package /*pkgname*/;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import com.google.gson.Gson;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import javax.net.ssl.HttpsURLConnection;
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
ArrayList<News> news;
String result = new String();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
LinearLayoutManager layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
recyclerView.addItemDecoration(new SpaceItemDecoration(1));
news = getNews();
NewsAdapter newsAdapter = new NewsAdapter(news);
recyclerView.setAdapter(newsAdapter);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
public ArrayList<News> getNews() {
Gson jsoner = new Gson();
ArrayList<News> newsArrayList = new ArrayList<>();
News[] news;
AsyncGet asyncGet = new AsyncGet();
asyncGet.execute();
try {
news = jsoner.fromJson(asyncGet.get(3, TimeUnit.SECONDS), News[].class);
for (int i = 0; i < news.length; i++) newsArrayList.add(news[i]);
} catch (Exception e) {
}
return newsArrayList;
}
class AsyncGet extends AsyncTask<String, Integer, String> {
@Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
result = s;
}
@Override
protected String doInBackground(String... strings) {
InputStream stream = null;
HttpURLConnection connection = null;
try {
connection = (HttpURLConnection) new URL("http:// /*sitepath*/ uploaderl.php?action=get").openConnection();
// Timeout for reading InputStream arbitrarily set to 3000ms.
connection.setReadTimeout(3000);
// Timeout for connection.connect() arbitrarily set to 3000ms.
connection.setConnectTimeout(3000);
// For this use case, set HTTP method to GET.
connection.setRequestMethod("GET");
// Already true by default but setting just in case; needs to be true since this request
// is carrying an input (response) body.
connection.setDoInput(true);
// Open communications link (network traffic occurs here).
connection.connect();
int responseCode = connection.getResponseCode();
if (responseCode != HttpsURLConnection.HTTP_OK) {
throw new IOException("HTTP error code: " + responseCode);
}
// Retrieve the response body as an InputStream.
stream = connection.getInputStream();
if (stream != null) {
// Converts Stream to String with max length of 500.
result = readStream(stream, Integer.MAX_VALUE);
}
} catch (Exception e) {
} finally {
// Close Stream and disconnect HTTPS connection.
if (stream != null) {
try {
stream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (connection != null) {
connection.disconnect();
}
}
return result;
}
}
public String readStream(InputStream stream, int maxReadSize)
throws IOException, UnsupportedEncodingException {
Reader reader = null;
reader = new InputStreamReader(stream, "UTF-8");
char[] rawBuffer = new char[maxReadSize];
int readSize;
StringBuffer buffer = new StringBuffer();
while (((readSize = reader.read(rawBuffer)) != -1) && maxReadSize > 0) {
if (readSize > maxReadSize) {
readSize = maxReadSize;
}
buffer.append(rawBuffer, 0, readSize);
maxReadSize -= readSize;
}
return buffer.toString();
}
}
Простой
