camera

package com.example.camera;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;

import java.io.IOException;
import java.io.InputStream;

public class MainActivity extends AppCompatActivity implements View.OnClickListener{
    Button btnCamera, btnAlbum;
    ImageView imageView;

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

        // 디자인 정의
        btnCamera = (Button) findViewById(R.id.btnPhoto);
        btnAlbum = (Button) findViewById(R.id.btnAlbum);
        imageView = (ImageView) findViewById(R.id.imageView);
        btnCamera.setOnClickListener(this);
        btnAlbum.setOnClickListener(this);
    }

    @Override
    public void onClick(View view)    {
        if (view.getId() == R.id.btnPhoto) {
            Intent i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            startActivityForResult(i, 0);
        } else if (view.getId() == R.id.btnAlbum) {
            Intent intent = new Intent();
            intent.setType("image/*");
            intent.setAction(Intent.ACTION_GET_CONTENT);
            startActivityForResult(intent, 1);
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        if (requestCode == 0 && resultCode == RESULT_OK) {
            Bundle extras = data.getExtras();
            Bitmap imageBitmap = (Bitmap) extras.get("data");
            imageView.setImageBitmap(imageBitmap);
        } else if (requestCode == 1) {
            if(resultCode == RESULT_OK) {
                try {
                    InputStream in = getContentResolver().openInputStream(data.getData());

                    Bitmap img = BitmapFactory.decodeStream(in);
                    in.close();

                    imageView.setImageBitmap(img);
                } catch (Exception e) {
                    Toast.makeText(this, e.toString(), Toast.LENGTH_LONG).show();
                }
            }
            else if(resultCode == RESULT_CANCELED) {
                Toast.makeText(this, "사진 선택 취소", Toast.LENGTH_LONG).show();
            }
        }
    }
}