Develop Reference

How to swipe ViewPager while the content is being scrolled?

I am able to implement TabLayout with ViewPager nicely but when the content inside the ViewPager is being scrolled (the deceleration animation), I cannot swipe left and right to change to other fragments inside ViewPager. I have to wait until the scrolling animation stops and then swipe.
Below is some of my code snippets.
I have a simple activity_main.xml layout like below.
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbarHome"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorPrimary"/>
<LinearLayout
android:id="#+id/mainContainerLayout"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="vertical">
</LinearLayout>
<android.support.design.widget.BottomNavigationView
android:id="#+id/btmNavView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/white"
app:menu="#menu/menu_main" />
</LinearLayout>
I then inflate a fragment containing TabLayout and ViewPager into the LinearLayout in the middle of the activity_main.xml. This layout can be seen below:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<com.pchatanan.sontana.custom_views.AppTabLayout
android:id="#+id/contactTabLayout"
app:tabMode="fixed"
android:layout_height="wrap_content"
android:layout_width="match_parent"
style="#style/AppTabLayout"/>
<android.support.v4.view.ViewPager
android:id="#+id/contactViewPager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
The logic inside my fragment is below:
fragmentArray = new Fragment[]{new SimpleFragment(), new SimpleFragment(), new SimpleFragment()};
titleArray = new String[]{"fragment1", "fragment2", "fragment3"};
contactPagerAdapter = new AppPagerAdapter(getChildFragmentManager(), fragmentArray, titleArray);
contactViewPager.setAdapter(contactPagerAdapter);
contactViewPager.setOffscreenPageLimit(fragmentArray.length - 1);
contactTabLayout.setupWithViewPager(contactViewPager);

Use this instead defualt ViewPager.
Detect when ScrollView or RecyclerView is scrolling. Then call
viewPager.setPagingEnabled(pagingEnable);
If pagingEnable
public class CustomViewPager extends ViewPager {
private boolean isPagingEnabled = true;
public CustomViewPager(Context context) {
super(context);
}
public CustomViewPager(Context context, AttributeSet attrs) {
super(context, attrs);
}
public boolean onTouchEvent(MotionEvent event) {
return this.isPagingEnabled && super.onTouchEvent(event);
}
public boolean onInterceptTouchEvent(MotionEvent event) {
return this.isPagingEnabled && super.onInterceptTouchEvent(event);
}
public void setPagingEnabled(boolean b) {
this.isPagingEnabled = b;
}
}
Update:
You can do reverse to like you can disable ScrollView scroll when ViewPager is swiping
mScrollView.requestDisallowInterceptTouchEvent(true);

Similar to what suggested by #Khemraj, the problem is the touch is not intercepted by ViewPager. It is only intercepted by the ScrollView. To fix this, we should allow ViewPage to intercept the touch when scrolling:
scrollView.setOnScrollChangeListener(new View.OnScrollChangeListener() {
#Override
public void onScrollChange(View view, int i, int i1, int i2, int i3) {
viewPager.requestDisallowInterceptTouchEvent(false);
}
});
A better implementation is to make use of CallBackListener onto the fragment containing the scrollView.

How do I make a Scrollable TextView inside CollapsingToolbar?

