I have problem with my soundplayer. I can play or stop a soundfile but I am not able to restart a soundfile after it has reached the end. whenever the end of the soundfile is reached it seems to be the status unknown or halted, but I can not react on the status.
Thanks for your help
public class Main extends Application {
private StackPane root;
#Override
public void start(Stage primaryStage) {
//Creating button and adding an ID for CSS
Button btnPlay = new Button("Press to play or stop");
Media media = new Media(this.getClass().getResource("aquarium.wav").toString());
MediaPlayer player = new MediaPlayer(media);
btnPlay.setOnAction(new EventHandler<ActionEvent>() {
//handling status sound is playing or not playing
#Override
public void handle(ActionEvent event) {
Status status = player.getStatus();
if (status == Status.UNKNOWN || status == Status.HALTED) {
System.out.println("Status unknown");
//what to do??????
}
if (status == Status.PAUSED
|| status == Status.READY
|| status == Status.STOPPED) {
player.play();
}
if (status == Status.PLAYING) {
player.stop();
}
}
});
root = new StackPane();
root.getChildren()
.addAll(btnPlay);
Scene scene = new Scene(root, 600, 450);
//binding Scene to StyleStop.css
scene.getStylesheets()
.add(Main.class
.getResource("styleStop.css").toExternalForm());
primaryStage.setTitle(
"Mediaplayer - My SoundMachine");
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
Related
I am trying to change my imageview when its on click and then choose image from gallery then change it. But I don't think its working since when I tried running my project, it just crashes out of the app.
Navigation Drawer
ActivityResult
ActivityResultLauncher<String> mGetContent = registerForActivityResult(
new ActivityResultContracts.GetContent(),
new ActivityResultCallback<Uri>() {
#Override
public void onActivityResult(Uri uri) {
// Handle the returned Uri
}
});
ImageView
profileImage = (ImageView) findViewById(R.id.profilepic);
profileImage.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mGetContent.launch("image/*");
}
});
p.s. The ImageView is inside my navigation drawer. what I wanted to do is that whenever I click or press the ImageView which is the Hamburger Icon, it will redirect to gallery to choose image and then change it once the user chose one.
MapsActivity.java
public class MapsActivity extends AppCompatActivity implements
OnMapReadyCallback,
GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener,
LocationListener{
private static final String TAG = "";
private DrawerLayout drawer;
LatLng carWash1 = new LatLng(6.106535, 125.187230);
LatLng carWash2 = new LatLng(6.106123, 125.189280);
private ArrayList<LatLng> locationArrayList;
private ImageView profileImage;
final static int Gallery_Pick = 1;
private GoogleMap mMap;
private ActivityMapsBinding binding;
private GoogleApiClient googleApiClient;
private LocationRequest locationRequest;
private Location recentLocation;
private Marker currentMark;
private static final int Request_User_Location = 1234;
private List<Polyline> polylines = null;
protected LatLng start = null;
protected LatLng end = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
binding = ActivityMapsBinding.inflate(getLayoutInflater());
setContentView(binding.getRoot());
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
checkUserLocationPermission();
}
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
drawer = findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawer, toolbar,
R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
locationArrayList = new ArrayList<>();
locationArrayList.add(carWash1);
locationArrayList.add(carWash2);
}
#Override
public void onBackPressed() {
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
super.onBackPressed();
}
/**
* Manipulates the map once available.
* This callback is triggered when the map is ready to be used.
* This is where we can add markers or lines, add listeners or move the camera. In this case,
* we just add a marker near Sydney, Australia.
* If Google Play services is not installed on the device, the user will be prompted to install
* it inside the SupportMapFragment. This method will only be triggered once the user has
* installed Google Play services and returned to the app.
