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	torben	925	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	torben	926	import android.content.Intent;
10	torben	925	import android.graphics.Bitmap;
11			import android.graphics.BitmapFactory;
12	torben	926	import android.net.Uri;
13	torben	925	import android.os.Bundle;
14			import android.util.Log;
15	torben	926	import android.view.Menu;
16			import android.view.MenuItem;
17	torben	925	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	torben	926	final static int CONTEXT_VIEWIMG = 1000;
24	torben	925
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	torben	926
49			mCaption = (TextView) findViewById(R.id.caption);
50	torben	925	mDescription = (TextView) findViewById(R.id.description);
51
52	torben	926
53	torben	925	loadImage();
54
55			}
56
57	torben	926
58
59	torben	925	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	torben	926
104	torben	925
105	torben	926
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	torben	925	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			}