thoerup/side9/PictureView.java

package dk.thoerup.side9;


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<ImageEntry> mImages;
        int mIndex;
        
        
        Bitmap mBitmap;
        
        @SuppressWarnings("unchecked")
        @Override
        public void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.pictureview);
                
                mImages = (ArrayList<ImageEntry>) getIntent().getSerializableExtra("images");
                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() {
                ImageEntry currentImage = mImages.get(mIndex);
                mBitmap = BitmapFactory.decodeFile( currentImage.path );
                mImageView.setImageBitmap(mBitmap);             
                                                
                
                if (currentImage.caption.length() > 0) {                        
                        mCaption.setVisibility(View.VISIBLE);
                        mCaption.setText(currentImage.caption);
                } else {
                        mCaption.setVisibility(View.INVISIBLE);
                }

                String pathParts[] = currentImage.path.split("/");
                String fileName = pathParts[ pathParts.length -1];
                String desc = "" + (mIndex +1) + "/" + mImages.size() + " - " + fileName;
                mDescription.setText(desc);             
        }
        

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