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POHow to save the state to a checked item?
 

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  1. POHow to save the state to a checked item?
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    <p>I am making an application but now I am having a problem. I want the checked boxes to remain checked no matter if I close the application or I press the back button from the device. Here is my code</p> <pre><code>package com.example.vreaucarnet; import java.util.ArrayList; import java.util.List; import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.util.Log; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.CheckBox; import android.widget.ListView; import android.widget.TextView; public class ActeA extends MainActivity2A { private ListView mainListView; private mItems[] itemss; private ArrayAdapter&lt;mItems&gt; listAdapter; ArrayList&lt;String&gt; checked = new ArrayList&lt;String&gt;(); /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.acte2a); // Find the ListView resource. mainListView = (ListView) findViewById(R.id.mainListView); // When item is tapped, toggle checked properties of CheckBox and // Planet. mainListView .setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView&lt;?&gt; parent, View item, int position, long id) { mItems planet = listAdapter.getItem(position); planet.toggleChecked(); SelectViewHolder viewHolder = (SelectViewHolder) item .getTag(); viewHolder.getCheckBox().setChecked(planet.isChecked()); } }); // Create and populate planets. itemss = (mItems[]) getLastNonConfigurationInstance(); ArrayList&lt;mItems&gt; planetList = new ArrayList&lt;mItems&gt;(); planetList.add(new mItems("DJ-Android")); planetList.add(new mItems("Android")); planetList.add(new mItems("iPhone")); planetList.add(new mItems("BlackBerry")); planetList.add(new mItems("Java")); planetList.add(new mItems("PHP")); planetList.add(new mItems(".Net")); // Set our custom array adapter as the ListView's adapter. listAdapter = new SelectArralAdapter(this, planetList); mainListView.setAdapter(listAdapter); } @Override public boolean onCreateOptionsMenu(Menu menu) { // TODO Auto-generated method stub menu.add(0, 1, Menu.NONE, "Products"); return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { // TODO Auto-generated method stub switch (item.getItemId()) { case 1: for (int i = 0; i &lt; checked.size(); i++) { Log.d("pos : ", "" + checked.get(i)); } break; } return super.onOptionsItemSelected(item); } /** Holds planet data. */ private static class mItems { private String name = ""; private boolean checked = false; public mItems() { } public mItems(String name) { this.name = name; } public mItems(String name, boolean checked) { this.name = name; this.checked = checked; } public String getName() { return name; } public void setName(String name) { this.name = name; } public boolean isChecked() { return checked; } public void setChecked(boolean checked) { this.checked = checked; } public String toString() { return name; } public void toggleChecked() { checked = !checked; } } /** Holds child views for one row. */ private static class SelectViewHolder { private CheckBox checkBox; private TextView textView; public SelectViewHolder() { } public SelectViewHolder(TextView textView, CheckBox checkBox) { this.checkBox = checkBox; this.textView = textView; } public CheckBox getCheckBox() { return checkBox; } public void setCheckBox(CheckBox checkBox) { this.checkBox = checkBox; } public TextView getTextView() { return textView; } public void setTextView(TextView textView) { this.textView = textView; } } /** Custom adapter for displaying an array of Planet objects. */ private static class SelectArralAdapter extends ArrayAdapter&lt;mItems&gt; { private LayoutInflater inflater; public SelectArralAdapter(Context context, List&lt;mItems&gt; planetList) { super(context, R.layout.simplerow, R.id.rowTextView, planetList); // Cache the LayoutInflate to avoid asking for a new one each time. inflater = LayoutInflater.from(context); } @Override public View getView(int position, View convertView, ViewGroup parent) { // Planet to display mItems planet = (mItems) this.getItem(position); // The child views in each row. CheckBox checkBox; TextView textView; // Create a new row view if (convertView == null) { convertView = inflater.inflate(R.layout.simplerow, null); // Find the child views. textView = (TextView) convertView .findViewById(R.id.rowTextView); checkBox = (CheckBox) convertView.findViewById(R.id.CheckBox01); // Optimization: Tag the row with it's child views, so we don't // have to // call findViewById() later when we reuse the row. convertView.setTag(new SelectViewHolder(textView, checkBox)); // If CheckBox is toggled, update the planet it is tagged with. checkBox.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { CheckBox cb = (CheckBox) v; mItems planet = (mItems) cb.getTag(); planet.setChecked(cb.isChecked()); } }); } // Reuse existing row view else { // Because we use a ViewHolder, we avoid having to call // findViewById(). SelectViewHolder viewHolder = (SelectViewHolder) convertView .getTag(); checkBox = viewHolder.getCheckBox(); textView = viewHolder.getTextView(); } // Tag the CheckBox with the Planet it is displaying, so that we can // access the planet in onClick() when the CheckBox is toggled. checkBox.setTag(planet); // Display planet data checkBox.setChecked(planet.isChecked()); textView.setText(planet.getName()); return convertView; } } public Object onRetainNonConfigurationInstance() { return itemss; } } </code></pre>
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    1. PTQuestion
    1. USStedy
    1. USuser2152480
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    1. COuse sharedpref to store
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      1. POHow to save the state to a checked item?
      1. USDjHacktorReborn
    2. CODo you want it checked no matter the user toggles it?
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      1. POHow to save the state to a checked item?
      1. USBianca D.
    3. COYou have to save it somewhere, https://developer.android.com/training/basics/data-storage/index.html should get you started on some of the options Android has for storing info/data
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      1. POHow to save the state to a checked item?
      1. USfrozenkoi
 

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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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