public void testGetColorWithAlpha() {
assertEquals(
Color.parseColor("#00123456"),
ScrollUtils.getColorWithAlpha(0, Color.parseColor("#FF123456")));
assertEquals(
Color.parseColor("#FF123456"),
ScrollUtils.getColorWithAlpha(1, Color.parseColor("#FF123456")));
}
@Override
public void onScrollChanged(int scrollY, boolean firstScroll, boolean dragging) {
// Translate overlay and image
float flexibleRange = mFlexibleSpaceImageHeight - mActionBarSize;
int minOverlayTransitionY = mActionBarSize - mOverlayView.getHeight();
ViewHelper.setTranslationY(
mOverlayView, ScrollUtils.getFloat(-scrollY, minOverlayTransitionY, 0));
ViewHelper.setTranslationY(
mImageView, ScrollUtils.getFloat(-scrollY / 2, minOverlayTransitionY, 0));
// Change alpha of overlay
ViewHelper.setAlpha(mOverlayView, ScrollUtils.getFloat((float) scrollY / flexibleRange, 0, 1));
// Scale title text
float scale =
1
+ ScrollUtils.getFloat(
(flexibleRange - scrollY) / flexibleRange, 0, MAX_TEXT_SCALE_DELTA);
ViewHelper.setPivotX(mTitleView, 0);
ViewHelper.setPivotY(mTitleView, 0);
ViewHelper.setScaleX(mTitleView, scale);
ViewHelper.setScaleY(mTitleView, scale);
// Translate title text
int maxTitleTranslationY = (int) (mFlexibleSpaceImageHeight - mTitleView.getHeight() * scale);
int titleTranslationY = maxTitleTranslationY - scrollY;
ViewHelper.setTranslationY(mTitleView, titleTranslationY);
// Translate FAB
int maxFabTranslationY = mFlexibleSpaceImageHeight - mFab.getHeight() / 2;
float fabTranslationY =
ScrollUtils.getFloat(
-scrollY + mFlexibleSpaceImageHeight - mFab.getHeight() / 2,
mActionBarSize - mFab.getHeight() / 2,
maxFabTranslationY);
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB) {
// On pre-honeycomb, ViewHelper.setTranslationX/Y does not set margin,
// which causes FAB's OnClickListener not working.
FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) mFab.getLayoutParams();
lp.leftMargin = mOverlayView.getWidth() - mFabMargin - mFab.getWidth();
lp.topMargin = (int) fabTranslationY;
mFab.requestLayout();
} else {
ViewHelper.setTranslationX(mFab, mOverlayView.getWidth() - mFabMargin - mFab.getWidth());
ViewHelper.setTranslationY(mFab, fabTranslationY);
}
// Show/hide FAB
if (fabTranslationY < mFlexibleSpaceShowFabOffset) {
hideFab();
} else {
showFab();
}
}
private void translateTab(int scrollY, boolean animated) {
int flexibleSpaceImageHeight =
getResources().getDimensionPixelSize(R.dimen.flexible_space_image_height);
int tabHeight = getResources().getDimensionPixelSize(R.dimen.tab_height);
View imageView = findViewById(R.id.image);
View overlayView = findViewById(R.id.overlay);
TextView titleView = (TextView) findViewById(R.id.title);
// Translate overlay and image
float flexibleRange = flexibleSpaceImageHeight - getActionBarSize();
int minOverlayTransitionY = tabHeight - overlayView.getHeight();
ViewHelper.setTranslationY(
overlayView, ScrollUtils.getFloat(-scrollY, minOverlayTransitionY, 0));
ViewHelper.setTranslationY(
imageView, ScrollUtils.getFloat(-scrollY / 2, minOverlayTransitionY, 0));
// Change alpha of overlay
ViewHelper.setAlpha(overlayView, ScrollUtils.getFloat((float) scrollY / flexibleRange, 0, 1));
// Scale title text
float scale =
1
+ ScrollUtils.getFloat(
(flexibleRange - scrollY - tabHeight) / flexibleRange, 0, MAX_TEXT_SCALE_DELTA);
setPivotXToTitle(titleView);
ViewHelper.setPivotY(titleView, 0);
ViewHelper.setScaleX(titleView, scale);
ViewHelper.setScaleY(titleView, scale);
// Translate title text
int maxTitleTranslationY = flexibleSpaceImageHeight - tabHeight - getActionBarSize();
int titleTranslationY = maxTitleTranslationY - scrollY;
ViewHelper.setTranslationY(titleView, titleTranslationY);
// If tabs are moving, cancel it to start a new animation.
ViewPropertyAnimator.animate(mSlidingTabLayout).cancel();
// Tabs will move between the top of the screen to the bottom of the image.
float translationY =
ScrollUtils.getFloat(
-scrollY + mFlexibleSpaceHeight - mTabHeight, 0, mFlexibleSpaceHeight - mTabHeight);
if (animated) {
// Animation will be invoked only when the current tab is changed.
ViewPropertyAnimator.animate(mSlidingTabLayout)
.translationY(translationY)
.setDuration(200)
.start();
} else {
// When Fragments' scroll, translate tabs immediately (without animation).
