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.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;
        
        
    /** 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();
        
        
    }
    
    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) {
                                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;
                                
                                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.View;
20	import android.view.View.OnClickListener;
21	import android.widget.Button;
22	import android.widget.ProgressBar;
23	import android.widget.Spinner;
24	import android.widget.TextView;
25
26	public class RescanMain extends Activity {
27	final static String TAG = "RescanSdcard";
28
29
30	Button scanBtn;
31	TextView totalTv;
32	TextView processedTv;
33	Spinner targetSpinner;
34
35	ProgressBar progress;
36
37	MediaScannerConnection scan;
38
39	int total = 0;
40
41	int processed = 0;
42
43
44	/** Called when the activity is first created. */
45	@Override
46	public void onCreate(Bundle savedInstanceState) {
47	super.onCreate(savedInstanceState);
48	Log.i(TAG, "onCreate");
49
50	setContentView(R.layout.main);
51	scanBtn = (Button) findViewById(R.id.scan);
52	scanBtn.setOnClickListener( new ScanListener() );
53
54	totalTv = (TextView) findViewById(R.id.total);
55	processedTv = (TextView) findViewById(R.id.processed);
56
57	targetSpinner = (Spinner) findViewById(R.id.target);
58	progress = (ProgressBar) findViewById(R.id.progress);
59
60
61	checkSdCard();
62
63
64	}
65
66	void populateSpinner() {
67
68	}
69
70	boolean checkSdCard() {
71	//check whether sdcard is mounted
72	if ( ! Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED) ) {
73	AlertDialog.Builder b = new AlertDialog.Builder(this);
74
75	b.setMessage("SD-card is not currently mounted");
76	b.setPositiveButton("ok", new DialogInterface.OnClickListener() {
77	@Override
78	public void onClick(DialogInterface dialog, int which) {
79	RescanMain.this.finish();
80	}
81	});
82	b.show();
83	return false;
84	} else {
85	return true;
86	}
87	}
88
89
90	Handler updateHandler = new Handler() {
91	@Override
92	public void handleMessage(Message msg) {
93	super.handleMessage(msg);
94
95	totalTv.setText("" + total);
96	processedTv.setText("" + processed);
97
98	progress.setMax(total);
99	progress.setProgress(processed);
100
101	if (processed == total) {
102	scanBtn.setEnabled(true);
103	targetSpinner.setEnabled(true);
104	} else {
105	updateHandler.sendEmptyMessageDelayed(0, 500);
106	}
107	}
108	};
109
110
111	void findFilesRecursive(String path, List<String> files) {
112	Log.i(TAG, "scanRecursive " + path);
113
114	File dir = new File(path);
115
116	String entries[] = dir.list();
117
118	File nomedia = new File(dir.getPath() + "/.nomedia" );
119	if (nomedia.exists()) {
120	Log.e(TAG, nomedia.getPath() + " exists, ignoring folder");
121	return;
122	}
123
124
125	for (String entry : entries) {
126
127	if (entry.charAt(0) == '.') {
128	Log.e(TAG, "ignore " + entry);
129	continue;
130	}
131
132	File current = new File(dir.getPath() + "/" + entry);
133	//Log.v(TAG, current.getPath());
134
135
136	if (current.isDirectory()) {
137	findFilesRecursive(current.getPath(), files);
138	} else {
139	files.add(current.getPath());
140	}
141	}
142	}
143
144	class FileEnqueuer extends AsyncTask<Void, Void, Void> {
145
146	@Override
147	protected Void doInBackground(Void... arg0) {
148
149	List<String> files = new ArrayList<String>();
150
151	findFilesRecursive(Environment.getExternalStorageDirectory().getPath(), files);
152
153	total = files.size();
154	updateHandler.sendEmptyMessage(0);
155
156	for (String f : files) {
157	scan.scanFile(f, null);
158	}
159
160	scan.disconnect();
161	scan = null;
162
163	files.clear();
164
165	return null;
166	}
167
168	}
169
170
171	class ScanListener implements OnClickListener {
172	@Override
173	public void onClick(View arg0) {
174	if (checkSdCard() == true) {
175	total = 0;
176	processed = 0;
177
178	scan = new MediaScannerConnection(RescanMain.this, new ScannerClient() );
179	scan.connect();
180
181	scanBtn.setEnabled(false);
182	targetSpinner.setEnabled(false);
183	}
184	}
185	}
186
187	class ScannerClient implements MediaScannerConnectionClient {
188
189	@Override
190	public void onMediaScannerConnected() {
191	Log.i(TAG, "scannerConnected");
192
193	new FileEnqueuer().execute();
194	}
195
196	@Override
197	public void onScanCompleted(String path, Uri uri) {
198	//Log.v(TAG, "scanCompleted " + path + " " + uri);
199	processed++;
200	}
201	}
202	}