Add button in preferences to rescan library

project.properties

@@ -10,5 +10,5 @@
 # Indicates whether an apk should be generated for each density.
 split.density=false
 # Project target.
-target=android-14
+target=android-15
 proguard.config=proguard.config

res/values/translatable.xml

@@ -174,6 +174,11 @@ THE SOFTWARE.
 	<string name="stock_broadcast_title">Emulate Stock Broadcasts</string>
 	<string name="stock_broadcast_summary">Send broadcasts emulating those sent by the stock music player to work with 3rd party lockscreen controls, widgets, etc.</string>
 
+	<string name="media_scan">Refresh Library</string>
+	<string name="click_to_scan">Click to scan external storage for music</string>
+	<string name="scan_in_progress">Scan in progress…</string>
+	<string name="finished_scanning">Finished scanning. Click to scan again.</string>
+
 	<!-- The following are for the list preferences -->
 	<string name="last_used_action">Last used action</string>
 

res/xml/preferences.xml

@@ -158,5 +158,6 @@ THE SOFTWARE.
 			android:title="@string/stock_broadcast_title"
 			android:summary="@string/stock_broadcast_summary"
 			android:defaultValue="false" />
+		<org.kreed.vanilla.ScanPreference />
 	</PreferenceCategory>
 </PreferenceScreen>

src/org/kreed/vanilla/ScanPreference.java

@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2012 Christopher Eby <kreed@kreed.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package org.kreed.vanilla;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.net.Uri;
+import android.os.Environment;
+import android.preference.Preference;
+import android.util.AttributeSet;
+
+/**
+ * A preference that allows the MediaScanner to be triggered.
+ */
+public class ScanPreference extends Preference {
+	private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
+		@Override
+		public void onReceive(Context context, Intent intent) {
+			android.util.Log.i("VanillaMusic", "receive: " + intent);
+			String action = intent.getAction();
+			if (action.equals(Intent.ACTION_MEDIA_SCANNER_STARTED)) {
+				setSummary(R.string.scan_in_progress);
+				setEnabled(false);
+			} else if (intent.getAction().equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) {
+				setSummary(R.string.finished_scanning);
+				setEnabled(true);
+			}
+		}
+	};
+
+	public ScanPreference(Context context, AttributeSet attrs)
+	{
+		super(context, attrs);
+		setTitle(R.string.media_scan);
+		setSummary(R.string.click_to_scan);
+
+		IntentFilter intentFilter = new IntentFilter();
+		intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED);
+		intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED);
+		intentFilter.addDataScheme("file");
+		context.registerReceiver(mReceiver, intentFilter);
+	}
+
+	@Override
+	public void onClick()
+	{
+		Uri storage = Uri.parse("file://" + Environment.getExternalStorageDirectory());
+		getContext().sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, storage));
+	}
+}