how to transfer android data to sd card

Void copyAssets () { String [] files; Try { Files = this. getResources (). getAssets (). list (""); } Catch (IOException e1) { Return; } If (! MWorkingPath. exists ()) { If (! MWorkingPath. mkdirs ()) { New AlertDialog. Builder (this) . SetTitle (R. string. ERROR) . SetMessage (R. string. FAILED_DIR_CREATE) . SetPositiveButton (android. R. string. OK, new OnClickListener (){ @ Override Public void onClick (DialogInterface dialog, int which) { Dialog.

"Android" Android mobile app data to SDYou can specify it in the application's Menifest file, include the Android:installlocation attribute in the ... >Android:installlocation also has two additional attribute values: "Preferexternal" and "Auto", which, according to the literal meaning, may also understand what it means, or the following:If you define "preferext

Memory (RAM)The total memory size information of Android is stored in the system's/proc/meminfo file, which can be obtained by reading this file: Public voidgettotalmemory () {String str1= "/proc/meminfo"; String str2=""; Try{FileReader fr=NewFileReader (STR1); BufferedReader Localbufferedreader=NewBufferedReader (FR, 8192); while((str2 = Localbufferedreader.readline ())! =NULL) {log.i (TAG,"---" +str2); } } Catch(IOException e) {}}The opera

transfer allows complete ticketing transactions to be processed in less than a few Ms. Therefore, the user does not have to stay at the reader antenna, forming a high pass rate, reducing the bus boarding time. When trading, Mifare cards can be left in the wallet, even coins in the wallet are unaffected.Security: The focus of security is fraud prevention. Mutual random number and answer authentication, data

++; Intent Intent = new Intent (); Intent.putextra ("Com.spt.CountService.count_data", Countservice); Intent.setaction ("Com.spt.activity.CountService"); The service sends broadcast sendbroadcast (intent); }}). Start (); } @Override Public IBinder onbind (Intent Intent) {return null; } @Override public void OnDestroy () {Super.ondestroy (); Isservicerunning = false; Countservice = 0; }}Summary and questions:1.

above are the same. But it's a little more complicated to operate. To read a file created in this way, you can use the Context.openfileinput () method. In addition, you can also manipulate the files on the SD card, via the API within the standard Java.io package. However, it is important to note that the SD card i

(R.layout.second); Intent intent=getintent ()//getintent retrieves the original Intent contained in the project, assigns the retrieved Intent to a variable of Intent type Intent Bundle Intent.getextras ();//.getextras () gets additional data String str=bundle.getstring ("str") attached to intent;//getstring () Returns the value of the specified key secondtxt= (TextView) Findviewbyid (r.id.secondtxt);//TextView Display value second

The previous article on the creation and activation of activity, this one, we talk about the activity of data transmissionData transfer between activity, the main introduction here is the transfer of simple data between activity, directly with the bundle to pass the basic data