@Override
public void onScrollChanged(int scrollY, boolean firstScroll, boolean dragging) {
int baseColor = color;
float alpha = Math.min(1, (float) scrollY / mParallaxImageHeight);
mToolbarView.setBackgroundColor(ScrollUtils.getColorWithAlpha(alpha, baseColor));
ViewHelper.setTranslationY(banner, scrollY / 2);
}
private void initialize() {
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar_actionbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowTitleEnabled(false);
mToolbarView = findViewById(R.id.toolbar_actionbar);
// Setup RecyclerView inside drawer
final TypedValue typedValue = new TypedValue();
getTheme().resolveAttribute(R.attr.colorPrimary, typedValue, true);
color = typedValue.data;
mToolbarView.setBackgroundColor(ScrollUtils.getColorWithAlpha(0, color));
mScrollView = (ObservableScrollView) findViewById(R.id.scroll);
mScrollView.addScrollViewCallbacks(this);
mParallaxImageHeight = getResources().getDimensionPixelSize(R.dimen.parallax_image_height);
banner = (ImageView) findViewById(R.id.banner);
displayMainString = (TextView) findViewById(R.id.tv_albumname);
displayFirstSubString = (TextView) findViewById(R.id.tv_title_frst);
displaySecondSubString = (TextView) findViewById(R.id.tv_title_sec);
songsList = (ExpandableHeightListView) findViewById(R.id.listView_songs);
mSongsListAdapter = new AllSongsListAdapter(context);
songsList.setAdapter(mSongsListAdapter);
options =
new DisplayImageOptions.Builder()
.showImageOnLoading(R.drawable.bg_default_album_art)
.showImageForEmptyUri(R.drawable.bg_default_album_art)
.showImageOnFail(R.drawable.bg_default_album_art)
.cacheInMemory(true)
.cacheOnDisk(true)
.considerExifParams(true)
.bitmapConfig(Bitmap.Config.RGB_565)
.build();
try {
fab_button = (ImageView) findViewById(R.id.fab_button);
fab_button.setColorFilter(color);
fab_button.setImageAlpha(255);
} catch (Exception e) {
e.printStackTrace();
}
setupVkMusicHelper();
}