Develop Reference

How to set "context" of an capacitor plugin to use UsageStatsManager

I'm trying to write a capacitor plugin following this explanation. The Plugin should make use of Androids usageStatsManager.
With the code further below, I'm getting the following error in Android Studio:
error: cannot find symbol
UsageStatsManager usm = (UsageStatsManager) context.getSystemService(Context.USAGE_STATS_SERVICE);
symbol: variable context
location: class echoPlugin
So it seems somehow I'm not using context correctly.
My code in echoPlugin.java:
package com.echo.capacitor;
import com.getcapacitor.JSObject;
import com.getcapacitor.Plugin;
import com.getcapacitor.PluginMethod;
import com.getcapacitor.annotation.CapacitorPlugin;
import android.content.Context;
import android.util.Log;
import android.app.usage.UsageStats;
import android.app.usage.UsageStatsManager;
import java.util.Calendar;
import java.util.List;
#CapacitorPlugin(name = "echo")
public class echoPlugin extends Plugin {
#PluginMethod
public void getStats(Context call) {
Log.i("Method: ", "getStats");
UsageStatsManager usm = (UsageStatsManager) context.getSystemService(Context.USAGE_STATS_SERVICE);
long now = Calendar.getInstance().getTimeInMillis();
List<UsageStats> stats = usm.queryUsageStats(UsageStatsManager.INTERVAL_DAILY, 0, now);
JSObject ret = new JSObject();
ret.put("my Stats",stats);
call.resolve(ret);
}
}
I have to add that I'm a complete Java beginner. I'm normally doing Apps with Vue+Ionic+Capacitor, but because there is no implementation of the UsageStatsManager in Capacitor I'm trying to find a way to make it work.

Use getContext() instead of context

Android: error: cannot find symbol packages.add(new MyAppPackage())

Please HELP!!
I'm working on an app in react-native that involves using a native Calendar module. I'm trying to register this module with react native and I keep getting this error.
This is how I've registered the module in MainApplication.java:
#Override
protected List<ReactPackage> getPackages() {
List<ReactPackage> packages = new PackageList(this).getPackages();
packages.add(new ModuleRegistryAdapter(mModuleRegistryProvider));
packages.add(new MyAppPackage());
return packages;
}
This is the MyAppPackage.java file I've created using the tutorial here, https://reactnative.dev/docs/native-modules-android#register-the-module-android-specific.:
package com.chowtime; // replace your-app-name with your app’s name
import com.facebook.react.ReactPackage;
import com.facebook.react.bridge.NativeModule;
import com.facebook.react.bridge.ReactApplicationContext;
import com.facebook.react.uimanager.ViewManager;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class MyAppPackage implements ReactPackage {
#Override
public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
return Collections.emptyList();
}
#Override
public List<NativeModule> createNativeModules(
ReactApplicationContext reactContext) {
List<NativeModule> modules = new ArrayList<>();
modules.add(new CalendarModule(reactContext));
return modules;
}
}
Note: This app was previously created using the managed-workflow on expo and was ejected to the bare workflow. This is the directory for the relevant files:

I came across this same error. It seems like the docs on how to create/use native modules in react native are missing a step.
In the MainApplication.java file you need to import 'MyAppPackage'.
import com.your-app-name.MyAppPackage;
Without importing it the 'MainApplication' file it won't know what MyAppPackage is referring to hence the cannot find symbol error.

Is this as simple as an import problem?
I noticed your MyAppPackage class is defined here:
package com.chowtime; // replace your-app-name with your app’s name
But your MainApplication error message seems indicate a sub-package, specifically "chowtime.chowtime". Did you mean for both chowtimes?
com.chowtime.chowtime.MainApplication

