Rename the "Media Scanner" DevTool to "Media Provider", and add

functionality to insert random filler data in to the database.

Change-Id: I632c7c8fea8aceca7b71dab88f3b01ed7ae49a92

apps/Development/AndroidManifest.xml

@@ -117,7 +117,7 @@
             </intent-filter>
         </activity>
 
-        <activity android:name="MediaScannerActivity" android:label="Media Scanner">
+        <activity android:name="MediaScannerActivity" android:label="Media Provider">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.TEST" />

apps/Development/res/layout/media_scanner_activity.xml

@@ -17,9 +17,42 @@
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-	android:orientation="horizontal">
+    android:orientation="vertical">
 
-    <TextView android:id="@+id/title" android:textSize="16sp" android:textStyle="bold"
+    <TextView
-        android:layout_width="match_parent" android:layout_height="wrap_content" />
+        android:id="@+id/title"
+        android:textSize="16sp"
+        android:textStyle="bold"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" />
+
+    <Button
+        android:layout_width="160dip"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center_horizontal"
+        android:text="@string/scancard"
+        android:onClick="startScan" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="horizontal"
+        android:layout_marginTop="30dip">
+
+        <EditText
+            android:id="@+id/numsongs"
+            android:layout_width="150dip"
+            android:layout_height="wrap_content"
+            android:hint="@string/numsongs"
+            android:numeric="integer"
+        />
+
+        <Button
+            android:id="@+id/insertbutton"
+            android:layout_width="150dip"
+            android:layout_height="wrap_content"
+            android:onClick="insertItems" />
+
+    </LinearLayout>
 
 </LinearLayout>

apps/Development/res/values/strings.xml

@@ -208,4 +208,9 @@
     <string name="bad_behavior_anr_service_label">ANR starting a Service</string>
     <string name="bad_behavior_anr_system_label">System ANR (in ActivityManager)</string>
     <string name="bad_behavior_wedge_system_label">Wedge system (5 minute system ANR)</string>
+
+    <!-- MediaScannerActivity -->
+    <string name="scancard">Scan SD card</string>
+    <string name="numsongs"># of albums</string>
+    <string name="insertbutton">Insert %1s albums</string>
 </resources>

apps/Development/src/com/android/development/MediaScannerActivity.java

@@ -17,23 +17,50 @@
 package com.android.development;
 
 import android.app.Activity;
+import android.content.ContentResolver;
+import android.content.ContentValues;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.BroadcastReceiver;
+import android.database.sqlite.SQLiteConstraintException;
 import android.net.Uri;
+import android.os.Bundle;
 import android.os.Environment;
+import android.os.Handler;
+import android.os.Message;
+import android.provider.MediaStore;
+import android.provider.MediaStore.Audio;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
 import android.widget.TextView;
 
+import java.util.Random;
+
 public class MediaScannerActivity extends Activity
 {
+    private TextView mTitle;
+    private int mNumToInsert = 20;
+    private int mArtists;
+    private int mAlbums;
+    private int mSongs;
+    private ContentResolver mResolver;
+    private Uri mAudioUri;
+    ContentValues mValues[] = new ContentValues[10];
+    Random mRandom = new Random();
+    StringBuilder mBuilder = new StringBuilder();
+
     public MediaScannerActivity() {
     }
 
     /** Called when the activity is first created or resumed. */
     @Override
-    public void onResume() {
+    public void onCreate(Bundle icicle) {
-        super.onResume();
+        super.onCreate(icicle);
 
         setContentView(R.layout.media_scanner_activity);
 
@@ -42,18 +69,42 @@ public class MediaScannerActivity extends Activity
         intentFilter.addDataScheme("file");
         registerReceiver(mReceiver, intentFilter);
 
-        sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://"
+        EditText t = (EditText) findViewById(R.id.numsongs);
-                + Environment.getExternalStorageDirectory())));
+        t.addTextChangedListener(new TextWatcher() {
 
+            public void afterTextChanged(Editable s) {
+                String text = s.toString();
+                try {
+                    mNumToInsert = Integer.valueOf(text);
+                } catch (NumberFormatException ex) {
+                    mNumToInsert = 20;
+                }
+                setInsertButtonText();
+            }
+
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+            }
+
+            public void onTextChanged(CharSequence s, int start, int before, int count) {
+            }
+
+        });
         mTitle = (TextView) findViewById(R.id.title);
-        mTitle.setText("Sent ACTION_MEDIA_MOUNTED to trigger the Media Scanner.");
+        mResolver = getContentResolver();
+        mAudioUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
+
+        for (int i = 0; i < 10; i++) {
+            mValues[i] = new ContentValues();
+        }
+        setInsertButtonText();
     }
 
