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POAndroid - How to save the state of a CheckBox
 

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  1. POAndroid - How to save the state of a CheckBox
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    <p>I have an application with checkboxes, How can i save them?</p> <p>My layout is:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout android:id="@+id/list_linear" android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android"&gt; &lt;ScrollView android:id="@+id/ScrollView01" android:layout_width="fill_parent" android:layout_height="match_parent"&gt; &lt;TableLayout android:id="@+id/tableLayout1" android:layout_height="match_parent" android:layout_width="wrap_content"&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Ontbijtkoek" android:id="@+id/checkBox1" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Koekrepen" android:id="@+id/checkBox70" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Beschuit" android:id="@+id/checkBox69" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Chocolade" android:id="@+id/checkBox68" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Koekjes" android:id="@+id/checkBox67" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Brood" android:id="@+id/checkBox66" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Hagelslag puur" android:id="@+id/checkBox65" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Hagelslag mix" android:id="@+id/checkBox64" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Pindakaas" android:id="@+id/checkBox63" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Pasta" android:id="@+id/checkBox62" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Jam" android:id="@+id/checkBox61" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Thee" android:id="@+id/checkBox60" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Boter" android:id="@+id/checkBox59" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Smeerkaas" android:id="@+id/checkBox58" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Suiker" android:id="@+id/checkBox57" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Groente" android:id="@+id/checkBox56" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Fruit" android:id="@+id/checkBox55" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Aardappeltjes" android:id="@+id/checkBox54" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Zoutjes" android:id="@+id/checkBox53" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Sapjes" android:id="@+id/checkBox52" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/CheckBox&gt; &lt;/TableLayout&gt; &lt;/ScrollView&gt; &lt;/LinearLayout&gt; </code></pre> <p>(Yes i now, that are much checkboxes)</p> <p>And my main.class is:</p> <pre><code>package com.boodschappen; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.content.DialogInterface; import android.content.SharedPreferences; import android.graphics.Color; import android.graphics.Typeface; import android.os.Bundle; import android.preference.PreferenceManager; import android.util.Log; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.View.OnClickListener; import android.view.Window; import android.view.WindowManager; import android.widget.CheckBox; import android.widget.TextView; public class main extends Activity { @Override public void onBackPressed() { showDialog(MENU_EXIT); super.onBackPressed(); } private static final int MENU_SAVE = 0; private static final int MENU_DIALOG = 2; private static final int MENU_EXIT = 3; private static final int MENU_LOAD = 1; CheckBox een, v52, v53, v54, v55, v56, v57, v58, v59, z60, z61, z62, z63, z64, z65, z66, z67, z68, z69, z70 ; @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); this.requestWindowFeature(Window.FEATURE_NO_TITLE); this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON, WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); setContentView(R.layout.list); Typeface fontFace = Typeface.createFromAsset(getAssets(), "fonts/ankehand.ttf"); TextView someText1 = (TextView)findViewById(R.id.checkBox1); TextView someText52 = (TextView)findViewById(R.id.checkBox52); TextView someText53 = (TextView)findViewById(R.id.checkBox53); TextView someText54 = (TextView)findViewById(R.id.checkBox54); TextView someText55 = (TextView)findViewById(R.id.checkBox55); TextView someText56 = (TextView)findViewById(R.id.checkBox56); TextView someText57 = (TextView)findViewById(R.id.checkBox57); TextView someText58 = (TextView)findViewById(R.id.checkBox58); TextView someText59 = (TextView)findViewById(R.id.checkBox59); TextView someText60 = (TextView)findViewById(R.id.checkBox60); TextView someText61 = (TextView)findViewById(R.id.checkBox61); TextView someText62 = (TextView)findViewById(R.id.checkBox62); TextView someText63 = (TextView)findViewById(R.id.checkBox63); TextView someText64 = (TextView)findViewById(R.id.checkBox64); TextView someText65 = (TextView)findViewById(R.id.checkBox65); TextView someText66 = (TextView)findViewById(R.id.checkBox66); TextView someText67 = (TextView)findViewById(R.id.checkBox67); TextView someText68 = (TextView)findViewById(R.id.checkBox68); TextView someText69 = (TextView)findViewById(R.id.checkBox69); TextView someText70 = (TextView)findViewById(R.id.checkBox70); someText1.setTypeface(fontFace); // only typeface someText52.setTypeface(fontFace); // only typeface someText53.setTypeface(fontFace); // only typeface someText54.setTypeface(fontFace); // only typeface someText55.setTypeface(fontFace); // only typeface someText56.setTypeface(fontFace); // only typeface someText57.setTypeface(fontFace); // only typeface someText58.setTypeface(fontFace); // only typeface someText59.setTypeface(fontFace); // only typeface someText60.setTypeface(fontFace); // only typeface someText61.setTypeface(fontFace); // only typeface someText62.setTypeface(fontFace); // only typeface someText63.setTypeface(fontFace); // only typeface someText64.setTypeface(fontFace); // only typeface someText65.setTypeface(fontFace); // only typeface someText66.setTypeface(fontFace); // only typeface someText67.setTypeface(fontFace); // only typeface someText68.setTypeface(fontFace); // only typeface someText69.setTypeface(fontFace); // only typeface someText70.setTypeface(fontFace); // only typeface een = (CheckBox) findViewById(R.id.checkBox1); een.