.java

if (isAppInstalled("com.google.android.apps.maps")) {
    // Normal process
} else {
    Intent myIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.google.com/maps/dir/Current+Location/-17.760294,-63.201106"));
    startActivity(myIntent);
}




private boolean isAppInstalled(String uri) {
    PackageManager pm = getPackageManager();
    try {
        pm.getPackageInfo(uri, PackageManager.GET_ACTIVITIES);
        return true;
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
    }
    return false;
}