三方app跳转APN设置提示“此用户无权修改接入点名称设置”解决方案

三方APP跳转设置APN时，发现会提示如下

开始还以为是系统本身的问题，从网上搜索也看到很多人在问这个问题，但是从设置菜单点击进入的却没有“无权修改”的这个提示，看到这就放心多了。于是确定跟踪设置apn的这部分代码

com.android.settings.ApnSettings

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        getEmptyTextView().setText(R.string.apn_settings_not_available);
        mUnavailable = isUiRestricted();
        setHasOptionsMenu(!mUnavailable);
        if (mUnavailable) {
            addPreferencesFromResource(R.xml.placeholder_prefs);
            return;
        }

        addPreferencesFromResource(R.xml.apn_settings);
    }

此用户无权修改接入点名称设置这个提示就是通过getEmptyTextView().setText(R.string.apn_settings_not_available)来显示出来的

通过LOG可以看到mSubscriptionInfo = SubscriptionManager.from(activity).getActiveSubscriptionInfo(subId);这个mSubscriptionInfo为Null,导致后面的都获取不到SIM卡的相关信息，具体原因可能和context有关，这个没具体跟踪。最终修改的地方

mSubscriptionInfo = SubscriptionManager.from(activity).getActiveSubscriptionInfo(subId);

修改为

        SubscriptionManager mSubscriptionManager = (SubscriptionManager) getSystemService(Context.TELEPHONY_SUBSCRIPTION_SERVICE);
        List<SubscriptionInfo> activeSubscriptionInfoList = null;
        if (mSubscriptionManager != null) {
            try {
                activeSubscriptionInfoList = mSubscriptionManager.getActiveSubscriptionInfoList();
            } catch (Exception ignored) {
            }
        }
        if (activeSubscriptionInfoList != null && activeSubscriptionInfoList.size() > 0) {
            for (SubscriptionInfo subscriptionInfo : activeSubscriptionInfoList) {
            	mSubscriptionInfo = subscriptionInfo;//我的为单卡
            }
        }

 

本文地址：https://blog.csdn.net/andylao62/article/details/107950139