I am currently experimenting with CoordinatorLayout + AppbarLayout + CollapsingToolbarLayout in a way such that:
1) Scroll down the Appbar using "Toolbar" [ No Nested ScrollView / RecyclerView ].
2) The content below the appbar should move along with the appbar scrolling.
3) Multiple images kept under ViewPager.
4) The last item in the ViewPager would be an textview.
I have achieved 1) and 2) using the following layout :
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:tools="http://schemas.android.com/tools">
<android.support.design.widget.AppBarLayout
android:id="#+id/flexible.example.appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
>
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/flexible.example.collapsing"
android:layout_width="match_parent"
android:layout_height="300dp"
app:expandedTitleMarginBottom="94dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed|snap"
app:contentScrim="?colorPrimary"
>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:id="#+id/text_sample"
android:scrollbars="vertical"
android:scrollIndicators="right"
app:layout_collapseMode="parallax"
app:layout_scrollFlags="scroll|enterAlways"
android:layout_gravity="center"
android:nestedScrollingEnabled="true"
/>
</android.support.design.widget.CollapsingToolbarLayout>
<android.support.v7.widget.Toolbar
android:id="#+id/ioexample.toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#color/PM01"
android:elevation="4dp"
app:layout_collapseMode="pin"
app:layout_anchor="#id/flexible.example.collapsing"
app:layout_anchorGravity="bottom"
app:theme="#style/ThemeOverlay.AppCompat.Light"
style="#style/ToolBarWithNavigationBack"
app:layout_scrollFlags="scroll|enterAlways|snap"
>
</android.support.v7.widget.Toolbar>
</android.support.design.widget.AppBarLayout>
<android.support.v7.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/recyclerviewcontainer"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
What I am trying to achieve now is to make the textview inside collpasingtoolbarlayout is to be scrollable (#4 above). Since my search till now has made me believe that the Appbar is handling all the touch events by itself, this doesn't seems to be easy. But since it is a requirement, I would be more than happy to have a guidance / pointers to help me complete this.
Can someone please let me know what and where to look for achieving this functionality.

After a lot of research and some more searching through SO, I got an idea what I need to do in order to achieve the desired effect:
1) Implement a custom behavior for appbarlayout :
public class AppBarLayoutCustomBehavior extends AppBarLayout.Behavior {
private boolean setIntercept = false;
private boolean lockAppBar = false;
DragCallback mDragCallback = new DragCallback() {
#Override
public boolean canDrag(#NonNull AppBarLayout appBarLayout) {
return !lockAppBar;
}
};
#Override
public boolean onInterceptTouchEvent(CoordinatorLayout parent, AppBarLayout child, MotionEvent ev) {
super.onInterceptTouchEvent(parent, child, ev);
return setIntercept;
}
public void setInterceptTouchEvent(boolean set) {
setIntercept = set;
}
public AppBarLayoutCustomBehavior() {
super();
setDragCallback(mDragCallback);
}
public AppBarLayoutCustomBehavior(Context ctx, AttributeSet attributeSet) {
super(ctx, attributeSet);
setDragCallback(mDragCallback);
}
public void lockAppBar() {
lockAppBar = true;
}
public void unlockAppBar() {
lockAppBar = false;
}
}
2) Use this custom behavior with app bar :
CoordinatorLayout.LayoutParams lp = (CoordinatorLayout.LayoutParams)appBarLayout.getLayoutParams();
final AppBarLayoutCustomBehavior mBehavior = new AppBarLayoutCustomBehavior();
lp.setBehavior(mBehavior);
/// use toolbar to enable/disable dragging on the appbar behavior. This way
/// out toolbar acts as a drag handle for the app bar.
Toolbar toolbar = (Toolbar) activity.findViewById(R.id.main_toolbar);
toolbar.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
switch(event.getAction()) {
case MotionEvent.ACTION_DOWN:
mBehavior.setInterceptTouchEvent(true);
return true;
case MotionEvent.ACTION_CANCEL:
mBehavior.setInterceptTouchEvent(false);
return true;
}
return false;
}
});
3) Set movement method on the textview to make it scrollable
textView.setMovementMethod(ScrollingMovementMethod.getInstance());

Is it possible to touch the ImageView inside CollapsingToolbarLayout and scroll it?

I'm trying to get a fullscreen CollapsingToolbar but when I set match_parent to the height of AppBarLayout I'm not able to scroll the ImageView which is inside CollapsingToolbarLayout. I have to leave some space so that I can touch the "white" of the activity (in AppBarLayout I added android:layout-marginBottom:"16dp" ) and only then, after I touched it, I can scroll the ImageView otherwise I can't.
This happens everytime I run the app and touch the layout for the first time. So I have to touch the white first and then scroll the image.
Could you help me?
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:id="#+id/drawer">
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="16dp"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginStart="48dp"
app:expandedTitleMarginEnd="64dp">
<ImageView
android:id="#+id/image"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scaleType="centerCrop"
android:fitsSystemWindows="true"
app:layout_collapseMode="parallax"
android:contentDescription="#null"
android:src="#drawable/background" />
<android.support.v7.widget.Toolbar
android:layout_height="?attr/actionBarSize"
android:layout_width="match_parent"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
app:layout_collapseMode="pin"
app:theme="#style/ToolbarTheme"
android:id="#+id/toolbar"/>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:id="#+id/scroll"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipToPadding="false"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
</FrameLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
<com.myapplication.ScrimInsetsFrameLayout
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="304dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:insetForeground="#4000"
android:clickable="true"
android:background="#ffffff">
...
</com.myapplication.ScrimInsetsFrameLayout>
</android.support.v4.widget.DrawerLayout>
EDIT #PPartisan I've done what you said but here's what I got:

