Android Open Source - digitalcampus Subjects Activity

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Back to project page digitalcampus.

License

The source code is released under:

MIT License

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Java Source Code

package com.llenguatges.digitalcampus.subjects;
/* ww w .  ja  va  2 s.c  o  m*/
import java.util.List;

import android.app.ActionBar;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;

import com.llenguatges.digitalcampus.MyApplication;
import com.llenguatges.digitalcampus.R;
import com.llenguatges.digitalcampus.adapters.SubjectAdapter;
import com.llenguatges.digitalcampus.objects.Subject;

public class SubjectsActivity extends Activity {
  
  private List<Subject> subjectList;
  private ListView listView;
  private SubjectAdapter adapter;
  
  /**
   * Start interacting with the user.
   * Called when previous activity not finished.
   */
  protected void onResume(){
    super.onResume();
    loadView();
  }
  
  /**
   * Called when the activity is first created. 
   * This is where you all of static set up: customize ActionBar. 
   * This method also provides you with a Bundle containing the 
   * activity's previously frozen state, if there was one.
   */
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_subjects);
    ActionBar actionBar = getActionBar();
    actionBar.setSubtitle("Subject managment");
    actionBar.setDisplayHomeAsUpEnabled(true);
  }
  
  /**
   * Load Activity's view and initialize UI actions
   */
  private void loadView(){
    MyApplication myApp = (MyApplication) getApplication();
    subjectList = myApp.getSubjects();
    listView = (ListView) findViewById(R.id.lv);
    adapter = new SubjectAdapter(getApplicationContext(), this, myApp);
    listView.setAdapter(adapter);
    listView.setOnItemClickListener(new OnItemClickListener() { 
      public void onItemClick(AdapterView<?> arg0, View v, int position, long arg3) {
        Intent intent = new Intent().setClass(SubjectsActivity.this, InformationActivity.class);
        Subject subject = new Subject();
        subject = subjectList.get(position);
        intent.putExtra("subject", subject.id); 
        startActivity(intent);
      }
    });
  }
  
  /**
   * Initialize the contents of the Activity's standard options menu.
   */
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.subjects_menu, menu);
        return true;
    }
  
    /**
     * This hook is called whenever an item in your options menu is selected.
     */
  public boolean onOptionsItemSelected(MenuItem item) {
      switch (item.getItemId()) {
          case android.R.id.home:
              this.finish();
              return true;
          case R.id.new_subject:
            Intent intent = new Intent().setClass(SubjectsActivity.this, NewSubjectActivity.class);
        startActivity(intent);
            return true;
          default:
              return super.onOptionsItemSelected(item);
      }
  }
  
}

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