Why is there a Scroll Bar in List View even when the data in displayed in it doesn't require scrolling?
here is my xml file
<LinearLayout 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:background="#drawable/background"
android:orientation="vertical" >
<ListView
android:id="#+id/listview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="#null"
android:dividerHeight="0dip" />
<TextView
android:id="#+id/empty"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:text="#string/no_result_text"
android:visibility="gone" />
</LinearLayout>
Comparing getLastVisiblePosition() with getCount() in a Runnable, you will get to know whether your list view will fit into the screen or not. Also check if the last visible row fits entirely on the screen or not.
ListView listView;
Runnable fitsOnScreen = new Runnable() {
#Override
public void run() {
int last = listView.getLastVisiblePosition();
if(last == listView.getCount() - 1 && listView.getChildAt(last).getBottom() <= listView.getHeight()) {
listView.setScrollContainer(false);
}
else {
listView.setScrollContainer(true);
}
}
};
Finally in ListView's Handler: onCreate()
listView.post(fitsOnScreen);
You can do this by
listView.setScrollContainer(false);
for more please check
How to get a non scrollable ListView?
If you are not want to hide the scrollbar for ever. Then it will help you.
Due to android:layout_height="match_parent" on listView and TextView scrollbar appears.
<LinearLayout 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:background="#drawable/background"
android:orientation="vertical" >
<ListView
android:id="#+id/listview"
android:layout_width="match_parent"
android:layout_height="wrap_content" // change 1
android:divider="#null"
android:dividerHeight="0dip" />
<TextView
android:id="#+id/empty"
android:layout_width="match_parent"
android:layout_height="wrap_content" //change 2
android:gravity="center"
android:text="#string/no_result_text"
android:visibility="gone" />
</LinearLayout>
android:scrollbars="none"
Try putting the above line in your listview in xml.
Related
I have a problem to include a ScrollView with a ConstraintLayout. How Can I mix the two? I would like to get a good resizing of the screen, but with the capability by scrolling the screen if the number of the buttons will increase.
I tried this, but without success. I used that ticket
here is the xml file:
<ScrollView
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:fillViewport="true">
<androidx.constraintlayout.widget.ConstraintLayout
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:id="#+id/homeContainer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/imagealliance"
android:backgroundTint="#80FFFFFF"
android:backgroundTintMode="src_over"
android:gravity="center"
android:theme="#style/AppTheme"
tools:context=".LoginActivity">
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:alpha="0.6"
android:scaleType="fitXY"
android:src="#drawable/logoalliance"
app:layout_constraintBottom_toTopOf="#+id/txt_login"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
</ScrollView>
Here is the code for the buttons:
public class HomeFragment extends Fragment {
...
layout.addView(eventBtn);
if (i == 0)
{
test1 = eventBtn.getId();
Log.d("test1", String.valueOf(eventBtn.getId()));
}
if (i == countUser.length() - 1)
{
test2 = eventBtn.getId();
Log.d("test2", String.valueOf(eventBtn.getId()));
}
Here is the code for the layout:
// Create ConstraintSet
ConstraintSet constraintSet = new ConstraintSet();
// Make sure all previous Constraints from ConstraintLayout are not lost
constraintSet.clone(layout2);
// Create Rule that states that the START of btn_contact_us1 will be positioned at the END of btn_contact_us2
constraintSet.connect(imageView1.getId(), ConstraintSet.START, test1, ConstraintSet.END);
constraintSet.applyTo(layout2);
Thanks in advance
Try updating your xml by following code
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
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"
tools:context=".MainActivityStack">
<ScrollView
android:layout_width="0dp"
android:layout_height="0dp"
android:fillViewport="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:alpha="0.6"
android:scaleType="fitXY"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</ScrollView>
</androidx.constraintlayout.widget.ConstraintLayout>
I am having an issue with nested scroll view when reach bottom.
Inside nestedScrollView I have a button, in bottom of page I have a input field to enter phone number. When press button, if phone number filed not filled, I want to scroll to Bottom of Activity to highlight input field.
But in my activity it scrolling only half, not scrolling till end.
I tried all beloved java codes to fix this issue, but all works same (Not reaching bottom, stops on middle).
