5、SIM卡插入后更新图标流程

PhoneState 创建成功了并存到集合中，当收到 setMobileDataIndicators()回调后

给 PhoneState 成员变量赋值，赋值结束通过apply()更新

还记得上面说过的 apply() 中更新SIM卡图标的逻辑吧，

遍历 mPhoneStates 集合，调用PhoneState的apply()将成员变量值设置给对应的控件

int firstMobileTypeId = 0;
    for (PhoneState state : mPhoneStates) {
        if (state.apply(anyMobileVisible)) {
            if (!anyMobileVisible) {
                firstMobileTypeId = state.mMobileTypeId;
                anyMobileVisible = true;
            }
        }
    }

那么 setMobileDataIndicators() 是从哪里回调过来的呢？

分析找到 MobileSignalController 中的 notifyListeners()

vendor\mediatek\proprietary\packages\apps\SystemUI\src\com\android\systemui\statusbar\policy\MobileSignalController.java

@Override
public void notifyListeners(SignalCallback callback) {
  //获取资源ID组
    MobileIconGroup icons = getIcons();
    String contentDescription = getStringIfExists(getContentDescription());
    String dataContentDescription = getStringIfExists(icons.mDataContentDescription);
  //移动数据是否开启
    final boolean dataDisabled = mCurrentState.iconGroup == TelephonyIcons.DATA_DISABLED
            && mCurrentState.userSetup;
    /// M: Customize the signal strength icon id. @ {
  //当前手机信号格数资源ID
    int iconId = getCurrentIconId();
  //用户可自定义的资源ID，该方法将目前的iconId原值赋给了iconID，如需定制可在此修改
    iconId = mStatusBarExt.getCustomizeSignalStrengthIcon(
                mSubscriptionInfo.getSubscriptionId(),
                iconId,
                mSignalStrength,
                mDataNetType,
                mServiceState);
    /// @ }
    // Show icon in QS when we are connected or data is disabled.
  //是否显示移动数据图标
    boolean showDataIcon = mCurrentState.dataConnected || dataDisabled;
  //是否显示 mobileGroup、信号格数、SIM卡信息描述
    IconState statusIcon = new IconState(mCurrentState.enabled && !mCurrentState.airplaneMode,
            iconId, contentDescription);
    int qsTypeIcon = 0;
    IconState qsIcon = null;
    String description = null;
    // Only send data sim callbacks to QS.
    if (mCurrentState.dataSim) {
        qsTypeIcon = showDataIcon ? icons.mQsDataType : 0;
        qsIcon = new IconState(mCurrentState.enabled
                && !mCurrentState.isEmergency, getQsCurrentIconId(), contentDescription);
    //状态栏显示只能拨打紧急电话或当前的网络类型
        description = mCurrentState.isEmergency ? null : mCurrentState.networkName;
    }
  //数据下行
    boolean activityIn = mCurrentState.dataConnected
            && !mCurrentState.carrierNetworkChangeMode
            && mCurrentState.activityIn;
  //数据上行
    boolean activityOut = mCurrentState.dataConnected
            && !mCurrentState.carrierNetworkChangeMode
            && mCurrentState.activityOut;
    showDataIcon &= mCurrentState.isDefault || dataDisabled;
  //移动数据类型资源ID，关闭是X，打开是小的网络类型4G/3G/2G
    int typeIcon = showDataIcon ? icons.mDataType : 0;
    /// M: Add for lwa.
    typeIcon = mCurrentState.lwaRegState == NetworkTypeUtils.LWA_STATE_CONNCTED
            && showDataIcon ? NetworkTypeUtils.LWA_ICON : typeIcon;
    /** M: Support [Network Type on StatusBar], change the implement methods.
      * Get the network icon base on service state.
      * Add one more parameter for network type.
      * @ { **/
  //当前网络类型资源ID
    int networkIcon = mCurrentState.networkIcon;
    /// M: Support volte icon.Bug fix when airplane mode is on go to hide volte icon
  //VOlTE资源ID
    int volteIcon = mCurrentState.airplaneMode && !isImsOverWfc()
            ? 0 : mCurrentState.volteIcon;
    /// M: when data disabled, common show data icon as x, but op do not need show it @ {
    mStatusBarExt.isDataDisabled(mSubscriptionInfo.getSubscriptionId(), dataDisabled);
    /// @ }
    /// M: Customize the data type icon id. @ {
  //可自定义移动数据类型资源ID（比如常见的上下箭头）
    typeIcon = mStatusBarExt.getDataTypeIcon(
                    mSubscriptionInfo.getSubscriptionId(),
                    typeIcon,
                    mDataNetType,
                    mCurrentState.dataConnected ? TelephonyManager.DATA_CONNECTED :
                        TelephonyManager.DATA_DISCONNECTED,
                    mServiceState);
    /// @ }
    /// M: Customize the network type icon id. @ {
  //可自定义网络类型资源ID
    networkIcon = mStatusBarExt.getNetworkTypeIcon(
                    mSubscriptionInfo.getSubscriptionId(),
                    networkIcon,
                    mDataNetType,
                    mServiceState);
    callback.setMobileDataIndicators(statusIcon, qsIcon, typeIcon, networkIcon, volteIcon,
            qsTypeIcon,activityIn, activityOut, dataContentDescription, description,
             icons.mIsWide, mSubscriptionInfo.getSubscriptionId(), mCurrentState.roaming);
    /// M: update plmn label @{
    mNetworkController.refreshPlmnCarrierLabel();
    /// @}
}

