thoerup/side9/PictureView.java

package dk.thoerup.side9;

import java.io.File;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.util.ArrayList;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;

public class PictureView extends Activity {
        final static int CONTEXT_VIEWIMG = 1000;

        final static String TAG = "Side9Pigen";
        
        TextView mDescription;
        TextView mCaption;
        ImageView mImageView;
        ArrayList<String> mImagePaths;
        int mIndex;
        
        
        Bitmap mBitmap;
        
        @SuppressWarnings("unchecked")
        @Override
        public void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.pictureview);
                
                mImagePaths = (ArrayList<String>) getIntent().getSerializableExtra("files");
                mIndex = getIntent().getIntExtra("index", 0);
                
                
                mImageView = (ImageView) findViewById(R.id.imageview);
                mImageView.setOnTouchListener( new Touch() );
                
                mCaption = (TextView) findViewById(R.id.caption);
                mDescription = (TextView) findViewById(R.id.description);
                
                
                loadImage();
                
        }
        
        
        private void loadImage(int newIndex) {
                Log.e(TAG, "NewIndex " + newIndex);
                if (newIndex != mIndex) {
                        mIndex = newIndex;
                        loadImage();
                }
        }
        
        private void loadImage() {
                String currentFile = mImagePaths.get(mIndex);
                mBitmap = BitmapFactory.decodeFile( currentFile );
                mImageView.setImageBitmap(mBitmap);             
                
                String pathParts[] = currentFile.split("/");
                String fileName = pathParts[ pathParts.length -1];
                String desc = "" + (mIndex +1) + "/" + mImagePaths.size() + " - " + fileName;
                mDescription.setText(desc);
                
                String infoFileName = currentFile.replace(".jpg", ".txt");

                File infoFile = new File(infoFileName);
                if (infoFile.exists() ) {
                        String caption = getFileContent(infoFile);
                        mCaption.setVisibility(View.VISIBLE);
                        mCaption.setText(caption);

                } else {
                        mCaption.setVisibility(View.INVISIBLE);
                }
        }
        
        String getFileContent(File filename) {
                try {
                        RandomAccessFile raf = new RandomAccessFile(filename, "r");
                        int size = (int)raf.length();
                        byte buf[] = new byte[size];
                        
                        raf.readFully(buf);
                        return new String(buf);                 
                } catch (IOException e) {
                        Log.e(TAG, "Error", e);
                        return "";
                }
        }

        
        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
                MenuItem item = menu.add(Menu.NONE, CONTEXT_VIEWIMG, Menu.NONE, "Built-in viewer");
                item.setIcon( android.R.drawable.ic_menu_gallery);
                return true;
        }


        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
                boolean res;
                
                switch(item.getItemId()) {
                case CONTEXT_VIEWIMG:
                String uri = "file://" + mImagePaths.get(mIndex);
                
                Intent i = new Intent(Intent.ACTION_VIEW);
                i.setDataAndType(Uri.parse(uri), "image/jpeg");
                startActivity(i);
                res = true;
                break;
        default:
                res = super.onOptionsItemSelected(item);
                }
                
                return res;
        }

        class Touch implements View.OnTouchListener {

                Float firstX = null;
                
                
                @Override
                public boolean onTouch(View v, MotionEvent event) {
                        if (event.getAction() == MotionEvent.ACTION_DOWN) {
                                firstX = event.getX();
                        } else {
                                if (firstX != null) {
                                        float x = event.getX();                                 
                                        float diff = firstX - x;                                        
                                        
                                        if (diff > 150) {
                                                int newIndex = Math.min(mIndex+1, mImagePaths.size() -1);                                                                               
                                                loadImage(newIndex);
                                                firstX = null;
                                                return false;
                                        }
                                        
                                        if (diff < -150) {
                                                int newIndex = Math.max(mIndex-1, 0);                                           
                                                loadImage(newIndex);
                                                firstX = null;
                                                return false;
                                        }
                                }       
                        }
                        
