Membuat Aplikasi Portal Berita dengan RestfulApi
Pertama tambahkan beberapa despendecies berikut:
implementation 'com.squareup.retrofit2:retrofit:2.3.0'implementation 'com.squareup.retrofit2:converter-gson:2.3.0'implementation 'com.squareup.picasso:picasso:2.5.2'implementation 'com.android.support:recyclerview-v7:26.1.0'
Kemudian tambahkan permission internet pada Android Manifest
<uses-permission android:name="android.permission.INTERNET"/>
susunan package file java |
import com.khilman.www.aplikasiportalberita.response.ResponseBerita; import retrofit2.Call; import retrofit2.http.GET; public interface ApiServices { //@TIPEMETHOD("API_END_POINT") @GET("tampil_berita.php") Callrequest_show_all_berita(); // nama_method() }
Sekarang
buat class InitRetrofit.java pada package network dan masukan kode berikut:
import retrofit2.Retrofit; import retrofit2.converter.gson.GsonConverterFactory; public class InitRetrofit { // URL Server API public static String API_URL = "http://giviews.000webhostapp.com/berita/"; public static Retrofit setInit() { return new Retrofit.Builder().baseUrl(API_URL) .addConverterFactory(GsonConverterFactory.create()) .build(); } public static ApiServices getInstance() { return setInit().create(ApiServices.class); } }
import com.google.gson.annotations.SerializedName; public class BeritaItem{ @SerializedName("penulis") private String penulis; @SerializedName("foto") private String foto; @SerializedName("id") private String id; @SerializedName("judul_berita") private String judulBerita; @SerializedName("tanggal_posting") private String tanggalPosting; @SerializedName("isi_berita") private String isiBerita; public void setPenulis(String penulis){ this.penulis = penulis; } public String getPenulis(){ return penulis; } public void setFoto(String foto){ this.foto = foto; } public String getFoto(){ return foto; } public void setId(String id){ this.id = id; } public String getId(){ return id; } public void setJudulBerita(String judulBerita){ this.judulBerita = judulBerita; } public String getJudulBerita(){ return judulBerita; } public void setTanggalPosting(String tanggalPosting){ this.tanggalPosting = tanggalPosting; } public String getTanggalPosting(){ return tanggalPosting; } public void setIsiBerita(String isiBerita){ this.isiBerita = isiBerita; } public String getIsiBerita(){ return isiBerita; } @Override public String toString(){ return "BeritaItem{" + "penulis = '" + penulis + '\'' + ",foto = '" + foto + '\'' + ",id = '" + id + '\'' + ",judul_berita = '" + judulBerita + '\'' + ",tanggal_posting = '" + tanggalPosting + '\'' + ",isi_berita = '" + isiBerita + '\'' + "}"; } }
import java.util.List; import com.google.gson.annotations.SerializedName; public class ResponseBerita{ @SerializedName("berita") private Listberita; @SerializedName("status") private boolean status; public void setBerita(List berita){ this.berita = berita; } public List getBerita(){ return berita; } public void setStatus(boolean status){ this.status = status; } public boolean isStatus(){ return status; } @Override public String toString(){ return "ResponseBerita{" + "berita = '" + berita + '\'' + ",status = '" + status + '\'' + "}"; } }
Lalu buat Class AdapterBerita.java pada dan masukan kode berikut:
import android.content.Context; import android.content.Intent; import android.support.v7.widget.RecyclerView; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.TextView; import com.khilman.www.aplikasiportalberita.response.BeritaItem; import com.squareup.picasso.Picasso; import java.util.List; class AdapterBerita extends RecyclerView.Adapter{ // Buat Global variable untuk manampung context Context context; List berita; public AdapterBerita(Context context, List data_berita) { // Inisialisasi this.context = context; this.berita = data_berita; } @Override public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { // Layout inflater View view = LayoutInflater.from(context).inflate(R.layout.berita_item, parent, false); // Hubungkan dengan MyViewHolder MyViewHolder holder = new MyViewHolder(view); return holder; } @Override public void onBindViewHolder(MyViewHolder holder, final int position) { // Set widget holder.tvJudul.setText(berita.get(position).getJudulBerita()); holder.tvTglTerbit.setText(berita.get(position).getTanggalPosting()); // Dapatkan url gambar final String urlGambarBerita = "http://giviews.000webhostapp.com/berita/images/" + berita.get(position).getFoto(); // Set image ke widget dengna menggunakan Library Piccasso // krena imagenya dari internet Picasso.with(context).load(urlGambarBerita).into(holder.ivGambarBerita); // Event klik ketika item list nya di klik holder.itemView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { // Mulai activity Detail Intent varIntent = new Intent(context, DetailActivity.class); // sisipkan data ke intent varIntent.putExtra("JDL_BERITA", berita.get(position).getJudulBerita()); varIntent.putExtra("TGL_BERITA", berita.get(position).getTanggalPosting()); varIntent.putExtra("PNS_BERITA", berita.get(position).getPenulis()); varIntent.putExtra("FTO_BERITA", urlGambarBerita); varIntent.putExtra("ISI_BERITA", berita.get(position).getIsiBerita()); // method startActivity cma bisa di pake di activity/fragment // jadi harus masuk ke context dulu context.startActivity(varIntent); } }); } // Menentukan Jumlah item yang tampil @Override public int getItemCount() { return berita.size(); } public class MyViewHolder extends RecyclerView.ViewHolder { // Deklarasi widget ImageView ivGambarBerita; TextView tvJudul, tvTglTerbit, tvPenulis; public MyViewHolder(View itemView) { super(itemView); // inisialisasi widget ivGambarBerita = (ImageView) itemView.findViewById(R.id.ivPosterBerita); tvJudul = (TextView) itemView.findViewById(R.id.tvJudulBerita); tvTglTerbit = (TextView) itemView.findViewById(R.id.tvTglTerbit); tvPenulis = (TextView) itemView.findViewById(R.id.tvPenulis); } } }
import android.os.Bundle; import android.support.design.widget.FloatingActionButton; import android.support.design.widget.Snackbar; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.view.View; import android.view.WindowManager; import android.webkit.WebView; import android.widget.ImageView; import android.widget.TextView; import com.squareup.picasso.Picasso; public class DetailActivity extends AppCompatActivity { // Deklarasi ImageView ivGambarBerita; TextView tvTglTerbit, tvPenulis; WebView wvKontenBerita; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_detail); Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar); getWindow().setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS); FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab); fab.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG) .setAction("Action", null).show(); } }); // Inisialisasi ivGambarBerita = (ImageView) findViewById(R.id.ivGambarBerita); tvTglTerbit = (TextView) findViewById(R.id.tvTglTerbit); tvPenulis = (TextView) findViewById(R.id.tvPenulis); wvKontenBerita = (WebView) findViewById(R.id.wvKontenBerita); // Jalankan method tampil detail berita showDetailBerita(); } private void showDetailBerita() { // Tangkap data dari intent String judul_berita = getIntent().getStringExtra("JDL_BERITA"); String tanggal_berita = getIntent().getStringExtra("TGL_BERITA"); String penulis_berita = getIntent().getStringExtra("PNS_BERITA"); String isi_berita = getIntent().getStringExtra("ISI_BERITA"); String foto_berita = getIntent().getStringExtra("FTO_BERITA"); // Set judul actionbar / toolbar getSupportActionBar().setTitle(judul_berita); // Set ke widget tvPenulis.setText("Oleh : " + penulis_berita); tvTglTerbit.setText(tanggal_berita); // Untuk gambar berita Picasso.with(this).load(foto_berita).into(ivGambarBerita); // Set isi berita sebagai html ke WebView wvKontenBerita.getSettings().setJavaScriptEnabled(true); wvKontenBerita.loadData(isi_berita, "text/html; charset=utf-8", "UTF-8"); }
import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.support.v7.widget.LinearLayoutManager; import android.support.v7.widget.RecyclerView; import android.util.Log; import android.widget.Toast; import com.khilman.www.aplikasiportalberita.network.ApiServices; import com.khilman.www.aplikasiportalberita.network.InitRetrofit; import com.khilman.www.aplikasiportalberita.response.BeritaItem; import com.khilman.www.aplikasiportalberita.response.ResponseBerita; import java.util.List; import retrofit2.Call; import retrofit2.Callback; import retrofit2.Response; public class MainActivity extends AppCompatActivity { // Deklarasi Widget private RecyclerView recyclerView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // Inisialisasi Widget recyclerView = (RecyclerView) findViewById(R.id.rvListBerita); // RecyclerView harus pakai Layout manager recyclerView.setLayoutManager(new LinearLayoutManager(this)); // Eksekusi method tampilBerita(); } private void tampilBerita() { ApiServices api = InitRetrofit.getInstance(); // Siapkan request CallberitaCall = api.request_show_all_berita(); // Kirim request beritaCall.enqueue(new Callback () { @Override public void onResponse(Call call, Response response) { // Pasikan response Sukses if (response.isSuccessful()){ Log.d("response api", response.body().toString()); // tampung data response body ke variable List data_berita = response.body().getBerita(); boolean status = response.body().isStatus(); // Kalau response status nya = true if (status){ // Buat Adapter untuk recycler view AdapterBerita adapter = new AdapterBerita(MainActivity.this, data_berita); recyclerView.setAdapter(adapter); } else { // kalau tidak true Toast.makeText(MainActivity.this, "Tidak ada berita untuk saat ini", Toast.LENGTH_SHORT).show(); } } } @Override public void onFailure(Call call, Throwable t) { // print ke log jika Error t.printStackTrace(); } }); } }