Java Codes
CoordinatorLayout mainCoordinate = findViewById(R.id.mainCoordinate);
NestedScrollView nestedScrollView = findViewById(R.id.nestedScroll);
1.
//Scroll to bottom of view
nestedScrollView.post(new Runnable() {
#Override
public void run() {
nestedScrollView.smoothScrollTo(0, mainCoordinate.getBottom());
}
});
2.
//Scroll to bottom of view
nestedScrollView.post(new Runnable() {
#Override
public void run() {
nestedScrollView.fullScroll(View.FOCUS_DOWN);
}
});
3.
nestedScrollView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
final int scrollViewHeight = nestedScrollView.getHeight();
if (scrollViewHeight > 0) {
nestedScrollView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
final View lastView = nestedScrollView.getChildAt(nestedScrollView.getChildCount() - 1);
final int lastViewBottom = lastView.getBottom() + nestedScrollView.getPaddingBottom();
final int deltaScrollY = lastViewBottom - scrollViewHeight - nestedScrollView.getScrollY();
/* If you want to see the scroll animation, call this. */
nestedScrollView.smoothScrollBy(0, deltaScrollY);
/* If you don't want, call this. */
nestedScrollView.scrollBy(0, deltaScrollY);
}
}
});
XML Codes
<?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"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/mainCoordinate"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/colorPrimary"
tools:ignore="RtlHardcoded">
<android.support.design.widget.AppBarLayout
android:id="#+id/flexibleAppbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
android:visibility="invisible">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/flexible.example.collapsing"
android:layout_width="match_parent"
android:layout_height="258dp"
app:contentScrim="?colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:id="#+id/imageMain"
android:layout_width="match_parent"
android:layout_height="258dp"
android:foreground="#drawable/ripple_effect_circle_card"
android:src="#drawable/back_button_white" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:id="#+id/nestedScroll"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="visible"
app:behavior_overlapTop="48dp"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<LinearLayout
android:id="#+id/main"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clickable="true"
android:fitsSystemWindows="true"
android:focusable="true"
android:focusableInTouchMode="true"
android:orientation="vertical">
<android.support.v7.widget.CardView
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:id="#+id/price.card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_anchorGravity="bottom"
card_view:cardBackgroundColor="#color/card_back"
card_view:cardCornerRadius="4dp"
card_view:contentPadding="8dp">
.........................
.........................
.........................
//My Other All Views
.........................
.........................
.........................
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:id="#+id/profile.card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_anchorGravity="bottom"
card_view:cardBackgroundColor="#color/card_back"
card_view:cardCornerRadius="4dp"
card_view:contentPadding="8dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="start"
android:padding="5dp"
android:text="Phone No." />
<EditText
android:id="#+id/etPhone"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:gravity="end"
android:hint="Enter your phone"
android:inputType="phone"
android:text=""/>
</RelativeLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
<Button
android:id="#+id/btnBookNow"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Button"/>
</android.support.design.widget.CoordinatorLayout>
I attached a video that explains my exact problem link
Please, Does anyone having a better way or other suggestion to fix this issue?
Thanks in Advance
Pls try Android layout inspector to check height of your NestedScroll.
Try to add
android:layout_gravity="bottom|center" to Button.
In NestedScrollView set layout heigh to android:layout_height="wrap_content"
I am working on android Tv, In our Fragment there the two Horizontal Recyclerview, when I scroll First Recyclerview using D-pad in Right direction, it scrolls well and when I come to last focus item of its Recycler view, Focus automatically goes down to second Recycler view item.
How to prevent this?