这个方法比较重要，上面写了简单的注释，接下来我们会详细看下每个资源ID都是如何获取的？

在这之前我们先介绍下几个重要的 Bean 类

vendor\mediatek\proprietary\packages\apps\SystemUI\src\com\android\systemui\statusbar\policy\SignalController.java

State

static class State {
    boolean connected;
    boolean enabled;
    boolean activityIn;
    boolean activityOut;
    int level;
    IconGroup iconGroup;
    int inetCondition;
    int rssi;
  ...
}

IconGroup

static class IconGroup {
    final int[][] mSbIcons;
    final int[][] mQsIcons;
    final int[] mContentDesc;
    final int mSbNullState;
    final int mQsNullState;
    final int mSbDiscState;
    final int mQsDiscState;
    final int mDiscContentDesc;
    // For logging.
    final String mName;
  ....
}

vendor\mediatek\proprietary\packages\apps\SystemUI\src\com\android\systemui\statusbar\policy\MobileSignalController.java

MobileState

static class MobileState extends SignalController.State {
    String networkName;//当前网络类型
    String networkNameData;//移动数据网络类型
    boolean dataSim;
    boolean dataConnected;//数据是否连接
    boolean isEmergency;//是否是紧急电话模式
    boolean airplaneMode;//是否是飞行模式
    boolean carrierNetworkChangeMode;//SIM卡网络类型是否改变
    boolean isDefault;
    boolean userSetup;//是否是用户操作
    boolean roaming;//是否漫游
    /// M: Add for 4G+W
    int lwaRegState = NetworkTypeUtils.LWA_STATE_UNKNOWN;
    /// M: For network type big icon.
    int networkIcon;//网络类型大图标资源ID
    /// M: Add for data network type.
    int dataNetType;//移动数据网络类型
    /// M: Add for op network tower type.
    int customizedState;//自定义状态
    /// M: Add for op signal strength tower icon.
    int customizedSignalStrengthIcon;//自定义信号格资源ID
    /// M: Add for volte @{
    int imsRegState = ServiceState.STATE_POWER_OFF;
    int imsCap;
    int volteIcon;//volte资源ID
  ......  
}

MobileIconGroup

static class MobileIconGroup extends SignalController.IconGroup {
    final int mDataContentDescription; // mContentDescriptionDataType
    final int mDataType;//移动数据网络类型资源ID
    final boolean mIsWide;
    final int mQsDataType;//下拉快捷访问资源
  ...   
}

好了重要的Bean类介绍完了，接下来又要说一个重要的方法了 updateTelephony()