Selanjutnya buat layout berita_item.xml kemudian masukan kode berikut:
xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="wrap_content" android:paddingVertical="5dp">
<ImageView android:id="@+id/ivPosterBerita" android:layout_width="match_parent" android:layout_height="130dp" android:layout_marginHorizontal="10dp" android:scaleType="fitXY" android:src="@mipmap/ic_launcher"/>
<TextView android:id="@+id/tvJudulBerita" android:layout_width="match_parent" android:layout_height="wrap_content" android:textSize="18sp" android:layout_marginVertical="10dp" android:layout_marginHorizontal="10dp" android:textColor="@android:color/black" android:text="Judul Artikel Berita"/>
<LinearLayout android:layout_marginHorizontal="10dp" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal">
<TextView android:id="@+id/tvTglTerbit" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Sabtu, 12 Maret 2018."/>
<TextView android:id="@+id/tvPenulis" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginHorizontal="10dp" android:text="Oleh : Rizal Hilman"/>
</LinearLayout>
</LinearLayout>
xml version="1.0" encoding="utf-8"?><android.support.v4.widget.NestedScrollView 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" app:layout_behavior="@string/appbar_scrolling_view_behavior" tools:context=".DetailActivity" tools:showIn="@layout/activity_detail">
<LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:padding="10dp" android:orientation="vertical">
<LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginBottom="15dp" android:orientation="horizontal">
<TextView android:id="@+id/tvTglTerbit" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Senin, 12 Maret 2018"/>
<TextView android:id="@+id/tvPenulis" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginHorizontal="10dp" android:text="Oleh : Rizal Hilman"/>
</LinearLayout>
<WebView android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/wvKontenBerita"></WebView>
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
xml version="1.0" encoding="utf-8"?><LinearLayout 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" android:orientation="vertical" tools:context=".MainActivity">
<android.support.v7.widget.RecyclerView android:id="@+id/rvListBerita" android:layout_width="match_parent" android:layout_height="match_parent" />
</LinearLayout>
xml version="1.0" encoding="utf-8"?><android.support.design.widget.CoordinatorLayout 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" android:fitsSystemWindows="true" tools:context="com.khilman.www.aplikasiportalberita.DetailActivity">
<android.support.design.widget.AppBarLayout android:id="@+id/app_bar" android:layout_width="match_parent" android:layout_height="@dimen/app_bar_height" android:fitsSystemWindows="true" android:theme="@style/AppTheme.AppBarOverlay">
<android.support.design.widget.CollapsingToolbarLayout android:id="@+id/toolbar_layout" android:layout_width="match_parent" android:layout_height="match_parent" android:fitsSystemWindows="true" app:contentScrim="?attr/colorPrimary" app:layout_scrollFlags="scroll|exitUntilCollapsed" app:toolbarId="@+id/toolbar">
<ImageView android:id="@+id/ivGambarBerita" android:layout_width="match_parent" android:layout_height="match_parent" android:src="@mipmap/ic_launcher" android:scaleType="fitXY"/>
<android.support.v7.widget.Toolbar android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="?attr/actionBarSize" app:layout_collapseMode="pin" app:popupTheme="@style/AppTheme.PopupOverlay" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<include layout="@layout/content_detail" />
<android.support.design.widget.FloatingActionButton android:id="@+id/fab" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_margin="@dimen/fab_margin" app:layout_anchor="@id/app_bar" app:layout_anchorGravity="bottom|end" app:srcCompat="@android:drawable/ic_dialog_email" />
</android.support.design.widget.CoordinatorLayout>
Sekarang coba jalankan aplikasi anda jika ada yang kurang jelas silakan ditanyakan pada kolom komentar dibawah, terimakasih sudah berkunjung ke blog kami semoga tutorial ini bermanfaat
sumber: https://medium.com/@rizal_hilman/aplikasi-portal-berita-android-dengan-php-mysqli-belajarapi-ccde39565403
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