Java tutorial
/** License: GPL 2.0 Copyright (C) 2012 Benson Trinh, Thomas Polasek, Remco Uittenbogerd, Clinton Wong This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. **/ package com.cmput301.classproject.UI; import java.util.*; import com.cmput301.classproject.R; import com.cmput301.classproject.Model.Submission; import android.os.Bundle; import android.app.Activity; import android.content.Context; import android.graphics.Bitmap; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.GridView; import android.widget.ImageView; import android.widget.TextView; import android.support.v4.app.NavUtils; public class SubmissionViewActivity extends Activity implements Observer { private Submission submission = null; // this is passed to from // TaskView Activity private ArrayList<Bitmap> submissionPhotos; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_submission_view); getActionBar().setDisplayHomeAsUpEnabled(false); Bundle extras = getIntent().getExtras(); if (extras != null) { this.submission = (Submission) extras.getSerializable("Submission"); } if (submission == null) { finish(); } else { submissionPhotos = submission.getImages(); // Start recognizing the Layout elements. GridView gridView = (GridView) findViewById(R.id.submissionPhotoList); gridView.setAdapter(new ImageAdapter(this)); // Fill out activity view using the submission object TextView authorText = (TextView) findViewById(R.id.view_author_name); authorText.setText(submission.getAuthor()); TextView submissionSummary = (TextView) findViewById(R.id.view_submission_summary); submissionSummary.setText(submission.getSummary()); TextView submissionText = (TextView) findViewById(R.id.view_submission_text); submissionText.setText(submission.getTextSubmission()); TextView access = (TextView) findViewById(R.id.view_submission_access); access.setText(submission.getAccess().toString()); // TODO display timestamp, at the moment we only save it. } } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_submission_view, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case android.R.id.home: NavUtils.navigateUpFromSameTask(this); return true; } return super.onOptionsItemSelected(item); } /** * Name: okayClicked Description: User is finished viewing the submission * this will redirect them back to the ViewTasksActivity * * @param v */ public void okayClicked(View v) { finish(); } /** * Name: update Description: Model has called to update the view with new * data. This will update the Submission Activity with the new data. * * @param s * @param arg */ public void update(Observable s, Object arg) { // Do nothing. } /** * ImageAdapter Class to support putting thumbnails into list views. Will * also have a modified implementation into ViewSubmission activity. This is * tailored to fit ListViews. */ public class ImageAdapter extends BaseAdapter { private Context context; public ImageAdapter(Context C) { context = C; } public int getCount() { return submissionPhotos.size(); } public Object getItem(int arg0) { return submissionPhotos.get(arg0); } public long getItemId(int arg0) { return arg0; } public View getView(int position, View convertView, ViewGroup parent) { ImageView imageView; if (convertView == null) { imageView = new ImageView(context); imageView.setLayoutParams(new GridView.LayoutParams(400, 400)); imageView.setScaleType(ImageView.ScaleType.CENTER_CROP); imageView.setPadding(5, 5, 5, 5); } else { imageView = (ImageView) convertView; } imageView.setImageBitmap(submissionPhotos.get(position)); return imageView; } } }