Android Code Snippet System Information

I have put together a collection of code pieces into a simple app to read the system information.

Most of the code comes from the forums and important snippets are credited in the code itself.

I have spent a lot of time with this and have learned a lot. Thanks to NJDude and DonManfred for extra help.

If anything here can help you, then feel free to use.

B4A 3.80
Libraries: ABWifi 1.20, Animation 1.02, Core 3.80, Network 1.25, OSLibrary 1.40, Phone 2.25, ScrollView2D 1.03

Tags: System, Information, Wifi, Battery, DPI, Map, List
 

Attachments

  • Sysinfo3.zip
    8.3 KB · Views: 631

masterleous

Member
Licensed User
Longtime User
downloaded your source code and run on my device and got got following error while start up. i tried 2-3 times but got same result
B4X:
Error occurred on line: 31 (s1)
java.lang.ArrayIndexOutOfBoundsException     at mr.apps.sysinfo3.s1._pe_batterychanged(s1.java:133)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:507)
    at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:636)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:302)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:238)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:507)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:121)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:159)
    at anywheresoftware.b4a.phone.PhoneEvents$ActionHandler$1.run(PhoneEvents.java:321)
    at android.os.Handler.handleCallback(Handler.java:587)
    at android.os.Handler.dispatchMessage(Handler.java:92)
    at android.os.Looper.loop(Looper.java:130)
    at android.app.ActivityThread.main(ActivityThread.java:3687)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:507)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
    at dalvik.system.NativeStart.main(Native Method)
 

Mark Read

Well-Known Member
Licensed User
Longtime User
try running the rapid debugger and put a breakpoint in line 30 in sub S1. When stopped, check the values in variable props.

Works fine with me on Android 2.2, 2.3 and 4.2.2
 

Mark Read

Well-Known Member
Licensed User
Longtime User
Update: Included Android Version (code from DKCERT) and sensor information (code from Johan Schoeman)

Still got an error but cannot find the cause.
 

Attachments

  • Sysinfo3-10.zip
    10.3 KB · Views: 511

Rusty

Well-Known Member
Licensed User
Longtime User
You might want to check the code on line 268. I may be reading it incorrectly, but:
B4X:
If MyLan.GetMyIP = "127.0.0.1" Then
    r = False
Else
    r = True
End If
instead of:
If MyLan.GetMyIP = "127.0.0.1" Then r = True
Let me know if this isn't correct.
Also, I removed the "If r=True Then 'Only continue if wifi is connected" so I could see any wifi SSID's that are out there if the WiFi radio is on, but NOT connected to an SSID.
Great utility.
Rusty
 

khosrwb

Active Member
Licensed User
Longtime User
Update: Included Android Version (code from DKCERT) and sensor information (code from Johan Schoeman)

Still got an error but cannot find the cause.

hi
when I run your code I get to this error::(

B4X:
Compiling generated Java code.  Error
B4A line: 290
SysList3.AddTwoLines(\
javac 1.8.0_102
src\mr\apps\sysinfo3\main.java:633: error: cannot find symbol
mostCurrent._syslist3.AddTwoLines("Display logical density (DPI)",BA.NumberToString(mostCurrent._sys.densityDpi()));
  ^
  symbol:  method densityDpi()
  location: variable _sys of type OSLibrary
 

Mark Read

Well-Known Member
Licensed User
Longtime User
Have you added the OSLibrary in the Libraries Tab? Mine is version 1.40. Otherwise I cannot duplicate this error.
 

khosrwb

Active Member
Licensed User
Longtime User
yes
Capture.PNG
 

Attachments

  • Capture.PNG
    Capture.PNG
    108.6 KB · Views: 225

Mark Read

Well-Known Member
Licensed User
Longtime User
I am using this code in B4A 3.80 and 5.02, both without problems. However only in normal Release mode.

I can see no logical reason why line 290 should not work. SOrry I cannot help further.

Aside from all that, the code is from early 2015. Things have changed since then and there may be better ways to read data.
 
Top