This isn't a nice solution, but it does work on my test device. It kick starts the scrolling process by explicitly assigning a touch listener to the AppBar that triggers a nested scroll.
First, create a custom class that extends NestedScrollView and add the following method so it look something like this:
public class CustomNestedScrollView extends NestedScrollView {
private int y;
public CustomNestedScrollView(Context context) {
super(context);
}
public CustomNestedScrollView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public boolean dispatchHandlerScroll(MotionEvent e) {
switch (e.getAction()) {
case MotionEvent.ACTION_DOWN:
y = (int) e.getY();
startNestedScroll(2);
break;
case MotionEvent.ACTION_MOVE:
int dY = y - ((int)e.getY());
dispatchNestedPreScroll(0, dY, null, null);
dispatchNestedScroll(0, 0, 0, dY, null);
break;
case MotionEvent.ACTION_UP:
stopNestedScroll();
break;
}
return true;
}
}
Then, inside your Activity class, assign a TouchListener to your AppBarLayout:
appBarLayout.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
return customNestedScrollView.dispatchHandlerScroll(event);
}
});
and remove it when the AppBar collapses fully for the first time:
#Override
public boolean dispatchTouchEvent(MotionEvent ev) {
if (Math.abs(appBarLayout.getY()) == appBarLayout.getTotalScrollRange()) {
appBarLayout.setOnTouchListener(null);
}
return super.dispatchTouchEvent(ev);
}
Edit
Take the following steps to get it up and running:
Replace the NestedScrollView in your xml(android.support.v4.widget.NestedScrollView) with the CustomNestedScrollView (which will take the form of com.something.somethingelse.CustomNestedScrollView, depending on where it is in your project).
Assign it to a variable in your Activity onCreate()(i.e. CustomScrollView customScrollView = (CustomScrollView) findViewById(R.id.custom_scroll_view_id);)
Set up the TouchListener on your appBarLayout as you have done in your edit. Now when you call dispatchHandlerScroll(), it will be on your customNestedScrollView instance.
dispatchTouchEvent() is a method you override in your Activity class, so it should be outside the TouchListener
So, for example:
public class MainActivity extends AppCompatActivity {
private AppBarLayout appBarLayout;
private CustomNestedScrollView customNestedScrollView;
//...
#Override
protected void onCreate(Bundle savedInstanceState) {
//...
customNestedScrollView = (CustomNestedScrollView) findViewById(R.id.scroll);
appBarLayout = (AppBarLayout) findViewById(R.id.app_bar_layout);
appBarLayout.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
return customNestedScrollView.dispatchHandlerScroll(event);
}
});
}
#Override
public boolean dispatchTouchEvent(MotionEvent ev) {
if (Math.abs(appBarLayout.getY()) == appBarLayout.getTotalScrollRange()) {
appBarLayout.setOnTouchListener(null);
}
return super.dispatchTouchEvent(ev);
}
}
Hope that's cleared things up.

Try to add a tiny margin so the white space below will be almost invisible (you might also want to change white to accent color so the space will not be visible)
Another approach is to set the height of app bar layout dynamically by getting the height of the screen.
EDIT:
This might be a focus problem, try to add dummy layout to your main content, that will be focused automatically
<LinearLayout
android:layout_width="0px"
android:layout_height="0px"
android:focusable="true"
android:focusableInTouchMode="true" />
or even just add these attributes to your content layout
android:focusable="true"
android:focusableInTouchMode="true"

