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copied!<p>"FIRST only one checkbox should be checked ."</p> <p>Not sure how to make this a short and easy answer, but hang with me, this works.</p> <p>Create a preference activity that you call from your activity.</p> <p>Use something like this in your onOptionSelected:</p> <pre><code> case R.id.prefs: Intent p = new Intent(MainActivity.this, Prefs.class); startActivity(p); break; </code></pre> <p>This is the Prefs.class</p> <pre><code>public class Prefs extends PreferenceActivity { CheckBoxPreference splash; CheckBoxPreference splash_music; CheckBoxPreference no_splash_music; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); addPreferencesFromResource(R.xml.prefs); splash = (CheckBoxPreference) findPreference("splash"); splash_music = (CheckBoxPreference) findPreference("splash_music"); no_splash_music = (CheckBoxPreference) findPreference("without_splash_screen"); splash.setOnPreferenceChangeListener(new OnPreferenceChangeListener() { @Override public boolean onPreferenceChange(Preference preference, Object newValue) { // TODO Auto-generated method stub splash.setChecked(true); splash_music.setChecked(false); no_splash_music.setChecked(false); return true; } }); splash_music .setOnPreferenceChangeListener(new OnPreferenceChangeListener() { @Override public boolean onPreferenceChange(Preference preference, Object newValue) { // TODO Auto-generated method stub splash.setChecked(false); splash_music.setChecked(true); no_splash_music.setChecked(false); return true; } }); no_splash_music .setOnPreferenceChangeListener(new OnPreferenceChangeListener() { @Override public boolean onPreferenceChange(Preference preference, Object newValue) { // TODO Auto-generated method stub splash.setChecked(false); splash_music.setChecked(false); no_splash_music.setChecked(true); return true; } }); } } </code></pre> <p>And don't forget to add it to the Manifest:</p> <pre><code> <activity android:name="com.lordmarty.testforlools.Prefs" android:label="@string/app_name" > <intent-filter> <action android:name="com.lordmarty.testforlools.PREFS" /> <category android:name="android.intent.category.DEFAULT" /> </intent-filter> </activity> </code></pre> <p>The prefs.xml file is the same as the one you posted.</p> <p>Let me know if you get any errors. I've tested it, and it works fine here.</p> <p>"SECOND"</p> <p>Not sure why you have to click twice. But it might be caused by the splash not finishing, just calling a new intent. Try this where ever you start your mainclass from the splash:</p> <pre><code> finally{ Intent intent = new Intent(Splash.this, MainActivity.class); startActivity(intent); finish(); } </code></pre> <p>Now, I've looked over your project and found out why it where so buggy.</p> <p>Main reason:</p> <pre><code> if (music == true) ourSong.start(); Thread timer = new Thread(){ </code></pre> <p>Here you are missing a brackets for the if statement, causing the thread to run everytime. Therefore you have two MainActivities running at the same time.</p> <p>Other notes: You use "if"'s for all the values. I suggest you use "else if".</p> <p>And I did a small cleanup.</p> <p>Here u go. Enjoy:</p> <p><a href="https://www.dropbox.com/s/tu14tptvd9kxtm8/Splash.java" rel="nofollow">Link to Splash.java</a></p> <p>You can solve the last problem in many ways. One of them being this:</p> <pre><code>// add this below the other if else if statements in the splass.java else if(without_splash_screen == false && splash == false && music == false){ //put whatever you want to happen if none of them are checked. This is just an example. setContentView(R.layout.splash); setContentView(R.layout.splash); Thread timer = new Thread() { public void run() { try { sleep(2000); } catch (InterruptedException e) { e.printStackTrace(); } finally { Intent intent = new Intent(Splash.this, MainActivity.class); startActivity(intent); finish(); } } }; timer.start(); </code></pre>

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