FP PBO

Pembuatan Aplikasi berbasis Android

Aplikasi tentang Kamera dan Sensor GPS

Kevin Ashil Faadilah
05111740000178
PBO-B

Deskripsi singkat :
Aplikasi ini memuat tentang Kamera yang dapat menangkap foto dan deteksi lokasi melalui Koordinat yang dimana menggunakan Sensor GPS disediakan oleh library pada android.

Source Code dibagi menjadi dua, yaitu 

a. Source Code Tampilan menggunakan file .xml 

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.cobakamera.MainActivity">

    <Button
        android:id="@+id/btnAmbil"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="52dp"
        android:text="Ambil Foto"
        app:layout_constraintBottom_toTopOf="@+id/btnUpload"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.498"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/imageView2"
        app:layout_constraintVertical_bias="0.0" />

    <ImageView
        android:id="@+id/imageView2"
        android:layout_width="300dp"
        android:layout_height="300dp"
        android:layout_marginTop="72dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.495"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        tools:srcCompat="@tools:sample/avatars" />

    <Button
        android:id="@+id/btnUpload"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="180dp"
        android:text="Upload Foto"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.498"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/btnAmbil"
        app:layout_constraintVertical_bias="1.0" />

    <TextView
        android:id="@+id/sensorData"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.498"
        app:layout_constraintStart_toStartOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

b. Source Code untuk program/Main Activity :

package com.example.cobakamera;

import androidx.annotation.Nullable;
import androidx.annotation.RequiresApi;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.content.FileProvider;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;

import android.Manifest;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.icu.text.SimpleDateFormat;
import android.location.Location;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.example.cobakamera.ApiService;
import com.example.cobakamera.ApiUtils;
import com.example.cobakamera.R;
import com.example.cobakamera.Post;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.SocketTimeoutException;
import java.text.DateFormat;
import java.util.Base64;
import java.util.Date;

public class MainActivity extends AppCompatActivity implements SensorEventListener {
    private static final int KODE_KAMERA = 555;
    private static final int MY_PERMISSION_WRITE_FILE = 556;
    Button btnAmbilKamera, btnUploadFoto;
    ImageView imgFoto;
    String namaFile, base64Encode;
//    Retrofit
    private ApiService mAPIService;
//    SensorManager
    private SensorManager manager;
    private Sensor accelerometer;
    private TextView textView;
    private float xAcceleration,yAcceleration,zAcceleration;

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

        btnAmbilKamera = (Button) findViewById(R.id.btnAmbil);
        btnUploadFoto = (Button) findViewById(R.id.btnUpload);
        imgFoto = (ImageView) findViewById(R.id.imageView2);

//        Retrofit
        mAPIService = ApiUtils.getAPIService();

//        SensorManager
        textView = (TextView)findViewById(R.id.sensorData);
        manager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
        accelerometer = manager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);

//       CAPTURE FOTO DAN MENYIMPAN MENGGUNAKAN METHOD putExtra
        btnAmbilKamera.setOnClickListener(new View.OnClickListener() {
            @RequiresApi(api = Build.VERSION_CODES.N)
            @Override
            public void onClick(View view) {
                Intent intentKamera = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
//                startActivityForResult(intentKamera, 0);
//                File imagesFolder = new File(Environment.getExternalStorageDirectory(), "HasilFoto");
//                imagesFolder.mkdirs();
//                Date tanggalSekarang = new Date();
//                String formatNama = new SimpleDateFormat("yyyyMMdd_HHmmss").format(tanggalSekarang);
//                namaFile = imagesFolder + File.separator + formatNama + ".jpg";
//
//                File image = new File(namaFile);
//                Uri uriSavedImage = FileProvider.getUriForFile(MainActivity.this, "com.example.nanta.cobakamera.provider", image);
//
////              Menyimpan dengan menggunakan putExtra
//                intentKamera.putExtra(MediaStore.EXTRA_OUTPUT, uriSavedImage);
//                VOID Function
                startActivityForResult(intentKamera, KODE_KAMERA);
//                Log.d("TESTES", "TESTES");
            }
        });

        btnUploadFoto.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                uploadFoto(base64Encode);
            }
        });

    }

    @RequiresApi(api = Build.VERSION_CODES.N)
    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        Log.d("VALUE RESULT CODE", String.valueOf(resultCode));
        if (resultCode == Activity.RESULT_OK) {
            switch (requestCode) {
                case (KODE_KAMERA):
                    try {
//
                        Log.d("TESPROSES", "TESPROSES");
                        prosesKamera(data);
                        Log.d("TESTES2", "TESTES2");
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                    break;

