I have this code
package com.kmsmartapps.test5;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
public class MainActivity extends AppCompatActivity {
public void clickIM(View view) {
ImageView image = (ImageView) findViewById(R.id.imview);
image.SetImageResource(R.drawable.logo);
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
Android studio shows error :
Error:(11, 14) error: cannot find symbol method SetImageResource(int)
I want to change the source image using a button. With android studio 2.3 it worked fine but now using android studio 3.0 it doesn't work.
I tried solutions proposed in this forum but still showing error.
Can you tell how to fix this ?
Thanks
It was an error writing SetImageResource. I must write it with small s like this setImageResource. When changing to small the problem was resolved.
Related
I use the javafx virtual keyboard with open jdk 8. At times I have to access the virtual keyboard to prevent it from displaying when certain text fields get focus. An example of this is a screen where an operator has to scan in multiple barcodes. This virtual keyboard gets in the way. With open jdk 8 we were able to disable the virtual keyboard like this:
FXVK.detach(); //after importing "com.sun.javafx.scene.control.skin.FXVK"
We are now upgrading to open jdk 15 and building our UI with gradle. "com.sun.javafx.scene.control.skin.FXVK" is no longer accessible with a modular project with gradle. I don't believe using a different virtual keyboard is an option so can anyone explain how to access this FXVK class after java 8?
Is there a way to use --add-exports or --patch-module with a JAR to patch JavaFX to gain access to the internal class?
Below is the code for a sample project that shows this problem.
This is the JavaFX Application class that simply displays a text field and shows the code I could use with java 8 to not show the virtual keyboard.
package com.test.sampleapp.application;
////not accessible in java 15
//import com.sun.javafx.scene.control.skin.FXVK;
import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
public class Main extends Application{
public static void main(String[] args)
{
launch(args);
}
#Override
public void start(Stage primaryStage) throws Exception
{
Label label = new Label("Text field below");
TextField textField = new TextField();
VBox vbox = new VBox(label);
vbox.getChildren().add(textField);
Scene scene = new Scene(vbox);
primaryStage.setScene(scene);
primaryStage.show();
textField.focusedProperty().addListener(new ChangeListener<Boolean>()
{
#Override
public void changed(ObservableValue<? extends Boolean> observable, Boolean oldValue,
Boolean newValue)
{
// If focused
if (newValue)
{
//Need this to disable the virtual keyboard when using a textfield with scanning
//FXVK.detach();
}
}
});
}
}
Then I needed to add a wrapper class to have the virtual keyboard show up. Please note that most of the time I do use the virtual keyboard when text fields get focus, it's other times where I need to be able to programmatically disable it during certain situations.
The wrapper class:
package com.test.sampleapp.application;
import java.lang.reflect.Method;
public class AppWrapper
{
public static void main(String[] args) throws Exception
{
Class<?> app = Class.forName("com.test.sampleapp.application.Main");
Method main = app.getDeclaredMethod("main", String[].class);
System.setProperty("com.sun.javafx.isEmbedded", "true");
System.setProperty("com.sun.javafx.touch", "true");
System.setProperty("com.sun.javafx.virtualKeyboard", "javafx");
Object[] arguments = new Object[]{args};
main.invoke(null, arguments);
}
}
Let me know if you need anything else such as the build.gradle file however this is mostly just an issue using java 9 or beyond.
The FXVK class still exists in the same package, so the only issue is that its package is not exported by the javafx.controls module. If you must use this internal class, then you can pass an appropriate --add-exports JVM argument both at compile-time and at run-time.
Here's a simple application that calls FXVK#detach():
// Will fail at compile-time if the '--add-exports` argument is not
// passed to 'javac'
import com.sun.javafx.scene.control.skin.FXVK;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
public class Main extends Application {
#Override
public void start(Stage primaryStage) {
var root = new StackPane(new Label("Hello, World!"));
primaryStage.setScene(new Scene(root, 600, 400));
primaryStage.show();
// Will fail at run-time if the '--add-exports' argument is
// not passed to 'java'
FXVK.detach();
}
}
Assuming you put the Main.java file in your working directory, you can compile it with:
javac -p <path-to-fx> --add-modules javafx.controls --add-exports javafx.controls/com.sun.javafx.scene.control.skin=ALL-UNNAMED Main.java
And run it with:
java -p <path-to-fx> --add-modules javafx.controls --add-exports javafx.controls/com.sun.javafx.scne.control.skin=ALL-UNNAMED Main
If your code is modular then you can get rid of the --add-modules and you must change ALL-UNNAMED to the name of your module. Plus, make sure to launch your application via --module (or -m). Note the -p above is shorthand for --module-path.