还是在 MobileSignalController.java 中

private final void updateTelephony() {
    if (DEBUG && FeatureOptions.LOG_ENABLE) {
        Log.d(mTag, "updateTelephonySignalStrength: hasService=" + hasService()
                + " ss=" + mSignalStrength);
    }
  //连接状态，是否在服务中
    mCurrentState.connected = hasService() && mSignalStrength != null;
    handleIWLANNetwork();
    if (mCurrentState.connected) {
    //SIM 卡信号格数级别 0~4格
        if (!mSignalStrength.isGsm() && mConfig.alwaysShowCdmaRssi) {
            mCurrentState.level = mSignalStrength.getCdmaLevel();
        } else {
            mCurrentState.level = mSignalStrength.getLevel();
        }
        /// M: Customize the signal strength level. @ {
    //客户可自定义
        mCurrentState.level = mStatusBarExt.getCustomizeSignalStrengthLevel(
                mCurrentState.level, mSignalStrength, mServiceState);
        /// @ }
    }
  //当前网络类型获取对应的图标组
    if (mNetworkToIconLookup.indexOfKey(mDataNetType) >= 0) {
        mCurrentState.iconGroup = mNetworkToIconLookup.get(mDataNetType);
    } else {
        mCurrentState.iconGroup = mDefaultIcons;
    }
    /// M: Add for data network type.
  //数据网络类型
    mCurrentState.dataNetType = mDataNetType;
  //数据状态
    mCurrentState.dataConnected = mCurrentState.connected
            && mDataState == TelephonyManager.DATA_CONNECTED;
    /// M: Add for op network tower type.
    mCurrentState.customizedState = mStatusBarExt.getCustomizeCsState(mServiceState,
            mCurrentState.customizedState);
    /// M: Add for op signal strength tower icon.
    mCurrentState.customizedSignalStrengthIcon = mStatusBarExt.getCustomizeSignalStrengthIcon(
            mSubscriptionInfo.getSubscriptionId(),
            mCurrentState.customizedSignalStrengthIcon,
            mSignalStrength,
            mDataNetType,
            mServiceState);
    mCurrentState.roaming = isRoaming();
    if (isCarrierNetworkChangeActive()) {
        mCurrentState.iconGroup = TelephonyIcons.CARRIER_NETWORK_CHANGE;
    } else if (isDataDisabled()) {//数据未打开，对应x
        mCurrentState.iconGroup = TelephonyIcons.DATA_DISABLED;
    }
    if (isEmergencyOnly() != mCurrentState.isEmergency) {
        mCurrentState.isEmergency = isEmergencyOnly();
        mNetworkController.recalculateEmergency();
    }
    // Fill in the network name if we think we have it.
  //当前网络运营商
    if (mCurrentState.networkName == mNetworkNameDefault && mServiceState != null
            && !TextUtils.isEmpty(mServiceState.getOperatorAlphaShort())) {
        mCurrentState.networkName = mServiceState.getOperatorAlphaShort();
    }
    /// M: For network type big icon. 网络类型大图标
    mCurrentState.networkIcon =
        NetworkTypeUtils.getNetworkTypeIcon(mServiceState, mConfig, hasService());
    /// M: For volte type icon. volte图标
    mCurrentState.volteIcon = getVolteIcon();
  //通知更新，最终回调到notifyListeners()中
    notifyListenersIfNecessary();
}

基本上获取资源ID的方法都在 updateTelephony()中了，那么都在那里调用了 updateTelephony()?

MobileSignalController中构造方法初始化了 MobilePhoneStateListener 分别监听了

mPhone.listen(mPhoneStateListener,
PhoneStateListener.LISTEN_SERVICE_STATE//服务状态改变，可用、不可用
        | PhoneStateListener.LISTEN_SIGNAL_STRENGTHS//信号强度改变，用于获取dbm、asu
        | PhoneStateListener.LISTEN_CALL_STATE//电话状态改变，空闲、来电、通话
        | PhoneStateListener.LISTEN_DATA_CONNECTION_STATE//数据网络连接状态，网络断开、正在连接中、已连接上
        | PhoneStateListener.LISTEN_DATA_ACTIVITY//数据上下行状态
        | PhoneStateListener.LISTEN_CARRIER_NETWORK_CHANGE);//网络状态发送改变
class MobilePhoneStateListener extends PhoneStateListener {
    public MobilePhoneStateListener(int subId, Looper looper) {
        super(subId, looper);
    }
    @Override
    public void onSignalStrengthsChanged(SignalStrength signalStrength) {
        ...
        updateTelephony();
    }
    @Override
    public void onServiceStateChanged(ServiceState state) {
        ...
        updateTelephony();
    }
    @Override
    public void onDataConnectionStateChanged(int state, int networkType) {
        ...
        updateTelephony();
    }
    @Override
    public void onDataActivity(int direction) {
        ...
        setActivity(direction);
    }
    @Override
    public void onCarrierNetworkChange(boolean active) {
       ...
        updateTelephony();
    }
    /// M: Add for Plugin feature. @{
    @Override
    public void onCallStateChanged(int state, String incomingNumber) {
        ...
        updateTelephony();
    }
    /// @}
};

