Android4.0设置接口变更摘要（四）
为了与你之前，你已经设置了共享Tab风格和Item实现圆角。希望能给有须要的朋友一点点帮助，今天再和大家分享一下用ViewPager实现设置分页，小米和OPPO就是这种设置，先来看看效果图： 为了帮助大家更清晰的理解，我单独拿出一个小样例。有须要的朋友能够下载下来看看： http://git.oschina.net/way/SettingTab/tree/master 事实上要实现这种风格并不难。仅仅要能比較深入的理解PreferenceActivity.java就能够了。 我们都知道Settings.java是继承自PreferenceActivity.java，所用的布局文件layout也是父类的，并且他的二级界面都是Fragment。都是依赖他这个Activity。假设在onCreate函数中通过setContentView()改变Settings.java的布局。岂不是也会影响他的二级界面？相信非常多遇到困难的朋友就是这个原因。 答案是否定的。非常明显，我们仅仅须要在显示Settings的第一个界面的时候才setContentView()。也就是说在onCreate里面推断一下：if (this.getClass().equals(Settings.class))，为什么是这样呢？我们能够滚动到Settings.java文件末尾，会发现。事实上二级菜单都是一些Fragment。可是它们也有虚拟的类名的，都是Settings的内部类，所以，进到二级菜单就不满足这个条件了。 例如以下所看到的： if (this.getClass().equals(Settings.class)) { setContentView(R.layout.tab_settings); mTabCursor = (ImageView) findViewById(R.id.tab_cursor); ViewPager viewPager = (ViewPager) findViewById(R.id.pager); viewPager.setAdapter(new ViewPagerAdapter(getFragmentManager())); viewPager.setOnPageChangeListener(mPageChangeListener); mViewPager = viewPager; mTabGeneral = (TextView) findViewById(R.id.tab_general); mTabDisplay = (TextView) findViewById(R.id.tab_display); mTabGeneral.setOnClickListener(mTabOnClickListener); mTabDisplay.setOnClickListener(mTabOnClickListener); mTabGeneral.setTextColor(COLOR_SELECTED); mTabGeneral.setTextSize(TEXT_SIZE_SELECTED); } 相信，看完上面这段代码，遇到困难的朋友应该会豁然开朗。以下都能够不用继续看下去了。 只是为了善始善终，我会继续贴下去。 接下来。我们看看tab_settings.xml的布局，由于PreferenceActivity的特性，布局中必需要有一个id为android:id/list的ListView，由于全部的xml文件夹下的preference解析出来都是显示在上面，尽管我们改变了布局。但还是不能改变他的代码嘛！就弄一个高度宽度为0的ListView骗一下它就能够了，呵呵： <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" > <ListView android:id="@android:id/list" android:layout_width="0dp" android:layout_height="0dp" android:visibility="gone"/> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" > <FrameLayout android:layout_width="match_parent" android:layout_height="@dimen/tab_height" android:background="@drawable/tab_background" > <ImageView android:id="@+id/tab_cursor" android:layout_width="@dimen/tab_width" android:layout_height="@dimen/tab_height" android:background="@drawable/tab_cursor"/> <LinearLayout android:layout_width="match_parent" android:layout_height="@dimen/tab_height"> <TextView android:id="@+id/tab_general" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:layout_gravity="center_vertical" android:gravity="center" android:text="@string/tab_general" android:singleLine="true" android:textSize="@dimen/tab_text_size" /> <TextView android:id="@+id/tab_display" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:layout_gravity="center_vertical" android:text="@string/tab_display" android:singleLine="true" android:textSize="@dimen/tab_text_size" /> </LinearLayout> </FrameLayout> <android.support.v4.view.ViewPager android:id="@+id/pager" android:layout_width="match_parent" android:layout_height="match_parent" /> </LinearLayout> </FrameLayout> 接下来便是普通ViewPager的使用了。我这里就不多说了。 以下把整个Settings.java的源码分享一下： /* * Copyright (C) 2008 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.android.settings; import android.app.ActionBar; import android.app.ActivityManager; import android.app.Fragment; import android.app.FragmentManager; import com.android.internal.util.ArrayUtils; import com.android.settings.accounts.AccountSyncSettings; import com.android.settings.accounts.AuthenticatorHelper; import com.android.settings.accounts.ManageAccountsSettings; import com.android.settings.applications.ManageApplications; import com.android.settings.bluetooth.BluetoothEnabler; import com.android.settings.deviceinfo.Memory; import com.android.settings.fuelgauge.PowerUsageSummary; import com.android.settings.inputmethod.UserDictionaryAddWordFragment; import com.android.settings.wifi.WifiEnabler; import com.android.settings.wristwatch.WristwatchEnabler; import static com.sprd.android.config.OptConfig.LC_RAM_SUPPORT; import android.accounts.Account; import android.accounts.AccountManager; import android.accounts.OnAccountsUpdateListener; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.pm.ActivityInfo; import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; import android.graphics.drawable.Drawable; import android.os.Bundle; import android.os.INetworkManagementService; import android.os.RemoteException; import android.os.ServiceManager; import android.os.UserId; import android.os.SystemProperties; import android.os.TopwiseProp; import android.preference.Preference; import android.preference.PreferenceActivity; import android.preference.PreferenceActivity.Header; import android.preference.PreferenceFragment; import android.support.v13.app.FragmentPagerAdapter; import android.support.v4.view.ViewPager; import android.support.v4.view.ViewPager.OnPageChangeListener; import