From 61c9379b05b33efca3c6d126e437bc73038ccf42 Mon Sep 17 00:00:00 2001
From: tokugawa <brodenmayer@yahoo.com>
Date: Sun, 9 Mar 2014 17:55:22 -0400
Subject: [PATCH] Added Async functionality and grid display. Still need to fix
 sizes and display text  under pictures.

---
 InClass3/project.properties                   |   1 +
 InClass3/res/layout/activity_photo.xml        |  21 ++-
 InClass3/res/values/integers.xml              |   5 +
 InClass3/res/values/strings.xml               |   1 +
 .../edu/uncc/itcs4180/hw4/PhotoActivity.java  | 133 ++++++++++++++++++
 5 files changed, 159 insertions(+), 2 deletions(-)
 create mode 100644 InClass3/res/values/integers.xml

diff --git a/InClass3/project.properties b/InClass3/project.properties
index 4ab1256..6759fcc 100644
--- a/InClass3/project.properties
+++ b/InClass3/project.properties
@@ -12,3 +12,4 @@
 
 # Project target.
 target=android-19
+android.library.reference.1=../../../workspace/gridlayout_v7
diff --git a/InClass3/res/layout/activity_photo.xml b/InClass3/res/layout/activity_photo.xml
index 2ff3dd9..386c367 100644
--- a/InClass3/res/layout/activity_photo.xml
+++ b/InClass3/res/layout/activity_photo.xml
@@ -1,11 +1,28 @@
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/LinearLayout1"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:orientation="vertical"
     android:paddingBottom="@dimen/activity_vertical_margin"
     android:paddingLeft="@dimen/activity_horizontal_margin"
     android:paddingRight="@dimen/activity_horizontal_margin"
     android:paddingTop="@dimen/activity_vertical_margin"
     tools:context=".PhotoActivity" >
 
-</RelativeLayout>
+    <GridView
+        android:id="@+id/GridView1"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1" 
+        android:numColumns="@integer/COLUMN_COUNT" 
+        android:columnWidth="90dp" />
+    
+    <Button
+        android:id="@+id/ExitButton"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_gravity="bottom"
+        android:text="@string/Exit" />
+
+</LinearLayout>
diff --git a/InClass3/res/values/integers.xml b/InClass3/res/values/integers.xml
new file mode 100644
index 0000000..d2e771d
--- /dev/null
+++ b/InClass3/res/values/integers.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <integer name="ROW_COUNT">2</integer>
+    <integer name="COLUMN_COUNT">2</integer>
+</resources>
diff --git a/InClass3/res/values/strings.xml b/InClass3/res/values/strings.xml
index 9ae6218..a802a4e 100644
--- a/InClass3/res/values/strings.xml
+++ b/InClass3/res/values/strings.xml
@@ -10,5 +10,6 @@
     <string name="football_main_image">http://farm9.staticflickr.com/8441/7882624916_5f62cb318f_z.jpg</string>
     <string name="title_activity_photo">UNC Charlotte Photos</string>
     <string name="title_activity_photo_thread">UNC Charlotte Photos</string>
+    <string name="Exit">Exit</string>
 
 </resources>
diff --git a/InClass3/src/edu/uncc/itcs4180/hw4/PhotoActivity.java b/InClass3/src/edu/uncc/itcs4180/hw4/PhotoActivity.java
index 0c9c8dd..de75b40 100644
--- a/InClass3/src/edu/uncc/itcs4180/hw4/PhotoActivity.java
+++ b/InClass3/src/edu/uncc/itcs4180/hw4/PhotoActivity.java
@@ -1,15 +1,63 @@
 package edu.uncc.itcs4180.hw4;
 
+import java.net.URL;
+import java.util.ArrayList;
+
+import android.os.AsyncTask;
 import android.os.Bundle;
 import android.app.Activity;
+import android.app.ProgressDialog;
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
 import android.view.Menu;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.Button;
+import android.widget.GridView;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
 
 public class PhotoActivity extends Activity {
 
+	ProgressDialog progress;
+	LinearLayout root;
+	GridView photoGrid;
+	public int[] imageUrlIds = {R.string.uncc_main_image, R.string.football_main_image,
+			R.string.ifest_main_image, R.string.commencement_main_image
+	};
+	ArrayList<Bitmap> bitmapList = new ArrayList<Bitmap>();
+	int downloadProgress;
+	
 	@Override
 	protected void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
 		setContentView(R.layout.activity_photo);
+		
+		root = (LinearLayout)findViewById(R.id.LinearLayout1);
+		photoGrid = (GridView)findViewById(R.id.GridView1);
+		downloadProgress = 0;
+		
+		//set the progress dialog
+		progress = new ProgressDialog(this);
+		progress.setMessage("Loading...");
+		progress.setCancelable(false);
+		progress.show();
+		
+		for(int x : imageUrlIds)//download images
+		{
+			new DownloadPhoto().execute(getString(x));
+		}
+		
+		//create exit button
+		Button exit = (Button)findViewById(R.id.ExitButton);
+		exit.setOnClickListener(new View.OnClickListener() {
+			public void onClick(View v)
+			{
+				finish();
+			}
+		});
 	}
 
 	@Override
@@ -18,5 +66,90 @@ public class PhotoActivity extends Activity {
 		getMenuInflater().inflate(R.menu.photo, menu);
 		return true;
 	}
+	
+	private class DownloadPhoto 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)//set failed images to a default image
+			{
+				//set blank image
+			}
 
+			bitmapList.add(result);
+			
+			downloadProgress++;
+			if(downloadProgress>=imageUrlIds.length)
+			{
+				progress.dismiss();
+				photoGrid.setAdapter(new ImageAdapter(photoGrid.getContext()));
+			}
+		}
+	}
+	
+	public class ImageAdapter extends BaseAdapter
+	{
+		private Context context;
+		
+		public ImageAdapter(Context context)
+		{
+			this.context = context;
+		}
+		
+		@Override
+		public int getCount() 
+		{
+			return imageUrlIds.length;
+		}
+
+		@Override
+		public Object getItem(int position) 
+		{
+			return position;
+		}
+
+		@Override
+		public long getItemId(int position) 
+		{
+			return position;
+		}
+
+		@Override
+		public View getView(int position, View convertView, ViewGroup parent) 
+		{
+			ImageView newImageView = new ImageView(getBaseContext());
+			
+			if(convertView == null)
+			{
+				newImageView.setLayoutParams(new GridView.LayoutParams(
+						140, 140));
+				newImageView.setPadding(5, 5, 5, 5);
+			}
+			else
+			{
+				newImageView = (ImageView) convertView;
+			}
+			newImageView.setImageBitmap(bitmapList.get(position));
+			
+			return newImageView;
+		}
+	}
 }