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POUsing SharedPreferences to store state of checkbox within a listview
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  1. POUsing SharedPreferences to store state of checkbox within a listview
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    copied!<p>How would I use shared preferences to store the state of my checkbox for the next time the app is opened? I'm using a custom adapter so am guessing it has to be placed inside that but I'm not quite sure.</p> <p>My Adapter:</p> <pre><code>public class MobileArrayAdapter extends ArrayAdapter&lt;String&gt; { private final Context context; private final String[] values; private ArrayList&lt;Boolean&gt; itemChecked = new ArrayList&lt;Boolean&gt;(); public MobileArrayAdapter(Context context, String[] values) { super(context, R.layout.list_adapter, values); this.context = context; this.values = values; for (int i = 0; i &lt; this.getCount(); i++) { itemChecked.add(i, false); } } @Override public View getView(final int position, View convertView, ViewGroup parent) { View rowView = convertView; if (rowView == null) { LayoutInflater inflater = (LayoutInflater) context .getSystemService(Context.LAYOUT_INFLATER_SERVICE); rowView = inflater.inflate(R.layout.list_adapter, parent, false); } // in your code you search for the CheckBox with the id checkBox1 2 times so I assumed that you are referring to the same view. CheckBox cBox = (CheckBox) rowView.findViewById(R.id.checkBox1); cBox.setTextColor(0xFFFFFFFF); cBox.setText(values[position]); cBox.setOnCheckedChangeListener(new OnCheckedChangeListener() { public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if (isChecked) { itemChecked.set(position, true); // do some operations here } else { itemChecked.set(position, false); // do some operations here } } }); cBox.setChecked(itemChecked.get(position)); return rowView; } } </code></pre> <p>My main Activity:</p> <pre><code>public class TheKevinAndEricaBoxActivity extends Activity { /** Called when the activity is first created. */ private String[] myString; private String list; private String[] myString2; private String list2; private static final Random rgenerator = new Random(); private static final Random rgenerator2 = new Random(); MediaPlayer mp; final Context mContext = this; final Context context = this; private Button button; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Resources res = getResources(); addListenerOnButton(); myString = res.getStringArray(R.array.myArray); list = myString[rgenerator.nextInt(myString.length)]; myString2 = res.getStringArray(R.array.myArray2); list2 = myString2[rgenerator.nextInt(myString2.length)]; } public void addListenerOnButton() { final Context context2 = this; ImageButton ibg = (ImageButton) findViewById(R.id.buttongallery); ibg.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { Intent intent = new Intent(context2, App2Activity.class); startActivityForResult(intent, 0); } }); ImageButton ib = (ImageButton) findViewById(R.id.imagebutton1); ib.setOnClickListener(new OnClickListener() { @Override public void onClick(View erica) { AlertDialog.Builder b = new AlertDialog.Builder( TheKevinAndEricaBoxActivity.this); b.setMessage(myString[rgenerator.nextInt(myString.length)]); b.setTitle(R.string.title1); b.setIcon(R.drawable.menuiconerica); b.setPositiveButton("Back", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.cancel(); } }); Dialog d = b.create(); d.show(); } }); ImageButton ib2 = (ImageButton) findViewById(R.id.imagebutton2); ib2.setOnClickListener(new OnClickListener() { @Override public void onClick(View kevin) { AlertDialog.Builder b = new AlertDialog.Builder( TheKevinAndEricaBoxActivity.this); b.setMessage(myString2[rgenerator2.nextInt(myString2.length)]); b.setTitle(R.string.title2); b.setIcon(R.drawable.menuiconkevin); b.setPositiveButton("Back", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.cancel(); } }); Dialog d = b.create(); d.show(); } }); ImageButton Ib3 = (ImageButton) findViewById(R.id.imagebutton3); Ib3.setOnClickListener(new View.OnClickListener() { public void onClick(View lemonclick) { mp = MediaPlayer.create(getApplicationContext(),R.raw.lemonspeech); mp.start(); } }); button = (Button) findViewById(R.id.button01); // add button listener button.setOnClickListener(new OnClickListener() { public void onClick(View arg0) { // custom dialog final Dialog dialog = new Dialog(context); dialog.setContentView(R.layout.list); dialog.setTitle("The List"); // set the custom dialog components - text, image and button //TextView text = (TextView) dialog.findViewById(R.id.TextView01); //text.setText("Did you not read the button? :P i'm not finshed on this yet XD"); ListView listView = (ListView) findViewById(R.id.myList); String[] values = new String[] { "value1", "value2", }; MobileArrayAdapter mAdapter = new MobileArrayAdapter(getBaseContext(), values); ListView mListView = (ListView) dialog.findViewById(R.id.myList); mListView.setAdapter(mAdapter); Button dialogButton = (Button) dialog.findViewById(R.id.Button01); // if button is clicked, close the custom dialog dialogButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { dialog.dismiss(); } }); dialog.show(); } }); } } </code></pre>
 

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