這是一種方法:您可以使用自定義佈局和ListView創建自己的PrefrenceFragment。基本上它是一個簡單的Fragment,它返回包含ListView的View。通過調用PreferenceScreen bind()方法可以PreferenceScreen內容膨脹到自己的ListView
公共無效綁定(ListView控件ListView控件)
在API級別1綁定一個ListView中包含的喜好 這個PreferenceScreen通過getRootAdapter()。它還處理將 列表項目單擊到此 PreferenceScreen包含的相應首選項。參數listView要附加到的列表視圖。
public class CustomPreferenceFragment extends Fragment {
CustomPreferenceFragment.java
private PreferenceManager mPreferenceManager;
/**
* The starting request code given out to preference framework.
*/
private static final int FIRST_REQUEST_CODE = 100;
private static final int MSG_BIND_PREFERENCES = 0;
private Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_BIND_PREFERENCES:
bindPreferences();
break;
}
}
};
private ListView lv;
private int xmlId;
//must be provided
public CustomPreferenceFragment(){
}
@Override
public void onDestroyView(){
super.onDestroyView();
ViewParent p = lv.getParent();
if(p != null)
((ViewGroup)p).removeView(lv);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup root, Bundle savedInstanceState){
Bundle bundle = getArguments();
if(bundle != null){
xmlId = bundle.getInt("xml");
}
View mView = inflater.inflate(R.layout.preference_list_content, null);
mPreferenceManager = onCreatePreferenceManager();
lv = (ListView)mView.findViewById(R.id.listView1);
lv.setBackgroundColor(Color.WHITE);
lv.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
addPreferencesFromResource(xmlId);
setHasOptionsMenu(true);
postBindPreferences();
return mView;
}
@Override
public void onStop(){
super.onStop();
try{
Method m = PreferenceManager.class.getDeclaredMethod("dispatchActivityStop");
m.setAccessible(true);
m.invoke(mPreferenceManager);
}catch(Exception e){
e.printStackTrace();
}
}
@Override
public void onDestroy() {
super.onDestroy();
lv = null;
try{
Method m = PreferenceManager.class.getDeclaredMethod("dispatchActivityDestroy");
m.setAccessible(true);
m.invoke(mPreferenceManager);
}catch(Exception e){
e.printStackTrace();
}
}
@Override
public void onSaveInstanceState(Bundle outState) {
outState.putInt("xml", xmlId);
super.onSaveInstanceState(outState);
}
@Override
public void onCreateOptionsMenu (Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.main, menu);
super.onCreateOptionsMenu(menu, inflater);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
try{
Method m = PreferenceManager.class.getDeclaredMethod("dispatchActivityResult", int.class, int.class, Intent.class);
m.setAccessible(true);
m.invoke(mPreferenceManager, requestCode, resultCode, data);
}catch(Exception e){
e.printStackTrace();
}
}
/**
* Posts a message to bind the preferences to the list view.
* <p>
* Binding late is preferred as any custom preference types created in
* {@link #onCreate(Bundle)} are able to have their views recycled.
*/
private void postBindPreferences() {
if (mHandler.hasMessages(MSG_BIND_PREFERENCES)) return;
mHandler.obtainMessage(MSG_BIND_PREFERENCES).sendToTarget();
}
private void bindPreferences() {
final PreferenceScreen preferenceScreen = getPreferenceScreen();
if (preferenceScreen != null) {
preferenceScreen.bind(lv);
}
}
/**
* Creates the {@link PreferenceManager}.
*
* @return The {@link PreferenceManager} used by this activity.
*/
private PreferenceManager onCreatePreferenceManager() {
try{
Constructor<PreferenceManager> c = PreferenceManager.class.getDeclaredConstructor(Activity.class, int.class);
c.setAccessible(true);
PreferenceManager preferenceManager = c.newInstance(this.getActivity(), FIRST_REQUEST_CODE);
return preferenceManager;
}catch(Exception e){
e.printStackTrace();
return null;
}
}
/**
* Returns the {@link PreferenceManager} used by this activity.
* @return The {@link PreferenceManager}.
