thoerup/rescansdcard/RescanMain.java

package dk.thoerup.rescansdcard;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.media.MediaScannerConnection;
import android.media.MediaScannerConnection.MediaScannerConnectionClient;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.Spinner;
import android.widget.TextView;

public class RescanMain extends Activity {
        final static String TAG = "RescanSdcard";
        
        
        Button scanBtn;
        TextView totalTv;
        TextView processedTv;
        Spinner targetSpinner;
        
        ProgressBar progress;
        
        MediaScannerConnection scan;
        
        int total = 0;
        
        int processed = 0;
        
        boolean isScanning = false;
        
        
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Log.i(TAG, "onCreate");

        setContentView(R.layout.main);
        scanBtn = (Button) findViewById(R.id.scan);
        scanBtn.setOnClickListener( new ScanListener() );
        
        totalTv = (TextView) findViewById(R.id.total);
        processedTv = (TextView) findViewById(R.id.processed);
        
        targetSpinner = (Spinner) findViewById(R.id.target);
        progress = (ProgressBar) findViewById(R.id.progress);
    
        
        checkSdCard();
        
        
    }
    
    
    @Override
        public boolean onKeyDown(int keyCode, KeyEvent event) {
                if (keyCode == KeyEvent.KEYCODE_BACK) {
                        if (isScanning == true) { //scanning scanning
                                return true; //do nothing and claim event to be handled
                        }
                }
                
                return super.onKeyDown(keyCode, event);
        }


        void populateSpinner() {
        
    }

    boolean checkSdCard() {
                //check whether sdcard is mounted
                if ( ! Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED) ) {
                        AlertDialog.Builder b = new AlertDialog.Builder(this);
                        
                        b.setMessage("SD-card is not currently mounted");
                        b.setPositiveButton("ok", new DialogInterface.OnClickListener() {
                                @Override
                                public void onClick(DialogInterface dialog, int which) {
                                        RescanMain.this.finish();
                                }
                        });
                        b.show();
                        return false;
                } else {                        
                        return true;
                }
    }


        Handler updateHandler = new Handler() {
        @Override
        public void handleMessage(Message  msg) {
                super.handleMessage(msg);               
                
                totalTv.setText("" + total);
                processedTv.setText("" + processed);
                
                progress.setMax(total);
                progress.setProgress(processed);                
                
                        if (processed == total) {
                                isScanning = false;
                                scanBtn.setEnabled(true);
                                targetSpinner.setEnabled(true);
                        } else {
                                updateHandler.sendEmptyMessageDelayed(0, 500);
                        }
        }
    };
    
   
    void findFilesRecursive(String path, List<String> files) {
        Log.i(TAG, "scanRecursive " + path);
        
        File dir = new File(path);
        
        String entries[] = dir.list();
        
        File nomedia = new File(dir.getPath() + "/.nomedia" );
        if (nomedia.exists()) {
                Log.e(TAG, nomedia.getPath() + " exists, ignoring folder");
                return;
        }
        
        
        for (String entry : entries) {
                
                if (entry.charAt(0) == '.') {
                        Log.e(TAG, "ignore " + entry);
                        continue;
                }                               
                
                File current = new File(dir.getPath() + "/" + entry);                   
                //Log.v(TAG, current.getPath());
                
                
                if (current.isDirectory()) {
                        findFilesRecursive(current.getPath(), files);
                } else {
                        files.add(current.getPath());
                }
        }
    }
    
    class FileEnqueuer extends AsyncTask<Void, Void, Void> {

                @Override
                protected Void doInBackground(Void... arg0) {
                        
                        List<String> files = new ArrayList<String>();
                        
                        findFilesRecursive(Environment.getExternalStorageDirectory().getPath(), files);                 
                        
                        total = files.size();
                        updateHandler.sendEmptyMessage(0);
                        
                        for (String f : files) {
                                scan.scanFile(f, null);
                        }
                        
                        scan.disconnect();
                        scan = null;
                        
                        files.clear();
                        
                        return null;
                }
        
    }
    
    
    class ScanListener implements OnClickListener {
                @Override
                public void onClick(View arg0) {                        
                        if (checkSdCard() == true) {
                                total = 0;
                                processed = 0;
                                isScanning = true;
                                
                                scan = new MediaScannerConnection(RescanMain.this, new ScannerClient() );
                                scan.connect();
                                
                                scanBtn.setEnabled(false);
                                targetSpinner.setEnabled(false);
                        }
                }
    }    
    
        class ScannerClient implements MediaScannerConnectionClient {

                @Override
                public void onMediaScannerConnected() {
                        Log.i(TAG, "scannerConnected");
        