ListView inside of SlidingPaneLayout

I have an activity layout like this:
<?xml version="1.0" encoding="utf-8"?>
<SlidingPaneLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/course_menu_sliding_layout"
android:layout_width="match_parent"
android:background="#color/white"
android:layout_height="match_parent">
<!-- Here is any view that will represent your side menu. Don't forget to provide width! -->
<FrameLayout
android:id="#+id/course_activity_menu"
android:layout_width="#dimen/edu5_menu_width"
android:layout_height="match_parent"
android:background="#color/white"
android:layout_gravity="start" />
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="#+id/courseActivityNavigationController"
android:layout_width="match_parent"
android:layout_height="#dimen/edu5_navigation_controller_height"
/>
<FrameLayout
android:id="#+id/courseActivityContentFragmentContainer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/c_popup_bg"
android:layout_below="#id/courseActivityNavigationController"
/>
</RelativeLayout>
</SlidingPaneLayout>
Now, on the 'FrameLayout' with id: 'courseActivityContentFragmentContainer' I add a 'Fragment' which contains several 'Fragment's in it, one of them contains a 'ListView' inside its view layout.
The issue is that when I scroll the list, it begins to scroll but then the 'SlidingPaneLayout' takes control and slides the pane layout.
Any thoughts?

The solution I found was extend the 'SlidingPaneLayout' and to pass the visible rectangle of the of the 'ListView' to it so it won't intercept touch events that inside the 'ListView'
Here's is the code:
public class MySlidingPaneLayout extends SlidingPaneLayout {
private Rect mIgnoreRect;
...
...
#Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
if ( !isOpen() && mIgnoreRect != null && mIgnoreRect.contains((int)ev.getX(), (int)ev.getY()) )
{
return false;
}
try
{
return super.onInterceptTouchEvent(ev);
}
catch ( Exception ex )
{
Log.e(TAG, "super.onInterceptTouchEvent threw exception", ex);
}
return false;
}
}
By the way, I do a try and catch because sometimes there's a 'NullPointerException' thrown, I couldn't find out why.

MapFragment in ScrollView

I have one of the new MapFragments in a ScrollView. Actually it's a SupportMapFragment, but anyway. It works, but there are two problems:
When scrolled, it leaves a black mask behind. The black covers exactly the area where the map was, except for a hole where the +/- zoom buttons were. See screenshot below. This is on Android 4.0.
The view doesn't use requestDisallowInterceptTouchEvent() when the user interacts with the map to prevent the ScrollView intercepting touches, so if you try to pan vertically in the map, it just scrolls the containing ScrollView. I could theoretically derive a view class MapView and add that functionality, but how can I get MapFragment to use my customised MapView instead of the standard one?

Applying a transparent image over the mapview fragment seems to resolve the issue. It's not the prettiest, but it seems to work. Here's an XML snippet that shows this:
<RelativeLayout
android:id="#+id/relativeLayout1"
android:layout_width="match_parent"
android:layout_height="300dp" >
<fragment
android:id="#+id/map"
android:name="com.google.android.gms.maps.MapFragment"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
<ImageView
android:id="#+id/imageView123"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/temp_transparent" />
</RelativeLayout>

For me adding a transparent ImageView did not help remove the black mask completely. The top and bottom parts of map still showed the black mask while scrolling.
So the solution for it, I found in this answer with a small change.
I added,
android:layout_marginTop="-100dp"
android:layout_marginBottom="-100dp"
to my map fragment since it was vertical scrollview. So my layout now looked this way:
<RelativeLayout
android:id="#+id/map_layout"
android:layout_width="match_parent"
android:layout_height="300dp">
<fragment
android:id="#+id/mapview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="-100dp"
android:layout_marginBottom="-100dp"
android:name="com.google.android.gms.maps.MapFragment"/>
<ImageView
android:id="#+id/transparent_image"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#color/transparent" />
</RelativeLayout>
To solve the second part of the question I set requestDisallowInterceptTouchEvent(true) for my main ScrollView. When the user touched the transparent image and moved I disabled the touch on the transparent image for MotionEvent.ACTION_DOWN and MotionEvent.ACTION_MOVE so that map fragment can take Touch Events.
ScrollView mainScrollView = (ScrollView) findViewById(R.id.main_scrollview);
ImageView transparentImageView = (ImageView) findViewById(R.id.transparent_image);
transparentImageView.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
int action = event.getAction();
switch (action) {
case MotionEvent.ACTION_DOWN:
// Disallow ScrollView to intercept touch events.
mainScrollView.requestDisallowInterceptTouchEvent(true);
// Disable touch on transparent view
return false;
case MotionEvent.ACTION_UP:
// Allow ScrollView to intercept touch events.
mainScrollView.requestDisallowInterceptTouchEvent(false);
return true;
case MotionEvent.ACTION_MOVE:
mainScrollView.requestDisallowInterceptTouchEvent(true);
return false;
default:
return true;
}
}
});
This worked for me. Hope it helps you..

