Exclude your own Activity from Activity.startActivity(Intent) chooser

gistfile1.txt

/**
 * Attempts to start an activity to handle the given intent, excluding activities of this app.
 * <ul>
 *     <li>If the user has set a default activity (which does not belong in this app's package), it is opened without prompt.</li>
 *     <li>Otherwise, an intent chooser is displayed that excludes activities of this app's package.</li>
 * </ul>
 *
 * @param context context
 * @param intent intent to open
 * @param chooserTitle the title that will be displayed for the intent chooser in case one needs to be displayed.
 */
static void startActivityExcludingOwnApp(@NonNull Context context, @NonNull Intent intent, @NonNull String chooserTitle) {

    PackageManager packageManager = context.getPackageManager();
    List<Intent> possibleIntents = new ArrayList<>();

    Set<String> possiblePackageNames = new HashSet<>();
    for (ResolveInfo resolveInfo : packageManager.queryIntentActivities(intent, 0)) {

        String packageName = resolveInfo.activityInfo.packageName;
        if (!packageName.equals(context.getPackageName())) {

            Intent possibleIntent = new Intent(intent);
            possibleIntent.setPackage(resolveInfo.activityInfo.packageName);
            possiblePackageNames.add(resolveInfo.activityInfo.packageName);

            possibleIntents.add(possibleIntent);
        }
    }

    @Nullable ResolveInfo defaultResolveInfo = packageManager.resolveActivity(intent, 0);

    if (defaultResolveInfo == null || possiblePackageNames.isEmpty()) {
        throw new ActivityNotFoundException();
    }

    // If there is a default app to handle the intent (which is not this app), use it.
    if (possiblePackageNames.contains(defaultResolveInfo.activityInfo.packageName)) {
        context.startActivity(intent);
    }
    else { // Otherwise, let the user choose.
        Intent intentChooser = Intent.createChooser(possibleIntents.remove(0), chooserTitle);
        intentChooser.putExtra(Intent.EXTRA_INITIAL_INTENTS, possibleIntents.toArray(new Parcelable[]{}));
        context.startActivity(intentChooser);
    }
}