                        return true;
                }
                
        }
}
1	package dk.thoerup.side9;
2
3	import java.io.File;
4	import java.io.IOException;
5	import java.io.RandomAccessFile;
6	import java.util.ArrayList;
7
8	import android.app.Activity;
9	import android.content.Intent;
10	import android.graphics.Bitmap;
11	import android.graphics.BitmapFactory;
12	import android.net.Uri;
13	import android.os.Bundle;
14	import android.util.Log;
15	import android.view.Menu;
16	import android.view.MenuItem;
17	import android.view.MotionEvent;
18	import android.view.View;
19	import android.widget.ImageView;
20	import android.widget.TextView;
21
22	public class PictureView extends Activity {
23	final static int CONTEXT_VIEWIMG = 1000;
24
25	final static String TAG = "Side9Pigen";
26
27	TextView mDescription;
28	TextView mCaption;
29	ImageView mImageView;
30	ArrayList<String> mImagePaths;
31	int mIndex;
32
33
34	Bitmap mBitmap;
35
36	@SuppressWarnings("unchecked")
37	@Override
38	public void onCreate(Bundle savedInstanceState) {
39	super.onCreate(savedInstanceState);
40	setContentView(R.layout.pictureview);
41
42	mImagePaths = (ArrayList<String>) getIntent().getSerializableExtra("files");
43	mIndex = getIntent().getIntExtra("index", 0);
44
45
46	mImageView = (ImageView) findViewById(R.id.imageview);
47	mImageView.setOnTouchListener( new Touch() );
48
49	mCaption = (TextView) findViewById(R.id.caption);
50	mDescription = (TextView) findViewById(R.id.description);
51
52
53	loadImage();
54
55	}
56
57
58
59	private void loadImage(int newIndex) {
60	Log.e(TAG, "NewIndex " + newIndex);
61	if (newIndex != mIndex) {
62	mIndex = newIndex;
63	loadImage();
64	}
65	}
66
67	private void loadImage() {
68	String currentFile = mImagePaths.get(mIndex);
69	mBitmap = BitmapFactory.decodeFile( currentFile );
70	mImageView.setImageBitmap(mBitmap);
71
72	String pathParts[] = currentFile.split("/");
73	String fileName = pathParts[ pathParts.length -1];
74	String desc = "" + (mIndex +1) + "/" + mImagePaths.size() + " - " + fileName;
75	mDescription.setText(desc);
76
77	String infoFileName = currentFile.replace(".jpg", ".txt");
78
79	File infoFile = new File(infoFileName);
80	if (infoFile.exists() ) {
81	String caption = getFileContent(infoFile);
82	mCaption.setVisibility(View.VISIBLE);
83	mCaption.setText(caption);
84
85	} else {
86	mCaption.setVisibility(View.INVISIBLE);
87	}
88	}
89
90	String getFileContent(File filename) {
91	try {
92	RandomAccessFile raf = new RandomAccessFile(filename, "r");
93	int size = (int)raf.length();
94	byte buf[] = new byte[size];
95
96	raf.readFully(buf);
97	return new String(buf);
98	} catch (IOException e) {
99	Log.e(TAG, "Error", e);
100	return "";
101	}
102	}
103
104
105
106	@Override
107	public boolean onCreateOptionsMenu(Menu menu) {
108	MenuItem item = menu.add(Menu.NONE, CONTEXT_VIEWIMG, Menu.NONE, "Built-in viewer");
109	item.setIcon( android.R.drawable.ic_menu_gallery);
110	return true;
111	}
112
113
114
115	@Override
116	public boolean onOptionsItemSelected(MenuItem item) {
117	boolean res;
118
119	switch(item.getItemId()) {
120	case CONTEXT_VIEWIMG:
121	String uri = "file://" + mImagePaths.get(mIndex);
122
123	Intent i = new Intent(Intent.ACTION_VIEW);
124	i.setDataAndType(Uri.parse(uri), "image/jpeg");
125	startActivity(i);
126	res = true;
127	break;
128	default:
129	res = super.onOptionsItemSelected(item);
130	}
131
132	return res;
133	}
134
135	class Touch implements View.OnTouchListener {
136
137	Float firstX = null;
138
139
140	@Override
141	public boolean onTouch(View v, MotionEvent event) {
142	if (event.getAction() == MotionEvent.ACTION_DOWN) {
143	firstX = event.getX();
144	} else {
145	if (firstX != null) {
146	float x = event.getX();
147	float diff = firstX - x;
148
149	if (diff > 150) {
150	int newIndex = Math.min(mIndex+1, mImagePaths.size() -1);
151	loadImage(newIndex);
152	firstX = null;
153	return false;
154	}
155
156	if (diff < -150) {
157	int newIndex = Math.max(mIndex-1, 0);
158	loadImage(newIndex);
159	firstX = null;
160	return false;
161	}
162	}
163	}
164
165	return true;
166	}
167
168	}
169	}