/********************************************************************* * I.MX6 Android 移除 Settings wifi功能 * 说明： * 本文主要记录如何修改Android Settings中的主选项，初衷是有些 * 设置并不是我们需要，隐藏掉还是比较好的。 * * 2016-3-5 深圳 南山平山村 曾剑锋 ********************************************************************/ 参考文档： 1. Android Settings开发之修改 http://blog.csdn.net/wangjinyu501/article/details/22077803 2. Android Settings和SettingsProvider源码分析与修改 http://www.cncoders.net/article/11633/ 3. 何时使用 Preference Headers http://blog.csdn.net/ixiaobu/article/details/8609935 一、cat packages/apps/Settings/AndroidManifest.xml ...... <!-- Settings --> <activity android:name="Settings" ------+ android:label="@string/settings_label_launcher" | android:taskAffinity="com.android.settings" | android:launchMode="singleTask"> | <intent-filter> | <action android:name="android.intent.action.MAIN" /> | <action android:name="android.settings.SETTINGS" /> | <category android:name="android.intent.category.DEFAULT" /> | <category android:name="android.intent.category.LAUNCHER" /> | </intent-filter> | </activity> | ...... | | 二、cat packages/apps/Settings/src/com/android/settings/Settings.java <---+ ...... /** * Populate the activity with the top-level headers. */ @Override public void onBuildHeaders(List<Header> headers) { loadHeadersFromResource(R.xml.settings_headers, headers); | updateHeaderList(headers); | } | ...... | V 三、cat packages/apps/Settings/res/xml/settings_headers.xml ...... <!-- Wifi --> <!-- <header android:id="@+id/wifi_settings" android:fragment="com.android.settings.wifi.WifiSettings" android:title="@string/wifi_settings_title" android:icon="@drawable/ic_settings_wireless" /> --> ...... 四、error: 1. error 1： 1. 现象： ...... make: Entering directory `/home/myzr/myandroid' target R.java/Manifest.java: Settings (out/target/common/obj/APPS/Settings_intermediates/src/R.stamp) /home/myzr/myandroid/packages/apps/Settings/AndroidManifest.xml:138: error: Error: No resource found that matches the given name (at 'resource' with value '@id/wifi_settings'). /home/myzr/myandroid/packages/apps/Settings/AndroidManifest.xml:151: error: Error: No resource found that matches the given name (at 'resource' with value '@id/wifi_settings'). /home/myzr/myandroid/packages/apps/Settings/AndroidManifest.xml:197: error: Error: No resource found that matches the given name (at 'resource' with value '@id/wifi_settings'). make: *** [out/target/common/obj/APPS/Settings_intermediates/src/R.stamp] Error 1 make: Leaving directory `/home/myzr/myandroid' 2. 解决办法： cat packages/apps/Settings/AndroidManifest.xml ...... <!-- Top-level settings --> <!-- <activity android:name="Settings$WifiSettingsActivity" android:taskAffinity="" android:label="@string/wifi_settings" android:configChanges="orientation|keyboardHidden|screenSize" android:excludeFromRecents="true"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <action android:name="android.settings.WIFI_SETTINGS" /> <category android:name="android.intent.category.DEFAULT" /> <category android:name="android.intent.category.VOICE_LAUNCH" /> <category android:name="com.android.settings.SHORTCUT" /> </intent-filter> <meta-data android:name="com.android.settings.FRAGMENT_CLASS" android:value="com.android.settings.wifi.WifiSettings" /> <meta-data android:name="com.android.settings.TOP_LEVEL_HEADER_ID" android:resource="@id/wifi_settings" /> </activity> --> <!-- Keep compatibility with old shortcuts. --> <!-- <activity-alias android:name=".wifi.WifiSettings" android:taskAffinity="com.android.settings" android:label="@string/wifi_settings" android:targetActivity="Settings$WifiSettingsActivity" android:configChanges="orientation|keyboardHidden|screenSize" android:exported="true"> <meta-data android:name="com.android.settings.FRAGMENT_CLASS" android:value="com.android.settings.wifi.WifiSettings" /> <meta-data android:name="com.android.settings.TOP_LEVEL_HEADER_ID" android:resource="@id/wifi_settings" /> </activity-alias> <activity android:name=".wifi.WifiPickerActivity" android:taskAffinity="com.android.settings" android:parentActivityName="Settings"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <action android:name="android.net.wifi.PICK_WIFI_NETWORK" /> <category android:name="android.intent.category.DEFAULT" /> </intent-filter> </activity> <activity android:name=".wifi.WifiSetupActivity" android:theme="@style/setup_wizard_theme" android:label="@string/wifi_setup_wizard_title" android:icon="@drawable/empty_icon" android:clearTaskOnLaunch="true"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <action android:name="com.android.net.wifi.SETUP_WIFI_NETWORK" /> <category android:name="android.intent.category.DEFAULT" /> </intent-filter> </activity> <activity android:name=".wifi.WifiSettingsForSetupWizardXL" android:theme="@android:style/Theme.Holo.NoActionBar" android:screenOrientation="behind" android:clearTaskOnLaunch="true" android:windowSoftInputMode="adjustResize" android:exported="true" /> <activity