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ een.setTextColor(R.color.black); } else { een.setTextColor(Color.rgb(255,255,255)); } } }); v42 = (CheckBox) findViewById(R.id.checkBox52); v42.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ v42.setTextColor(R.color.black); } else { v42.setTextColor(Color.rgb(255,255,255)); } } }); v43 = (CheckBox) findViewById(R.id.checkBox53); v43.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ v43.setTextColor(R.color.black); } else { v43.setTextColor(Color.rgb(255,255,255)); } } }); v44 = (CheckBox) findViewById(R.id.checkBox54); v44.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ v44.setTextColor(R.color.black); } else { v44.setTextColor(Color.rgb(255,255,255)); } } }); v45 = (CheckBox) findViewById(R.id.checkBox55); v45.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ v45.setTextColor(R.color.black); } else { v45.setTextColor(Color.rgb(255,255,255)); } } }); v46 = (CheckBox) findViewById(R.id.checkBox56); v46.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ v46.setTextColor(R.color.black); } else { v46.setTextColor(Color.rgb(255,255,255)); } } }); v47 = (CheckBox) findViewById(R.id.checkBox57); v47.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ v47.setTextColor(R.color.black); } else { v47.setTextColor(Color.rgb(255,255,255)); } } }); v48 = (CheckBox) findViewById(R.id.checkBox58); v48.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ v48.setTextColor(R.color.black); } else { v48.setTextColor(Color.rgb(255,255,255)); } } }); v49 = (CheckBox) findViewById(R.id.checkBox59); v49.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ v49.setTextColor(R.color.black); } else { v49.setTextColor(Color.rgb(255,255,255)); } } }); v50 = (CheckBox) findViewById(R.id.checkBox60); v50.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ v50.setTextColor(R.color.black); } else { v50.setTextColor(Color.rgb(255,255,255)); } } }); v51 = (CheckBox) findViewById(R.id.checkBox61); v51.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ v51.setTextColor(R.color.black); } else { v51.setTextColor(Color.rgb(255,255,255)); } } }); v52 = (CheckBox) findViewById(R.id.checkBox62); v52.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ v52.setTextColor(R.color.black); } else { v52.setTextColor(Color.rgb(255,255,255)); } } }); v53 = (CheckBox) findViewById(R.id.checkBox63); v53.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ v53.setTextColor(R.color.black); } else { v53.setTextColor(Color.rgb(255,255,255)); } } }); v54 = (CheckBox) findViewById(R.id.checkBox64); v54.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ v54.setTextColor(R.color.black); } else { v54.setTextColor(Color.rgb(255,255,255)); } } }); v55 = (CheckBox) findViewById(R.id.checkBox65); v55.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ v55.setTextColor(R.color.black); } else { v55.setTextColor(Color.rgb(255,255,255)); } } }); v56 = (CheckBox) findViewById(R.id.checkBox66); v56.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ v56.setTextColor(R.color.black); } else { v56.setTextColor(Color.rgb(255,255,255)); } } }); v57 = (CheckBox) findViewById(R.id.checkBox67); v57.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ v57.setTextColor(R.color.black); } else { v57.setTextColor(Color.rgb(255,255,255)); } } }); v58 = (CheckBox) findViewById(R.id.checkBox68); v58.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ v58.setTextColor(R.color.black); } else { v58.setTextColor(Color.rgb(255,255,255)); } } }); v59 = (CheckBox) findViewById(R.id.checkBox69); v59.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ v59.setTextColor(R.color.black); } else { v59.setTextColor(Color.rgb(255,255,255)); } } }); z60 = (CheckBox) findViewById(R.id.checkBox70); z60.setOnClickListener(new OnClickListener(){ public void onClick(View v){ if(((CheckBox) v).isChecked()){ z60.setTextColor(R.color.black); } else { z60.setTextColor(Color.rgb(255,255,255)); } } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { menu.add(0, MENU_SAVE, 0, "Opslaan"); menu.add(1,MENU_LOAD, 1, "Laden"); menu.add(2, MENU_DIALOG, 2, "About"); menu.add(3, MENU_EXIT, 3, "Exit"); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case MENU_SAVE: Here i want to Save the Checkboxes return true; case MENU_LOAD: Here i want to Load the Checkboxes return true; case MENU_DIALOG: Dialog dialog = new Dialog(lidl.this); dialog.setContentView(R.layout.custom_dialog); dialog.setTitle("About"); dialog.setCancelable(true); //there are a lot of settings, for dialog, check them all out! //set up text TextView text = (TextView) dialog.findViewById(R.id.text); text.setText("Hallo, deze applicatie is een variant op Appie©. Deze applicatie is op volgorde van de winkel waar wij meestal onze boodschappen doen. Wilt u ook zo'n applicatie, ga dan naar het tabje Mail. Zet daarin welke winkel(s) het zijn, en wat u daar altijd koopt."); dialog.show(); return true; case MENU_EXIT: AlertDialog.Builder alt_bld = new AlertDialog.Builder(this); alt_bld.setMessage("Weet je zeker dat je wilt afsluiten?") .setCancelable(false) .setPositiveButton("Ja", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { System.exit(0); } }) .setNegativeButton("Nee", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { // Action for 'NO' Button dialog.cancel(); } }); AlertDialog alert = alt_bld.create(); // Title for AlertDialog alert.setTitle("Exit"); alert.show(); return true; } return false; } } </code></pre> <p>Do you now how to do this?</p> <p>I hope you understand me, and i hope you could help me.</p> <p>Gaauwe</p> <p>EDIT:</p> <p>Here is the code that i want to save things and load things:</p> <pre><code>@Override public boolean onCreateOptionsMenu(Menu menu) { menu.add(2, MENU_SAVE, 2, "Save"); menu.add(3, MENU_LOAD, 3, "Load"); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case MENU_SAVE: Here save the checkboxes return true; case MENU_LOAD: Here load the checkboxes return true; </code></pre>
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