PreferenceActivity 的建立使用

 

//創建一個PreferenceActivity 關鍵要loadHeadersFromResource(R.xml.settings_headers, headers); 這樣就把本身建立的header.xml導入了activity

public class SettingsActivity extends PreferenceActivity {
    private static final String TAG = "SettingsActivity";   

    private List<Header> mHeaders;

@Override  
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState); 
        logd("onCreate");       
        //setContentView(R.layout.activity_secretitem_list);   
        //this.requestWindowFeature(Window.FEATURE_NO_TITLE);
        this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,      WindowManager.LayoutParams.FLAG_FULLSCREEN);
        this.getWindow().setUiOptions(0);
  setTitle(R.string.DVB_settings);
    }

    /**
     * Populate the activity with the top-level headers.
     */
    @Override
    public void onBuildHeaders(List<Header> headers) {
        logd("[onBuildHeaders]");
        loadHeadersFromResource(R.xml.dvbplayer_settings_headers, headers);

        mHeaders = headers;
    }}

< header xml file 注意必須是<preference-headers>

 <header  />

<header/>

...

</preference-headers

<preference-headers
    xmlns:android="http://schemas.android.com/apk/res/android">

    <header
        android:id="@+id/av_settings"
        android:fragment="com.hx.SettingsPreferenceFragment"
        android:title="@string/av_settings"/>
    
       <header
        android:id="@+id/db_management"
        android:fragment="com..hx.DBPreferenceFragment"
        android:title="@string/db_management"/>
    <header/>

    .....
     </preference-headers>

<fragment xml file 這個是具體的fragment對應的佈局文件，可按照需求來佈局相應控件

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
        android:title="@string/dtv_settings"
        xmlns:settings="http://schemas.android.com/apk/res/com.android.settings">  
    <CheckBoxPreference
        android:key="subtitle"
        android:title="@string/subtitle"/> 

         <Preference
        android:key="select_storage"
        android:title="@string/pvr_storage_select"
        android:summary="@string/pvr_storage_select_summary"/>

  <ListPreference
         android:key="banner_time"
         android:title="@string/settings_set_channel_bar_time"
         android:entries="@array/banner_time"
         android:entryValues="@array/banner_time_values" />
</PreferenceScreen>

 

//這是具體的fragment的文件，在oncreate的addPreferencesFromResource(R.xml.dtv_settings_pre_fragment);中加了佈局文件，再初始化各個組件
監聽onPreferenceTreeclick 和onpreferencechange事件

public class SettingsPreferenceFragment extends PreferenceFragment implements
        Preference.OnPreferenceChangeListener{
    private static final String TAG = "DtvSettingsPreferenceFragment";

    private SharedPreferences mLast;
    private ListPreference mTtxRegion;
    private ListPreference mBannerTime;

    public DtvSettingsPreferenceFragment() {
        logd("constructor");
    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        logd("onAttach");
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        logd("onCreate");
        addPreferencesFromResource(R.xml.dtv_settings_pre_fragment);
       
        mLast = PreferenceManager.getDefaultSharedPreferences(getActivity());

        mSubTitle = (CheckBoxPreference) findPreference(KEY_SUBTITLE);
        mRecallSwitch = (CheckBoxPreference) findPreference(KEY_RECALL_SWITCH);
        mSyncTime = (CheckBoxPreference) findPreference(KEY_SYNC_TIME);
//        mScreenTypes = (ListPreference) findPreference(KEY_SCREEN_TYPES);
//        mAudioTrack = (ListPreference) findPreference(KEY_AUDIO_TRACK);
//        mTimeShift = (ListPreference) findPreference(KEY_TIMESHIFT);
        mTtxRegion = (ListPreference) findPreference(KEY_TTX_REGION);
        mBannerTime = (ListPreference) findPreference(KEY_BANNER_TIME);

        if (mSubTitle != null) {
            mSubTitle.setSummaryOn(R.string.subtitle_summary_on);
            mSubTitle.setSummaryOff(R.string.subtitle_summary_off);
            mSubTitle.setChecked(DVBPlayer.getConnect().getSubtitleStatus());
        }

