided us with a dedicated access to internal storage api:getfilesdir () Create a file where the user saves the user name and password //file file = new file ("Data/data/com.demo.storage/info.txt"); Getfilesdir returns a file object whose path is: data/data/com.demo.storage/files File File = new file (Getfilesdir (), "Info.txt") ;The path to the Getfiledir is under the

{ //defines a file byte output stream with the name sFileName fileoutputstream fos = openfileoutput (sfilename,0); The file bytes are input into the file character output stream outputstreamwriter outwriter = new OutputStreamWriter (FOS); Then convert the file character output stream to the cache character output flow bufferedwriter BufferedWriter = new BufferedWriter (outwriter); Use the Write method t

Writestreamtosdcard (String dirpath,string filename,inputstream input) {file file=NULL; OutputStream Output=NULL; Try { //create a directory;Createdir (Dirpath); //create a file on the created directory;File = CreateFile (dirpath+filename); Output=Newfileoutputstream (file); byte[]bt=New byte[4*1024x768]; while(Input.read (BT)!=-1) {output.write (BT); } //Refresh the cache,Output.flush (); } Catch(IOException e) {e.pr

from://http://blog.csdn.net/watt520/article/details/10099047Today, in order to figure out the cache, in accordance with other people's methods on the Internet, created a aidl file, this time found the Gen directory automatically generated Java file error, the content is some of the methods to remove the override, but after removing or error, So I think it's not about removing the override. So looking around to solve the problem, finally see a big God

=NewStringBuffer (); while(ch = is. read ())! =-1) {b.append (Char) ch); } /*Show Response on dialog*/ShowDialog (activity,true, UploadFile,"Upload Successful"+b.tostring (). Trim ()); } Catch(Exception e) {showDialog (activity,false, UploadFile,"Upload failed"+e); }finally { /*Close DataOutputStream*/ if(ds!=NULL){ Try{ds.close (); } Catch(IOException e) {e.printstacktrace (); } } if( is!=NULL) { Try {

) {b.append ((char) ch),}/* Displays response in Dialog/ShowDialog (activity,true,uploadfile, "Upload succeeded "+ b.tostring (). Trim ()); catch (Exception e) {ShowdiAlog (Activity,false,uploadfile, "upload failure" + e); }finally {/* close DataOutputStream/if (ds!=null) {try {ds.close ();} catch (IOException e) {e.printstacktrace ();}} if (Is!= null) {try {is.close ();} catch (IOException e) {e.printstacktrace ()}} if (con!= null) {Con.disconnect ();}} /* Show dialog method/private static void

Android uploads files in two ways. The first is HTTP-based httpurlconnection, and the second is TCP-based socket. The difference between the two methods is that there is a cache mechanism in the httpurlconnection when uploading. If a large file is uploaded, memory overflow occurs. If you use TCP socket to upload data, this problem will be solved. HTTP: httpurlcon