how to transfer android data to sd card

Discover how to transfer android data to sd card, include the articles, news, trends, analysis and practical advice about how to transfer android data to sd card on alibabacloud.com

Android get thumbnail images and videos on SD card

Need to quickly extract pictures and video thumbnails to directly access Android.provider.MediaStore.Images.Thumbnails And android.provider.MediaStore.Video.Thumbnails These two databases, you can query the thumbnail. How do you judge a document? You can traverse the database by cursor, comparing the value of the Internal_content_uri field, which is a URI that holds the full path to the multimedia file on the Android phone's

Android SD card Image Browsing

In activityaction, there is a "action_get_content" String constant, which allows users to select a specific type of data and return the URI of the data. we can use this constant and set the type to "image/*" to obtain all images in the Android mobile phone. Main. xml: Android: Orientation = "vertical"

Android read, write pictures to sd card source code

/** * Save Bitmap to a file. Saves the picture to the SD card. * * @param bitmap * @param file * @return error message if the saving is failed. Null if the saving is * successful. * @throws IOException */public static void Savebitmaptofile (Bitmap Bitmap, String _file) throws Ioexcep tion {//_file = /** * Get SDK Path * @return */public static String Getsdpath () { File sddir = null; Boole

Android SD card Read Simple operation

Read event binding Listener Read.setonclicklistener (new Onclicklistener () {public void OnClick (View v) {edit2.settext (read ());}});} Public String Read () {if (Environment.getexternalstoragestate (). Equals (environment.media_mounted)) {File Sdcarddir = Environment.getexternalstoragedirectory (); try {fileinputstream fis = new FileInputStream (sdcarddir.getcanonicalpath () + file_name); BufferedReader br = new BufferedReader (new InputStreamReader (FIS)); StringBuilder sb = new StringBuilde

Android's simplest SD card file traversal program

Package Com.wenhao.test.sddemo;import Java.io.file;import android.app.activity;import android.os.Bundle;import Android.os.environment;import Android.view.view;import Android.view.view.onclicklistener;import Android.widget.button;import Android.widget.Toast; Public classMaindemo extends Activity {/** Called when the activity is first created.*/ PrivateButton Button =NULL; PrivateFile Path; @Override Public voidonCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);

The simplest SD card file to traverse the Android program _android

This example for you to share the simplest SD card file traversal procedures for your reference, the specific content as follows Package Com.wenhao.test.sddemo; Import Java.io.File; Import android.app.Activity; Import Android.os.Bundle; Import android.os.Environment; Import Android.view.View; Import Android.view.View.OnClickListener; Import Android.widget.Button; Import Android.widget.Toast; The pu

Data Dog recovery SD card mistakenly deleted photo Tutorial

Step one: Turn on your computer's data-dog data recovery software, enter the main interface of the software, select the "delete recovery" mode, as shown in the following figure. The second step: in the Region 1 selected SD card, click on the Region 2 key to enter the d

Android Delete SD card file

-- --Delete a fileFileName = "/sdcard/myimage/" + image;Remove the SD card folderSD Card write: http://blog.csdn.net/zhaoyazhi2129/article/details/8994295Android Delete SD card file

"Android" view the SD card directory of the Genymotion emulator in Eclipse

If you use Google's own simulator or the real machine debugging, the SD card directory is/mnt/sdcard. This is a belief that we all know.but today with Genymotion debugging, found at all not open/mnt/sdcard This directory, at that time also did not pay attention to other information, think is adb, eclipse what problem, After restarting them still can't open, after a struggle, found an important clue! Oh, it

Android development simulated use of SD card

If you want to use SD card during development, you must specify There are two ways to create an SD card. One is to directly enter the size to be created and the ADT is automatically created. The other is the image file of the specified sdcard. Use the mksdcard.exe tool in sdkto create an image file for sdcard. For

android resolves the apk file on SD card

public void parseapk (context context, String Apkfilepath) { Packagemanager Packagemanager = Context.getpackagemanager (); PackageInfo PackageInfo = Packagemanager.getpackagearchiveinfo (Apkfilepath, 0 ); if (PackageInfo! = null ) {packageInfo.applicationInfo.sourceDir = Apkfilepath; PackageInfo.applicationInfo.publicSourceDir = Apkfilepath; String name = PackageInfo.applicationInfo.loadLabel (Packagemanager). toString (); String PackageName = packageinfo.pa