                        new FileEnqueuer().execute();
                }

                @Override
                public void onScanCompleted(String path, Uri uri) {
                        //Log.v(TAG, "scanCompleted " + path + "  " + uri);
                        processed++;
                }
        }
}
1	package dk.thoerup.rescansdcard;
2
3	import java.io.File;
4	import java.util.ArrayList;
5	import java.util.List;
6
7	import android.app.Activity;
8	import android.app.AlertDialog;
9	import android.content.DialogInterface;
10	import android.media.MediaScannerConnection;
11	import android.media.MediaScannerConnection.MediaScannerConnectionClient;
12	import android.net.Uri;
13	import android.os.AsyncTask;
14	import android.os.Bundle;
15	import android.os.Environment;
16	import android.os.Handler;
17	import android.os.Message;
18	import android.util.Log;
19	import android.view.KeyEvent;
20	import android.view.View;
21	import android.view.View.OnClickListener;
22	import android.widget.Button;
23	import android.widget.ProgressBar;
24	import android.widget.Spinner;
25	import android.widget.TextView;
26
27	public class RescanMain extends Activity {
28	final static String TAG = "RescanSdcard";
29
30
31	Button scanBtn;
32	TextView totalTv;
33	TextView processedTv;
34	Spinner targetSpinner;
35
36	ProgressBar progress;
37
38	MediaScannerConnection scan;
39
40	int total = 0;
41
42	int processed = 0;
43
44	boolean isScanning = false;
45
46
47	/** Called when the activity is first created. */
48	@Override
49	public void onCreate(Bundle savedInstanceState) {
50	super.onCreate(savedInstanceState);
51	Log.i(TAG, "onCreate");
52
53	setContentView(R.layout.main);
54	scanBtn = (Button) findViewById(R.id.scan);
55	scanBtn.setOnClickListener( new ScanListener() );
56
57	totalTv = (TextView) findViewById(R.id.total);
58	processedTv = (TextView) findViewById(R.id.processed);
59
60	targetSpinner = (Spinner) findViewById(R.id.target);
61	progress = (ProgressBar) findViewById(R.id.progress);
62
63
64	checkSdCard();
65
66
67	}
68
69
70
71	@Override
72	public boolean onKeyDown(int keyCode, KeyEvent event) {
73	if (keyCode == KeyEvent.KEYCODE_BACK) {
74	if (isScanning == true) { //scanning scanning
75	return true; //do nothing and claim event to be handled
76	}
77	}
78
79	return super.onKeyDown(keyCode, event);
80	}
81
82
83
84	void populateSpinner() {
85
86	}
87
88	boolean checkSdCard() {
89	//check whether sdcard is mounted
90	if ( ! Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED) ) {
91	AlertDialog.Builder b = new AlertDialog.Builder(this);
92
93	b.setMessage("SD-card is not currently mounted");
94	b.setPositiveButton("ok", new DialogInterface.OnClickListener() {
95	@Override
96	public void onClick(DialogInterface dialog, int which) {
97	RescanMain.this.finish();
98	}
99	});
100	b.show();
101	return false;
102	} else {
103	return true;
104	}
105	}
106
107
108	Handler updateHandler = new Handler() {
109	@Override
110	public void handleMessage(Message msg) {
111	super.handleMessage(msg);
112
113	totalTv.setText("" + total);
114	processedTv.setText("" + processed);
115
116	progress.setMax(total);
117	progress.setProgress(processed);
118
119	if (processed == total) {
120	isScanning = false;
121	scanBtn.setEnabled(true);
122	targetSpinner.setEnabled(true);
123	} else {
124	updateHandler.sendEmptyMessageDelayed(0, 500);
125	}
126	}
127	};
128
129
130	void findFilesRecursive(String path, List<String> files) {
131	Log.i(TAG, "scanRecursive " + path);
132
133	File dir = new File(path);
134
135	String entries[] = dir.list();
136
137	File nomedia = new File(dir.getPath() + "/.nomedia" );
138	if (nomedia.exists()) {
139	Log.e(TAG, nomedia.getPath() + " exists, ignoring folder");
140	return;
141	}
142
143
144	for (String entry : entries) {
145
146	if (entry.charAt(0) == '.') {
147	Log.e(TAG, "ignore " + entry);
148	continue;
149	}
150
151	File current = new File(dir.getPath() + "/" + entry);
152	//Log.v(TAG, current.getPath());
153
154
155	if (current.isDirectory()) {
156	findFilesRecursive(current.getPath(), files);
157	} else {
158	files.add(current.getPath());
159	}
160	}
161	}
162
163	class FileEnqueuer extends AsyncTask<Void, Void, Void> {
164
165	@Override
166	protected Void doInBackground(Void... arg0) {
167
168	List<String> files = new ArrayList<String>();
169
170	findFilesRecursive(Environment.getExternalStorageDirectory().getPath(), files);
171
172	total = files.size();
173	updateHandler.sendEmptyMessage(0);
174
175	for (String f : files) {
176	scan.scanFile(f, null);
177	}
178
179	scan.disconnect();
180	scan = null;
181
182	files.clear();
183
184	return null;
185	}
186
187	}
188
189
190	class ScanListener implements OnClickListener {
191	@Override
192	public void onClick(View arg0) {
193	if (checkSdCard() == true) {
194	total = 0;
195	processed = 0;
196	isScanning = true;
197
198	scan = new MediaScannerConnection(RescanMain.this, new ScannerClient() );
199	scan.connect();
200
201	scanBtn.setEnabled(false);
202	targetSpinner.setEnabled(false);
203	}
204	}
205	}
206
207	class ScannerClient implements MediaScannerConnectionClient {
208
209	@Override
210	public void onMediaScannerConnected() {
211	Log.i(TAG, "scannerConnected");
212
213	new FileEnqueuer().execute();
214	}
215
216	@Override
217	public void onScanCompleted(String path, Uri uri) {
218	//Log.v(TAG, "scanCompleted " + path + " " + uri);
219	processed++;
220	}
221	}
222	}