This probably has its roots in the same place at causes the problem in this question. The solution there is to use a transparent frame, which is a little lighter weight than a transparent image.

Done after lots of R&D:
fragment_one.xml should looks like:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/scrollViewParent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="400dip" >
<com.google.android.gms.maps.MapView
android:id="#+id/mapView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<View
android:id="#+id/customView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#android:color/transparent" />
</RelativeLayout>
<!-- Your other elements are here -->
</LinearLayout>
</ScrollView>
Your Java class of FragmentOne.java looks like:
private GoogleMap mMap;
private MapView mapView;
private UiSettings mUiSettings;
private View customView
onCreateView
mapView = (MapView) rootView.findViewById(R.id.mapView);
mapView.onCreate(savedInstanceState);
if (mapView != null) {
mMap = mapView.getMap();
mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
mUiSettings = mMap.getUiSettings();
mMap.setMyLocationEnabled(true);
mUiSettings.setCompassEnabled(true);
mUiSettings.setMyLocationButtonEnabled(false);
}
scrollViewParent = (ScrollView)rootView.findViewById(R.id.scrollViewParent);
customView = (View)rootView.findViewById(R.id.customView);
customView.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
int action = event.getAction();
switch (action) {
case MotionEvent.ACTION_DOWN:
// Disallow ScrollView to intercept touch events.
scrollViewParent.requestDisallowInterceptTouchEvent(true);
// Disable touch on transparent view
return false;
case MotionEvent.ACTION_UP:
// Allow ScrollView to intercept touch events.
scrollViewParent.requestDisallowInterceptTouchEvent(false);
return true;
case MotionEvent.ACTION_MOVE:
scrollViewParent.requestDisallowInterceptTouchEvent(true);
return false;
default:
return true;
}
}
});

I used this structures and I overcame the problem.
I used a container view for maps fragment.
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:text="Another elements in scroll view1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<com.erolsoftware.views.MyMapFragmentContainer
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="250dp">
<fragment
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/eventMap"
tools:context="com.erolsoftware.eventapp.EventDetails"
android:name="com.google.android.gms.maps.SupportMapFragment"/>
</com.erolsoftware.views.MyMapFragmentContainer>
<TextView
android:text="Another elements in scroll view2"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
</ScrollView>
The container class:
public class MyMapFragmentContainer extends LinearLayout {
#Override
public boolean onInterceptTouchEvent(MotionEvent ev)
{
if (ev.getActionMasked() == MotionEvent.ACTION_DOWN)
{
ViewParent p = getParent();
if (p != null)
p.requestDisallowInterceptTouchEvent(true);
}
return false;
}
public MyMapFragmentContainer(Context context) {
super(context);
}
public MyMapFragmentContainer(Context context, AttributeSet attrs) {
super(context, attrs);
}
public MyMapFragmentContainer(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
}

No need to struggle with customScrollViews and transparent layout files. simply use lighter version of google map and your issue will be resolved.
map:liteMode="true"
add above property inside map fragment in your layout file. and issue will be fixed.

For the second part of the question - you can derive a fragment class from SupportMapFragment, and use that in your layout instead. You can then override Fragment#onCreateView, and instantiate your custom MapView there.
If that does not work, you can always create your own fragment - then you just need to take care of calling all the lifecycle methods yourself (onCreate, onResume, etc). This answer has some more details.

<ScrollView
android:layout_width="match_parent"
::
::
::
<FrameLayout
android:id="#+id/map_add_business_one_rl"
android:layout_width="match_parent"
android:layout_height="100dp"
>
<fragment
android:id="#+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="-100dp"
android:layout_marginBottom="-100dp"
/>
</FrameLayout>
::
::
::
</ScrollView>