Android device memory and SD card Operation Tool Class

Package Cc.c;import Java.io.file;import Java.util.list;import android.os.statfs;import java.io.FileReader;import Java.io.ioexception;import Java.io.bufferedreader;import Android.os.environment;import Android.content.Context; Import Android.app.activitymanager;import Android.app.activitymanager.memoryinfo;import Android.app.activitymanager.runningappprocessinfo;public class Storageutil {private static final int ERROR = -1;public static int save_dir = 1;//Determine if

Android gets the APK file on the SD card and determines whether the APK file has been installed and can be updated to the new version.

The following is a tool class. It uses recursion to scan the APK file on the SD card to determine whether the application has been installed on the mobile phone. If so, it determines whether the application can be upgraded. DetailsCodeAs follows: /*** Obtain the APK File Information class on the mobile phone, mainly to determine whether or not to install it on the mobile phone, the installed version

Android program functions copy files under the Assets folder to your phone's SD card (including subfolders)

+ "/" +filename,dir+filename+ "/");}Continue}File OutFile = new file (Mworkingpath, fileName);if (Outfile.exists ())Outfile.delete ();InputStream in =null;if (0!=assetdir.length ())in = Getassets (). Open (assetdir+ "/" +filename);Elsein = Getassets (). open (FileName);OutputStream out = new FileOutputStream (outFile); Business Account RecoveryTransfer bytes frombyte[] buf = new byte[1024];int Len;while (len = In.read (buf)) > 0){Out.write (buf, 0, Len);}In.close ();Out.close ();}catch (FileNotF

Android: display the SD card file list

Read the SD card file information and add it to the listview to display it: Listview obtains the information of the SD FileCode: List Draw different images based on filetype:

Android get SD card Total capacity, usable size, total body memory capacity and available size

Public long getsdtotalsize () {/* Gets the memory card path */File sdcarddir= environment.getexternalstoragedirectory (); /*statfs See File system space Usage */StatFs statfs=new StatFs (Sdcarddir.getpath ()); Long blocksize= Statfs.getblocksizelong (); Long Totalsize=statfs.getblockcountlong (); return blocksize*totalsize;} /** * Get the remaining capacity of SD

Android read local (SD card) picture

Private Bitmap Getdiskbitmap (String pathstring) {NBSP;NBSP; bitmapbitmap=null ;NBSP;NBSP; try NBSP;NBSP; NBSP;NBSP;NBSP;NBSP;{NBSP;NBSP; filefile=new file (pathstring); if (file.exists ()) { Bitmap = Bitmapfactory.decodefile (pathstring); NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;}NBSP;NBSP; }catch (exceptione) NBSP;NBSP;NBSP;NBSP;{NBSP;NBSP; //todo:handleexception NBSP;NBSP; } r

Android removes cached images and directories from SD card or phone

public static final String temp_photo_file_name = "Temp_photo.jpg";private static String Msdrootpath = Environment.getexternalstoragedirectory (). GetPath (); /** * Delete cached images and directories for SD card or phone * /public void DeleteFile () { log.i ("INFO", msdrootpath+ "/" +temp_photo_file _name+ "========================"); File Dirfile = new file (msdrootpath+ "/"

How to record background logs and write files to the SD card on Android

. Propertyconfigurator. getconfigurator (this). Configure (); 4. Put the microlog. properties file in the assets folder. Note: The assets folder is the same as the res folder. Then change the microlog. properties file to the following: Microlog. Level = debugMicrolog. appender = logcatappender; fileappenderMicrolog. formatter = patternformatterMicrolog. formatter. patternformatter. pattern = % C [% P] % m % t 5. Write log records Logger. debug ("My debug "); 6. Add

Microlog4android allows you to record the android program log on the SD card

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. properties file in the assets folder. Note: Th

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