Kotlin in Java übersetzen

[Liked]

Hallo,

ich bräuchte eure Hilfe. Ich versuche gerade Kotlin in Java für ein Android zu übersetzen. Ich hänge dabei an einer Zeile..
val intent = Intent(applicationContext, BarcodeCaptureActivity::class.java)
Was wäre das Äquivalent in Java?

Kotlin Code:

package com.varvet.barcodereadersample

import android.content.Intent
import android.os.Bundle
import android.support.v7.app.AppCompatActivity
import android.util.Log
import android.widget.Button
import android.widget.TextView
import com.google.android.gms.common.api.CommonStatusCodes
import com.google.android.gms.vision.barcode.Barcode
import com.varvet.barcodereadersample.barcode.BarcodeCaptureActivity
import java.io.BufferedReader
import java.io.InputStreamReader
import java.net.HttpURLConnection
import java.net.URL

class MainActivity : AppCompatActivity() {

    private lateinit var mResultTextView: TextView

    override fun onCreate(savedInstanceState: Bundle?) {

        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        mResultTextView = findViewById(R.id.result_textview)

        findViewById<Button>(R.id.scan_barcode_button).setOnClickListener {
            val intent = Intent(applicationContext, BarcodeCaptureActivity::class.java)
            startActivityForResult(intent, BARCODE_READER_REQUEST_CODE)
        }
    }

    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        if (requestCode == BARCODE_READER_REQUEST_CODE) {
            if (resultCode == CommonStatusCodes.SUCCESS) {
                if (data != null) {
                    val barcode = data.getParcelableExtra<Barcode>(BarcodeCaptureActivity.BarcodeObject)
                    val p = barcode.cornerPoints
                    mResultTextView.text = barcode.displayValue
;
                } else
                    mResultTextView.setText(R.string.no_barcode_captured)
            } else
                Log.e(LOG_TAG, String.format(getString(R.string.barcode_error_format),
                        CommonStatusCodes.getStatusCodeString(resultCode)))
        } else
            super.onActivityResult(requestCode, resultCode, data)
    }

    companion object {
        private val LOG_TAG = MainActivity::class.java.simpleName
        private val BARCODE_READER_REQUEST_CODE = 1
    }

}

Das was ich bisher nach Java übersetzt habe:

package com.varvet.barcodereadersample;

import android.content.Intent;
import android.os.Bundle;
import android.os.PersistableBundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import com.google.android.gms.common.api.CommonStatusCodes;
import com.google.android.gms.vision.barcode.Barcode;
import com.varvet.barcodereadersample.barcode.BarcodeCaptureActivity;



public class MainActivityy extends AppCompatActivity{

    private TextView mResultTextView;
    int BARCODE_READER_REQUEST_CODE;
    String LOG_TAG;

    @Override
    protected void onCreate( @Nullable Bundle savedInstanceState ) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mResultTextView = findViewById(R.id.result_textview);

        findViewById(R.id.scan_barcode_button).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick( View view ) {
/** -------------> An der Zeile darunter hänge ich ... <------------ **/
                Intent intent = new Intent(/** fehlt **/ );
                startActivityForResult(intent, BARCODE_READER_REQUEST_CODE);
            }
        });
    }

    protected void onActivityResult(int requestCode, int resultCode, Intent data){
        if(requestCode == BARCODE_READER_REQUEST_CODE){
            if(resultCode == CommonStatusCodes.SUCCESS){
                if(data != null){
                    Barcode barcode = data.getParcelableExtra(BarcodeCaptureActivity.BarcodeObject);
                    mResultTextView.setText(barcode.displayValue);
                }
                else {
                    mResultTextView.setText("No Barcode Captured!");
                }
            }
            else{
                Log.e(LOG_TAG, String.format("Error Reading Barcode: %s", CommonStatusCodes.getStatusCodeString(resultCode)));
            }
        }
        else{
            super.onActivityResult(requestCode, resultCode, data);
        }
    }
}

Ergänzung (1. April 2018)

Lösung:
Intent intent = new Intent(getApplicationContext(), BarcodeCaptureActivity.class);
war doch nicht so schwer

 

[Lacritz]

Wenn du ganz genau sein willst, müsste dein intent noch final sein.

Ansonsten ist :: der der implizite Call einer Methodenreferenz.