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Code Issues Releases Wiki Activity

Added gallery function

master
tokugawa 2014-03-24 23:39:03 -04:00
parent 8a1acefb21
commit 5615978ba0
3 changed files with 164 additions and 16 deletions
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13
HW4/res/layout/activity_gallery.xml
View File

@ -10,9 +10,18 @@
<GridView
android:id="@+id/gallery"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_margin="5dp"
android:layout_weight="1"
android:columnWidth="50dp"
android:numColumns="4" />
<Button
android:id="@+id/buttonExit"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:numColumns="4" >
</GridView>
android:layout_gravity="bottom"
android:text="@string/exit_button_text" />
</LinearLayout>

161
HW4/src/com/example/hw4/GalleryActivity.java
View File

@ -7,19 +7,45 @@ package com.example.hw4;
* GalleryActivity.java
*/
import java.net.URL;
import java.util.ArrayList;
import com.example.hw4.MainActivity.Holder;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
public class GalleryActivity extends Activity
{
GridView gallery;
int thumbsId;
ImageView imageView;
Button exitButton;
String[] thumbUrls;
ArrayList<Bitmap> thumbs;
ImageAdapter imageAdapter;
Intent imageViewerIntent;
ProgressDialog progress;
int photosId;
@Override
protected void onCreate(Bundle savedInstanceState)
@ -27,8 +53,29 @@ public class GalleryActivity extends Activity
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_gallery);
thumbsId = getIntent().getExtras().getInt("thumbsId");
Toast.makeText(getApplicationContext(), thumbsId, Toast.LENGTH_LONG).show();
imageViewerIntent = new Intent(this, ImageViewerActivity.class);
thumbUrls = getResources().getStringArray(getIntent().getExtras().getInt("thumbsId"));
photosId = getIntent().getExtras().getInt("photosId");
gallery = (GridView)findViewById(R.id.gallery);
exitButton = (Button)findViewById(R.id.buttonExit);
thumbs = new ArrayList<Bitmap>();
progress = new ProgressDialog(this);
progress.setMessage("Loading...");
progress.setCancelable(false);
progress.show();
for(String url: thumbUrls)
{
new DownloadThumbs().execute(url);
}
exitButton.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
finish();
}
});
}
@Override
@ -39,15 +86,105 @@ public class GalleryActivity extends Activity
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();
if (id == R.id.action_settings) {
return true;
private class DownloadThumbs extends AsyncTask<String, Void, Bitmap>
{
@Override
protected Bitmap doInBackground(String... url)
{
Bitmap image = null;
try
{
URL imageUrl = new URL(url[0]);
image = BitmapFactory.decodeStream(imageUrl.openStream());
}
catch(Exception e)
{
e.printStackTrace();
}
return image;
}
@Override
protected void onPostExecute(Bitmap result)
{
if(result != null)
{
thumbs.add(result);
}
else
{
thumbs.add(BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher));
}
if(thumbs.size() >= thumbUrls.length)
{
imageAdapter = new ImageAdapter(gallery.getContext());
gallery.setAdapter(imageAdapter);
gallery.setOnItemClickListener(new OnItemClickListener()
{
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id)
{
imageViewerIntent.putExtra("urls", (int)photosId);
imageViewerIntent.putExtra("index", (int)position);
startActivity(imageViewerIntent);
}
});
progress.dismiss();
}
}
}
public class ImageAdapter extends BaseAdapter
{
private Context context;
public ImageAdapter(Context context)
{
this.context = context;
}
@Override
public int getCount()
{
return thumbs.size();
}
@Override
public Object getItem(int position)//no purpose.
{
return position;
}
@Override
public long getItemId(int position)//no purpose. only to fill the requirement of needing the method.
{
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent)
{
ImageView imageView;
View vi = convertView;
if(vi == null)
{
imageView = new ImageView(getBaseContext());
//imageView.setLayoutParams(new GridView.LayoutParams(50,50));
imageView.setPadding(5, 5, 5, 5);
}
else
{
imageView = (ImageView)vi;
}
imageView.setImageBitmap(thumbs.get(position));
return imageView;
}
return super.onOptionsItemSelected(item);
}
}

6
HW4/src/com/example/hw4/MainActivity.java
View File

@ -41,6 +41,7 @@ public class MainActivity extends Activity {
};
int[] imageNames = {R.string.label_uncc, R.string.label_sports, R.string.label_ifest, R.string.label_commencement};
int[] thumbNames = {R.array.uncc_thumbs, R.array.football_thumbs, R.array.ifest_thumbs, R.array.commencement_thumbs};
int[] photoNames = {R.array.uncc_photos, R.array.football_photos, R.array.ifest_photos, R.array.commencement_photos};
ArrayList<Bitmap> bitmapList = new ArrayList<Bitmap>();
ArrayList<String> bitmapNames = new ArrayList<String>();
int downloadProgress;
@ -125,8 +126,9 @@ public class MainActivity extends Activity {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id)
{
//Send intent with R.array.label
galleryIntent.putExtra("thumbsId", (Integer)(imageAdapter.getItem(position)));
//Send intent with thumbs and photos id
galleryIntent.putExtra("thumbsId", thumbNames[position]);
galleryIntent.putExtra("photosId", photoNames[position]);
startActivity(galleryIntent);
}
});