LISTEN_SIGNAL_STRENGTHS、LISTEN_CALL_STATE、LISTEN_CARRIER_NETWORK_CHANGE

这三个监听应该是我们平常用较多的，好了说了这么久，接下来重要看获取资源ID的具体方法了

5.1、Vlote资源ID

mCurrentState.volteIcon = getVolteIcon();
private int getVolteIcon() {
    int icon = 0;
    if (isImsOverWfc()) {
        boolean needShowWfcSysIcon = mStatusBarExt.needShowWfcIcon();
        if (needShowWfcSysIcon) {
            icon = NetworkTypeUtils.WFC_ICON;
        }
    } else if (isImsOverVoice() && isLteNetWork()) {
        if (mCurrentState.imsRegState == ServiceState.STATE_IN_SERVICE) {
      //volte可用
            icon = NetworkTypeUtils.VOLTE_ICON;
        } else if(FeatureOptions.MTK_CT_MIXED_VOLTE_SUPPORT &&
            SIMHelper.isSecondaryCSIMForMixedVolte(mSubscriptionInfo.getSubscriptionId()) &&
            mCurrentState.imsRegState == ServiceState.STATE_OUT_OF_SERVICE) {
            if (DEBUG) {
                Log.d(mTag, "set dis volte icon");
            }//volte不可用
            icon = NetworkTypeUtils.VOLTE_DIS_ICON;
        }
    }
    /// M: add for disconnected volte feature. @{
    mStatusBarExt.setImsRegInfo(mSubscriptionInfo.getSubscriptionId(),
            mCurrentState.imsRegState, isImsOverWfc(), isImsOverVoice());
    /// @}
    return icon;
}

vendor\mediatek\proprietary\packages\apps\SystemUI\src\com\mediatek\systemui\statusbar\networktype\NetworkTypeUtils.java

public static final int VOLTE_ICON = R.drawable.stat_sys_volte;

5.2、网络类型大图标资源ID

vendor\mediatek\proprietary\packages\apps\SystemUI\src\com\mediatek\systemui\statusbar\networktype\NetworkTypeUtils.java

mCurrentState.networkIcon =
        NetworkTypeUtils.getNetworkTypeIcon(mServiceState, mConfig, hasService());
public static int getNetworkTypeIcon(ServiceState serviceState, Config config,
        boolean hasService) {
    if (!hasService) {
        // Not in service, no network type. 未注册成功，比如废卡、停机卡
        return 0;
    }
  //通过 serviceState 获取当前注册的网络类型
    int tempNetworkType = getNetworkType(serviceState);
    Integer iconId = sNetworkTypeIcons.get(tempNetworkType);
    if (iconId == null) {
        iconId = tempNetworkType == TelephonyManager.NETWORK_TYPE_UNKNOWN ? 0 :
                 config.showAtLeast3G ? R.drawable.stat_sys_network_type_3g :
                                        R.drawable.stat_sys_network_type_g;
    }
    return iconId.intValue();
}
private static int getNetworkType(ServiceState serviceState) {
    int type = TelephonyManager.NETWORK_TYPE_UNKNOWN;
    if (serviceState != null) {
        type = serviceState.getDataNetworkType() != TelephonyManager.NETWORK_TYPE_UNKNOWN ?
                serviceState.getDataNetworkType() : serviceState.getVoiceNetworkType();
    }
    return type;
}
//网络类型-资源ID    4g/3g/2g/e/1x
static final Map<Integer, Integer> sNetworkTypeIcons = new HashMap<Integer, Integer>() {
    {
        // For CDMA 3G
        put(TelephonyManager.NETWORK_TYPE_EVDO_0, R.drawable.stat_sys_network_type_3g);
        put(TelephonyManager.NETWORK_TYPE_EVDO_A, R.drawable.stat_sys_network_type_3g);
        put(TelephonyManager.NETWORK_TYPE_EVDO_B, R.drawable.stat_sys_network_type_3g);
        put(TelephonyManager.NETWORK_TYPE_EHRPD, R.drawable.stat_sys_network_type_3g);
        // For CDMA 1x
        put(TelephonyManager.NETWORK_TYPE_CDMA, R.drawable.stat_sys_network_type_1x);
        put(TelephonyManager.NETWORK_TYPE_1xRTT, R.drawable.stat_sys_network_type_1x);
        // Edge
        put(TelephonyManager.NETWORK_TYPE_EDGE, R.drawable.stat_sys_network_type_e);
        // 3G
        put(TelephonyManager.NETWORK_TYPE_UMTS, R.drawable.stat_sys_network_type_3g);
        // For 4G
        put(TelephonyManager.NETWORK_TYPE_LTE, R.drawable.stat_sys_network_type_4g);
        // 3G
        put(TelephonyManager.NETWORK_TYPE_HSDPA, R.drawable.stat_sys_network_type_3g);
        put(TelephonyManager.NETWORK_TYPE_HSUPA, R.drawable.stat_sys_network_type_3g);
        put(TelephonyManager.NETWORK_TYPE_HSPA, R.drawable.stat_sys_network_type_3g);
        put(TelephonyManager.NETWORK_TYPE_HSPAP, R.drawable.stat_sys_network_type_3g);
        put(TelephonyManager.NETWORK_TYPE_IWLAN, 0);
    }
};

