Android RIL 调试问题分析 ——系统篇（3）

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发布于 2022-11-15 16:05:57

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发布于 2022-11-15 16:05:57

文章被收录于专栏：高通\展锐\MTK等平台调试高通\展锐\MTK等平台调试

安卓开机拨号成功图标显示空三角

问题描述

Android高概率开机后注网拨号OK，ping服务器OK，信号栏图标显示空三角。

原因分析

模块注册状态广播后，安卓上层没有监听到;非ril问题。

解决方法

修改android 系统frameworks层

（1）在安卓如下目录下找到NetworkControllerImpl.java文件做如下修改

<Android>/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/ policy/NetworkControllerImpl.java
public void onReceive(Context context, Intent intent) {
   ...
    else if (action.equals(TelephonyIntents.ACTION_SERVICE_STATE_CHANGED)) {
            mLastServiceState = ServiceState.newFromBundle(intent.getExtras());
            if (mMobileSignalControllers.size() == 0) {
                // If none of the subscriptions are active, we might need to recalculate
                // emergency state.
                recalculateEmergency();
            }
            for (int i = 0; i < mMobileSignalControllers.size(); i++) {
                MobileSignalController controller = mMobileSignalController s.valueAt(i);
                controller.handleBroadcast(intent);
            }
        } else {
  ...
}

（2）在安卓如下目录下找到MobileSignalController.java文件做如下修改

修改/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/ policy/MobileSignalController.java
public void handleBroadcast(Intent intent) {
  ...
  else if (action.equals(TelephonyIntents.ACTION_DEFAULT_DATA_SUBSCRIPTION _CHANGED)) {
            updateDataSim();
            notifyListenersIfNecessary();
       // }
   // }
       }else if(action.equals(TelephonyIntents.ACTION_SERVICE_STATE_CHANG ED)){
            ServiceState mLastServiceState = ServiceState.newFromBundle (intent.getExtras());
            if(mLastServiceState != null && (mServiceState == null || mService 
State.getVoiceRegState() != mLastServiceState.getVoiceRegState())){
            //Log.v(TAG,"handleBroadcast mLastServiceState:"+mLastService State .getVoiceRegState());
                   mServiceState = mLastServiceState;
                   updateTelephony();
                }
             }
        }