how to clear internal storage on android

Recently in-house training for companies, mainly on instant messaging and mobile video calls, including Android and Android,ios with Ios,android and iOS, as well as mobile and PCDo not fight unprepared for the war, so carefully collated a more detailed outline, the following outline for mobile video calls,Although the content of the talk is not directly shared, b

(key). Apply (); } Public Final void Clear() {Preferences.edit (). Clear (). apply (); }Private void Checkislegal(String key) {if(Textutils.isempty (key))Throw NewIllegalArgumentException ("This parameter is Illegal,key:"+ key); }Private void checkprefversion() {Final intOldversion = Preferences.getint (Perf_name,0);if(Oldversion Since the application version upgrade does not delete the Sharedpreferences f

information we need from the returned data and display it in our own application, thus completing the call to the remote method ...Httptransportse ht=Newhttptransportse (URL); Ht.debug=true; Try{Ht.call (soap_action, envelope);Detail= (Soapobject) envelope.getresponse (); } Catch(IOException e) {//TODO auto-generated Catch blockE.printstacktrace (); } Catch(xmlpullparserexception e) {//TODO auto-generated Catch blockE.printstacktrace (); }Just like the beginning of the code, the last return is