ViewHelper.setTranslationY(mSlidingTabLayout, translationY);
}
}
/* TOOLBAR ANIMATIONS */
private void updateScroll(int scrollY) {
float alpha =
Math.min(
1,
(float) scrollY / (flexibleSpaceHeight - binding.rlAdvertisementInfo.getHeight() - 25));
binding.toolbar.setBackgroundColor(ScrollUtils.getColorWithAlpha(alpha, toolbarColor));
binding.toolbar.setTitleTextColor(ScrollUtils.getColorWithAlpha(alpha, titleColor));
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
detailsView.changeStatusBarColor(ScrollUtils.getColorWithAlpha(alpha / 4, statusBarColor));
}
binding.rlAdvertisementInfo.setAlpha(1 - ((float) scrollY / (flexibleSpaceHeight / 3)));
}
@Override
public void onScrollChanged(int scrollY, boolean firstScroll, boolean dragging) {
int baseColor = getResources().getColor(R.color.Dark);
float alpha = Math.min(1, (float) scrollY / mParallaxImageHeight);
mToolbarView.setBackgroundColor(ScrollUtils.getColorWithAlpha(alpha, baseColor));
ViewHelper.setTranslationY(convenientBanner, scrollY / 2);
}
@Override
public View onCreateView(
LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_art, container, false);
final ObservableScrollView scrollView = (ObservableScrollView) view.findViewById(R.id.scroll);
Activity parentActivity = getActivity();
if (parentActivity instanceof ObservableScrollViewCallbacks) {
// Scroll to the specified offset after layout
Bundle args = getArguments();
if (args != null && args.containsKey(ARG_SCROLL_Y)) {
final int scrollY = args.getInt(ARG_SCROLL_Y, 0);
ScrollUtils.addOnGlobalLayoutListener(
scrollView,
new Runnable() {
@Override
public void run() {
scrollView.scrollTo(0, scrollY);
}
});
}
scrollView.setScrollViewCallbacks((ObservableScrollViewCallbacks) parentActivity);
}
return view;
}
private void initViews(View itemView) {
convenientBanner = (ConvenientBanner) itemView.findViewById(R.id.convenientBanner);
mToolbarView = itemView.findViewById(R.id.toolbar);
mToolbarView.setBackgroundColor(
ScrollUtils.getColorWithAlpha(0, getActivity().getResources().getColor(R.color.Dark)));
mScrollView = (ObservableScrollView) itemView.findViewById(R.id.scroll);
mScrollView.setScrollViewCallbacks(this);
mParallaxImageHeight = getResources().getDimensionPixelSize(R.dimen.parallax_image_height);
}
@Override
public View onCreateView(
LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view =
inflater.inflate(R.layout.fragment_flexiblespacewithimagelistview, container, false);
final ObservableListView listView = (ObservableListView) view.findViewById(R.id.scroll);
// Set padding view for ListView. This is the flexible space.
View paddingView = new View(getActivity());
final int flexibleSpaceImageHeight =
getResources().getDimensionPixelSize(R.dimen.flexible_space_image_height);
AbsListView.LayoutParams lp =
new AbsListView.LayoutParams(
AbsListView.LayoutParams.MATCH_PARENT, flexibleSpaceImageHeight);
paddingView.setLayoutParams(lp);
// This is required to disable header's list selector effect
paddingView.setClickable(true);
listView.addHeaderView(paddingView);
setDummyData(listView);
// TouchInterceptionViewGroup should be a parent view other than ViewPager.
// This is a workaround for the issue #117:
// https://github.com/ksoichiro/Android-ObservableScrollView/issues/117
listView.setTouchInterceptionViewGroup((ViewGroup) view.findViewById(R.id.fragment_root));
// Scroll to the specified offset after layout
Bundle args = getArguments();
if (args != null && args.containsKey(ARG_SCROLL_Y)) {
final int scrollY = args.getInt(ARG_SCROLL_Y, 0);
ScrollUtils.addOnGlobalLayoutListener(
listView,
new Runnable() {
@SuppressLint("NewApi")
@Override
public void run() {
int offset = scrollY % flexibleSpaceImageHeight;
listView.setSelectionFromTop(0, -offset);
}
});
updateFlexibleSpace(scrollY, view);
} else {
updateFlexibleSpace(0, view);
}
listView.setScrollViewCallbacks(this);
updateFlexibleSpace(0, view);
return view;
}
@Override
public void initialize(Context context, ActivityDetailsBinding binding) {
/* STORES CONTEXT */
this.context = context;
/* STORES BINDING */
this.binding = binding;
/* INITIALIZE VIEWS */
binding.setAdvertisement(advertisement);
Picasso.with(context)
.load(advertisement.getImageLarge())
.placeholder(R.mipmap.ic_image)
.centerCrop()
.fit()
.into(binding.ivAdvertisement);
binding.svActivityDetails.setScrollViewCallbacks(new ObservableScrollListener());
ScrollUtils.addOnGlobalLayoutListener(binding.getRoot(), new GlobalLayoutListener());