            }
        }
    }

    @RequiresApi(api = Build.VERSION_CODES.N)
    private void prosesKamera(Intent kamera) throws IOException {
        Bitmap bm;
        bm = (Bitmap) kamera.getExtras().get("data");
        imgFoto.setImageBitmap(bm);

        ByteArrayOutputStream stream = new ByteArrayOutputStream();

        bm.compress(Bitmap.CompressFormat.PNG, 100, stream);
        byte[] byteArray = stream.toByteArray();

        File dir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
        Date tanggalSekarang = new Date();
        String formatNama = new SimpleDateFormat("yyyyMMdd_HHmmss").format(tanggalSekarang);
        namaFile = formatNama + ".png";
        File output = new File(dir, namaFile);
        FileOutputStream fo = new FileOutputStream(output);
        fo.write(byteArray);
        fo.flush();
        fo.close();
//        ENCODE BYTE ARRAY
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            base64Encode = Base64.getEncoder().encodeToString(byteArray);
            Log.d("ISI BASE64", base64Encode);
        }
        Toast.makeText(this, "Data Telah Terload ke ImageView", Toast.LENGTH_LONG).show();
    }

    private void askWritePermission() {
        if(Build.VERSION.SDK_INT >= 23) {
            int cameraPermission = this.checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE);
            if(cameraPermission != PackageManager.PERMISSION_GRANTED) {
                this.requestPermissions(new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE}, MY_PERMISSION_WRITE_FILE);
            }
        }

    }

    private void uploadFoto(String base64) {
        if(base64 == null) {
//            Toast.makeText(getBaseContext(), "ADA ISINYA", Toast.LENGTH_LONG).show();
            Toast.makeText(getBaseContext(), "Belum Ada Foto", Toast.LENGTH_LONG).show();
        }
        else {
            Log.d("CEKISI", base64);
//            String tes = "nyobak";
            //            Do Retrofit HERE
            mAPIService.savePost(base64).enqueue(new Callback<Post>() {
                @Override
                public void onResponse(Call<Post> call, Response<Post> response) {
                    if(response.isSuccessful()) {
                        Toast.makeText(getBaseContext(), "Foto Berhasil Dikirim ke API " + response.body().toString(), Toast.LENGTH_LONG).show();
                        Log.i("POST BERHASIL", "Foto Berhasil Terupload melalui API " + response.body().toString());
                    }
                }

                @Override
                public void onFailure(Call<Post> call, Throwable t) {
                    Log.d("Call", String.valueOf(call));
                    Log.d("Throwable", String.valueOf(t));
                    if (t instanceof SocketTimeoutException)
                    {
                        // "Connection Timeout";
                        Log.d("SocketTimeoutException", "SocketTimeoutException Error");
                    }
                    else if (t instanceof IOException)
                    {
                        // "Timeout";
                        Log.d("TIMEOUT", "IOException Error");
                    }
                    else
                    {
                        //Call was cancelled by user
                        if(call.isCanceled())
                        {
                            Log.d("CANCELED", "Call was cancelled forcefully");
                        }
                        else
                        {
                            //Generic error handling
                            Log.d("GENERIC" ,"Network Error :: " + t.getLocalizedMessage());
                        }
                    }
                    Toast.makeText(getBaseContext(), "Gagal Mengirim Foto", Toast.LENGTH_LONG).show();
                }
            });
        }
    }

    @Override
    public void onSensorChanged(SensorEvent event) {
        if(event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
            xAcceleration = event.values[0];
            yAcceleration = event.values[1];
            zAcceleration = event.values[2];
            textView.setText("x:"+xAcceleration+"\nY:"+yAcceleration+"\nZ:"+zAcceleration);
        }
    }

    @Override
    public void onAccuracyChanged(Sensor sensor, int accuracy) {

    }

    @Override
    protected void onStart() {
        super.onStart();
        manager.registerListener(this, accelerometer, SensorManager.SENSOR_DELAY_UI);
    }

    @Override
    protected void onPause() {
        super.onPause();
        manager.unregisterListener(this);
    }
}

Kemudian berikut adalah tampilan : 

Demo

1. Kodingan = https://youtu.be/H_F2EWpRZqM
2. Aplikasi = https://youtu.be/K6i_NOoz60s

Download Apps : https://github.com/forfeitsch/cobaKameraApp