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      1 package com.android.phone;
      2 
      3 import android.app.ActionBar;
      4 import android.content.Intent;
      5 import android.os.Bundle;
      6 import android.preference.Preference;
      7 import android.preference.PreferenceScreen;
      8 import android.util.Log;
      9 import android.view.MenuItem;
     10 
     11 import java.util.ArrayList;
     12 
     13 public class GsmUmtsAdditionalCallOptions extends
     14         TimeConsumingPreferenceActivity {
     15     private static final String LOG_TAG = "GsmUmtsAdditionalCallOptions";
     16     private final boolean DBG = (PhoneApp.DBG_LEVEL >= 2);
     17 
     18     private static final String BUTTON_CLIR_KEY  = "button_clir_key";
     19     private static final String BUTTON_CW_KEY    = "button_cw_key";
     20 
     21     private CLIRListPreference mCLIRButton;
     22     private CallWaitingCheckBoxPreference mCWButton;
     23 
     24     private ArrayList<Preference> mPreferences = new ArrayList<Preference> ();
     25     private int mInitIndex= 0;
     26 
     27     @Override
     28     protected void onCreate(Bundle icicle) {
     29         super.onCreate(icicle);
     30 
     31         addPreferencesFromResource(R.xml.gsm_umts_additional_options);
     32 
     33         PreferenceScreen prefSet = getPreferenceScreen();
     34         mCLIRButton = (CLIRListPreference) prefSet.findPreference(BUTTON_CLIR_KEY);
     35         mCWButton = (CallWaitingCheckBoxPreference) prefSet.findPreference(BUTTON_CW_KEY);
     36 
     37         mPreferences.add(mCLIRButton);
     38         mPreferences.add(mCWButton);
     39 
     40         if (icicle == null) {
     41             if (DBG) Log.d(LOG_TAG, "start to init ");
     42             mCLIRButton.init(this, false);
     43         } else {
     44             if (DBG) Log.d(LOG_TAG, "restore stored states");
     45             mInitIndex = mPreferences.size();
     46             mCLIRButton.init(this, true);
     47             mCWButton.init(this, true);
     48             int[] clirArray = icicle.getIntArray(mCLIRButton.getKey());
     49             if (clirArray != null) {
     50                 if (DBG) Log.d(LOG_TAG, "onCreate:  clirArray[0]="
     51                         + clirArray[0] + ", clirArray[1]=" + clirArray[1]);
     52                 mCLIRButton.handleGetCLIRResult(clirArray);
     53             } else {
     54                 mCLIRButton.init(this, false);
     55             }
     56         }
     57 
     58         ActionBar actionBar = getActionBar();
     59         if (actionBar != null) {
     60             // android.R.id.home will be triggered in onOptionsItemSelected()
     61             actionBar.setDisplayHomeAsUpEnabled(true);
     62         }
     63     }
     64 
     65     @Override
     66     protected void onSaveInstanceState(Bundle outState) {
     67         super.onSaveInstanceState(outState);
     68 
     69         if (mCLIRButton.clirArray != null) {
     70             outState.putIntArray(mCLIRButton.getKey(), mCLIRButton.clirArray);
     71         }
     72     }
     73 
     74     @Override
     75     public void onFinished(Preference preference, boolean reading) {
     76         if (mInitIndex < mPreferences.size()-1 && !isFinishing()) {
     77             mInitIndex++;
     78             Preference pref = mPreferences.get(mInitIndex);
     79             if (pref instanceof CallWaitingCheckBoxPreference) {
     80                 ((CallWaitingCheckBoxPreference) pref).init(this, false);
     81             }
     82         }
     83         super.onFinished(preference, reading);
     84     }
     85 
     86     @Override
     87     public boolean onOptionsItemSelected(MenuItem item) {
     88         final int itemId = item.getItemId();
     89         if (itemId == android.R.id.home) {  // See ActionBar#setDisplayHomeAsUpEnabled()
     90             CallFeaturesSetting.goUpToTopLevelSetting(this);
     91             return true;
     92         }
     93         return super.onOptionsItemSelected(item);
     94     }
     95 }
     96