*/
public PreferenceManager getPreferenceManager() {
return mPreferenceManager;
}
/**
* Sets the root of the preference hierarchy that this activity is showing.
*
* @param preferenceScreen The root {@link PreferenceScreen} of the preference hierarchy.
*/
public void setPreferenceScreen(PreferenceScreen preferenceScreen){
try{
Method m = PreferenceManager.class.getDeclaredMethod("setPreferences", PreferenceScreen.class);
m.setAccessible(true);
boolean result = (Boolean) m.invoke(mPreferenceManager, preferenceScreen);
if (result && preferenceScreen != null) {
postBindPreferences();
}
}catch(Exception e){
e.printStackTrace();
}
}
/**
* Gets the root of the preference hierarchy that this activity is showing.
*
* @return The {@link PreferenceScreen} that is the root of the preference
* hierarchy.
*/
public PreferenceScreen getPreferenceScreen(){
try{
Method m = PreferenceManager.class.getDeclaredMethod("getPreferenceScreen");
m.setAccessible(true);
return (PreferenceScreen) m.invoke(mPreferenceManager);
}catch(Exception e){
e.printStackTrace();
return null;
}
}
/**
* Inflates the given XML resource and adds the preference hierarchy to the current
* preference hierarchy.
*
* @param preferencesResId The XML resource ID to inflate.
*/
public void addPreferencesFromResource(int preferencesResId) {
try{
Method m = PreferenceManager.class.getDeclaredMethod("inflateFromResource", Context.class, int.class, PreferenceScreen.class);
m.setAccessible(true);
PreferenceScreen prefScreen = (PreferenceScreen) m.invoke(mPreferenceManager, getActivity(), preferencesResId, getPreferenceScreen());
setPreferenceScreen(prefScreen);
}catch(Exception e){
e.printStackTrace();
}
}
/**
* Finds a {@link Preference} based on its key.
*
* @param key The key of the preference to retrieve.
* @return The {@link Preference} with the key, or null.
* @see PreferenceGroup#findPreference(CharSequence)
*/
public Preference findPreference(CharSequence key) {
if (mPreferenceManager == null) {
return null;
}
return mPreferenceManager.findPreference(key);
}
}
preference_list_content.xml //您的自定義的ListView /佈局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true" >
</ListView>
</RelativeLayout>
示例如何使用:
MainActivity.java
public class MainActivity extends Activity implements OnSharedPreferenceChangeListener{
private SharedPreferences sharedPref;
private CustomPreferenceFragment frag;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
frag = new CustomPreferenceFragment();
Bundle bundle = new Bundle();
bundle.putInt("xml", R.xml.prefs); //Your preference xml that you want to inflate
frag.setArguments(bundle);
getFragmentManager().beginTransaction().add(R.id.frameLayout, frag).commit();
sharedPref = PreferenceManager.getDefaultSharedPreferences(this);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public void onResume(){
super.onResume();
sharedPref.registerOnSharedPreferenceChangeListener(this);
}
@Override
public void onPause(){
super.onPause();
sharedPref.unregisterOnSharedPreferenceChangeListener(this);
}
@Override
public void onSharedPreferenceChanged(SharedPreferences sharedPreferences,
String key) {
Toast.makeText(this, "Preferences changed, key: " + key, Toast.LENGTH_SHORT).show();
}
}
的prefs.xml進入下res/xml /文件夾:
<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" android:title="android custom prefs test">
<Preference android:title="Preference Fragment " android:summary="With custom background" android:key="key_1"/>
<CheckBoxPreference android:title="CheckBoxPref" android:summary="Preference with checkbox" android:key="key_2"/>
<SwitchPreference android:title="SwitchPreference" android:summary="Prefrence with switch" android:key="key_3"/>
</PreferenceScreen>
如何更改此首選項的背景顏色?
在CustomPreferenceFragment.java:
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup root, Bundle savedInstanceState){
lv.setBackgroundColor(Color.WHITE);
}
結果:
其實我喜歡這種方法。我只是謹慎添加,而我決定不走這條路線的原因是它可能會在未來的更新中破壞:(無論如何,無論哪種方式,這可能是最好的解決方案,對於與定製首選項片段相關的任何事情都不是胡扯。 – Andy