Resume voicemail playback at previous position on resume.

Make sure that the position is saved when navigating away from the
voicemail playback so that it can be restored when resuming. Also:
- Disable seekbar when not loaded
- Gray out seekbar handle when seek is disabled

Bug: 23566924

Change-Id: Ic9d84425d7a3cde9d212bd758eb518577161d7ec

1 files changed, 16 insertions, 3 deletions

diff --git a/src/com/android/dialer/voicemail/VoicemailPlaybackLayout.java b/src/com/android/dialer/voicemail/VoicemailPlaybackLayout.java
index 698530b69..e0f2a9891 100644
--- a/src/com/android/dialer/voicemail/VoicemailPlaybackLayout.java
+++ b/src/com/android/dialer/voicemail/VoicemailPlaybackLayout.java
@@ -19,6 +19,7 @@ package com.android.dialer.voicemail;
 import android.app.Activity;
 import android.app.Fragment;
 import android.content.Context;
+import android.graphics.drawable.Drawable;
 import android.media.MediaPlayer;
 import android.net.Uri;
 import android.os.Bundle;
@@ -238,6 +239,8 @@ public class VoicemailPlaybackLayout extends LinearLayout
     private TextView mTotalDurationText;
 
     private PositionUpdater mPositionUpdater;
+    private Drawable mVoicemailSeekHandleEnabled;
+    private Drawable mVoicemailSeekHandleDisabled;
 
     public VoicemailPlaybackLayout(Context context) {
         this(context, null);
@@ -277,6 +280,11 @@ public class VoicemailPlaybackLayout extends LinearLayout
 
         mPositionText.setText(formatAsMinutesAndSeconds(0));
         mTotalDurationText.setText(formatAsMinutesAndSeconds(0));
+
+        mVoicemailSeekHandleEnabled = getResources().getDrawable(
+                R.drawable.ic_voicemail_seek_handle, mContext.getTheme());
+        mVoicemailSeekHandleDisabled = getResources().getDrawable(
+                R.drawable.ic_voicemail_seek_handle_disabled, mContext.getTheme());
     }
 
     @Override
@@ -364,17 +372,22 @@ public class VoicemailPlaybackLayout extends LinearLayout
     @Override
     public void disableUiElements() {
         mStartStopButton.setEnabled(false);
-        mPlaybackSeek.setProgress(0);
         mPlaybackSeek.setEnabled(false);
+        mPlaybackSeek.setThumb(mVoicemailSeekHandleDisabled);
     }
 
     @Override
     public void enableUiElements() {
         mStartStopButton.setEnabled(true);
         mPlaybackSeek.setEnabled(true);
+        mPlaybackSeek.setThumb(mVoicemailSeekHandleEnabled);
+    }
 
-        mPositionText.setVisibility(View.VISIBLE);
-        mTotalDurationText.setVisibility(View.VISIBLE);
+    @Override
+    public void resetSeekBar() {
+        mPlaybackSeek.setProgress(0);
+        mPlaybackSeek.setEnabled(false);
+        mPlaybackSeek.setThumb(mVoicemailSeekHandleDisabled);
     }
 
     @Override