Force close message when preferences are called via menu button

Question

I see no problem in the code. Help?

preferences.xml

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"&gt;


<ListPreference
android:title="Gender"
android:summary="Are you male or female?"
android:key="genderPref"
android:defaultValue="male"
android:entries="@array/genderArray"
android:entryValues="@array/genderValues" />


<ListPreference
android:title="Weight"
android:summary="How much do you weigh?"
android:key="weightPref"
android:defaultValue="180"
android:entries="@array/weightArray"
android:entryValues="@array/weightValues" />


</PreferenceScreen>

arrays.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>

<string-array name="genderArray">
<item>Male</item>
<item>Female</item>
</string-array>
<string-array name="genderValues">
<item>male</item>
<item>female</item>
</string-array>

<string-array name="weightArray">
<item>120</item>
<item>150</item>
<item>180</item>
<item>210</item>
<item>240</item>
<item>270</item>
</string-array>
<string-array name="weightValues">
<item>120</item>
<item>150</item>
<item>180</item>
<item>210</item>
<item>240</item>
<item>270</item>
</string-array>

</resources>

Preferences.java:

 package com.dantoth.drinkingbuddy;


 import android.os.Bundle;
 import android.preference.PreferenceActivity;


 public class Preferences extends PreferenceActivity {
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 addPreferencesFromResource(R.xml.preferences);

 };
 }

butts.xml (idk why it's butts but I've gotten used to it now. really just sets up the menu button)

<?xml version="1.0" encoding="utf-8"?>
 <menu xmlns:android="http://schemas.android.com/apk/res/android"&gt;
  <item android:id="@+id/settings"
    android:title="Settings"
    android:icon="@drawable/ic_menu_settings" />
  <item android:id="@+id/archive"
    android:title="Archive"
    android:icon="@drawable/ic_menu_archive" />
  <item android:id="@+id/new_session"
    android:title="New Session"
    android:icon="@drawable/ic_menu_new" />
  <item android:id="@+id/about"
    android:title="About"
    android:icon="@drawable/ic_menu_about" />       
 </menu>

within DrinkingBuddy.java:

 @Override
 public boolean onOptionsItemSelected(MenuItem item) {
   switch (item.getItemId()) {
    case R.id.settings:  

        startActivity(new Intent(this, Preferences.class));
        return true;



    case R.id.archive:     Toast.makeText(this, "Expect to see your old drinking sessions here.", Toast.LENGTH_LONG).show();
        return true;

     //ETC.


 } return false;

That's it. I can press the menu button on the phone and see the menu items I created, but when I click on the "Settings" (r.id.settings) it FC. Do I have to do anything to the manifest/other thing to get this to work??

Answer 1

You need to have .Preferences listed as an <activity> in your manifest, if you don't already.

Also, check the output of logcat (either from the LogCat view in Eclipse, or by running adb logcat on the command line) to get an idea of what the actual problem is.