android.telephony.TelephonyManager; import android.text.TextUtils; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.Window; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.ArrayAdapter; import android.widget.BaseAdapter; import android.widget.Button; import android.widget.CompoundButton; import android.widget.ImageView; import android.widget.ListAdapter; import android.widget.Switch; import android.widget.TextView; import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.HashMap; import java.util.List; /** * Top-level settings activity to handle single pane and double pane UI layout. */ public class Settings extends PreferenceActivity implements ButtonBarHandler, OnAccountsUpdateListener { private static final String LOG_TAG = "Settings"; private static final String META_DATA_KEY_HEADER_ID = "com.android.settings.TOP_LEVEL_HEADER_ID"; private static final String META_DATA_KEY_FRAGMENT_CLASS = "com.android.settings.FRAGMENT_CLASS"; private static final String META_DATA_KEY_PARENT_TITLE = "com.android.settings.PARENT_FRAGMENT_TITLE"; private static final String META_DATA_KEY_PARENT_FRAGMENT_CLASS = "com.android.settings.PARENT_FRAGMENT_CLASS"; private static final String EXTRA_CLEAR_UI_OPTIONS = "settings:remove_ui_options"; private static final String SAVE_KEY_CURRENT_HEADER = "com.android.settings.CURRENT_HEADER"; private static final String SAVE_KEY_PARENT_HEADER = "com.android.settings.PARENT_HEADER"; //fix bug 210641 the text of "backup and reset" not appropriate ,when os did not support backup on 2013.9.4 start private static final String GSETTINGS_PROVIDER = "com.google.settings"; //fix bug 210641 the text of "backup and reset" not appropriate ,when os did not support backup on 2013.9.4 send public static boolean UNIVERSEUI_SUPPORT = SystemProperties.getBoolean("universe_ui_support",false); public static final boolean CU_SUPPORT = SystemProperties.get("ro.operator").equals("cucc"); private String mFragmentClass; private int mTopLevelHeaderId; private Header mFirstHeader; private Header mCurrentHeader; private Header mParentHeader; private boolean mInLocalHeaderSwitch; // Show only these settings for restricted users private int[] SETTINGS_FOR_RESTRICTED = { R.id.wifi_settings, R.id.bluetooth_settings, R.id.sound_settings, R.id.display_settings, R.id.security_settings, R.id.account_settings, R.id.about_settings }; private boolean mEnableUserManagement = false; // TODO: Update Call Settings based on airplane mode state. protected HashMap<Integer, Integer> mHeaderIndexMap = new HashMap<Integer, Integer>(); private AuthenticatorHelper mAuthenticatorHelper; private Header mLastHeader; private boolean mListeningToAccountUpdates; private boolean mBluetoothEnable; private boolean mVoiceCapable; // Start by luqiang, topwise, 2014.2.27 [wristwatch config] //private boolean mIsOpenWristwatchCfg = TopwiseProp.getDefaultSettingBoolean("topwise_open_wristwatch"); private boolean mIsOpenWristwatchCfg = TopwiseProp.getDefaultSettingBoolean("topwise_wristwatch_unlock"); // End by luqiang, topwise, 2014.2.27 [wristwatch config] @Override protected void onCreate(Bundle savedInstanceState) { mBluetoothEnable = (SystemProperties.getInt("ro.tablet.bluetooth.enable", 1) != 0); mBluetoothEnable = (SystemProperties.getInt("ro.tablet.bluetooth.enable", 1) != 0); mVoiceCapable = getResources().getBoolean(com.android.internal.R.bool.config_voice_capable); if (getIntent().getBooleanExtra(EXTRA_CLEAR_UI_OPTIONS, false)) { getWindow().setUiOptions(0); } if (android.provider.Settings.Secure.getInt(getContentResolver(), "multiuser_enabled", -1) > 0) { mEnableUserManagement = true; } mAuthenticatorHelper = new AuthenticatorHelper(); mAuthenticatorHelper.updateAuthDescriptions(this); mAuthenticatorHelper.onAccountsUpdated(this, null); getMetaData(); mInLocalHeaderSwitch = true; //add by daiwei for tab if (getClass().getName().equals("com.android.settings.Settings")) { setTheme(android.R.style.Theme_Holo_Light_NoActionBar); } //end by daiwei super.onCreate(savedInstanceState); mInLocalHeaderSwitch = false; //For LowCost case, define the list selector by itself if (LC_RAM_SUPPORT) getListView().setSelector(R.drawable.list_selector_holo_dark); if (!onIsHidingHeaders() && onIsMultiPane()) { highlightHeader(mTopLevelHeaderId); // Force the title so that it doesn't get overridden by a direct launch of // a specific settings screen. setTitle(R.string.settings_label); } // Retrieve any saved state if (savedInstanceState != null) { mCurrentHeader = savedInstanceState.getParcelable(SAVE_KEY_CURRENT_HEADER); mParentHeader = savedInstanceState.getParcelable(SAVE_KEY_PARENT_HEADER); } // If the current header was saved, switch to it if (savedInstanceState != null && mCurrentHeader != null) { //switchToHeaderLocal(mCurrentHeader); showBreadCrumbs(mCurrentHeader.title, null); } if (mParentHeader != null) { setParentTitle(mParentHeader.title, null, new OnClickListener() { public void onClick(View v) { switchToParent(mParentHeader.fragment); } }); } // Override up navigation for multi-pane, since we handle it in the fragment breadcrumbs if (onIsMultiPane()) { getActionBar().setDisplayHomeAsUpEnabled(false); getActionBar().setHomeButtonEnabled(false); } //add by daiwei for tab setting if (getClass().getName().equals("com.android.settings.Settings")) { setContentView(R.layout.tab_settings); mTabCursor = (ImageView)findViewById(R.id.tab_cursor); ViewPager viewPager = (ViewPager)findViewById(R.id.pager); viewPager.setAdapter(new ViewPagerAdapter(getFragmentManager())); viewPager.setOnPageChangeListener(mPageChangeListener); mViewPager = viewPager; View tab_general = findViewById(R.id.tab_general); View tab_display = findViewById(R.id.tab_display); tab_general.setOnClickListener(mTabOnClickListener); tab_display.setOnClickListener(mTabOnClickListener); mTabGeneral = (TextView)tab_general; mTabDisplay = (TextView)tab_display; mTabGeneral.setTextColor(COLOR_SELECTED); mTabGeneral.setTextSize(TEXT_SIZE_SELECTED); } //end by daiwei } @Override protected void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); // Save the current fragment, if it is the same as originally launched if (mCurrentHeader != null) { outState.putParcelable(SAVE_KEY_CURRENT_HEADER, mCurrentHeader); } if (mParentHeader != null) { outState.putParcelable(SAVE_KEY_PARENT_HEADER, mParentHeader); } } @Override public void onResume() { super.onResume(); ListAdapter listAdapter = getListAdapter(); if (listAdapter instanceof HeaderAdapter) { ((HeaderAdapter) listAdapter).resume(); } invalidateHeaders(); setActionBarStyle();//add by liweiping 20140210 for bug 173 } //start by liweiping 20140210 for bug 173 /* Set ActionBar with popup function */ protected void setActionBarStyle() { ActionBar actionBar = getActionBar(); if (actionBar == null){ return; } if ( this.toString().contains("SubSettings") ) { actionBar.setDisplayOptions(ActionBar.DISPLAY_HOME_AS_UP, ActionBar.DISPLAY_HOME_AS_UP); actionBar.setDisplayHomeAsUpEnabled(true); } else { actionBar.setDisplayOptions(ActionBar.DISPLAY_HOME_AS_UP ^ ActionBar.DISPLAY_HOME_AS_UP , ActionBar.DISPLAY_HOME_AS_UP); actionBar.setDisplayHomeAsUpEnabled(false); } } //end by liweiping 20140210 @Override public void onPause() { super.onPause(); ListAdapter listAdapter = getListAdapter(); if (listAdapter instanceof HeaderAdapter) { ((HeaderAdapter) listAdapter).pause(); } } private String getRunningActivityName() { ActivityManager activityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE); return activityManager != null ? activityManager.getRunningTasks(1).get(0).topActivity .getClassName() : null; } // fix bug 185285 to avoid jump out of Settings when Locale changed on 20130819 begin /*@Override public void onBackPressed() { if (!moveTaskToBack(false)) { super.onBackPressed(); } }*/ // fix bug 185285 to avoid jump out of Settings when Locale changed on 20130819 end @Override public void onDestroy() { super.onDestroy(); if (mListeningToAccountUpdates) { AccountManager.get(this).removeOnAccountsUpdatedListener(this); } } private void switchToHeaderLocal(Header header) { mInLocalHeaderSwitch = true; switchToHeader(header); mInLocalHeaderSwitch = false; } @Override public void switchToHeader(Header header) { if (!mInLocalHeaderSwitch) { mCurrentHeader = null; mParentHeader = null; } super.switchToHeader(header); } /** * Switch to parent fragment and store the grand parent's info * @param className name of the activity wrapper for the parent fragment. */ private void switchToParent(String className) { final ComponentName cn = new ComponentName(this, className); try { final PackageManager pm = getPackageManager(); final ActivityInfo parentInfo = pm.getActivityInfo(cn, PackageManager.GET_META_DATA); if (parentInfo != null && parentInfo.metaData != null) { String fragmentClass = parentInfo.metaData.getString(META_DATA_KEY_FRAGMENT_CLASS); CharSequence fragmentTitle = parentInfo.loadLabel(pm); Header parentHeader = new Header(); parentHeader.fragment = fragmentClass; parentHeader.title = fragmentTitle; mCurrentHeader = parentHeader; switchToHeaderLocal(parentHeader); highlightHeader(mTopLevelHeaderId); mParentHeader = new Header(); mParentHeader.fragment = parentInfo.metaData.getString(META_DATA_KEY_PARENT_FRAGMENT_CLASS); mParentHeader.title = parentInfo.metaData.getString(META_DATA_KEY_PARENT_TITLE); } } catch (NameNotFoundException nnfe) { Log.w(LOG_TAG, "Could not find parent activity : " + className); } } @Override public void onNewIntent(Intent intent) { super.onNewIntent(intent); // If