androidandroid-toolbarandroid-collapsingtoolbarlayoutappbarcoordinator-layout
Keep the image after collapse the layout in coordinator layout and set min height
I am working in collapseToolbarLayout, in the design in the appBar it should be an image in the bottom anchor of the appBar (most of the designs put a floatingActionButton .. here I am using an image) I need partially collapse as I scroll up, but not completely. so I get some solution to set a min height from this custom height for appBar
I tried one solution and its work, but, when I scroll up totally the image has been cut and the toolbar disappear , how to make the image stay as it is and not cut, in case of floatingActionButton the button disappear if you understand what I mean in my case which is an image I don't want it to disappear nor been cut
see this image to understand what is happen
what I want is to keep the image like this here and also with the toolbar
here is the layout
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".MainActivity">
<androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/pink"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context=".MainActivity"
android:paddingBottom="?attr/actionBarSize"
tools:showIn="@layout/activity_main"
>
<RelativeLayout
app:layout_behavior="@string/appbar_scrolling_view_behavior"
android:layout_marginTop="80dp"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/transparent">
<TextView
android:id="@+id/offerNameTxt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_marginBottom="20dp"
android:letterSpacing="0.01"
android:text="Get a Pizza Free"
android:textColor="@color/colorPrimary"
android:textSize="34sp"
android:textStyle="bold"/>
<TextView
android:id="@+id/descTitTxt"
style="@style/AppTheme"
android:textColor="@color/colorPrimary"
android:layout_below="@+id/offerNameTxt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Description"
/>
<TextView android:id="@+id/offerDescTxt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="16sp"
android:layout_below="@+id/descTitTxt"
android:fontFamily="sans-serif"
android:textStyle="normal"
android:layout_marginTop="8dp"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.03"
android:lineSpacingExtra="12sp"
android:text="Lorem ipsum dolor sit amet, consectetur adipiscing elit. Rutrum
placerat habitant in eget. Enim elementum in sed lorem nisi purus pharetra. Suscipit
pellentesque nibh interdum ultrices enim, amet libero gravida scelerisque Rutrum
placerat."
/>
<View
android:id="@+id/line"
android:layout_width="match_parent"
android:layout_height="2dp"
android:layout_marginTop="100dp"
android:layout_below="@+id/offerDescTxt"
android:background="@color/colorPrimary"
android:alpha="0.4"/>
<LinearLayout
android:id="@+id/socialMediaLayout"
android:layout_marginTop="40dp"
android:layout_below="@+id/line"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center"
android:padding="10dp">
<ImageView
android:layout_width="30dp"
android:layout_height="30dp"
android:tint="@color/colorPrimary"
android:layout_marginEnd="40dp"
android:src="@drawable/ic_launcher_background"/>
<ImageView
android:layout_width="30dp"
android:layout_height="30dp"
android:tint="@color/colorPrimary"
android:layout_marginEnd="40dp"
android:src="@drawable/abc_vector_test"/>
<ImageView
android:layout_width="30dp"
android:layout_height="30dp"
android:tint="@color/colorPrimary"
android:layout_marginEnd="40dp"
android:src="@drawable/ic_launcher_background"/>
<ImageView
android:layout_width="30dp"
android:layout_height="30dp"
android:tint="@color/colorPrimary"
android:layout_marginEnd="40dp"
android:src="@drawable/ic_launcher_foreground"/>
<ImageView
android:layout_width="30dp"
android:layout_height="30dp"
android:tint="@color/colorPrimary"
android:src="@drawable/ic_launcher_foreground"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_marginTop="20dp"
android:layout_below="@+id/socialMediaLayout"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:fontFamily="sans-serif-medium"
android:textStyle="normal"
android:textColor="@color/colorPrimary"
android:letterSpacing="0.01"
android:lineSpacingExtra="6sp"
android:text=" Contact"
/>
</LinearLayout>
</RelativeLayout>
</androidx.core.widget.NestedScrollView>
<com.google.android.material.appbar.AppBarLayout
android:id="@+id/app_bar"
android:layout_width="match_parent"
android:layout_height="300dp"
android:fitsSystemWindows="true">