*/
public boolean checkUserLocationPermission() {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.ACCESS_FINE_LOCATION)) {
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, Request_User_Location);
} else {
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, Request_User_Location);
}
return false;
} else {
return true;
}
}
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode) {
case Request_User_Location:
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
if (googleApiClient == null) {
buildGoogleApiClient();
}
mMap.setMyLocationEnabled(true);
}
} else {
Toast.makeText(this, "Permission Denied!", Toast.LENGTH_SHORT).show();
}
return;
}
}
#Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
buildGoogleApiClient();
mMap.setMyLocationEnabled(true);
}
for (int i = 0; i < locationArrayList.size(); i++) {
mMap.addMarker(new MarkerOptions().position(locationArrayList.get(0)).title("Purok 5 Carwashan").icon(BitMapFromVector(getApplication(), R.drawable.ic_baseline_airplanemode_active_24)));
mMap.addMarker(new MarkerOptions().position(locationArrayList.get(1)).title("Stratford Carwashan").icon(BitMapFromVector(getApplication(), R.drawable.ic_baseline_airplanemode_active_24)));
mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(locationArrayList.get(i), 15));
mMap.moveCamera(CameraUpdateFactory.newLatLng(locationArrayList.get(i)));
}
boolean success = googleMap.setMapStyle(new MapStyleOptions(getResources()
.getString(R.string.style_json)));
if (!success) {
Log.e(TAG, "Style parsing failed.");
}
}
private BitmapDescriptor BitMapFromVector(Context context, int vectorResId) {
// below line is use to generate a drawable.
Drawable vectorDrawable = ContextCompat.getDrawable(context, vectorResId);
// below line is use to set bounds to our vector drawable.
vectorDrawable.setBounds(0, 0, vectorDrawable.getIntrinsicWidth(), vectorDrawable.getIntrinsicHeight());
// below line is use to create a bitmap for our
// drawable which we have added.
Bitmap bitmap = Bitmap.createBitmap(vectorDrawable.getIntrinsicWidth(), vectorDrawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
// below line is use to add bitmap in our canvas.
Canvas canvas = new Canvas(bitmap);
// below line is use to draw our
// vector drawable in canvas.
vectorDrawable.draw(canvas);
// after generating our bitmap we are returning our bitmap.
return BitmapDescriptorFactory.fromBitmap(bitmap);
}
protected synchronized void buildGoogleApiClient() {
googleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
googleApiClient.connect();
}
#Override
public void onLocationChanged(#NonNull Location location) {
recentLocation = location;
if (currentMark != null) {
currentMark.remove();
}
LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(latLng);
markerOptions.title("Current Location!");
markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_ROSE));
currentMark = mMap.addMarker(markerOptions);
mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
mMap.animateCamera(CameraUpdateFactory.zoomBy(12));
if (googleApiClient != null) {
LocationServices.FusedLocationApi.removeLocationUpdates(googleApiClient, this);
}
}
#Override
public void onConnected(#Nullable Bundle bundle) {
locationRequest = new LocationRequest();
locationRequest.setInterval(1100);
locationRequest.setFastestInterval(1100);
locationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
LocationServices.FusedLocationApi.requestLocationUpdates(googleApiClient, locationRequest, this);
}
}
#Override
public void onConnectionSuspended(int i) {
}
#Override
public void onConnectionFailed(#NonNull ConnectionResult connectionResult) {
}
}
I have a number of TextFields on my UI screen and on click of a button I want to get the contents of selected textfield.I am using JavaFX and isFocused() method is not working
The focus is moved to the Button before the EventHandler runs. This means the TextField is no longer focused at the time the EventHandler checks the property.