it is not launched from history, then reset to top-level if ((intent.getFlags() & Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY) == 0 && mFirstHeader != null && !onIsHidingHeaders() && onIsMultiPane()) { switchToHeaderLocal(mFirstHeader); } } private void highlightHeader(int id) { if (id != 0) { Integer index = mHeaderIndexMap.get(id); if (index != null) { getListView().setItemChecked(index, true); getListView().smoothScrollToPosition(index); } } } @Override public Intent getIntent() { Intent superIntent = super.getIntent(); String startingFragment = getStartingFragmentClass(superIntent); // This is called from super.onCreate, isMultiPane() is not yet reliable // Do not use onIsHidingHeaders either, which relies itself on this method if (startingFragment != null && !onIsMultiPane()) { Intent modIntent = new Intent(superIntent); modIntent.putExtra(EXTRA_SHOW_FRAGMENT, startingFragment); Bundle args = superIntent.getExtras(); if (args != null) { args = new Bundle(args); } else { args = new Bundle(); } args.putParcelable("intent", superIntent); modIntent.putExtra(EXTRA_SHOW_FRAGMENT_ARGUMENTS, superIntent.getExtras()); return modIntent; } return superIntent; } /** * Checks if the component name in the intent is different from the Settings class and * returns the class name to load as a fragment. */ protected String getStartingFragmentClass(Intent intent) { if (mFragmentClass != null) return mFragmentClass; String intentClass = intent.getComponent().getClassName(); if (intentClass.equals(getClass().getName())) return null; if ("com.android.settings.ManageApplications".equals(intentClass) || "com.android.settings.RunningServices".equals(intentClass) || "com.android.settings.applications.StorageUse".equals(intentClass)) { // Old names of manage apps. intentClass = com.android.settings.applications.ManageApplications.class.getName(); } return intentClass; } /** * Override initial header when an activity-alias is causing Settings to be launched * for a specific fragment encoded in the android:name parameter. */ @Override public Header onGetInitialHeader() { String fragmentClass = getStartingFragmentClass(super.getIntent()); if (fragmentClass != null) { Header header = new Header(); header.fragment = fragmentClass; header.title = getTitle(); header.fragmentArguments = getIntent().getExtras(); mCurrentHeader = header; return header; } return mFirstHeader; } @Override public Intent onBuildStartFragmentIntent(String fragmentName, Bundle args, int titleRes, int shortTitleRes) { Intent intent = super.onBuildStartFragmentIntent(fragmentName, args, titleRes, shortTitleRes); // some fragments want to avoid split actionbar if (DataUsageSummary.class.getName().equals(fragmentName) || PowerUsageSummary.class.getName().equals(fragmentName) || AccountSyncSettings.class.getName().equals(fragmentName) || UserDictionarySettings.class.getName().equals(fragmentName) || Memory.class.getName().equals(fragmentName) || ManageApplications.class.getName().equals(fragmentName) || WirelessSettings.class.getName().equals(fragmentName) || SoundSettings.class.getName().equals(fragmentName) || PrivacySettings.class.getName().equals(fragmentName) || // SPRD: Modify 20130830 Spreadst of Bug 207441 clipboard can not be called UserDictionaryAddWordFragment.class.getName().equals(fragmentName) || ManageAccountsSettings.class.getName().equals(fragmentName)) { intent.putExtra(EXTRA_CLEAR_UI_OPTIONS, true); } //fix bug 226565 select englisg in userdictoryaddwors, rotate, the language change to chinses on 20131012 begin intent.setClass(this, SubSettings.class); /* // fix bug 194403 to make the activity execute onCreate() method when orientation changed on 20130802 begin Log.i(LOG_TAG,"fragmentName = " + fragmentName); if (UserDictionaryAddWordFragment.class.getName().equals(fragmentName)) { intent.setClass(this, LanguageSubSettings.class); } else { intent.setClass(this, SubSettings.class); } // fix bug 194403 to make the activity execute onCreate() method when orientation changed on 20130802 end */ // fix bug 226565 select englisg in userdictoryaddwors, rotate, the language change to chinses on 20131012 end return intent; } /** * Populate the activity with the top-level headers. */ @Override public void onBuildHeaders(List<Header> headers) { if(UNIVERSEUI_SUPPORT){ loadHeadersFromResource(R.xml.settings_headers_uui, headers); }else{ loadHeadersFromResource(R.xml.settings_headers, headers); } updateHeaderList(headers); } private void updateHeaderList(List<Header> target) { int i = 0; boolean IsSupVoice = Settings.this.getResources().getBoolean(com.android.internal.R.bool. config_voice_capable); while (i < target.size()) { Header header = target.get(i); // Ids are integers, so downcasting