Why is it that the texture isn´t loading? Minecraft 15.2 Forge 31.2

I am trying to apply a texture to an item created with forge for Minecraft but for some reason it wouldn´t load. I am new to this so I cant recognize where the problem is, so I will upload multiple lines of code.
This code is from itemInit.Java:
package com.example.examplemod.init;
import com.example.examplemod.ExampleMod;
import net.minecraft.item.Item;
import net.minecraft.item.ItemGroup;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventBusSubscriber.Bus;
import net.minecraftforge.registries.ObjectHolder;
import net.minecraftforge.event.RegistryEvent;
import net.minecraftforge.eventbus.api.SubscribeEvent;
#Mod.EventBusSubscriber(modid = ExampleMod.MOD_ID, bus = Bus.MOD)
#ObjectHolder(ExampleMod.MOD_ID)
public class itemInit {
public static Item example_item = null;
#SubscribeEvent
public static void registerItems(final RegistryEvent.Register<Item> event) {
event.getRegistry().register(new Item(new Item.Properties().group(ItemGroup.MISC)).setRegistryName("example_item"));
}
}
This is the example_item.json:
{
"parent":"items/generated",
"textures":{
"layer0":"examplemod:items/example_item"
}
}
en_us.json:
{
"item.examplemod.example_item":"Super Seed"
}
And here is a picture of the project hierarchy:Project hierarchy

In your example_mod.json file, line 2, change it to
"parent": "item/generated",
Inside the directory assets\examplemod\models, you have two folders named blocks and items. Change their names to 'block' and 'item' without the quotation marks. If you encounter any other problem, post your error log using pastebin or some other site. Also, create a github repo for your project and then post the link here :)
Also, I recommend using DeferredRegister class and RegistryObjects to register your custom items.
Syntax:
public static final DeferredRegister<Item> NAME = new DeferredRegister<>(ForgeRegistries.ITEMS, "Your Mod ID");
public static final RegistryObject<Item> Example_item = NAME.register("Registry_Name", () -> new Item(new Item.Properties()));

How to enable Neural Text-to-Speech (NTTS) in Java using Amazon Polly

I am trying to use Amazon Polly to convert text to speech using Java API. As described by Amazon there are several US english voices which support Neural. https://docs.aws.amazon.com/polly/latest/dg/voicelist.html
The code I am following to run in Java application is as following:
package com.amazonaws.demos.polly;
import java.io.IOException;
import java.io.InputStream;
import com.amazonaws.ClientConfiguration;
import com.amazonaws.auth.DefaultAWSCredentialsProviderChain;
import com.amazonaws.regions.Region;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.polly.AmazonPollyClient;
import com.amazonaws.services.polly.model.DescribeVoicesRequest;
import com.amazonaws.services.polly.model.DescribeVoicesResult;
import com.amazonaws.services.polly.model.OutputFormat;
import com.amazonaws.services.polly.model.SynthesizeSpeechRequest;
import com.amazonaws.services.polly.model.SynthesizeSpeechResult;
import com.amazonaws.services.polly.model.Voice;
import javazoom.jl.player.advanced.AdvancedPlayer;
import javazoom.jl.player.advanced.PlaybackEvent;
import javazoom.jl.player.advanced.PlaybackListener;
public class PollyDemo {
private final AmazonPollyClient polly;
private final Voice voice;
private static final String JOANNA="Joanna";
private static final String KENDRA="Kendra";
private static final String MATTHEW="Matthew";
private static final String SAMPLE = "Congratulations. You have successfully built this working demo of Amazon Polly in Java. Have fun building voice enabled apps with Amazon Polly (that's me!), and always look at the AWS website for tips and tricks on using Amazon Polly and other great services from AWS";
public PollyDemo(Region region) {
// create an Amazon Polly client in a specific region
polly = new AmazonPollyClient(new DefaultAWSCredentialsProviderChain(),
new ClientConfiguration());
polly.setRegion(region);
// Create describe voices request.
DescribeVoicesRequest describeVoicesRequest = new DescribeVoicesRequest();
// Synchronously ask Amazon Polly to describe available TTS voices.
DescribeVoicesResult describeVoicesResult = polly.describeVoices(describeVoicesRequest);
//voice = describeVoicesResult.getVoices().get(0);
voice = describeVoicesResult.getVoices().stream().filter(p -> p.getName().equals(MATTHEW)).findFirst().get();
}
public InputStream synthesize(String text, OutputFormat format) throws IOException {
SynthesizeSpeechRequest synthReq =
new SynthesizeSpeechRequest().withText(text).withVoiceId(voice.getId())
.withOutputFormat(format);
SynthesizeSpeechResult synthRes = polly.synthesizeSpeech(synthReq);
return synthRes.getAudioStream();
}
public static void main(String args[]) throws Exception {
//create the test class
PollyDemo helloWorld = new PollyDemo(Region.getRegion(Regions.US_WEST_1));
//get the audio stream
InputStream speechStream = helloWorld.synthesize(SAMPLE, OutputFormat.Mp3);
//create an MP3 player
AdvancedPlayer player = new AdvancedPlayer(speechStream,
javazoom.jl.player.FactoryRegistry.systemRegistry().createAudioDevice());
player.setPlayBackListener(new PlaybackListener() {
#Override
public void playbackStarted(PlaybackEvent evt) {
System.out.println("Playback started");
System.out.println(SAMPLE);
}
#Override
public void playbackFinished(PlaybackEvent evt) {
System.out.println("Playback finished");
}
});
// play it!
player.play();
}
}
By default its taking the Standard of the voice of Matthew. Please suggest what needs to be changed to make the speech Neural for the voice of Matthew.
Thanks