You could listen to the focusOwner property of the Scene though and save the last Node focused:
private static class FocusData {
private TextField textField = null;
public TextField getTextField() {
return textField;
}
public void setFocusedNode(Node node) {
this.textField = node instanceof TextField ? (TextField) node : null;
}
public boolean isTextField() {
return textField != null;
}
}
#Override
public void start(Stage primaryStage) {
final FocusData focusData = new FocusData();
Button btn = new Button("Print Text");
btn.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent event) {
if (focusData.isTextField()) {
System.out.println(focusData.getTextField().getText());
}
}
});
VBox root = new VBox();
for (int i = 0; i < 5; i++) {
root.getChildren().add(new TextField());
}
Scene scene = new Scene(root);
scene.focusOwnerProperty().addListener(new ChangeListener<Node>() {
#Override
public void changed(ObservableValue<? extends Node> observable, Node oldValue, Node newValue) {
focusData.setFocusedNode(oldValue);
}
});
root.getChildren().add(btn);
primaryStage.setScene(scene);
primaryStage.show();
}
If you're using a fxml you can get access to the scene by adding a listener to the scene property of some node in the initialize method and add/remove the listener in that listener.
root is some node in the following code snippet:
final ChangeListener<Node> listener = new ChangeListener<Node>() {
#Override
public void changed(ObservableValue<? extends Node> observable, Node oldValue, Node newValue) {
focusData.setFocusedNode(oldValue);
}
};
if (root.getScene() != null) {
root.getScene().focusOwnerProperty().addListener(listener);
}
root.sceneProperty().addListener(new ChangeListener<Scene>() {
public void changed(ObservableValue<? extends Scene> observable, Scene oldValue, Scene newValue) {
if (oldValue != null) {
oldValue.focusOwnerProperty().removeListener(listener);
}
if (newValue != null) {
newValue.focusOwnerProperty().addListener(listener);
}
listener.changed(null, null, null);
}
});
I'm trying to create simple app which contains of ten activities. Each activity look pretty much the same, it has four buttons (different color) and when one particular button is clicked it's open next activity. OnCreate method of every activity has mediaplayer that play name of that activity. After some time I see in LogCat that gc freed some objects and at that time Activity don't play any sound and buttons are disabled.
Do you have any advice or suggestions how to resole that?
Here is code of one Activity:
public class Green extends Activity {
int buttonActive = 0;
int buttonWrong = 0;
MediaPlayer player;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_green);
buttonWrong = 0;
playSound();
Button btn = (Button)findViewById(R.id.button1);
Button btn2 = (Button)findViewById(R.id.button2);
Button btn3 = (Button)findViewById(R.id.button3);
Button btn4 = (Button)findViewById(R.id.button4);
btn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
if(buttonActive == 1){
playSoundCorrect();
Intent intent = new Intent(v.getContext(),Blue.class);
startActivity(intent);
}
}
});
btn2.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if(buttonActive == 1 && buttonWrong == 0){
buttonWrong = 1;
playSoundWrong();
}
}
});
btn3.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if(buttonActive == 1 && buttonWrong == 0){
buttonWrong = 1;
playSoundWrong();
}
}
});
btn4.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if(buttonActive == 1 && buttonWrong == 0){
buttonWrong = 1;
playSoundWrong();
}
}
});
}
#Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
finish();
}
private void playSound(){
MediaPlayer player = MediaPlayer.create(this, R.raw.green);
player.start();
player.setOnCompletionListener(new OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
mp.release();
buttonActive = 1;
}
});
}
private void playSoundWrong(){
player = MediaPlayer.create(this, R.raw.wrong2);
if(!player.isPlaying()){
player.start();
}
player.setOnCompletionListener(new OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
mp.release();
buttonWrong = 0;
}
});
}
private void playSoundCorrect(){
MediaPlayer player = MediaPlayer.create(this, R.raw.correct);
player.start();
player.setOnCompletionListener(new OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
mp.release();
}
});
}
}
It looks like in private void playSound you're masking the class's player property. If you say player = MediaPlayer.create then the class's player property will be set to the new MediaPlayer, and the player will be reachable so long as the class is reachable. Instead you're saying MediaPlayer player = MediaPlayer.create, which is creating a new player variable that is scoped to the playSound method - once the method terminates the player is no longer reachable and will be garbage-collected, even if the class is still reachable.
I am working on a basic Java FX task exercise. It counts from 1 to 150 on a thread. The current value is presented on a label and updates a progress bar.