int id = (int) header.id; if (id == R.id.dock_settings) { if (!needsDockSettings()) target.remove(header); } else if (id == R.id.operator_settings || id == R.id.manufacturer_settings) { Utils.updateHeaderToSpecificActivityFromMetaDataOrRemove(this, target, header); } else if (id == R.id.wifi_settings) { // Remove WiFi Settings if WiFi service is not available. // Start by changyan 2014.01.02 //if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_WIFI)) { if (!SystemProperties.getBoolean("ro.device.support.wifi", true)) { //End by changyan target.remove(header); } } else if (id == R.id.bluetooth_settings) { //Start by changyan 2014.01.03 // Remove Bluetooth Settings if Bluetooth service is not available. //if ((!getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH)) // || (!mBluetoothEnable)) { if (!SystemProperties.getBoolean("ro.device.support.bt", true)) { //End by changyan target.remove(header); } } else if (id == R.id.data_usage_settings) { // Remove data usage when kernel module not enabled final INetworkManagementService netManager = INetworkManagementService.Stub .asInterface(ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE)); // fix bug 182580 to delete the data usage item of settings on 20130717 begin boolean support_cmcc = SystemProperties.get("ro.operator").equals("cmcc"); try { if (!netManager.isBandwidthControlEnabled() || support_cmcc) { target.remove(header); } } catch (RemoteException e) { // ignored } // fix bug 182580 to delete the data usage item of settings on 20130717 end } else if (id == R.id.account_settings) { int headerIndex = i + 1; i = insertAccountsHeaders(target, headerIndex); } else if (id == R.id.user_settings) { if (!mEnableUserManagement || !UserId.MU_ENABLED || UserId.myUserId() != 0 || !getResources().getBoolean(R.bool.enable_user_management) || Utils.isMonkeyRunning()) { target.remove(header); } } else if (id == R.id.dual_sim_settings) { if (!TelephonyManager.isMultiSim() || (!mVoiceCapable)) { target.remove(header); } } else if (id == R.id.network_preference_settings) { if (!CU_SUPPORT) { target.remove(header); } } else if (id == R.id.sound_settings && IsSupVoice) { target.remove(header); } else if (id == R.id.audio_profiles && !IsSupVoice) { target.remove(header); } // Start by luqiang, topwise, 2014.2.27 [wristwatch config] else if (id == R.id.wristwatch_settings && false == mIsOpenWristwatchCfg) { target.remove(header); } // End by luqiang, topwise, 2014.2.27 [wristwatch config] if (UserId.MU_ENABLED && UserId.myUserId() != 0 && !ArrayUtils.contains(SETTINGS_FOR_RESTRICTED, id)) { target.remove(header); } // Increment if the current one wasn't removed by the Utils code. if (target.get(i) == header) { // Hold on to the first header, when we need to reset to the top-level if (mFirstHeader == null && HeaderAdapter.getHeaderType(header) != HeaderAdapter.HEADER_TYPE_CATEGORY) { mFirstHeader = header; } mHeaderIndexMap.put(id, i); i++; } } } private int insertAccountsHeaders(List<Header> target, int headerIndex) { String[] accountTypes = mAuthenticatorHelper.getEnabledAccountTypes(); List<Header> accountHeaders = new ArrayList<Header>(accountTypes.length); for (String accountType : accountTypes) { if (accountType.startsWith("sprd")) { continue; } CharSequence label = mAuthenticatorHelper.getLabelForType(this, accountType); if (label == null) { continue; } Account[] accounts = AccountManager.get(this).getAccountsByType(accountType); boolean skipToAccount = accounts.length == 1 && !mAuthenticatorHelper.hasAccountPreferences(accountType); Header accHeader = new Header(); accHeader.title = label; if (accHeader.extras == null) { accHeader.extras = new Bundle(); } if (skipToAccount) { accHeader.breadCrumbTitleRes = R.string.account_sync_settings_title; accHeader.breadCrumbShortTitleRes = R.string.account_sync_settings_title; accHeader.fragment = AccountSyncSettings.class.getName(); accHeader.fragmentArguments = new Bundle(); // Need this for the icon accHeader.extras.putString(ManageAccountsSettings.KEY_ACCOUNT_TYPE, accountType); accHeader.extras.putParcelable(AccountSyncSettings.ACCOUNT_KEY, accounts[0]); accHeader.fragmentArguments.putParcelable(AccountSyncSettings.ACCOUNT_KEY, accounts[0]); } else { accHeader.breadCrumbTitle = label; accHeader.breadCrumbShortTitle = label; accHeader.fragment = ManageAccountsSettings.class.getName(); accHeader.fragmentArguments = new Bundle(); accHeader.extras.putString(ManageAccountsSettings.KEY_ACCOUNT_TYPE, accountType); accHeader.fragmentArguments.putString(ManageAccountsSettings.KEY_ACCOUNT_TYPE, accountType); if (!isMultiPane()) { accHeader.fragmentArguments.putString(ManageAccountsSettings.KEY_ACCOUNT_LABEL, label.toString()); } } accountHeaders.add(accHeader); } // Sort by label