I have a MainActivity which loads a Fragment in it's oncreate Method and a Dialog to check for User's Input. This Fragment loads a WebView and a ProgressDialog in it's onPageStarted Method. The Problem is, now Those 2 Dialogs are overlapping each other on App start, So the user has to wait for the ProgressDialog (WebView) to finish, before he can access the InputDialog.
Can I access the ProgressDialog from my MainActivity or can I display the Input Dialog after finishing (dismissing) the ProgressDialog from my MainActivity in any way?
MainActivity oncreate:
public class MainActivity extends AppCompatActivity {
DrawerLayout drawerLayout;
Toolbar toolbar;
ActionBar actionBar;
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
Fragment FirstFragment = new FirstFragment();
Fragment SecondFragment = new SecondFragment();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_activity);
SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
String firstrun = preferences.getString("firstrun", null);
String helpread = preferences.getString("helpread", null);
//check for users first time to open the app
//opens the FirstRunActivity if so
if (firstrun == null) {
Intent FirstRunActivity = new Intent(this, FirstRunActivity.class);
startActivity(FirstRunActivity);
}
//check for users first time to open the app
//opens the HelpActivity if so
if (helpread == null) {
new MaterialDialog.Builder(this)
.title("Hilfe Sektion lesen!")
.content("Bitte lies die Hilfe Sektion der App um alle Informationen über die App zu erhalten und Fehler zu vermeiden.")
.positiveText("OK")
.callback(new MaterialDialog.ButtonCallback() {
@Override
public void onPositive(MaterialDialog dialog) {
Intent HelpActivity = new Intent(MainActivity.this, HelpActivity.class);
startActivity(HelpActivity);
}
})
.show();
}
//Replaces/adds the name and the grade of the users preferences to the header of the NavigationDrawer
String name = preferences.getString("name_preference", "");
String grade = preferences.getString("grade_preference", "");
TextView header_username = (TextView) findViewById(R.id.header_username);
TextView header_grade = (TextView) findViewById(R.id.header_grade);
header_username.setText("Name: " + name);
header_grade.setText("Klasse: " + grade);
//initiate the Toolbar/Actionbar and adds the white menu Icon to it
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
actionBar = getSupportActionBar();
actionBar.setHomeAsUpIndicator(R.drawable.ic_menu_white_24dp);
actionBar.setDisplayHomeAsUpEnabled(true);
//initiates the NavigationDrawer
drawerLayout = (DrawerLayout) findViewById(R.id.navigation_drawer_layout);
NavigationView navigationView = (NavigationView) findViewById(R.id.navigation_view);
if (navigationView != null) {
setupNavigationDrawerContent(navigationView);
}
setupNavigationDrawerContent(navigationView);
//initiates the FirstFragment if there is no Saved Instance of the App
if (savedInstanceState == null) {
fragmentTransaction.replace(R.id.main_fragment, FirstFragment);
fragmentTransaction.commit();
}
}
FirstFragment oncreateview:
public class FirstFragment extends Fragment {
private ProgressBar ProgressBar;
private WebView webView;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
//Initiate the Fragments Menu
setHasOptionsMenu(true);
View view = inflater.inflate(R.layout.first_fragment, container, false);
//Initiates the FloatingActionButton and it's onClickListener
FloatingActionButton button = (FloatingActionButton) view.findViewById(R.id.fab);
button.setOnClickListener(new View.OnClickListener() {
//Reloads the WebView if the User clicks on the FloatingActionButton
@Override
public void onClick(View v) {
webView.reload();
}
});
webView = (WebView) view.findViewById(R.id.webView);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setLoadWithOverviewMode(false);
webView.getSettings().setUseWideViewPort(true);
webView.getSettings().setSupportZoom(true);
webView.getSettings().setBuiltInZoomControls(true);
webView.getSettings().setDisplayZoomControls(false);
webView.setWebViewClient(new WebViewClient() {
ProgressDialog prDialog;
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
new MaterialDialog.Builder(getActivity())
.title("Es ist etwas schief gelaufen :(")
.content("Es gibt ein Problem mit deiner Internetverbindung.\nBitte lade die Seite Neu oder besuche sie zu einem späteren Zeitpunkt nochmal.")
.positiveText("Ok")
.show();
}
//ProgressBar is Visible on a loading Page
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
prDialog = ProgressDialog.show(getActivity(), null, "Wird geladen, bitte warten...");
}
//PrgressBar is not visible on a finished Page and SnackBar with Hint
@Override
public void onPageFinished(WebView view, String url) {
if (prDialog.isShowing()) {
prDialog.dismiss();
}
Snackbar.make(view, "Hinweiß: 'oops...404 Error' bedeuted: \nEs sind aktuell keine Vertretungen für dich vorhanden.", Snackbar.LENGTH_LONG).show();
}
});
SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getActivity());
String item = preferences.getString("grade_preference", "");
webView.loadUrl("http://www.kantschule-falkensee.de/uploads/dmiadgspahw/vertretung/Druck_Kla_" + item + ".htm");
return view;
}
