MainActivity.java

package com.example.cameraintenttest;

import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.provider.MediaStore;
import android.widget.ImageView;

import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {

    private ImageView imageView;

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

        findViewById(R.id.button).setOnClickListener(v ->
                startActivityForResult(new Intent(MediaStore.ACTION_IMAGE_CAPTURE), 0)
        );
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        if (requestCode == 0 && resultCode == RESULT_OK) {
            Bitmap image = (Bitmap) data.getExtras().get("data");
            imageView.setImageBitmap(image);
        }
        super.onActivityResult(requestCode, resultCode, data);
    }
}