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POunable to retrieve data from sharedpreferences using loop and arrayadapter
 

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    <p>I am trying to use SharedPreferences to store data from an ArrayList. But I am lost. I am using a for loop to retrieve the data and store it in the listview. Also when I press the button the preferences are stored.</p> <pre><code>package com.example.todolist; import java.util.ArrayList; import android.app.Activity; import android.content.SharedPreferences; import android.content.SharedPreferences.Editor; import android.os.Bundle; import android.view.KeyEvent; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.view.View.OnKeyListener; import android.view.Window; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.EditText; import android.widget.ListView; import android.widget.Toast; public class MainActivity extends Activity { ArrayList&lt;String&gt; items; ArrayAdapter&lt;String&gt; adapter; ListView l; EditText et; Button bt, bt2; Object ob; int i = 0, k = 0; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.activity_main); et = (EditText) findViewById(R.id.editText1); bt = (Button) findViewById(R.id.button1); bt2 = (Button) findViewById(R.id.button2); l = (ListView) findViewById(R.id.listView1); items = new ArrayList&lt;String&gt;(); adapter = new ArrayAdapter&lt;String&gt;(this, android.R.layout.simple_list_item_1, items); l.setAdapter(adapter); bt.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub action(); SharedPreferences prfs = getSharedPreferences("PREFS", i); Editor edit = prfs.edit(); edit.putString("" + i, et.getText().toString()); edit.putInt("counter", i); edit.commit(); et.setText(""); k = prfs.getInt("counter", 0); i = i + 1; } }); for (i = 0; i &lt; k + 1; i++) { SharedPreferences prfs = getSharedPreferences("PREFS", i); items.add(0, (String) prfs.getString("" + i, "Null")); adapter.notifyDataSetChanged(); } } private void action() { // TODO Auto-generated method stub if (!("".equals(et.getText().toString()))) { ob = et.getText().toString(); items.add(0, (String) ob); adapter.notifyDataSetChanged(); } else { Toast.makeText(getBaseContext(), "Field should not be empty!", Toast.LENGTH_LONG).show(); } } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } } </code></pre>
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