Try giving the IOIOLibAndroidDevice library the same treatment. Maybe that
was the one that had the problem. Commenting out XML file uses the
<!-- this is now ignored -->
syntax.
On Feb 23, 2016 11:03 PM, "Ilan Tal" <[email protected]> wrote:
> Thanks for the reply Ytai.
> First I added oracle jdk 7. Apparently something is different in Linux as
> the method you suggested simply doesn't exist on my machine. Never mind, I
> did manage to find where it set the jdk and I changed it from 8 to 7.
> I erased the entire applications folder under ioio505 and copied it over
> again. This promises that I will start from a clean slate. I had to import
> the project into Android studio, but now that jdk 7 was available, it no
> longer complained about my SDK. That was an improvement. I again verified
> that it was using jdk 7 and not 8.
>
> I commented out 'com.github.ytai.ioio:IOIOLibAndroidAccessory:5.05'. I
> wasn't successful in commenting out
>
> android:name="android.hardware.usb.action.USB_ACCESSORY_ATTACHED"
> android:resource="@xml/accessory_filter" />
> so I just deleted the lines. That solved the compilation problem. Still,
> absolutely nothing changed when I ran the program.
>
> Yesterday I visited a friend with a Windows machine. He plugged in my ioio
> and his machine "worked" on my board, i.e. it didn't crash. The program
> showed the button, but nothing happened when you pressed the button. It was
> clear what was happening: no ioioBrdige was in place and it wasn't talking
> to the ioio board.
> That gave me an idea what to check here. I would run HelloIOIO without the
> ioioBridge and see if it wouldn't crash. It crashed in exactly the same
> way. Both my machine and the Windows machine were using emulators, so the
> problem doesn't seem to be the emulator. It probably has something to do
> with Linux, perhaps the driver which I installed. I don't have any Windows
> machines here. I threw out Windows 10 years ago.
>
> I think it is somehow trying to tell us that the problem is before we
> actually connect to the board, i.e. I get the same error whether or not I
> use ioioBridge.
> Let's look at the error message again.
>
> 02-24 06:31:03.460 8183-8183/ioio.examples.hello
> I/IOIOBaseApplicationHelper: Using IOIOLib version: IOIO0505
> 02-24 06:31:03.460 8183-8183/ioio.examples.hello D/IOIOConnectionRegistry:
> Successfully added bootstrap class:
> ioio.lib.impl.SocketIOIOConnectionBootstrap
> 02-24 06:31:03.460 8183-8183/ioio.examples.hello D/IOIOConnectionRegistry:
> Bootstrap class not found:
> ioio.lib.android.accessory.AccessoryConnectionBootstrap. Not adding.
> 02-24 06:31:03.460 8183-8183/ioio.examples.hello E/BluetoothAdapter:
> Bluetooth binder is null
> 02-24 06:31:03.460 8183-8183/ioio.examples.hello D/IOIOConnectionRegistry:
> No runtime support for:
> ioio.lib.android.bluetooth.BluetoothIOIOConnectionBootstrap. Not adding.
> 02-24 06:31:03.460 8183-8183/ioio.examples.hello D/IOIOConnectionRegistry:
> Successfully added bootstrap class:
> ioio.lib.android.device.DeviceConnectionBootstrap
> 02-24 06:31:03.460 8183-8183/ioio.examples.hello
> V/DeviceConnectionBootstrap: onCreate()
> 02-24 06:31:03.770 8183-8183/ioio.examples.hello
> V/DeviceConnectionBootstrap: open()
> 02-24 06:31:03.770 8183-8183/ioio.examples.hello
> V/DeviceConnectionBootstrap: state <= WAIT_DEVICE_ATTACHED
> 02-24 06:31:03.770 8183-8183/ioio.examples.hello D/AndroidRuntime:
> Shutting down VM
> 02-24 06:31:03.770 8183-8183/ioio.examples.hello E/AndroidRuntime: FATAL
> EXCEPTION: main
>
> Process: ioio.examples.hello, PID: 8183
>
> java.lang.RuntimeException: Unable to start activity
> ComponentInfo{ioio.examples.hello/ioio.examples.hello.MainActivity}:
> java.lang.NullPointerException: Attempt to invoke interface method 'void
> android.hardware.usb.IUsbManager.getDeviceList(android.os.Bundle)' on a
> null object reference
> at
> android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
> at
> android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
>
> There is something wrong with IUsbManager. Where is this object located?
> How do I know if it is in the SDK, or wherever else it is supposed to be?
> Is there any way I can check that it exists?
>
> Thanks for the help,
> Ilan
>
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