I am trying to get a simple native Cocoa API method to work via JNI.
I want to try to hide all other applications.
I seem to have two choices, by calling -hideOtherApplications on
either NSApplication or NSWorkspace. But neither seems to be working
for me.
I'm calling them from a JNI native method, called from a Java class.
Here's my Java class:
public class ApplicationTesting
{
public native void hideOtherApps();
public static void main(String[] args)
{
final ApplicationTesting app = new ApplicationTesting();
app.hideOtherApps();
}
static
{
System.loadLibrary("StringProcessing"); //all libraries in
this test package are included in this
}
}
My native method is :
JNIEXPORT void JNICALL Java_ApplicationTesting_hideOtherApps(JNIEnv
*env, jobject ojb)
{
//test one : can we get a reference to an NSApplication?
NSApplication *app = [NSApplication sharedApplication];
if (app == nil || app == NULL)
{
printf("NSApplication object is nil\n");
return;
}
//show some info on the app
BOOL isActive = [app isActive];
printf( (isActive == YES) ? "app is active\n" : "app is NOT
active\n" );
BOOL isRunning = [app isRunning];
printf( (isRunning == YES) ? "app is running\n" : "app is NOT
running\n" );
BOOL isHidden = [app isHidden];
printf( (isHidden == YES) ? "app is hidden\n" : "app is NOT
hidden\n" );
//try to hide other apps
printf("Calling hideOtherApplications\n");
[[NSApplication sharedApplication]
performSelectorOnMainThread:@selector(hideOtherApplications:)
withObject:NULL waitUntilDone:NO];
[[NSWorkspace sharedWorkspace]
performSelectorOnMainThread:@selector(hideOtherApplications)
withObject:NULL waitUntilDone:NO];
}
running my Java main() from the Terminal app (command line) results
in this output:
app is NOT active
app is running
app is NOT hidden
Calling hideOtherApplications
but alas, no other apps actually get hidden.
What might I be doing wrong?
Thanks,
Rob Ross, Lead Software Engineer
E! Networks
email@hidden
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