5.3、移动数据类型资源ID

//mNetworkToIconLookup 和上面的网络类型 Map有点类似，键都是网络类型，
//不同的是，这次的key是上面介绍过的 MobileIconGroup
if (mNetworkToIconLookup.indexOfKey(mDataNetType) >= 0) {
    mCurrentState.iconGroup = mNetworkToIconLookup.get(mDataNetType);
} else {
    mCurrentState.iconGroup = mDefaultIcons;
}
if (isCarrierNetworkChangeActive()) {
    mCurrentState.iconGroup = TelephonyIcons.CARRIER_NETWORK_CHANGE;
} else if (isDataDisabled()) {
    mCurrentState.iconGroup = TelephonyIcons.DATA_DISABLED;
}

vendor\mediatek\proprietary\packages\apps\SystemUI\src\com\android\systemui\statusbar\policy\TelephonyIcons.java

class TelephonyIcons {
  //***** Data connection icons
  //状态栏快捷访问，其实和下面的差多不
    static final int QS_DATA_G = R.drawable.ic_qs_signal_g;
    static final int QS_DATA_3G = R.drawable.ic_qs_signal_3g;
    static final int QS_DATA_E = R.drawable.ic_qs_signal_e;
    static final int QS_DATA_H = R.drawable.ic_qs_signal_h;
    static final int QS_DATA_1X = R.drawable.ic_qs_signal_1x;
    static final int QS_DATA_4G = R.drawable.ic_qs_signal_4g;
    static final int QS_DATA_4G_PLUS = R.drawable.ic_qs_signal_4g_plus;
    static final int QS_DATA_LTE = R.drawable.ic_qs_signal_lte;
    static final int QS_DATA_LTE_PLUS = R.drawable.ic_qs_signal_lte_plus;
    static final int FLIGHT_MODE_ICON = R.drawable.stat_sys_airplane_mode;
  //此处的图标为小图标，网络类型
    static final int ICON_LTE = R.drawable.stat_sys_data_fully_connected_lte;
    static final int ICON_LTE_PLUS = R.drawable.stat_sys_data_fully_connected_lte_plus;
    static final int ICON_G = R.drawable.stat_sys_data_fully_connected_g;
    static final int ICON_E = R.drawable.stat_sys_data_fully_connected_e;
    static final int ICON_H = R.drawable.stat_sys_data_fully_connected_h;
    static final int ICON_3G = R.drawable.stat_sys_data_fully_connected_3g;
    static final int ICON_4G = R.drawable.stat_sys_data_fully_connected_4g;
    static final int ICON_4G_PLUS = R.drawable.stat_sys_data_fully_connected_4g_plus;
    static final int ICON_1X = R.drawable.stat_sys_data_fully_connected_1x;
  //流量未打开
    static final int ICON_DATA_DISABLED = R.drawable.stat_sys_data_disabled;
    static final int QS_ICON_DATA_DISABLED = R.drawable.ic_qs_data_disabled;
  ...
  static final MobileIconGroup DATA_DISABLED = new MobileIconGroup(
        "DataDisabled",
        null,
        null,
        AccessibilityContentDescriptions.PHONE_SIGNAL_STRENGTH,
        0, 0,
        0,
        0,
        AccessibilityContentDescriptions.PHONE_SIGNAL_STRENGTH[0],
        R.string.accessibility_cell_data_off,
        TelephonyIcons.ICON_DATA_DISABLED,//这个值对应的就是 移动数据类型资源ID
        false,
        TelephonyIcons.QS_ICON_DATA_DISABLED
        );
}