If you use a build tool (e.g., Maven, Gradle, etc.), then you'll have to lookup how to set these JVM arguments for that tool. You'll also have to take into account how you deploy your application. For instance, if you use jpackage then you can use its --java-options argument to set the --add-exports option for when your application is launched.
You may also need to tell your IDE that you are giving yourself access to the internal package. Otherwise, your IDE will likely yell at you for trying to use an inaccessible type.
I'm creating a JavaFx project in Visual Studio Code. And I was wanting to release a sound, but I ended up having the following problem:
The type javafx.scene.media.Media is not accessibleJava(16778666)
The type javafx.scene.media.MediaPlayer is not accessibleJava(16778666)
I've already added your modules and also seen them on the internet to add to pom.xml:
modules:
"vmArgs": "--module-path \"C:/Program Files/Java/javafx-sdk-19/lib\" --add-modules javafx.controls,javafx.fxml, javafx.media",
Pom.xml:
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-media</artifactId>
<version>13</version>
</dependency>
I didn't find anyone commenting on this specific error, if you can help me I would be very grateful
Note: The paths are correct as the other packages are working normally
The code:
package com.example;
import java.io.File;
import java.io.IOException;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.media.Media;
import javafx.scene.media.MediaPlayer;
import javafx.stage.Stage;
/**
* JavaFX App
*/
public class App extends Application {
private static Scene scene;
public static void main(String[] args) {
launch();
}
#Override
public void start(Stage stage) throws IOException {
scene = new Scene(loadFXML("urna"));
stage.setScene(scene);
stage.setTitle("Urna Eletrônica");
stage.show();
}
public void songMedia(String path) {
Media media = new Media(new File(path).toURI().toString());
MediaPlayer mediaPlayer = new MediaPlayer(media);
mediaPlayer.play();
}
you will need to add it manually to your dependencies first
all info available on the JavaFX maven plugin github page
https://github.com/openjfx/javafx-maven-plugin
Looking at the way you have placed your path to the JavaFX library, Visual studio is reading the Javafx library incorrectly.
On top of the Visual Studio menu,
Click on Run
Then select Open Configurations
Inside the curly braces under "configurations" add a comma then press Enter
Then add the lines below:
"vmArgs": "--module-path=PATH_TO_JAVAFX_LIB --add-modules=MODULE_1,MODULES_2"
Note: An example of the above arguments with the correct path format is as below;
"vmArgs": "--module-path=lib/javafx-sdk-13/lib --add-modules=javafx.media,javafx.controls"
I'm using flutter , and I tried to use Native Ads following this doc
all ads are working fine but Native ad doesn't work and it fails building the app showing this error
error: cannot find symbol FirebaseAdMobPlugin.registerNativeAdFactory(flutterEngine, "moviesTorrentAdFactory", NativeAdFactoryExample());
this is MyActivity.java file :
package tech.devm.movies_torrent;
import io.flutter.embedding.android.FlutterActivity;
import io.flutter.embedding.engine.FlutterEngine;
import io.flutter.plugins.firebaseadmob.FirebaseAdMobPlugin;
import com.google.android.gms.ads.formats.UnifiedNativeAd;
import com.google.android.gms.ads.formats.UnifiedNativeAdView;
import io.flutter.plugins.firebaseadmob.FirebaseAdMobPlugin.NativeAdFactory;
import java.util.Map;
public class MainActivity extends FlutterActivity {
#Override
public void configureFlutterEngine(FlutterEngine flutterEngine) {
flutterEngine.getPlugins().add(new FirebaseAdMobPlugin());
FirebaseAdMobPlugin.registerNativeAdFactory(flutterEngine, "moviesTorrentAdFactory", NativeAdFactoryExample());
}
#Override
public void cleanUpFlutterEngine(FlutterEngine flutterEngine) {
FirebaseAdMobPlugin.unregisterNativeAdFactory(flutterEngine, "moviesTorrentAdFactory");
}
}
class NativeAdFactoryExample implements NativeAdFactory {
#Override
public UnifiedNativeAdView createNativeAd(
UnifiedNativeAd nativeAd, Map<String, Object> customOptions) {
// Create UnifiedNativeAdView
}
}
is there should be any changes to Manifest.xml file ? or am I missing something ?
I've cleared the build using (flutter clean ) many times but nothing works
any help would be much appreciated
I was also having the exact same issue. This is how I fix it!
Seems that this error is related with the NativeAdFactory file (eg: ListTileNativeAdFactory.java) and the layout at app/src/main/res/layout/list_title_native_ad.xml
If you go to the Google Codelabs example at https://github.com/googlecodelabs/admob-inline-ads-in-flutter/tree/main/complete and copy those files exactly like the example you will solve that problem.
