save the current data of the arraylist when closing the app and retrieve it upon returning android -


I'm new to Android, and I have an array list that stores data from user input and I Then want to save when the user closes the app and retrieves it when the user re-opens the app then my code is 

  string getInput = inputText.getText (). toString (); If (getInput) getInput.equals ("")) {toast. Make text (getBaseContext), "item may have been added previously or not, empty", toast. LNNGH_LOG). Show (); } And {addArray.add (getInput); Toast. Make text (getBaseContext), "item added", toast.lNGTH_LONG). Show (); ArrayAdapter & LT; String & gt; Adapters = new arreptopter & lt; String & gt; (Main activity. This, Android R. outout. Simple_LiLink_Item_multiplay_choice, adare); Find show = (LISTviewView) VVBIID (RID. Show.setAdapter (adapter); ((EditText) FindUBID (RID.Edit Input)) Settext ("");    
 
 
 You can use PreferenceManager;  
 Here is an example: The app is opened while saving passwords and receiving it  
  Public class SavedPreference {static last string PREF_USER_NAME = "username"; Fixed final string PREF_PASS = "password"; Static Shared References Share References (Reference CT) {Return PreferenceManager.getDefaultSharedPreferences (ct); } Public Static Zero SetUsernName (Reference CTX, String Username) {Editor Editor = Meet -Share Prices (CTX). Edit (); Editor.putString (PREF_USER_NAME, username); editor.commit (); } Public Static Zero Delete Saved References (Reference CTX) {Editor Editor = Meet -Share-Theme (CTX). Edit (); Editor.clear (); editor.commit (); } Public stable string getUserName (reference CTX) {return getSharedPreferences (ctx) .getString (PREF_USER_NAME, ""); }   
}  
 When you want to see that a certain string is saved from the execution time of the app  
 
  If (SavedPreference.getUserName (this) .length () == 0) {// string not found} and {// string found}

Comments

  1. brightwoods15 February 2019 at 11:29

    अधिकतम तीन युगल नमूना कोड ढूँढना
    Finding the maximum of three doubles

    ReplyDelete

Post a Comment

Popular posts from this blog

jasper reports - How to center align barcode using jasperreports and barcode4j -

I use iReport 5.5.0 . How to align a barcode component to the center The relevant piece of my jrxml is below & Lt; JR: Code 128 xmlns: JR = "http://jasperreports.sourceforge.net/jasperreports/components" xsi: schemaLocation = "http://jasperreports.sourceforge.net/jasperreports/components http: //jasperreports.sourceforge Purge / xsd / components.xsd "textPosition =" bottom "& gt; & Lt; Jr: codeExpression & gt; & Lt; [CDATA [$ F {number}]] & gt; & Lt; / Jr: codeExpression & gt; & Lt; / Jr: Code 128 & gt; & Lt; / componentElement & gt; "Text" itemprop = "text"> Create a style after this, it is called "barcode", like: & lt; Style name = "barcode" fontName = "Helvetica" fONTSIZE = "10" hAlign = "center" valign = "center" /> and set the property of your barcode element to "barcode".
Read more

Verilog Error: output or inout port "Q" must be connected to a structural net expression -

I get the error every time, I try to compile. I'm not sure why anyone can help is? I'm new to verilog. Module D_FF (clerk, d, reset_n, q); Input D, Clack, reset_en; Output Q; reg Q; lab4_gdl f1 (.lk (~ clk), d (d), .q.m (qm)); lab4_GDL f2 (.Clk (Clk), D (QM), .Q (Q)); Always start at @ (posedge clk, neggeous reset_n) (Reset_n == 0) Q & lt; = 0; Other questions & lt; = D; Edit End: The problem is what we are asking to do: In this section, you apply the memory / registration circuit on the AlterEdie 2 board. will do. The circuit has the following specifications: The present value of swift SW15-0 on the D2 board should be shown in four hexadecimal four sections of HEX3-0. This part of the circuit will be combination logic. To use an active-less asynchronous reset and KEY1 to use KEY0 as the clock input, you must store SW15-0in in a 16-bit register in the value The register should be enabled to have a 16-bit positive edge, which uses the embedded D flip-flo
Read more

c# - ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type already has the same primary key value -

In brief, the wrapper module is inserted during posting and the status of an entry is changed to 'modified' . Before changing the state, the state is set to 'separate', but calling attachments () causes the same error to be thrown away. I am using EF 6. Model / wrapper class public class avi model {public A is a {get; Set; } Public listing & lt; B & gt; B {received; Set; } Public cc {receipt; Set; }} Administrator edit public functioning (int? id) {if (id == null) {new HttpStatusCodeResult (HttpStatusCode.BadRequest); } If (! Conveyor Access (id.Value)) new HTTPTitus code result (HTTP status code. Forbidden); Var aViewModel = new AViewModel (); aViewModel.A = db.As.Find (id); If (aViewModel.Receipt == zero) {return HttpNotFound (); } aViewModel.b = db.Bs.Where (x => x.aid == id.Value) .Oolist (); AViewModel.Vendor = db.Cs.Where (x => x.cid == aViewModel.a.cID) .FirstOrDefault (); See Return (aViewModel); } [HTPFost] [Valid AntitiferousTeacon
Read more