我想在相机图像上绘制地点的标记和信息。 请帮忙。 我已经在应用程序委托中完成了编码。 代码如下:
overlay = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; overlay.opaque = NO; overlay.backgroundColor=[UIColor clearColor];
[window addSubview:overlay];
#define CAMERA_TRANSFORM 1.24299
UIImagePickerController *uip;
@try {
uip = [[[UIImagePickerController alloc] init] autorelease];
uip.sourceType = UIImagePickerControllerSourceTypeCamera; uip.showsCameraControls = NO;
uip.toolbarHidden = YES;
uip.navigationBarHidden = YES;
uip.wantsFullScreenLayout = YES;
uip.cameraViewTransform = CGAffineTransformScale(uip.cameraViewTransform, CAMERA_TRANSFORM, CAMERA_TRANSFORM);
}
@catch (NSException * e)
{ [uip release];
uip = nil;
}
@finally
{ if(uip) {
[overlay addSubview:[uip view]]; [overlay release]; }
}
它显示相机。我想要检测地点并在该地点放置图钉,以显示该地点的信息。