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Modify the message overlay on the UI thread as is required

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This commit is contained in:
Christopher Eby 2010-05-23 21:48:16 -05:00
parent 56d7e7b24e
commit 5c470d270b
1 changed files with 87 additions and 41 deletions
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128
src/org/kreed/vanilla/FullPlaybackActivity.java
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@ -38,6 +38,12 @@ import android.widget.SeekBar;
import android.widget.TextView;
public class FullPlaybackActivity extends PlaybackActivity implements SeekBar.OnSeekBarChangeListener {
/**
* A Handler running on the UI thread, in contrast with mHandler which runs
* on a worker thread.
*/
private Handler mUiHandler;
private RelativeLayout mMessageOverlay;
private View mControlsTop;
private View mControlsBottom;
@ -56,6 +62,8 @@ public class FullPlaybackActivity extends PlaybackActivity implements SeekBar.On
setContentView(R.layout.full_playback);
mUiHandler = new Handler(this);
mCoverView = (CoverView)findViewById(R.id.cover_view);
mCoverView.mHandler = mHandler;
mCoverView.setOnClickListener(this);
@ -94,39 +102,60 @@ public class FullPlaybackActivity extends PlaybackActivity implements SeekBar.On
mPaused = true;
}
/**
* Show the message view overlay, creating it if necessary and clearing
* it of all content.
*/
void showMessageOverlay()
{
if (mMessageOverlay == null) {
mMessageOverlay = new RelativeLayout(this);
mMessageOverlay.setBackgroundColor(Color.BLACK);
addContentView(mMessageOverlay,
new ViewGroup.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT,
LinearLayout.LayoutParams.FILL_PARENT));
} else {
mMessageOverlay.setVisibility(View.VISIBLE);
mMessageOverlay.removeAllViews();
}
}
/**
* Hide the message overlay, if it exists.
*/
void hideMessageOverlay()
{
if (mMessageOverlay != null)
mMessageOverlay.setVisibility(View.GONE);
}
/**
* Show the no media message in the message overlay. The message overlay
* must have been created with showMessageOverlay before this method is
* called.
*/
void setNoMediaOverlayMessage()
{
RelativeLayout.LayoutParams layoutParams =
new RelativeLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT);
TextView text = new TextView(this);
text.setText(R.string.no_songs);
text.setLayoutParams(layoutParams);
mMessageOverlay.addView(text);
}
@Override
protected void setState(int state)
{
if (state == mState)
return;
if ((mState & PlaybackService.FLAG_NO_MEDIA) == 0 && (state & PlaybackService.FLAG_NO_MEDIA) != 0)
mUiHandler.sendEmptyMessage(MSG_SHOW_NO_MEDIA);
else if ((mState & PlaybackService.FLAG_NO_MEDIA) != 0 && (state & PlaybackService.FLAG_NO_MEDIA) == 0)
mUiHandler.sendEmptyMessage(MSG_HIDE_MESSAGE_OVERLAY);
super.setState(state);
if (mMessageOverlay != null)
mMessageOverlay.setVisibility(View.GONE);
if ((mState & PlaybackService.FLAG_NO_MEDIA) != 0) {
if (mMessageOverlay == null) {
mMessageOverlay = new RelativeLayout(this);
mMessageOverlay.setBackgroundColor(Color.BLACK);
addContentView(mMessageOverlay,
new ViewGroup.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT,
LinearLayout.LayoutParams.FILL_PARENT));
} else {
mMessageOverlay.setVisibility(View.VISIBLE);
mMessageOverlay.removeAllViews();
}
RelativeLayout.LayoutParams layoutParams =
new RelativeLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT);
TextView text = new TextView(this);
text.setText(R.string.no_songs);
text.setLayoutParams(layoutParams);
mMessageOverlay.addView(text);
}
}
@Override
@ -250,8 +279,25 @@ public class FullPlaybackActivity extends PlaybackActivity implements SeekBar.On
}
}
/**
* Update the seekbar progress with the current song progress. This must be
* called on the UI Handler.
*/
private static final int MSG_UPDATE_PROGRESS = 10;
/**
* Save the currently set CoverView display mode.
*
* @see CoverView#mSeparateInfo
*/
private static final int MSG_SAVE_DISPLAY_MODE = 11;
/**
* The the no media overlay message. This must be called on the UI Handler.
*/
private static final int MSG_SHOW_NO_MEDIA = 12;
/**
* Hide any overlay messages. This must be called on the UI Handler.
*/
private static final int MSG_HIDE_MESSAGE_OVERLAY = 13;
@Override
public boolean handleMessage(Message message)
@ -262,23 +308,23 @@ public class FullPlaybackActivity extends PlaybackActivity implements SeekBar.On
SharedPreferences.Editor editor = settings.edit();
editor.putBoolean("separate_info", mCoverView.mSeparateInfo);
editor.commit();
return true;
break;
case MSG_UPDATE_PROGRESS:
updateProgress();
break;
case MSG_SHOW_NO_MEDIA:
showMessageOverlay();
setNoMediaOverlayMessage();
break;
case MSG_HIDE_MESSAGE_OVERLAY:
hideMessageOverlay();
break;
default:
return super.handleMessage(message);
}
}
private Handler mUiHandler = new Handler() {
@Override
public void handleMessage(Message message)
{
switch (message.what) {
case MSG_UPDATE_PROGRESS:
updateProgress();
break;
}
}
};
return true;
}
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser)
{