Android 7.1 双卡双待机器，首选网络类型设置 详细分析
首次由preferred_network_mode转换成preferred_network_mode1和preferred_network_mode2是在SubscriptionInfoUpdater类中的handleSimLoaded方法
我们机器设备默认的是：
[ro.telephony.default_network]: [22,20]
但是双sim卡，会对网络进行设置，会有一个设置的过程：
类->方法流程
click选择某张运营商卡为主卡：
IExtTelephony extTelephony =
IExtTelephony.Stub.asInterface(ServiceManager.getService("extphone"));
extTelephony.setPrimaryCardOnSlot(targetSub);
调用ExtTelephony的setPrimaryCardOnSlot方法
-》ExtTelephonyServiceImpl
-》setPrimaryCardOnSlot()
-》QtiPrimaryCardController.getInstance().setPrimaryCardOnSlot(slotId);
-》QtiPrimaryCardController
-》setPrimaryCardOnSlot()
-》synchronized private void setPrimaryCardOnSlot(int primarySlotId, Message msg)
-》在setPrimaryCardOnSlot方法中：
mPrefNwModes = mPriorityHandler.getNwModesFromConfig(primarySlotId);
//通过getNwModesFromConfig获取两种网络模式
for (int i = 0; i < QtiPrimaryCardUtils.PHONE_COUNT; i++) {
saveNwModesToDB(mPrefNwModes[i], i); //保存到数据库重要的一步
}
-》QtiPrimaryCardPriorityHandler
-》getNwModesFromConfig()
-》
for (int i = 0; i < QtiPrimaryCardUtils.PHONE_COUNT; i++) {
if (mCurrPriorityConfigs[i] != null) {
prefNwModes[i] = (i == primarySlotId) ? mCurrPriorityConfigs[i].network1 :
mCurrPriorityConfigs[i].network2;
//获取该类中的mCurrPriorityConfigs的network1和network2
} else {
prefNwModes[i] = defaultNwMode;
}
}
-》而mCurrPriorityConfigs的计算和获取是通过：
-》loadCurrentPriorityConfigs()
-》
public void loadCurrentPriorityConfigs(boolean override) {
if(!mLoadingConfigCompleted) {
logd("getPrefPrimarySlot: All Config Loading not done. EXIT!!!");
return;
}
if(override || !mLoadingCurrentConfigsDone) {
//get Current Priority config applicable for each slot
for (int i = 0; i < QtiPrimaryCardUtils.PHONE_COUNT; i++) {
mCurrPriorityConfigs[i] = getPriorityConfig(i);
}
mLoadingCurrentConfigsDone = true;
}
}
-》getPriorityConfig()
-》PriorityConfig pConfig = mAllPriorityConfigs.get(i);
-》 private HashMap mAllPriorityConfigs =
new HashMap();
从mAllPriorityConfigs 这个HashMap中来
-》在初始化的时候：
QtiPrimaryCardPriorityHandler(Context context){
mContext = context;
mCurrPriorityConfigs = new PriorityConfig[QtiPrimaryCardUtils.PHONE_COUNT];
tm = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE);
readPriorityConfigFromXml();
}
-》readPriorityConfigFromXml()
-》
private void readPriorityConfigFromXml() {
XmlResourceParser parser = null;
try {
Resources res = mContext.getPackageManager().getResourcesForApplication(packageName);
if (res == null) loge("res is null");
int resId = res.getIdentifier(QtiPrimaryCardUtils.getConfigXml(), "xml", packageName);
parser = res.getXml(resId);
//Clear all old configs from hash map.
mAllPriorityConfigs.clear();
mPriorityCount = 0;
XmlUtils.beginDocument(parser, "priority_config");
//2TODO: here we can read the operator config and feed it to pcutils
XmlUtils.nextElement(parser);
while (parser.getEventType() != XmlPullParser.END_DOCUMENT) {
savePriorityConfig(parser);
XmlUtils.nextElement(parser);
}
mLoadingConfigCompleted = true;
} catch (Exception e) {
Rlog.e(LOG_TAG, "Exception while reading priority configs: " + e.getMessage(), e);
mLoadingConfigCompleted = false;
} finally {
logi("mAllPriorityConfigs: " + mAllPriorityConfigs);
if (parser != null) {
parser.close();
}
}
}
-》是从QtiPrimaryCardUtils.getConfigXml()中读取xml文件
-》xml的文件名分别是：
public static String getConfigXml() {
if (isBitSetInConfig(ConfigBits.PRIORITY_CONFIG_3)) {
return "priority_config_3";
} else if (isBitSetInConfig(ConfigBits.PRIORITY_CONFIG_2)) {
return "priority_config_2";
} else if (isBitSetInConfig(ConfigBits.PRIORITY_CONFIG_1)) {
return "priority_config_1";
}
return "priority_config_2";
}
-》打开xml文件：
config_3:
config_2:
config_1: