Auto Hide when Android-baseband version is unknown

Android5.1

When the machine is not brushed into the baseband, in the Settings-about tablet, the Baseband version column displays unknown

You now want to not show this column when the baseband version is unknown

Refer to the Android5.1 wallpaper source option with two "wallpapers" option, which shows that these settings are dynamically loaded fragment

First find the place to load about the tablet

packages/apps/settings/src/com/android/settings/ Deviceinfosettings.java

You can see the public class deviceinfosettings extends settingspreferencefragment Implements indexable

Find information about baseband

Private Static FinalString key_baseband_version = "Baseband_version";..... setvaluesummary (key_baseband_version,"Gsm.version.baseband");......//Remove Baseband version if wifi-only deviceif(Utils.iswifionly (Getactivity ())) {
Getpreferencescreen (). Removepreference (Findpreference (key_baseband_version));} ......Private voidsetvaluesummary (string preference, string property) {Try{findpreference (preference). Setsummary (Systemproperties.get (Property,getresources (). getString (r.string.        (Device_info_default))); } Catch(RuntimeException e) {//No Recovery        }    }

WiFi only, non-SIM-enabled machines are not showing baseband versions

Setvaluesummary, took the R.string.device_info_default

Search Device_info_default can be "unknown", "Unknown" and so on.

Add the criteria for deleting baseband, refer to the method used in Setvaluesummary

    Private Boolean Isnobaseband () {        //  Add this method to determine the baseband version        return  systemproperties.get (KEY _baseband_version,                            getresources (). getString (R.string.device_info_default))                            . Equals (Getresources ().　　GetString (R.string.device_info_default));    }  //  Remove Baseband version if wifi-only device plus a judging condition   if (utils.iswifionly (Getactivity ()) | | Isnobaseband ()) {        getpreferencescreen (). Removepreference (Findpreference (key_baseband_version));        }

Never use a specific string to determine

such as this:

Systemproperties.get (Key_baseband_version,getresources (). getString (R.string.device_info_default))
. Equals ("Unknown")

If you change a system language, for example, to Chinese, then this judgment will expire.

After the modification is complete, the compilation push goes in, you can see the effect

Auto Hide when Android-baseband version is unknown