There is a button to start the task, to cancel it and to view canceled status of the task.
The thing that puzzles me is as to why I cannot re run the task after having canceled the thread once(same thing happens if I let the task finnish).
I want to be able to rerun the task . Then I need to make it so that it will resume(though that shouldn't be that hard after figuring out how to rerun the task)
Source ;
public class JavaFX_Task extends Application {
#Override
public void start(Stage primaryStage) {
final Task task;
task = new Task<Void>() {
#Override
protected Void call() throws Exception {
int max = 150;
for (int i = 1; i <= max; i++) {
if (isCancelled()) {
break;
}
updateProgress(i, max);
updateMessage(String.valueOf(i));
Thread.sleep(100);
}
return null;
}
};
ProgressBar progressBar = new ProgressBar();
progressBar.setProgress(0);
progressBar.progressProperty().bind(task.progressProperty());
Label labelCount = new Label();
labelCount.textProperty().bind(task.messageProperty());
final Label labelState = new Label();
Button btnStart = new Button("Start Task");
btnStart.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent t) {
new Thread(task).start();
}
});
Button btnCancel = new Button("Cancel Task");
btnCancel.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent t) {
task.cancel();
}
});
Button btnReadTaskState = new Button("Read Task State");
btnReadTaskState.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent t) {
labelState.setText(task.getState().toString());
}
});
VBox vBox = new VBox();
vBox.setPadding(new Insets(5, 5, 5, 5));
vBox.setSpacing(5);
vBox.getChildren().addAll(
progressBar,
labelCount,
btnStart,
btnCancel,
btnReadTaskState,
labelState);
StackPane root = new StackPane();
root.getChildren().add(vBox);
Scene scene = new Scene(root, 300, 250);
primaryStage.setTitle("java-buddy.blogspot.com");
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
The Task documentation is pretty clear on this.
As with FutureTask, a Task is a one-shot class and cannot be reused. See Service for a reusable Worker.
There is an example of restartable concurrent services in the Service documentation.
I have a problem with drag and drop event on JFXPanel that on located JPanel. When i push drag message to DragBoard, javaFX part of application doesnt work anymore. I think its about swing event mechanizm but i am not sure. There is no problem with other events. It made me confused. Is there any solution to this problem? Thanks in advance.
public class MyScene extends Scene {
public MyScene(VBox vBoxMainLayout) {
super(vBoxMainLayout);
HBox hBox = new HBox();
hBox.setPrefSize(10000, 10000);
hBox.setSpacing(40);
Button buttonSource = new Button("Source");
buttonSource.setMinSize(60, 30);
buttonSource.setOnDragDetected(new EventHandler<MouseEvent>() {
public void handle(MouseEvent event) {
Dragboard db = startDragAndDrop(TransferMode.ANY);
ClipboardContent content = new ClipboardContent();
String message = "Drag operatation is done";
content.putString(message);
db.setContent(content);
event.consume();
}
});
buttonSource.setOnDragDone(new EventHandler<DragEvent>() {
public void handle(DragEvent event) {
event.consume();
}
});
TextArea textAreaTarget = new TextArea();
textAreaTarget.setMinSize(200, 500);
hBox.getChildren().add(buttonSource);
hBox.getChildren().add(textAreaTarget);
vBoxMainLayout.getChildren().add(hBox);
}
}
public class Main extends Application {
public static void main(String[] args) {
launch(args);
}
#Override
public void start(Stage stage) {
VBox vBoxMainLayout = new VBox();
MyScene myScene = new MyScene(vBoxMainLayout);
JFrame frame = new JFrame();
JFXPanel arg0 = new JFXPanel();
arg0.setScene(myScene);
frame.getContentPane().add(arg0);
frame.setVisible(true);
}
}
It was a known deadlock in JavaFX 2.1 and pushed to 2.2 (thats what i learned from oracle ) but i guess it stil not solved.