Collections.sort(accountHeaders, new Comparator<Header>() { @Override public int compare(Header h1, Header h2) { return h1.title.toString().compareTo(h2.title.toString()); } }); for (Header header : accountHeaders) { target.add(headerIndex++, header); } if (!mListeningToAccountUpdates) { AccountManager.get(this).addOnAccountsUpdatedListener(this, null, true); mListeningToAccountUpdates = true; } return headerIndex; } private boolean needsDockSettings() { return getResources().getBoolean(R.bool.has_dock_settings); } private void getMetaData() { try { ActivityInfo ai = getPackageManager().getActivityInfo(getComponentName(), PackageManager.GET_META_DATA); if (ai == null || ai.metaData == null) return; mTopLevelHeaderId = ai.metaData.getInt(META_DATA_KEY_HEADER_ID); mFragmentClass = ai.metaData.getString(META_DATA_KEY_FRAGMENT_CLASS); // Check if it has a parent specified and create a Header object final int parentHeaderTitleRes = ai.metaData.getInt(META_DATA_KEY_PARENT_TITLE); String parentFragmentClass = ai.metaData.getString(META_DATA_KEY_PARENT_FRAGMENT_CLASS); if (parentFragmentClass != null) { mParentHeader = new Header(); mParentHeader.fragment = parentFragmentClass; if (parentHeaderTitleRes != 0) { mParentHeader.title = getResources().getString(parentHeaderTitleRes); } } } catch (NameNotFoundException nnfe) { // No recovery } } @Override public boolean hasNextButton() { return super.hasNextButton(); } @Override public Button getNextButton() { return super.getNextButton(); } private static class HeaderAdapter extends ArrayAdapter<Header> { static final int HEADER_TYPE_CATEGORY = 0; static final int HEADER_TYPE_NORMAL = 1; static final int HEADER_TYPE_SWITCH = 2; private static final int HEADER_TYPE_COUNT = HEADER_TYPE_SWITCH + 1; // Start by luqiang, topwise, 2014.2.27 [wristwatch config] private final WristwatchEnabler mWristwatchEnabler; // End by luqiang, topwise, 2014.2.27 [wristwatch config] private final WifiEnabler mWifiEnabler; private final BluetoothEnabler mBluetoothEnabler; private AuthenticatorHelper mAuthHelper; private static class HeaderViewHolder { ImageView icon; TextView title; TextView summary; Switch switch_; } private LayoutInflater mInflater; static int getHeaderType(Header header) { if (header.fragment == null && header.intent == null) { return HEADER_TYPE_CATEGORY; // Start by luqiang, topwise, 2014.2.27 [wristwatch config] } else if (header.id == R.id.wifi_settings || header.id == R.id.bluetooth_settings || header.id == R.id.wristwatch_settings) { // End by luqiang, topwise, 2014.2.27 [wristwatch config] return HEADER_TYPE_SWITCH; } else { return HEADER_TYPE_NORMAL; } } @Override public int getItemViewType(int position) { Header header = getItem(position); return getHeaderType(header); } @Override public boolean areAllItemsEnabled() { return false; // because of categories } @Override public boolean isEnabled(int position) { return getItemViewType(position) != HEADER_TYPE_CATEGORY; } @Override public int getViewTypeCount() { return HEADER_TYPE_COUNT; } @Override public boolean hasStableIds() { return true; } public HeaderAdapter(Context context, List<Header> objects, AuthenticatorHelper authenticatorHelper) { super(context, 0, objects); mAuthHelper = authenticatorHelper; mInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); // Temp Switches provided as placeholder until the adapter replaces these with actual // Switches inflated from their layouts. Must be done before adapter is set in super mWifiEnabler = new WifiEnabler(context, new Switch(context)); mBluetoothEnabler = new BluetoothEnabler(context, new Switch(context)); // Start by luqiang, topwise, 2014.2.27 [wristwatch config] mWristwatchEnabler = new WristwatchEnabler(context, new Switch(context)); // End by luqiang, topwise, 2014.2.27 [wristwatch config] } @Override public View getView(int position, View convertView, ViewGroup parent) { HeaderViewHolder holder; Header header = getItem(position); int headerType = getHeaderType(header); View view = null; if (convertView == null) { holder = new HeaderViewHolder(); switch (headerType) { case HEADER_TYPE_CATEGORY: view = new TextView(getContext(), null, android.R.attr.listSeparatorTextViewStyle); holder.title = (TextView) view; break; case HEADER_TYPE_SWITCH: view = mInflater.inflate(R.layout.preference_header_switch_item, parent, false); holder.icon = (ImageView) view.findViewById(R.id.icon); holder.title = (TextView) view.findViewById(com.android.internal.R.id.title); holder.summary = (TextView) view.findViewById(com.android.internal.R.id.summary); holder.switch_ = (Switch) view.findViewById(R.id.switchWidget); break; case HEADER_TYPE_NORMAL: view = mInflater.inflate( R.layout.preference_header_item, parent, false); holder.icon = (ImageView) view.findViewById(R.id.icon); holder.title = (TextView) view.findViewById(com.android.internal.R.id.title); holder.summary = (TextView) view.findViewById(com.android.internal.R.id.summary); break; } view.setTag(holder); } else { view = convertView; holder = (HeaderViewHolder) view.getTag(); } // All view fields must be updated every time, because the view may be recycled switch (headerType) { case HEADER_TYPE_CATEGORY: holder.title.setText(header.getTitle(getContext().getResources())); break; case HEADER_TYPE_SWITCH: // Would need a different treatment if the main menu had more switches if (header.id == R.id.wifi_settings) { mWifiEnabler.setSwitch(holder.switch_); // Start by luqiang, topwise, 2014.2.27 [wristwatch config] } else if (header.id == R.id.wristwatch_settings) { mWristwatchEnabler.setSwitch(holder.switch_); // End by luqiang, topwise, 2014.2.27 [wristwatch config] } else { mBluetoothEnabler.setSwitch(holder.switch_); } // No break, fall through on purpose to update common fields //$FALL-THROUGH$ case HEADER_TYPE_NORMAL: if (header.extras != null && header.extras.containsKey(ManageAccountsSettings.KEY_ACCOUNT_TYPE)) { String accType = header.extras.getString( ManageAccountsSettings.KEY_ACCOUNT_TYPE); ViewGroup.LayoutParams lp = holder.icon.getLayoutParams(); lp.width = getContext().getResources().getDimensionPixelSize( R.dimen.header_icon_width); lp.height = lp.width; holder.icon.setLayoutParams(lp); Drawable icon = mAuthHelper.getDrawableForType(getContext(), accType); holder.icon.setImageDrawable(icon); } else { holder.icon.setImageResource(header.iconRes); } holder.title.setText(header.getTitle(getContext().getResources())); //fix bug 210641 the text of "backup and reset" not appropriate ,when os did not support backup on 2013.9.4 start if(header.id == R.id.privacy_settings) { if (getContext().getPackageManager().resolveContentProvider(GSETTINGS_PROVIDER, 0) == null) { holder.title.setText(getContext().getResources().getText(R.string.privacy_settings)); } } //fix bug 210641 the text of "backup and reset" not appropriate ,when os did not support backup on 2013.9.4 end CharSequence summary = header.getSummary(getContext().getResources()); if (!TextUtils.isEmpty(summary)) { holder.summary.setVisibility(View.VISIBLE); holder.summary.setText(summary); } else { holder.summary.setVisibility(View.GONE); } break; } return view; } public void resume() { mWifiEnabler.resume(); mBluetoothEnabler.resume(); // Start by luqiang, topwise, 2014.2.27 [wristwatch config] mWristwatchEnabler.resume(); // End by luqiang, topwise, 2014.2.27 [wristwatch config] } public void pause() { mWifiEnabler.pause(); mBluetoothEnabler.pause(); // Start by luqiang, topwise, 2014.2.27 [wristwatch config] mWristwatchEnabler.pause(); // End by luqiang, topwise, 2014.2.27 [wristwatch config] } } @Override public void onHeaderClick(Header header, int position) { boolean revert = false; if (header.id == R.id.account_add) { revert = true; } //start,added by topwise hehuadong in 2014.01.16 if (TopwiseProp.getDefaultSettingString("default_customize_about_device")!=null){ if (header != null && header.fragment != null && header.fragment.equals("com.android.settings.DeviceInfoSettings")){ header.fragment="com.android.settings.AboutDeviceSettings"; } } //end,added by topwise hehuadong in 2014.01.16 super.onHeaderClick(header, position); if (revert && mLastHeader != null) { // fix bug 200478 to avoid list scroll when account_add item selected on 20130810 begin //highlightHeader((int) mLastHeader.id); // fix bug 200478 to avoid list scroll when account_add item selected on 20130810 end } else { mLastHeader = header; } } @Override public boolean onPreferenceStartFragment(PreferenceFragment caller, Preference pref) { // Override the fragment title for Wallpaper settings int titleRes = pref.getTitleRes(); if (pref.getFragment().equals(WallpaperTypeSettings.class.getName())) { titleRes = R.string.wallpaper_settings_fragment_title; } startPreferencePanel(pref.getFragment(), pref.getExtras(), titleRes, pref.getTitle(), null, 0); return true; } public boolean shouldUpRecreateTask(Intent targetIntent) { return super.shouldUpRecreateTask(new Intent(this, Settings.class)); } @Override public void setListAdapter(ListAdapter adapter) { if (adapter == null) { super.setListAdapter(null); } else { super.setListAdapter(new HeaderAdapter(this, getHeaders(), mAuthenticatorHelper)); } } @Override public void onAccountsUpdated(Account[] accounts) { mAuthenticatorHelper.onAccountsUpdated(this, accounts); invalidateHeaders(); } //add by daiwei for tab settings static final int COLOR_SELECTED = 0xff0b984c; static final int COLOR_UNSELECTED = 0xff000000; static final int TEXT_SIZE_SELECTED = 18; static final