Use Material Design Icons on API 21+

art/render.rb

@@ -4,6 +4,7 @@ resolutions={
 	'hdpi' => 1.5,
 	'xhdpi' => 2,
 	'xxhdpi' => 3,
+	'xxxhdpi' => 4,
 	}
 images = {
 	'conversations_baloon.svg' => ['ic_launcher', 48],

src/main/java/eu/siacs/conversations/services/NotificationService.java

@@ -270,7 +270,8 @@ public class NotificationService {
 			}
 			if ((message = getFirstDownloadableMessage(messages)) != null) {
 				mBuilder.addAction(
-						R.drawable.ic_action_download,
+						Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP ?
+								R.drawable.ic_file_download_white_24dp : R.drawable.ic_action_download,
 						mXmppConnectionService.getResources().getString(R.string.download_x_file,
 							UIHelper.getFileDescriptionString(mXmppConnectionService, message)),
 						createDownloadIntent(message)
@@ -446,18 +447,24 @@ public class NotificationService {
 
 	public Notification createForegroundNotification() {
 		final NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(mXmppConnectionService);
-		mBuilder.setSmallIcon(R.drawable.ic_stat_communication_import_export);
+
 		mBuilder.setContentTitle(mXmppConnectionService.getString(R.string.conversations_foreground_service));
 		mBuilder.setContentText(mXmppConnectionService.getString(R.string.touch_to_open_conversations));
-		mBuilder.addAction(R.drawable.ic_action_cancel,
-				mXmppConnectionService.getString(R.string.disable_foreground_service),
-				createDisableForeground());
 		mBuilder.setContentIntent(createOpenConversationsIntent());
 		mBuilder.setWhen(0);
 		mBuilder.setPriority(NotificationCompat.PRIORITY_MIN);
+		final int cancelIcon;
 		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
 			mBuilder.setCategory(Notification.CATEGORY_SERVICE);
+			mBuilder.setSmallIcon(R.drawable.ic_import_export_white_48dp);
+			cancelIcon = R.drawable.ic_cancel_white_24dp;
+		} else {
+			mBuilder.setSmallIcon(R.drawable.ic_stat_communication_import_export);
+			cancelIcon = R.drawable.ic_action_cancel;
 		}
+		mBuilder.addAction(cancelIcon,
+				mXmppConnectionService.getString(R.string.disable_foreground_service),
+				createDisableForeground());
 		setNotificationColor(mBuilder);
 		return mBuilder.build();
 	}
@@ -487,7 +494,11 @@ public class NotificationService {
 		}
 		mBuilder.setOngoing(true);
 		//mBuilder.setLights(0xffffffff, 2000, 4000);
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+			mBuilder.setSmallIcon(R.drawable.ic_warning_white_36dp);
+		} else {
 			mBuilder.setSmallIcon(R.drawable.ic_stat_alert_warning);
+		}
 		final TaskStackBuilder stackBuilder = TaskStackBuilder.create(mXmppConnectionService);
 		stackBuilder.addParentStack(ConversationActivity.class);
 

src/main/java/eu/siacs/conversations/ui/ConversationActivity.java

@@ -10,6 +10,7 @@ import android.content.DialogInterface.OnClickListener;
 import android.content.Intent;
 import android.content.IntentSender.SendIntentException;
 import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.SystemClock;
 import android.provider.MediaStore;
@@ -296,8 +297,12 @@ public class ConversationActivity extends XmppActivity
 			if (this.getSelectedConversation() != null) {
 				if (this.getSelectedConversation().getLatestMessage()
 						.getEncryption() != Message.ENCRYPTION_NONE) {
+					if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+						menuSecure.setIcon(R.drawable.ic_lock_outline_white_48dp);
+					} else {
 						menuSecure.setIcon(R.drawable.ic_action_secure);
 					}
+				}
 				if (this.getSelectedConversation().getMode() == Conversation.MODE_MULTI) {
 					menuContactDetails.setVisible(false);
 					menuAttach.setVisible(false);