What is collapsingtoolbarlayout in Android?
CollapsingToolbarLayout is a wrapper for Toolbar which implements a collapsing app bar. It is designed to be used as a direct child of a AppBarLayout.
What is a collapsing toolbar?
A collapsing toolbar layout widget can be used along with a basic toolbar widget to create a more sophisticated version of the regular toolbar. Expanding and collapsing toolbar on-screen scrolling is a fantastic toolbar motion made possible by this widget, it automatically increases the toolbar size set in the app bar layout widget.
What is toolbar layout in Android?
What is Toolbar android? Android CollapsingToolbarLayout is a wrapper for Toolbar which implements a collapsing app bar. It is designed to be used as a direct child of a AppBarLayout. This type of layout is commonly seen in the Profile Screen of the Whatsapp Application.
Can a profile view collapse into a normal toolbar?
This profile view would fill the top of the screen with a profile picture, and then collapse into a “normal” toolbar when scrolling to the bottom of the screen. Initially, I was worried that we would have to go out and find a third party library that implemented this collapsing toolbar (or write it myself).
How do I use collapsing Toolbar in Android?
Step by Step ImplementationStep 1: Create a New Project.Step 2: Add Design Support Library.Step 3: Add Image.Step 4: Working with strings.xml file.Step 5: Working with the activity_main.xml file.
How do I know if my collapsed Toolbar is collapsing?
@Atieh to further explain it, when the collapsing toolbar is fully expanded the offset value is equal to zero (offset == 0) ... I changed the if condition to verticalOffset < -710 then the problem solved. ... To detect if fully collapsed check if Math.abs(offset) == appBarLayout.More items...•
What is Android CoordinatorLayout?
CoordinatorLayout is a super-powered FrameLayout . CoordinatorLayout is intended for two primary use cases: As a top-level application decor or chrome layout. As a container for a specific interaction with one or more child views.
How do I disable scrolling in collapsing Toolbar layout Android?
The solution is simple, we just need to set the app:scrimAnimationDuration=”0" in our collapsing toolbar layout like the below code snippet. Now just run the code and see the results, you will see then there will be no fading animation anymore.
What is collapsing Toolbar?
Android CollapsingToolbarLayout is a wrapper for Toolbar which implements a collapsing app bar. It is designed to be used as a direct child of a AppBarLayout. This type of layout is commonly seen in the Profile Screen of the Whatsapp Application.
How do I set a custom Toolbar on Android?
Add a Toolbar to an ActivityAdd the v7 appcompat support library to your project, as described in Support Library Setup.Make sure the activity extends AppCompatActivity : ... In the app manifest, set the
What is the purpose of the CoordinatorLayout?
The Coordinator Layout is described as a “a super-powered FrameLayout” according to the docs. It is used to facilitate how views within your layout interact with each other. This is done by creating or assigning specific Behaviors to these views.
What is a snackbar android?
Snackbar in android is a new widget introduced with the Material Design library as a replacement of a Toast. Android Snackbar is light-weight widget and they are used to show messages in the bottom of the application with swiping enabled. Snackbar android widget may contain an optional action button.
What is Toolbar android?
In Android applications, Toolbar is a kind of ViewGroup that can be placed in the XML layouts of an activity. It was introduced by the Google Android team during the release of Android Lollipop(API 21). The Toolbar is basically the advanced successor of the ActionBar.
What is layout_collapseMode?
In addition to pinning a view, you can use app:layout_collapseMode="parallax" (and optionally app:layout_collapseParallaxMultiplier="0.7" to set the parallax multiplier) to implement parallax scrolling (say of a sibling ImageView within the CollapsingToolbarLayout ).
What is AppBarLayout?
AppBarLayout is a vertical LinearLayout which implements many of the features of material designs app bar concept, namely scrolling gestures. Children should provide their desired scrolling behavior through AppBarLayout.
What is app bar layout?
AppBarLayout is a vertical LinearLayout which implements many of the features of material designs app bar concept, namely scrolling gestures. Children should provide their desired scrolling behavior through AppBarLayout.
What is FrameLayout android?
FrameLayout is designed to block out an area on the screen to display a single item. Generally, FrameLayout should be used to hold a single child view, because it can be difficult to organize child views in a way that's scalable to different screen sizes without the children overlapping each other.
What is ConstraintLayout?
A ConstraintLayout is a ViewGroup which allows you to position and size widgets in a flexible way. Note: ConstraintLayout is available as a support library that you can use on Android systems starting with API level 9 (Gingerbread). As such, we are planning on enriching its API and capabilities over time.
What is nested scroll view?
NestedScrollView is just like ScrollView , but it supports acting as both a nested scrolling parent and child on both new and old versions of Android. Nested scrolling is enabled by default.
Public methods
Returns the horizontal and vertical alignment for title when collapsed.
Inherited methods
From class android.widget.FrameLayout boolean checkLayoutParams (ViewGroup.LayoutParams arg0) ViewGroup.LayoutParams generateDefaultLayoutParams () ViewGroup.LayoutParams generateLayoutParams (AttributeSet arg0) ViewGroup.LayoutParams generateLayoutParams (ViewGroup.LayoutParams arg0) CharSequence getAccessibilityClassName () boolean getConsiderGoneChildrenWhenMeasuring () boolean getMeasureAllChildren () void onLayout (boolean arg0, int arg1, int arg2, int arg3, int arg4) void onMeasure (int arg0, int arg1) void setForegroundGravity (int arg0) void setMeasureAllChildren (boolean arg0) boolean shouldDelayChildPressedState ().
getCollapsedTitleGravity
Returns the horizontal and vertical alignment for title when collapsed.
getExpandedTitleGravity
Returns the horizontal and vertical alignment for title when expanded.
getHyphenationFrequency
Gets the hyphenation frequency of the title text, or -1 if not set. Experimental Feature.
getLineCount
Gets the current number of lines of the title text. Experimental Feature.
getLineSpacingAdd
Gets the line spacing addition of the title text, or -1 if not set. Experimental Feature.
How to set title in collapsing toolbar?
u just need to set title as collapsingToolbarLayout.setTitle(" YOUR TITLE"); and when you scroll the title will automatically move to toolbar
Can you override onattchedtowindow?
For a custom layout (like I did), you can override onAttachedToWindowand add the listener there:
What happens when you scroll up the nested scroll view?
If the NestedScrollView is being scrolled up, it will in turn push-up and collapse the CollapsingToolbar to the top allowing it to disappear , enabling the NestedScrollView to expand fully.
Does snap always collapse?
snap will always try and set the CollapsingToolbar to either a collapsed or expanded state depending on where the CollapsingToolbar collapsed or expanded to. (I think its best left to the illustration to define it).
IMAGEVIEW
Just a normal ImageView, with a few exceptions: we are setting the “layout_collapseMode” to “parallax”, which causes the ImageView to move as the user scrolls at a specific ratio. You can set this ratio with the (optional) “layout_collapseParallaxMultiplier” setting.
TEXTVIEW
This is simply the scrollable content. This doesn’t have to be a TextView – it can be any kind of layout, recyclerview, etc. I used a TextView here for simplicity’s sake.