     /** Called when the activity going into the background or being destroyed. */
     @Override
-    public void onPause() {
+    public void onDestroy() {
-        super.onPause();
         unregisterReceiver(mReceiver);
+        mInsertHandler.removeMessages(0);
+        super.onDestroy();
     }
 
     private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
@@ -68,5 +119,137 @@ public class MediaScannerActivity extends Activity
         }
     };
 
-    private TextView mTitle;
+    public void startScan(View v) {
+        sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://"
+                + Environment.getExternalStorageDirectory())));
+
+        mTitle.setText("Sent ACTION_MEDIA_MOUNTED to trigger the Media Scanner.");
+    }
+
+    private void setInsertButtonText() {
+        String label = getString(R.string.insertbutton, Integer.valueOf(mNumToInsert));
+        Button b = (Button) findViewById(R.id.insertbutton);
+        b.setText(label);
+    }
+
+
+    public void insertItems(View v) {
+        if (mInsertHandler.hasMessages(0)) {
+            mInsertHandler.removeMessages(0);
+            setInsertButtonText();
+        } else {
+            mInsertHandler.sendEmptyMessage(0);
+        }
+    }
+
+    Handler mInsertHandler = new Handler() {
+        @Override
+        public void handleMessage(Message msg) {
+
+            if (mNumToInsert-- > 0) {
+                addAlbum();
+                runOnUiThread(mDisplayUpdater);
+
+                if (!isFinishing()) {
+                    sendEmptyMessage(0);
+                }
+            }
+        }
+    };
+
+    Runnable mDisplayUpdater = new Runnable() {
+        public void run() {
+            mTitle.setText("Added " + mArtists + " artists, " + mAlbums + " albums, "
+                    + mSongs + " songs.");
+        }
+    };
+
+    // Add one more album (with 10 songs) to the database. This will be a compilation album,
+    // with one album artist for the album, and a separate artist for each song.
+    private void addAlbum() {
+        try {
+            String albumArtist = "Various Artists";
+            String albumName = getRandomWord(3);
+            int baseYear = 1969 + mRandom.nextInt(30);
+            for (int i = 0; i < 10; i++) {
+                mValues[i].clear();
+                String artist = getRandomName();
+                final ContentValues map = mValues[i];
+                map.put(MediaStore.MediaColumns.DATA,
+                        "http://bogus/" + albumName + "/" + artist + "_" + i);
+                map.put(MediaStore.MediaColumns.TITLE,
+                        getRandomWord(4) + " " + getRandomWord(2) + " " + (i + 1));
+                map.put(MediaStore.MediaColumns.MIME_TYPE, "audio/mp3");
+
+                map.put(Audio.Media.ARTIST, artist);
+                map.put("album_artist", albumArtist);
+                map.put(Audio.Media.ALBUM, albumName);
+                map.put(Audio.Media.TRACK, i + 1);
+                map.put(Audio.Media.DURATION, 4*60*1000);
+                map.put(Audio.Media.IS_MUSIC, 1);
+                map.put(Audio.Media.YEAR, baseYear + mRandom.nextInt(10));
+            }
+            mResolver.bulkInsert(mAudioUri, mValues);
+            mSongs += 10;
+            mAlbums++;
+            mArtists += 11;
+        } catch (SQLiteConstraintException ex) {
+            Log.d("@@@@", "insert failed", ex);
+        }
+    }
+
+    /**
+     * Some code to generate random names. This just strings together random
+     * syllables, and randomly inserts a modifier between the first
+     * and last name.
+     */
+    private String[] elements = new String[] {
+            "ab", "am",
+            "bra", "bri",
+            "ci", "co",
+            "de", "di", "do",
+            "fa", "fi",
+            "ki",
+            "la", "li",
+            "ma", "me", "mi", "mo",
+            "na", "ni",
+            "pa",
+            "ta", "ti",
+            "vi", "vo"
+    };
+
+    private String getRandomWord(int len) {
+        int max = elements.length;
+        mBuilder.setLength(0);
+        for (int i = 0; i < len; i++) {
+            mBuilder.append(elements[mRandom.nextInt(max)]);
+        }
+        char c = mBuilder.charAt(0);
+        c = Character.toUpperCase(c);
+        mBuilder.setCharAt(0, c);
+        return mBuilder.toString();
+    }
+
+    private String getRandomName() {
+        boolean longfirst = mRandom.nextInt(5) < 3;
+        String first = getRandomWord(longfirst ? 3 : 2);
+        String last = getRandomWord(3);
+        switch (mRandom.nextInt(6)) {
+            case 1:
+                if (!last.startsWith("Di")) {
+                    last = "di " + last;
+                }
+                break;
+            case 2:
+                last = "van " + last;
+                break;
+            case 3:
+                last = "de " + last;
+                break;
+        }
+        return first + " " + last;
+    }
+
+
+
 }