主屏幕设置（Home settings）
<Preference
android:key="homescreen_management"
android:title="@string/wios_feature_display_home_screen_management_title"
android:icon="@drawable/ic_home_settings_wios">
<intent
android:action="android.intent.action.MAIN"
android:targetPackage="com.wiko.launcherq"
android:targetClass="com.wiko.settings.SettingsActivity" />
</Preference>
点击后通过intent，打开com.wiko.launcher.lightq（WikoLauncherQ_GO）应用，路径在
vendor/tinno/myos/apps/WikoLauncherQ_GO，在订单目录下决定是否添加
vendor/tinno/product/k560/wik_fr/packages/apps/wiko_common.mk
ApeSaleTrackerWiko \
WikoDynomicPreload \
WikoLauncherQ_GO \
指示灯（indicator lamp）
指示灯主要指是ApeHighLights这个应用，从配置文件可以看到它的targetClass是HintlightsActivity
<Preference
android:key="indicator_lamp"
android:title="@string/wios_feature_display_indicator_lamp_title"
android:icon="@drawable/ic_indicator_lamp_wios" >
<intent android:targetPackage="com.tinno.hightlights"
android:targetClass="com.tinno.hightlights.HintlightsActivity"/>
在HintlightsActivity做的事比较少，主要就是替换HintLightsSettings这个fragment。
getFragmentManager().beginTransaction().replace(android.R.id.content,new HintLightsSettings()).commit();
vendor/tinno/common/packages/apps/ApeHighLights/src/com/tinno/hightlights/HintLightsSettings.java
// Send Broadcast where Received in NotifcationManagerService to update light status.
mHandler.post(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
Intent intent = new Intent("action.hintlights.SWITCH_CHANGED");
intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
getActivity().sendBroadcastAsUser(intent, UserHandle.ALL);
Log.i(TAG, "action.hintlights.SWITCH_CHANGED");
}
});
这个类主要就是管理指示灯的界面，初始化CheckBoxPreference的状态，监听CheckBoxPreference的点击事件，然后发送intent为action.hintlights.SWITCH_CHANGED的广播，在服务里面更改light status。
HintLights的主要功能也是由express2.0来实现的，
vendor/tinno/common/express20/modules/hintlights/src/main/java/express20/hintlights/LightsController.java
public static final String ACTION_HINTLIGHTS_SWITCH_CHANGED ="action.hintlights.SWITCH_CHANGED";
else if (action.equals(ACTION_HINTLIGHTS_SWITCH_CHANGED)) {
mUserSwitch = Settings.System.getInt(mContentResolver, LIGHTS_SWITCH, 0x0000);
updateLightsOnce();
}
// Update hint light through calling a method of class Light which called
// method setLightLocked() in the end.
private void updateLightsOnce() {
Utils.getMethodInvokeNoArgs(mHintLight, "turnOff");
//return (obj == null) ? "" : (String)obj;
// mHintLight.turnOff();
}
根据注释知道，通过Light最后会调用setLightLocked()方法，他们在：
frameworks/base/services/core/java/com/android/server/lights
但是因为express2.0，通过hideApi的方式调用，所以最后在
vendor/tinno/common/express20/modules/hintlights/hideApi/src/express20/hide路径下。
（导航栏）navigation_bar_settings
<Preference
android:key="navigation_bar_settings"
android:title="@string/nav_bar_title"
android:icon="@drawable/ic_navigation_bar_wios"
>
</Preference>
src/com/android/settings/wiosfeature/Utils.java在这个类中，定义了这个Preference的字符串：
public static final String KEY_WIOS_FEATURE_DISPLAY_NAV_BUTTON_SETTING = "navigation_bar_settings";
在WiosFeatureDashboardFragment的showDialogToDownLoadApp方法中：
case Utils.KEY_WIOS_FEATURE_DISPLAY_NAV_BUTTON_SETTING:
android.util.Log.e("laiyan","---->");
//TINNO BEGIN, add for KFGAQWKA-387
//Common.startNavSelect(getActivity());
NavigationBarSettingsDialog.show(this);
//TINNO END
break;
在NavigationBarSettingsDialog.java中，监听了导航栏切换的点击事件
public void onClick(View v) {
resetRadio();
int id = v.getId();
int index = 0;
switch (id) {
case R.id.key_back_home_recent:
case R.id.key_back_home_recent_rb:
index = NAVIGATION_TYPE_1;
mRadio1.setChecked(true);
setNavBarDisplayType(index);
Log.d(TAG, "R.id.key_back_home_recent");
break;
case R.id.key_recent_home_back:
case R.id.key_recent_home_back_rb:
index = NAVIGATION_TYPE_2;
mRadio2.setChecked(true);
setNavBarDisplayType(index);
Log.d(TAG, "R.id.key_recent_home_back");
break;
然后会通过ContentResolver将状态保存
private void setNavBarDisplayType(int type) {
Settings.System.putInt(getContext().getContentResolver(), NAV_BAR_DIAPLAY_TYPE, type);
}
可以通过adb shell settings get system statusbar_nav_bar_type来查看这个属性的值
