Native call to get device name?

[Ken Turkowski]

Is there a native call that I can make to get the device name to model number?
I run a number of unit tests and benchmarks, and it would be nice if they were self-annotating.
I know that I can get it in Java, but my tests are written in C++ with GoogleTest.

-Ken

[Ali Helmy]

Ken,

I use a simple jni call to get this info

const char *const GetDeviceName() {

  // Fetch the device model as name for now

  JNIEnv *env = GetEnv();

  jclass build_class = env->FindClass("android/os/Build");

  jfieldID model_id = env->GetStaticFieldID(build_class, "MODEL", "Ljava/lang/String;");

  jstring model_obj  = (jstring)env->GetStaticObjectField(build_class, model_id);

  const char *deviceName = env->GetStringUTFChars(model_obj, 0);

  return deviceName;

}

You can, of course, get any other fields in the Build class, which should have the info you need

cheers,

ali

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[Ken Turkowski]

Thanks, Ali,

I might need a little extra hand-holding.

Will this work in a standalone C++ command line tool?

I can't seem to get GetEnv() to work as given. The GetEnv() APIs in jni.h seem to want a JavaVM, which I don't have. Can I create one in a jiffy just to get this info?

-Ken

[Ali Helmy]

Ah! No idea, mate, sorry… I have no idea about interfacing Android NDK with a native C++ CLI tool

Sorry, thats the extent of my knowledge

cheers,

ali

[Brendon Costa]

Give the following a try (or other property fields you think might be better):

#include <sys/system_properties.h>

char model_string[PROP_VALUE_MAX+1];

__system_property_get("ro.product.model", model_string);

[Ken Turkowski]

Awesome, Brendon! It works perfectly!

-Ken