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This paper illustrates the method of realizing SD card reading database with Android programming. Share to everyone for your reference, specific as follows:
First add permissions to the Manifest:
Then add the method in Mainactivity:
Sqlitedatabase db; private final String Database_path = android.os.Environment. Getexte
Rnalstoragedirectory
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
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 authorized to save the settings elsewhere. You canno
HttpURLConnection Upload Method:Try to understand the differences between the two streams:InputStreamReader Read mode:1 //Create a URL object2URL url =NewURL (urlstring);3 4 //Create a HttpURLConnection5Httpurlconnetion Urlconn =(HttpURLConnection) Url.openconnecton ();6 7 //reading Data8Bufferreader buffer =NewBufferreader (NewInputStreamReader (Urlconn.getinputstream ()));9StringBuffer SB =NULL;TenString line =NULL; One while(line = Buffer.readli
We were stitching the XML file manually in the previous section, but there was a problem with that in the previous section, such as:Insert the contents of the message sbuffer.append ("I added a So in this section we use the XML serializer to stitch up the text message content.The following code is how to stitch a file with an XML serializer:public class Mainactivity extends Activity {listAs you can see, I intentionally added a body to the content of the text message.Export to query the backup fi
How to determine files? You can use Cursor to traverse the database and compare the value of the INTERNAL_CONTENT_URI field. This is a Uri, which stores the complete path of the multimedia file on the Android mobile phone SD card.
[Java]
Copy codeThe Code is as follows: Uri originalUri = MediaStore. Images. Media. EXTERNAL_CONTENT_URI;
// If it is a Video, it is
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
This article describes how to save the image resources of android Assets to the SD card. If you are interested, refer to the following:Copy codeThe Code is as follows:
Public class ReadBitmap {Public void readByte (Context c, String name, int indexInt ){Byte [] B = null;Int [] intArrat = c. getResources (). getIntArray (indexInt );Try {AssetManager am = null;Am =
The Android program function Copies files in the assets folder to the SD card (including subfolders) of the mobile phone and androidassets.
Recently, the function is to copy all files (including sub-files) in the asset folder to the specified directory. The method used is nothing more than AssetManager. However, the problem here is that both subfolders and subfol
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 ().
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