Thanks #ASR for your feedback.
I was able to find the engine parameter as you suggested.
The way I had to solve this is:
Update the aws-java-sdk-polly version from 1.11.77 (as they have in their documentation) to the latest 1.11.762 in the pom.xml and build the Maven project. This brings the latest class definition for SynthesizeSpeechRequest Class. With 1.11.77 I was unable to see withEngine function in its definition.
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-polly</artifactId>
<version>1.11.762</version>
</dependency>
Updated the withEngine("neural") as below:
SynthesizeSpeechRequest synthReq =
new SynthesizeSpeechRequest().withText(text).withVoiceId(voice.getId())
.withOutputFormat(format).withEngine("neural");
As defined in https://docs.aws.amazon.com/polly/latest/dg/NTTS-main.html Neural voice is only available in specific regions. So I had to chose as following:
PollyDemo helloWorld = new PollyDemo(Region.getRegion(Regions.US_WEST_2));
After this Neural voice worked perfectly.

I am assuming you are using AWS Java SDK 1.11
AWS documentation here states that you need to set the engine parameter in the speech sysnthesis request to neural. AWS Java SDK documentation here describes the withEngine method to set it to neural.
PS: the documentation page doesn't seem to provide the method URLs, so you will have to search for it.

Xposed Framework hooking Samsung s7 edge system processes?

Im just getting into developing modules for Xposed Framework.
I get a basic module working, just a module that does nothing but saying that its loaded and prints to log.
Next step was to try hooking the Clock in SystemUI, following rovo89's instructions on GitHub (dont know if I can link?)
The code is as follows:
package com.example.xxx.xposedtest;
import android.graphics.Color;
import android.widget.TextView;
import static de.robv.android.xposed.XposedHelpers.findAndHookMethod;
import de.robv.android.xposed.IXposedHookLoadPackage;
import de.robv.android.xposed.XC_MethodHook;
import de.robv.android.xposed.XposedBridge;
import de.robv.android.xposed.callbacks.XC_LoadPackage.LoadPackageParam;
import de.robv.android.xposed.XposedHelpers;
public class xposedTest implements IXposedHookLoadPackage {
public void handleLoadPackage(final LoadPackageParam lpparam) throws Throwable {
if(!lpparam.packageName.equals("com.android.systemui")) {
XposedBridge.log("Did not find package")
return;
}
findAndHookMethod("com.android.systemui.statusbar.policy.Clock", lpparam.classLoader, "updateClock", new XC_MethodHook() {
#Override
protected void afterHookedMethod(MethodHookParam param) throws Throwable {
TextView tv = (TextView) param.thisObject;
String text = tv.getText().toString();
tv.setText(text + " :)");
XposedBridge.log("Package loaded: Function ran");
}
});
}
}
The log says "Did not find package". And the hook method ofcourse did not run.
My guess is that Samsung s7 edge has some kind of other implementation, other class/method name.
How do I find out what method to actually hook since Samsung decided to not go AOSP? All information on the subject is appriciated.

The answer was other xposed modules were interfering.
Answering if anyone encounters the same problem