how to read json file in android

An example of this article describes the Android programming method for file read and write on SD card. Share to everyone for your reference, specific as follows: A lot of knowledge can be extrapolate only after you have a real understanding of mastery. Java in the file operation and the

The following is a summary of how to read and write files in Android. For more information, see 1. Get the file from the raw folder in the resource and read the data (the resource file can only be read but cannot be written) Copy

()); } }); } PrivateString Read () {Try { //Open File input streamFileInputStream FIS =Openfileinput (file_name); byte[] Buff =New byte[1024]; intHasread = 0; StringBuilder SB=NewStringBuilder (""); //Read File contents while((Hasread = Fis.read (buff)) > 0) {sb.append (N

length = in.available (); byte [] buffer = new Byte[length]; In.read (buffer); res = encodingutils.getstring (buffer, "UTF-8"); }catch (Exception e) { E.printstacktrace (); } third, from the SDcard to read the file, first of all to the file through the \android-sdk-windows\tools\adb.exe of the loca

available for the program to use Long Navailablock = Statfs.getavailableblocks (); //Get the number of all remaining blocks (including block that is not available for General program reservation) Long Nfreeblock = Statfs.getfreeblocks (); //Calculate SDcard Total capacity MB Long nsdtotalsize = ntotalblocks * Nblocsize/ 1024x768/ 1024; //Calculate sdcard remaining size MB Long nsdfreesize = Navailablock * Nblocsize/ 1024x768/ 1024; }//end of If End of Func Reprin

Recently learning and using the Cocos2d-x framework, although speaking of cross-platform, but in the Development of Vs, and then transplanted to Android or IOS, may also have a variety of problems, minor adjustments are required. For example, when I perform file read/write operations, it is likely that there is no problem on Win32, but get data failed on IOS.

/PlayAudioByWWW.csSummary of myWe know that when using www loading assetbundle, it is not possible to have Chinese name and Chinese path , but the method used above, why the Chinese file can be loaded and played properly?The above is simply loading the file via WWW, and the loaded file is not in Unity's assetbundle format, so the notation is not the same as loadi

written by another application; If you want the file to be read and written by another application: Incoming (context.mode_readable+context.mode_writeable)FileOutputStream OutStream = Context.openfileoutput (filename,context.mode_private); Example Write Datapublic void WriteFile (String filename,string writestr{try{ FileOutputStream fout =openfileoutput (FileName, mode_private); byte [] bytes = Writestr.ge

geo:0,0?q=beijing Start Web page Am START-A android.intent.action.view-d http://www.aizheke.com Call Am start-a android.intent.action.call-d tel:88888888 Start service Am Startservice-n cn.qylk/.service. LocalService Viewing log information logcat-s [tag name] "Log to File:-F [filename]" Viewing device ADB devices into shell Adb-s emulator-5554 Shell Device serial number ADB Get-serialno Shortcuts Ln-s Reboot [-n] [-P] [Rebootcommand] -N: Do not

When it comes to Android applications, the database is inevitably used. But when we deploy the app's apk to the real machine, the database that has been created and the data inside it cannot be installed on the real machine with the APK.(PS: This blog has overcome a problem with a small game written in my previous blog.) Also able to read the database files under the raw folder)This creates a problem. This

File read/write using the android sub-functionCreate an Android project.1 LayoutFirst look: Open main. xml and modify the content as follows: Binary definition string Open strings. xml and add the following content:

Scan=NULL;//Scan Input Try{Scan=NewScanner (NewFileInputStream (file));//Instantiate scanner while(Scan.hasnext ()) {//Loop Read This. Msg.append (Scan.next () +"") ; Set Text } } Catch(Exception e) {e.printstacktrace (); } finally { if(Scan! =NULL) {scan.close (); //Close the print stream } }

Recently learning and using the Cocos2d-x framework, although speaking of cross-platform, but in the Development of VS, and then transplanted to android or IOS, may also have a variety of problems, minor adjustments are required. For example, when I perform file read/write operations, it is likely that there is no problem on win32, but Get Data Failed on IOS. Aft

1. Create the Assets folder and the Res/raw folder separately: (Note that the raw file is new under Res, and then create a folder with the name Raw)2. Create two txt files and copy them to the asset and raw folders:3. The effect of the implementation:4. Implementation code:(1) Layout file:1 XML version= "1.0" encoding= "Utf-8"?>2 LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/

How can I make sdcard have the read and write permissions together? ------------------------------- Other questions -----------------------------InProgramTo access sdcard, you need to apply for the permission to access sdcard.The permission to access sdcard in androidmanifest. XML is as follows:------------------------------- More about sdcard -------------------------Why sdcard?In Android, image download

at the detailed requirements.2. The code implementation algorithm can be optimized.3.xml file structure can be optimized, this is the resources that iOS directly to me. But looked very without words, city.xml less, directly manually changed a bit, Area.xml file is more, there is no change.Suggestions:This blog is just to provide you with a realization of the idea, we are not good copy, the best according t

(environment.media_mounted)) { //get the storage directory for the SD cardFile Sdcarddir =environment.getexternalstoragedirectory (); //gets the input stream corresponding to the specified fileFileInputStream FIS =NewFileInputStream (Sdcarddir.getcanonicalpath ()+file_name); //wraps the specified input stream into BufferedReaderBufferedReader br =NewBufferedReader (NewInputStreamReader (FIS)); StringBuilder SB=NewStringBuilder (""); String Line=NULL; //looping through the contents of a

There are two ways to read and write Android files one is to txt file as resource file on or res/asset raw files can be passed r.raw.filename obtained, asset files can be passed assetmanageram=getassets (); Am.open ( " FileName "); The second method reads and writes files from the SD card so that t

Android process: inputstream-inputstremrreader-bufferedreader-string;where InputStream inputstream=getresources (). Openrawresource (R.raw.abc);//abc as txt file under Res/raw fileJava read external TXT filenewInputStreamReader( newFileInputStream(file),encoding);//考虑到编码格式 Public String getString (InputStream InputStre

Under the Android platform, in addition to the files in the application's private folder, you can also get input stream read data from the resource files and Assets, which are placed in the application's Res/raw directory and Assets directory, respectively. These files are packaged together with other files at compile time.It is important to note that files from resources and assets can only be