How to get network pictures using threads

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:andro
  package="">
  <uses-permission android:name=""></uses-permission>
  <application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity
      android:name=".MainActivity"
      android:label="@string/app_name"
      android:theme="@style/">
      <intent-filter>
        <action android:name="" />
 
        <category android:name="" />
      </intent-filter>
    </activity>
  </application>
 
</manifest>

<?xml version="1.0" encoding="utf-8"?>
< xmlns:andro
  xmlns:app="/apk/res-auto"
  xmlns:tools="/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:fitsSystemWindows="true"
  tools:context="">
 
  <LinearLayout
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <Button
      android:
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="Loading pictures"/>
    <ImageView
      android:
      android:layout_width="match_parent"
      android:layout_height="500dp" />
  </LinearLayout>
 
</>

package ;
 
import ;
import ;
import ;
import ;
import ;
import .;
import ;
import ;
import ;
 
import ;
import ;
import ;
import ;
import ;
 
public class MainActivity extends AppCompatActivity {
  private Button button;
  private ImageView imageView;
  private String imagPath = "/2007-11-09/200711912453162_2.jpg";
  private final int IS_FINISH = 1;
  private Handler handler = new Handler(){
    @Override
    public void handleMessage(Message msg) {
      Bitmap bitmap = (Bitmap);
      (bitmap);
    }
  };
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    (savedInstanceState);
    setContentView(.activity_main);
    button = (Button)findViewById(.button1);
    imageView = (ImageView)findViewById(.image1);
    (new () {
      @Override
      public void onClick(View v) {
        new Thread(new MyClass()).start();
      }
    });
  }
 
  public class MyClass implements Runnable{
 
    @Override
    public void run() {
      Bitmap bitmap = null;
      try {
        URL url = new URL(imagPath);
        HttpURLConnection httpURLConnection = (HttpURLConnection)();
        (true);
        ();
        InputStream inputStream = ();
        bitmap = (inputStream);
      } catch (MalformedURLException e) {
        ();
      } catch (IOException e) {
        ();
      }
      Message message = ();
       = bitmap;
       = IS_FINISH;
      (message);
    }
  }
}