I updated my Windows 10 laptop with May 2019 build (1903) and JavaFX does not seem to work anymore. After launching any JavaFX application, I see an icon on the taskbar, but no window is created. My java is the latest Java 8, latest Eclipse as IDE.
Is this a known issue or am I doing something wrong? Is there are a work-around or fix?
Thanks
I have created a small app that reproduces the problem.
If I comment out the following line
primaryStage.initStyle(StageStyle.UNDECORATED);
then it works as expected. Otherwise Windows 10 (1903) hangs, no window is shown. Be warned that you will need to use task-manager in windows to kill the JVM.
package com.alam33;
import java.io.IOException;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
import javafx.stage.StageStyle;
public class Win10_1903Test extends Application {
public Win10_1903Test() {
}
#Override
public void start(Stage primaryStage) throws IOException {
VBox vbox = new VBox();
vbox.setPrefHeight(200);
vbox.setPrefWidth(300);
Scene scene = new Scene(vbox);
primaryStage.setTitle("Win10_1903Test");
primaryStage.setScene(scene);
primaryStage.setFullScreen(true);
/* THIS IS THE OFFENDING LINE */
primaryStage.initStyle(StageStyle.UNDECORATED);
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
This is a workaround provided by Oracle, although they could not reproduce it. I suspect the problem is specific to the hardware in my machines.
Workaround: add jvm option
-Dprism.order=sw
As noted below, it is not a proper solution but I take it as an answer because it does help to make sure that your code is OK, which is important during development.
My JavaFX application creates a dialog as a second Stage and my JemmyFX tests intermittently fail to click controls in that dialog.
Failures occur at a rate of about 10% on my Ubuntu Linux workstation, but this works flawlessly on Windows.
The proximal cause of the failure seems to be that JemmyFX is clicking the mouse in the wrong places. I dug into this, and the bad click coordinates seem to be caused by incorrect window coordinates coming from the Window object that owns the Scene.
So, I created a minimal application and test that demonstrates the problem, and it actually fails at an even higher rate than my real application (about 50%).
Here is the application:
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ComboBox;
import javafx.stage.Stage;
public class MySmallApplication extends Application {
public void start(Stage primaryStage) {
class MyDialog extends Stage {
public MyDialog() {
setTitle("My Dialog");
ComboBox comboBox = new ComboBox();
comboBox.getItems().add("apple");
comboBox.getItems().add("pear");
comboBox.getItems().add("banana");
comboBox.setId("click-me");
setScene(new Scene(comboBox));
sizeToScene();
}
}
Button button = new Button("Show Dialog");
button.setOnAction((event) -> {
new MyDialog().showAndWait();
});
primaryStage.setScene(new Scene(button));
primaryStage.setTitle("My Small Application");
primaryStage.show();
}
}
Here is the test:
import javafx.application.Application;
import javafx.scene.control.ComboBox;
import javafx.stage.Window;
import org.jemmy.fx.AppExecutor;
import org.jemmy.fx.SceneDock;
import org.jemmy.fx.control.ComboBoxDock;
import org.jemmy.fx.control.LabeledDock;
import org.jemmy.resources.StringComparePolicy;
import org.junit.BeforeClass;
import org.junit.Test;
import MySmallApplication;
public class WindowBugTest3 {
#BeforeClass
public static void launch() throws InterruptedException {
AppExecutor.executeNoBlock(MySmallApplication.class);
Thread.sleep(1000);
}
#Test
public void testWindowPosition() throws InterruptedException {
SceneDock sceneDock = new SceneDock();
new LabeledDock(
sceneDock.asParent(),
"Show Dialog",
StringComparePolicy.EXACT).mouse().click();
Thread.sleep(1000);
SceneDock dialogSceneDock = new SceneDock(
"My Dialog",
StringComparePolicy.EXACT);
ComboBoxDock comboBoxDock = new ComboBoxDock(
dialogSceneDock.asParent(), "click-me");
comboBoxDock.selector().select("pear");
}
}
I don't really want to develop my tests on Windows.
I observed all of this with recent fetches of JemmyFX (8, 8u, 8u-dev) compiled and run on Java8u101 on Ubuntu 14.04.
It seems that it is a bug in JavaFX (https://bugs.openjdk.java.net/browse/JDK-8166414). It can't be resolved on JemmyFX side.
P.S. It is highly unlikely that it will be fixed in observable time. So I may only suggest to use some ugly workaround like restoring correct dialog coordinates after receiving incorrect ones (e.g. by additional centerOnScreen() on the second invocation of coordinate property listener).