Gist to check if Skitch is installed and supports the Action_Edit intent

SkitchVersionChecker.java

public class SkitchVersionChecker {
	
	private static final String SKITCH_PACKAGE = "com.evernote.skitch";
	private static final String TAG = "Skitch Checker";
	
    
	/**Build the intent to send to send the edit intent to skitch. 
	 * If Skitch is not installed or isn't up to date, it will take
	 * the user to the market and ask them to install skitch.
	 * @param context expects an activity context (not an application context)
	 * @param imagePath A Uri that expects an image. This should point to a file 
	 * not to a ContentResovler. 
	 */
	public void sendIntentToSkitch(Context context, Uri imagePath){
		Intent sendIntent = getEditIntent(); 
		sendIntent.setData(imagePath);
		if(doesSkitchSupportEditIntent(context)){
			context.startActivity(sendIntent);
		} else {
			Toast.makeText(context, "Please update or install Skitch", Toast.LENGTH_LONG).show();
			Intent marketIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id="+ SKITCH_PACKAGE));
			context.startActivity(marketIntent);
		}
	}
	
	/** Returns true if skitch supports the Edit intent
	 * @param context any system context
	 * @return True if skitch is up to date and has the right version. 
	 */
	public boolean doesSkitchSupportEditIntent(Context context){
		PackageManager pm = context.getPackageManager();
		List<ResolveInfo> editActivities = pm.queryIntentActivities(getEditIntent(), PackageManager.MATCH_DEFAULT_ONLY);
		for(ResolveInfo info : editActivities){
			if(info.activityInfo.packageName.equals(SKITCH_PACKAGE)){
				return true;
			}
		}
		return false;
		
	}
	
	/** Returns true if any version of skitch is installed
	 * @param context any system context
	 * @return True if skitch is installed.
	 */
	public boolean isSkitchInstalled(Context context) {
	    PackageManager pm = context.getPackageManager();
	    try {
	      pm.getPackageInfo(SKITCH_PACKAGE, 0);
	      return true;
	    } catch (NameNotFoundException nnfe) {
	      Log.d(TAG, SKITCH_PACKAGE + " is not installed");
	    }
	    return false;
	  }
	
	private Intent getEditIntent(){
		Intent sendIntent = new Intent();
		sendIntent.setAction(Intent.ACTION_EDIT);
		sendIntent.setType("image/*");
		sendIntent.setPackage(SKITCH_PACKAGE);
		return sendIntent;
	}
}

Is it really working? I have tried it but it didn't work for me. Can you please provide me a working sample?
Skitch tools for image annotations are the actual things which I am looking for quite long time.