MobileIconGroup 的倒数第三个参数就是移动数据类型资源ID

5.4、信号格数资源ID

if (mCurrentState.connected) {
        if (!mSignalStrength.isGsm() && mConfig.alwaysShowCdmaRssi) {
            mCurrentState.level = mSignalStrength.getCdmaLevel();
        } else {
            mCurrentState.level = mSignalStrength.getLevel();
        }
        /// M: Customize the signal strength level. @ {
        mCurrentState.level = mStatusBarExt.getCustomizeSignalStrengthLevel(
                mCurrentState.level, mSignalStrength, mServiceState);
        /// @ }
 }

信号格数对应的是 SignalDrawable，通过 setLevel()来控制显示几格，其实以上的大部分资源ID都是

通过 Vector 标签绘制而来的，里面都是一堆 path，开始看可能会觉得很迷糊，可以把xml文件拷贝到

AS中进行预览，再学上一些基础语法就可对简单的图形进行自定义修改。比方说6.0的信号格数是通过

vector 绘制的，格与格之间是有间隔，而8.1是通过 SignalDrawable绘制，是一个填满的三角形

修改前样式

修改后样式

来看下 mSignalStrength.getLevel() 方法

frameworks/base/telephony/java/android/telephony/SignalStrength.java

    public int getLevel() {
    int level = 0;
    if (isGsm) { //移动或联通卡
        level = getLteLevel(); //首先获取4G信号格
        if (level == SIGNAL_STRENGTH_NONE_OR_UNKNOWN) { //未获取到
            level = getTdScdmaLevel(); //获取移动或联通的3G信号格
            if (level == SIGNAL_STRENGTH_NONE_OR_UNKNOWN) {//仍然未获取
                level = getGsmLevel(); //获取移动或联通的2G信号格
            }
        }
    } else {//电信
        int cdmaLevel = getCdmaLevel(); //获取电信2G信号格
        int evdoLevel = getEvdoLevel(); //获取电信3G信号格
        if (evdoLevel == SIGNAL_STRENGTH_NONE_OR_UNKNOWN) {
            /* We don't know evdo, use cdma */
            level = cdmaLevel;
        } else if (cdmaLevel == SIGNAL_STRENGTH_NONE_OR_UNKNOWN) {
            /* We don't know cdma, use evdo */
            level = evdoLevel;
        } else {
            /* We know both, use the lowest level */
            level = cdmaLevel < evdoLevel ? cdmaLevel : evdoLevel;
        }
    }
    if (DBG) log("getLevel=" + level);
    return level;
}

在此介绍下手机是几模的配置：GSM是移动和联通公用的band；LTE从编码方式上分为TDD和FDD，从频段上分有各种不同的band

移动：GSM、TDSCDMA、LTE(TDD)

联通：GSM、WCDMA、LTE(FDD)

电信：CDMA、EVDO、LTE(FDD)

因此如果手机支持GSM、WCDMA、TDSCDMA、TDD-LTE、FDD-LTE 这是五模；加上 CDMA、EVDO 就是七模

5.5、漫游资源ID R.drawable.stat_sys_roaming

大写的R

三、总结

信号栏的定制还是很容易的，只要理清楚了控件和对应的回调逻辑，加上日志打印，就能搞定你想要的效果。

四、相关资源

这里附上我定制使用的drawable文件，CSDN有点坑啊，我想传免费的来着，非要给我设置5分，好吧，只好换平台改链接免费下载

drawable.zip

Android8.1 MTK平台 SystemUI源码分析之网络信号栏显示刷新（下）

5、SIM卡插入后更新图标流程

5.1、Vlote资源ID

5.2、网络类型大图标资源ID

5.3、移动数据类型资源ID

5.4、信号格数资源ID

5.5、漫游资源ID R.drawable.stat_sys_roaming

三、总结

四、相关资源

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Android8.1 MTK平台 SystemUI源码分析之 网络信号栏显示刷新（下）

5、SIM卡插入后更新图标流程

5.1、Vlote资源ID

5.2、网络类型大图标资源ID

5.3、移动数据类型资源ID

5.4、信号格数资源ID

5.5、漫游资源ID R.drawable.stat_sys_roaming

三、总结

四、相关资源

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Android8.1 MTK平台 SystemUI源码分析之网络信号栏显示刷新（下）