android:name="Settings$AdvancedWifiSettingsActivity" android:taskAffinity="com.android.settings" android:label="@string/wifi_advanced_settings_label" android:configChanges="orientation|keyboardHidden|screenSize" android:parentActivityName="Settings$WifiSettingsActivity"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <action android:name="android.settings.WIFI_IP_SETTINGS" /> <category android:name="android.intent.category.VOICE_LAUNCH" /> <category android:name="android.intent.category.DEFAULT" /> </intent-filter> <meta-data android:name="com.android.settings.FRAGMENT_CLASS" android:value="com.android.settings.wifi.AdvancedWifiSettings" /> <meta-data android:name="com.android.settings.TOP_LEVEL_HEADER_ID" android:resource="@id/wifi_settings" /> <meta-data android:name="com.android.settings.PARENT_FRAGMENT_TITLE" android:resource="@string/wifi_settings" /> <meta-data android:name="com.android.settings.PARENT_FRAGMENT_CLASS" android:value="com.android.settings.Settings$WifiSettingsActivity" /> </activity> --> ...... 2. error 2: 1. 现象： ...... No private recovery resources for TARGET_DEVICE sabresd_6dq make: Entering directory `/home/myzr/myandroid' target R.java/Manifest.java: Settings (out/target/common/obj/APPS/Settings_intermediates/src/R.stamp) (skipping file '.settings_headers.xml.swp' due to ANDROID_AAPT_IGNORE pattern '.*') target Java: Settings (out/target/common/obj/APPS/Settings_intermediates/classes) /home/myzr/myandroid/packages/apps/Settings/src/com/android/settings/Settings.java:431: cannot find symbol symbol : variable wifi_settings location: class com.android.settings.R.id } else if (id == R.id.wifi_settings) { ^ /home/myzr/myandroid/packages/apps/Settings/src/com/android/settings/Settings.java:602: cannot find symbol symbol : variable wifi_settings location: class com.android.settings.R.id } else if (header.id == R.id.wifi_settings || header.id == R.id.bluetooth_settings) { ^ /home/myzr/myandroid/packages/apps/Settings/src/com/android/settings/Settings.java:700: cannot find symbol symbol : variable wifi_settings location: class com.android.settings.R.id if (header.id == R.id.wifi_settings) { ^ Note: Some input files use or override a deprecated API. Note: Recompile with -Xlint:deprecation for details. Note: Some input files use unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. 3 errors make: *** [out/target/common/obj/APPS/Settings_intermediates/classes-full-debug.jar] Error 41 make: Leaving directory `/home/myzr/myandroid' 2. 解决办法： cat packages/apps/Settings/src/com/android/settings/Settings.java ...... // Show only these settings for restricted users private int[] SETTINGS_FOR_RESTRICTED = { R.id.wireless_section, //R.id.wifi_settings, R.id.bluetooth_settings, R.id.data_usage_settings, R.id.wireless_settings, R.id.device_section, R.id.sound_settings, R.id.display_settings, R.id.storage_settings, R.id.application_settings, R.id.battery_settings, R.id.personal_section, R.id.location_settings, R.id.security_settings, R.id.language_settings, R.id.user_settings, R.id.account_settings, R.id.account_add, R.id.system_section, R.id.date_time_settings, R.id.about_settings, R.id.accessibility_settings } ...... private void updateHeaderList(List<Header> target) { while (i < target.size()) { Header header = target.get(i); // Ids are integers, so downcasting int id = (int) header.id; if (id == R.id.operator_settings || id == R.id.manufacturer_settings) { Utils.updateHeaderToSpecificActivityFromMetaDataOrRemove(this, target, header); } /** annotation this part else if (id == R.id.wifi_settings) { // Remove WiFi Settings if WiFi service is not available. if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_WIFI)) { target.remove(i); } } */ else if (id == R.id.bluetooth_settings) { // Remove Bluetooth Settings if Bluetooth service is not available. if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH)) { target.remove(i); } } else if (id == R.id.data_usage_settings) { ...... ...... } ...... private static class HeaderAdapter extends ArrayAdapter<Header> { ...... static int getHeaderType(Header header) { if (header.fragment == null && header.intent == null) { return HEADER_TYPE_CATEGORY; } else if ( /** annotation this part header.id == R.id.wifi_settings || */ header.id == R.id.bluetooth_settings) { return HEADER_TYPE_SWITCH; } else { return HEADER_TYPE_NORMAL; } } ...... } ...... @Override public View getView(int position, View convertView, ViewGroup parent) { ...... // 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 /** annotation this part if (header.id == R.id.wifi_settings) { mWifiEnabler.setSwitch(holder.switch_); } 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())); 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; } ...... } ......