android get file path from content uri

StringPostfiledata (StringUrlbyte[] data) { Try{HttpURLConnection conn= (httpurlconnection)NewURL (URL).OpenConnection (); Conn. setconnecttimeout (20 * 1000); Conn. Setrequestmethod ("POST"); Conn. Setdooutput (true);//allow external output dataConn.setrequestproperty ("Content-type", "Application/octet-stream"); Conn. Setrequestproperty ("Content-length",String. valueOf (data.length)); OutputStream

("SP", Sp. getstring ("String_key","None" ));19 //If not_exist does not exist, the returned value is "NONE" 20 Log. D ("SP", Sp. getstring ("Not_exist","None" ));21 }22 } After the code is executed, an SP. xml file is generated under the/data/COM. Test/shared_prefs directory. An application can create multiple such XML files. : The specific content of the SP. xml

Android get folder, file size in B, KB, MB, GBpublic class Filesizeutil {public static final int sizetype_b = 1;//Gets the double value of file size unit B public static final int sizety pe_kb = 2;//Gets the file size in kilobytes of double value public static final int size

Generate JKs FileEnter the path to the JKs file to be born, open the Windows command Prompt (CMD)Keytool-genkey-alias DCT -keyalg rsa-keysize 1024-keystore test2.jks -validity 365The information for this signature file can be configured in Build.gradle in the Andorid application Get the thumbprint information stored

Two Methods for android to get the file getMimeType Method 1: import java.util.Locale;private static String getSuffix(File file) { if (file == null || !file.exists() || file.isDirectory()) { return null;

Android can get the getMimeType file in two ways: androidgetmimetype Method 1: import java.util.Locale;private static String getSuffix(File file) { if (file == null || !file.exists() || file.isDirectory()) {

Sometimes, we need to invoke another XML layout file in one activity, that is, a control in an XML layout file that is not bound by this activity, and it cannot be directly Findviewbyid, or an error will point to an empty object, and it needs to be done as follows. Layoutinflater factory = Layoutinflater.from (current class. This);View layout = Factory.inflate (r.layout. You want to

Reprinted from: http://www.cnblogs.com/goldeneast/archive/2013/09/09/3309129.htmlhttp://developer.baidu.com/map/sdkandev-1.htm#.E7.AE.80.E4.BB.8B3 (this URL page, the last side, Baidu Map also provides 2 ways to obtain)Today, see (Baidu maps Android SDK 2.1.3 and later versions) of the application key inThe security code needs to be used: the value of the signing certificate SHA1.1. Use cmd (Command Line window) to enter the directory where the signat

Method 1:Import java.util.locale;private static String getsuffix (file file) { if (file = = NULL | |!file.exists () | | | file.isdire Ctory ()) { return null; } String fileName = File.getname (); if (Filename.equals ("") | | Filename.endswith (".")) { return null; } in

Get the method inside the String.xml fileTake a note here:1. In XML files such as Androidmanifest.xml and layout:android:text= "@string/resource_name"2. In the activity:Method One: This.getstring (r.string.resource_name);Method Two: Getresources (). getString (R.string.resource_name);3. In other Java files (must have context or pplication)Method One: Context.getstring (r.string.resource_name);Method Two: Application.getstring (r.string.resource_name);

networkprivate void Getnewsinfo () {Thread t = new Thread () {@Overridepublic void run () {String path = "http://192.168.1.103:8080/n Ews.xml "; try {URL url = new URL (path); HttpURLConnection conn = (httpurlconnection) url.openconnection (); Conn.setrequestmethod ("GET"); Conn.setconnecttimeout (Conn.setreadtimeout (5000);//Send an HTTP

String FilePath = "/sdcard/feijiedemo.apk"; Packagemanager Packagemanager = Getpackagemanager (); PackageInfo PackageInfo = Packagemanager.getpackagearchiveinfo (FilePath, packagemanager.get_activities); LOG.D ("name", Packageinfo.packagename); LOG.D ("UID", Packageinfo.shareduserid); LOG.D ("VName", packageinfo.versionname); LOG.D ("Code", Packageinfo.versioncode+ ""); android-get