<om.metamorph.mycollapsingdemo.CustomCollapseLayout
android:id="@+id/toolbar_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:minHeight="100dp"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:id="@+id/expandedImage"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="fitXY"
android:background="@drawable/immmg"
app:layout_collapseMode="parallax"
app:layout_collapseParallaxMultiplier="0.7" />
<androidx.appcompat.widget.Toolbar
android:id="@+id/toolbar"
android:background="@color/colorPrimary"
android:alpha="0.8"
android:gravity="center"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center">
<TextView
android:id="@+id/TitleTxt"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:fontFamily="sans-serif-medium"
android:gravity="bottom|center"
android:text="Pizza Hut"
android:textColor="@color/colorAccent"
android:textSize="18sp"
android:textStyle="bold" />
</RelativeLayout>
</androidx.appcompat.widget.Toolbar>
</om.metamorph.mycollapsingdemo.CustomCollapseLayout>
</com.google.android.material.appbar.AppBarLayout>
<ImageView
android:id="@+id/fab"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_margin="16dp"
app:layout_anchor="@id/app_bar"
app:layout_anchorGravity="bottom|start"
android:src="@drawable/img22" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
and here the MainActivity
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final ImageView fab = (ImageView) findViewById(R.id.fab);
fab.bringToFront();
AppBarLayout mAppBarLayout = (AppBarLayout) findViewById(R.id.app_bar);
mAppBarLayout.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() {
boolean isShow = false;
int scrollRange = -1;
@Override
public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
/**
* Collapsed
*/
if (Math.abs(verticalOffset) == appBarLayout.getTotalScrollRange()) {
fab.animate().scaleX((float)0.4).setDuration(3000);
fab.animate().scaleY((float)0.4).setDuration(3000);
fab.animate().alpha(1).setDuration(0);
/**
* Expanded
*/
} else if (verticalOffset == 0) {
fab.animate().scaleX((float)1).setDuration(100);
fab.animate().scaleY((float)1).setDuration(100);
fab.animate().alpha(1).setDuration(0);
/**
* Somewhere in between
*/
} else {
final int scrollRange = appBarLayout.getTotalScrollRange();
float offsetFactor = (float) (-verticalOffset) / (float) scrollRange;
float scaleFactor = 1F - offsetFactor * .5F;
fab.animate().scaleX(scaleFactor);
fab.animate().scaleY(scaleFactor);
}
}
});
}
}
and this the custom collapse layout class that I used to fix the height to what I want,
public class CustomCollapseLayout extends FrameLayout {
private static final String TAG = "CollapsingImageLayout";
private WindowInsetsCompat mLastInsets;
private int mImageTopExpanded;
private int mImageTopCollapsed;
private OnOffsetChangedListener mOnOffsetChangedListener;
public CustomCollapseLayout(Context context) {
this(context, null);
}
public CustomCollapseLayout(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public CustomCollapseLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
mImageTopCollapsed = getResources().getDimensionPixelOffset(R.dimen.image_top_margin_collapsed);
ViewCompat.setOnApplyWindowInsetsListener(this,
new androidx.core.view.OnApplyWindowInsetsListener() {
@Override
public WindowInsetsCompat onApplyWindowInsets(View v, WindowInsetsCompat insets) {
return setWindowInsets(insets);
}
});
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
// Add an OnOffsetChangedListener if possible
final ViewParent parent = getParent();
if (parent instanceof AppBarLayout) {
if (mOnOffsetChangedListener == null) {
mOnOffsetChangedListener = new OnOffsetChangedListener();
}
((AppBarLayout) parent).addOnOffsetChangedListener(mOnOffsetChangedListener);
}
// We're attached, so lets request an inset dispatch
ViewCompat.requestApplyInsets(this);
}
private WindowInsetsCompat setWindowInsets(WindowInsetsCompat insets) {
if (mLastInsets != insets) {
mLastInsets = insets;
requestLayout();
}
return insets.consumeSystemWindowInsets();
}
class OnOffsetChangedListener implements AppBarLayout.OnOffsetChangedListener {
@Override
public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
}
}
}
please help I am new to cllapsetoolbarlayout, if something not clear tell me please, thanks in advance
Solution
the hack here is to make ImageView on top of other layouts be giving it higher z-index
final ImageView fab = (ImageView) findViewById(R.id.fab);
ViewCompat.setTranslationZ(fab, 100);