int TEXT_SIZE_UNSELECTED = 16; private ImageView mTabCursor = null; private ViewPager mViewPager = null; private TextView mTabGeneral = null; private TextView mTabDisplay = null; private OnPageChangeListener mPageChangeListener = new OnPageChangeListener() { @Override public void onPageScrollStateChanged(int state) { if (state == ViewPager.SCROLL_STATE_IDLE) { mTabCursor.setX(mViewPager.getCurrentItem() * mTabCursor.getWidth()); } } @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { if (positionOffset == 0.0f) return; mTabCursor.setX(positionOffset * mTabCursor.getWidth()); } @Override public void onPageSelected(int position) { if (0 == position) { mTabGeneral.setTextColor(COLOR_SELECTED); mTabGeneral.setTextSize(TEXT_SIZE_SELECTED); mTabDisplay.setTextColor(COLOR_UNSELECTED); mTabDisplay.setTextSize(TEXT_SIZE_UNSELECTED); } else if (1 == position) { mTabGeneral.setTextColor(COLOR_UNSELECTED); mTabGeneral.setTextSize(TEXT_SIZE_UNSELECTED); mTabDisplay.setTextColor(COLOR_SELECTED); mTabDisplay.setTextSize(TEXT_SIZE_SELECTED); } } }; public class ViewPagerAdapter extends FragmentPagerAdapter { public ViewPagerAdapter(FragmentManager fm) { super(fm); } @Override public Fragment getItem(int position) { switch(position) { case 0: return new SettingsFragment(); case 1: return new DisplaySettings(); } return null; } @Override public int getCount() { return 2; } } private OnClickListener mTabOnClickListener = new OnClickListener() { @Override public void onClick(View v) { if (v.getId() == R.id.tab_general) { mViewPager.setCurrentItem(0); } else if (v.getId() == R.id.tab_display) { mViewPager.setCurrentItem(1); } } }; //end by daiwei /* * Settings subclasses for launching independently. */ public static class BluetoothSettingsActivity extends Settings { /* empty */ } public static class WirelessSettingsActivity extends Settings { /* empty */ } public static class TetherSettingsActivity extends Settings { /* empty */ } public static class VpnSettingsActivity extends Settings { /* empty */ } public static class DateTimeSettingsActivity extends Settings { /* empty */ } public static class StorageSettingsActivity extends Settings { /* empty */ } public static class WifiSettingsActivity extends Settings { /* empty */ } public static class WifiP2pSettingsActivity extends Settings { /* empty */ } public static class InputMethodAndLanguageSettingsActivity extends Settings { /* empty */ } public static class KeyboardLayoutPickerActivity extends Settings { /* empty */ } public static class InputMethodAndSubtypeEnablerActivity extends Settings { /* empty */ } public static class SpellCheckersSettingsActivity extends Settings { /* empty */ } public static class LocalePickerActivity extends Settings { /* empty */ } public static class UserDictionarySettingsActivity extends Settings { /* empty */ } public static class SoundSettingsActivity extends Settings { /* empty */ } public static class DisplaySettingsActivity extends Settings { /* empty */ } public static class DeviceInfoSettingsActivity extends Settings { /* empty */ } public static class ApplicationSettingsActivity extends Settings { /* empty */ } public static class ManageApplicationsActivity extends Settings { /* empty */ } public static class StorageUseActivity extends Settings { /* empty */ } public static class DevelopmentSettingsActivity extends Settings { /* empty */ } public static class AccessibilitySettingsActivity extends Settings { /* empty */ } public static class SecuritySettingsActivity extends Settings { /* empty */ } public static class LocationSettingsActivity extends Settings { /* empty */ } public static class PrivacySettingsActivity extends Settings { /* empty */ } public static class DockSettingsActivity extends Settings { /* empty */ } public static class RunningServicesActivity extends Settings { /* empty */ } public static class ManageAccountsSettingsActivity extends Settings { /* empty */ } public static class PowerUsageSummaryActivity extends Settings { /* empty */ } public static class AccountSyncSettingsActivity extends Settings { /* empty */ } public static class AccountSyncSettingsInAddAccountActivity extends Settings { /* empty */ } public static class CryptKeeperSettingsActivity extends Settings { /* empty */ } public static class DeviceAdminSettingsActivity extends Settings { /* empty */ } public static class DataUsageSummaryActivity extends Settings { /* empty */ } public static class AdvancedWifiSettingsActivity extends Settings { /* empty */ } public static class TextToSpeechSettingsActivity extends Settings { /* empty */ } public static class AndroidBeamSettingsActivity extends Settings { /* empty */ } } 本文转自mfrbuaa博客园博客，原文链接：http://www.cnblogs.com/mfrbuaa/p/5032416.html，如需转载请自行联系原作者