        if (mRecallSwitch != null) {
            mRecallSwitch.setSummaryOn(R.string.recall_switch_summary_on);
            mRecallSwitch.setSummaryOff(R.string.recall_switch_summary_off);
            mRecallSwitch.setChecked(mLast.getBoolean(settings.RECALL_SWITCH, false));
        }

        if (mSyncTime != null) {
            mSyncTime.setSummaryOn(R.string.sync_time_summary_on);
            mSyncTime.setSummaryOff(R.string.sync_time_summary_off);
            mSyncTime.setChecked(DVBPlayer.getConnect().getUpdateSysTimeStatus());
        }
        /*
        if (mScreenTypes != null) {
            int screenTypesMode = DVBPlayer.getConnect().getScreenmode();
            mScreenTypes.setValue(screenTypesMode + "");
            mScreenTypes.setSummary(mScreenTypes.getEntry());
            mScreenTypes.setOnPreferenceChangeListener(this);
        }
       
        if (mAudioTrack != null) {
            int audioTrackMode = mLast.getInt("AUDIOTRACK", 0);
            mAudioTrack.setValue(audioTrackMode + "");
            mAudioTrack.setSummary(mAudioTrack.getEntry());
            mAudioTrack.setOnPreferenceChangeListener(this);
        }
       
        if (mTimeShift != null) {
            int time = DVBPlayer.getConnect().getTimeShiftingDuration();
            mTimeShift.setValue(time + "");
            mTimeShift.setSummary(mTimeShift.getEntry());
            mTimeShift.setOnPreferenceChangeListener(this);
        }
        */
       
        if (mTtxRegion != null) {
            int ttxRegionIndex = DVBPlayer.getConnect().getTeletextRegion();
            String ttxRegionStr = DVBPlayer.getConnect().getTeletextRegionName();

            String[] ttxRegionStrArray;
            if (ttxRegionStr != null) {
                ttxRegionStrArray = ttxRegionStr.split(" ");
                String[] ttxRegionStrValueArray = new String[ttxRegionStrArray.length];
                for (int i=0; i<ttxRegionStrArray.length; i++) {
                    ttxRegionStrValueArray[i] = i + "";
                }

                mTtxRegion.setEntries(ttxRegionStrArray);
                mTtxRegion.setEntryValues(ttxRegionStrValueArray);
            }
            mTtxRegion.setValue(ttxRegionIndex + "");
            mTtxRegion.setSummary(mTtxRegion.getEntry());
            mTtxRegion.setOnPreferenceChangeListener(this);
        }

        if (mBannerTime != null) {
            int time = mLast.getInt("channelbar_dismiss_time", 5);
            logd("time : " + time);
            mBannerTime.setValue(time + "");
            mBannerTime.setSummary(mBannerTime.getEntry());
            mBannerTime.setOnPreferenceChangeListener(this);
        }
    }
       @Override
    public boolean onPreferenceTreeClick(PreferenceScreen screen, Preference preference) {
        logd("onPreferenceTreeClick");
        if (preference == mSubTitle) {
            if (mSubTitle.isChecked()) {
                            }
        } else if (preference == mRecallSwitch) {
                   }

        return true;
    }

    public boolean onPreferenceChange(Preference preference, Object objValue) {
        final String key = preference.getKey();
        logd("[onPreferenceChange] key : " + key);
        /*
        if (KEY_SCREEN_TYPES.equals(key)) {
                 } else if (KEY_AUDIO_TRACK.equals(key)) {
                   } else if (KEY_TIMESHIFT.equals(key)) {
            int timeshiftIndex = mTimeShift.findIndexOfValue((String)objValue);
            mTimeShift.setSummary(mTimeShift.getEntries()[timeshiftIndex].toString());
              } else */
         if (KEY_TTX_REGION.equals(key)) {
                                   }

        return true;
    }
        
 }

此處有更加詳細的介紹：http://blog.csdn.net/xingfeng2010/article/details/8158993