/* DEFINES VARIABLES USED TO CREATE TOOLBAR ANIMATION ON SCROLL */
flexibleSpaceHeight =
context.getResources().getDimensionPixelSize(R.dimen.activity_details_image_height);
toolbarColor = ContextCompat.getColor(context, R.color.color_primary);
titleColor = ContextCompat.getColor(context, R.color.white);
statusBarColor = ContextCompat.getColor(context, R.color.black);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
/* CREATES THE LINK TO THE TRANSITION ANIMATION */
ViewCompat.setTransitionName(binding.ivAdvertisement, CallManager.TRANSITION_IMAGE);
ViewCompat.setTransitionName(
binding.viewAdvertisementInfo.rlViewAdvertisementInfo, CallManager.TRANSITION_DETAILS);
/* MAKES STATUS BAR TRANSPARENT */
detailsView.initializeStatusBar();
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent intent = getIntent();
cid = intent.getStringExtra("cid");
uid = intent.getStringExtra("uid");
tit = intent.getStringExtra("tit");
setContentView(R.layout.activity_flexiblespacewithimagewithviewpagertab);
ImageView image = (ImageView) findViewById(R.id.image);
image.setImageResource(Util.bgrd(Integer.parseInt(cid)));
mPagerAdapter = new NavigationAdapter(getSupportFragmentManager());
mPager = (ViewPager) findViewById(R.id.pager);
mPager.setAdapter(mPagerAdapter);
mFlexibleSpaceHeight =
getResources().getDimensionPixelSize(R.dimen.flexible_space_image_height);
mTabHeight = getResources().getDimensionPixelSize(R.dimen.tab_height);
TextView titleView = (TextView) findViewById(R.id.title);
titleView.setText(tit);
mSlidingTabLayout = (SlidingTabLayout) findViewById(R.id.sliding_tabs);
mSlidingTabLayout.setCustomTabView(R.layout.tab_indicator, android.R.id.text1);
mSlidingTabLayout.setSelectedIndicatorColors(getResources().getColor(R.color.white));
mSlidingTabLayout.setDistributeEvenly(true);
mSlidingTabLayout.setViewPager(mPager);
// Initialize the first Fragment's state when layout is completed.
ScrollUtils.addOnGlobalLayoutListener(
mSlidingTabLayout,
new Runnable() {
@Override
public void run() {
translateTab(0, false);
}
});
}
public void testMixColors() {
assertEquals(
Color.parseColor("#000000"),
ScrollUtils.mixColors(Color.parseColor("#000000"), Color.parseColor("#FFFFFF"), 0));
}
public void testGetFloat() {
Assert.assertEquals(1.0f, ScrollUtils.getFloat(1, 0, 2));
assertEquals(0.0f, ScrollUtils.getFloat(-1, 0, 2));
assertEquals(2.0f, ScrollUtils.getFloat(3, 0, 2));
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my_profile);
mFlexibleSpaceImageHeight =
getResources().getDimensionPixelSize(R.dimen.flexible_space_image_height);
mFlexibleSpaceShowFabOffset =
getResources().getDimensionPixelSize(R.dimen.flexible_space_show_fab_offset);
mActionBarSize = getActionBarSize();
setSupportActionBar((Toolbar) findViewById(R.id.toolbar));
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
mImageView = findViewById(R.id.image);
mOverlayView = findViewById(R.id.overlay);
mScrollView = (ObservableScrollView) findViewById(R.id.scroll);
mScrollView.setScrollViewCallbacks(this);
mTitleView = (TextView) findViewById(R.id.title);
mTitleView.setText(getTitle());
setTitle(null);
mFab = findViewById(R.id.fab);
mFab.setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(getApplicationContext(), EditProfile.class);
startActivity(intent);
}
});
mFabMargin = getResources().getDimensionPixelSize(R.dimen.margin_standard);
ViewHelper.setScaleX(mFab, 0);
ViewHelper.setScaleY(mFab, 0);
ScrollUtils.addOnGlobalLayoutListener(
mScrollView,
new Runnable() {
@Override
public void run() {
mScrollView.scrollTo(0, mFlexibleSpaceImageHeight - mActionBarSize);
// If you'd like to start from scrollY == 0, don't write like this:
// mScrollView.scrollTo(0, 0);
// The initial scrollY is 0, so it won't invoke onScrollChanged().
// To do this, use the following:
// onScrollChanged(0, false, false);
// You can also achieve it with the following codes.
// This causes scroll change from 1 to 0.
mScrollView.scrollTo(0, 1);
mScrollView.scrollTo(0, 0);
}
});
File path =
new File(Environment.getExternalStorageDirectory(), "/weHappening/profile_image.png");
Bitmap b = null;
if (path.exists()) {
try {
b = BitmapFactory.decodeStream(new FileInputStream(path));
} catch (FileNotFoundException e) {
e.printStackTrace();
}
CircularImageView img = (CircularImageView) findViewById(R.id.imgPicker);
img.setImageBitmap(b);
} else {
CircularImageView img = (CircularImageView) findViewById(R.id.imgPicker);
img.setImageDrawable(getResources().getDrawable(R.drawable.ic_person));
}
}