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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="wrap_content"
android:focusable="false"
android:orientation="vertical">
<RelativeLayout
android:id="#+id/firstRelativeGrid"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:focusable="false"
android:orientation="vertical">
<android.support.v7.widget.RecyclerView
android:id="#+id/gridView1"
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_alignParentEnd="true"
android:layout_alignParentStart="true"
android:clipToPadding="false"
android:focusable="false"
android:paddingLeft="0dp"
android:paddingRight="755dp" />
<android.support.v7.widget.RecyclerView
android:id="#+id/gridView2"
android:layout_width="155dp"
android:layout_height="200dp"
android:layout_alignBaseline="#+id/gridView1"
android:layout_marginLeft="0dp"
android:focusable="false"
android:nextFocusRight="#null"
android:nextFocusUp="#+id/home_textview" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/secondRelativeGrid"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:focusable="false"
android:focusableInTouchMode="false"
android:orientation="vertical">
<android.support.v17.leanback.widget.MyHorizontalGridView
android:id="#+id/gridView3"
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_alignParentEnd="true"
android:layout_alignParentStart="true"
android:clipToPadding="false"
android:focusable="false"
android:paddingLeft="0dp"
android:paddingRight="754dp" />
<android.support.v17.leanback.widget.MyHorizontalGridView
android:id="#+id/gridView4"
android:layout_width="155dp"
android:layout_height="200dp"
android:layout_alignBaseline="#+id/gridView3"
android:layout_marginLeft="0dp"
android:clipToPadding="false"
android:descendantFocusability="blocksDescendants"
android:focusable="false"
android:paddingLeft="0dp"
android:paddingRight="-2dp"
/>
</RelativeLayout>
It might be late but for any one still looking for solution:
You should write your own logic while searching for next focus happens and supply the last view as next focus item if in the end of list OR you may modify the logic according to your needs. For Ex:
override fun onInterceptFocusSearch(focused: View?, direction: Int): View? {
val position = getPosition(focused)
val count = itemCount
lastKnownPosition = position
return if (position == count - 1 && direction == View.FOCUS_RIGHT) {
focused
} else {
super.onInterceptFocusSearch(focused, direction)
}
}
And this method will be part of your layout manager.
try setting the focusable attribute of the recyclerview to false
recyclerview.setFocusable(false);
I am posting this answer very late , but there is one way you can do it is , in Adapter class check if the item is first , and set the nextFocusLeftId to itself.
for example.
itemview.setnextFocusLeftId(itemview.gedId)
do the same for the last element of the recycler view.
I want to have a dialog with buttons
whenever i click on a specific button, I want the dialog to "flip" and show another layout. A click on another button will return to the original dialog's view.
I try to use ViewFlipper as follows:
xmls:
send_feedback_dialog.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:id="#+id/TextView01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/feedback" />
</LinearLayout>
...
social_actions_dialog.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/main_activity_root"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#android:color/transparent" >
<ViewFlipper
android:id="#+id/viewFlipper"
android:layout_width="300dp"
android:layout_height="407dp"/>
<RelativeLayout
android:id="#+id/main_activity_card_face"
android:layout_width="300dp"
android:layout_height="407dp"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:background="#android:color/white"
android:clickable="true"
android:onClick="onCardClick"
android:padding="5dp" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical" >
...
code:
final ViewFlipper viewFlipper = (ViewFlipper) mDialog
.findViewById(R.id.viewFlipper);
View feedbackview = View.inflate(mContext,
R.layout.send_feedback_dialog, viewFlipper);
// ((ViewGroup)
// feedbackview.getParent()).removeView(feedbackview);
// viewFlipper.addView(feedbackview);
// View socialActions = View.inflate(mContext,
// R.layout.social_actions_dialog, viewFlipper);
// ((ViewGroup) socialActions.getParent())
// .removeView(socialActions);
// viewFlipper.addView(socialActions);
private void flipDialog(ViewFlipper viewFlipper,
boolean isSocialActionsShown, AlphaAnimation alphaIn,
AlphaAnimation alphaOut) {
if (isSocialActionsShown) {
isSocialActionsShown = false;
viewFlipper.setInAnimation(alphaIn);
viewFlipper.setOutAnimation(alphaOut);
// Show the next Screen
viewFlipper.showNext();
} else {
isSocialActionsShown = true;
viewFlipper.setInAnimation(alphaIn);
viewFlipper.setOutAnimation(alphaOut);
viewFlipper.showPrevious();
}
}
I used to get java.lang.StackOverflowError and then i have commented some rows and now the flip is executed but nothing changes.
how can i make it properly work?
what is the right way to organize the dialog layout in different files?
i have tried to create the dialog in a different file but it requires many things and maybe it's better to use it as an inner class
I try to make a ScrollView to act like a ListView. So every row will be a TextView added dynamically. but the program crashes. I have a ScrollView inside a LinearLayout. What i do wrong? Thanks.
Here is my code
scroll = (ScrollView)findViewById(R.id.scrollView1);
layout = (LinearLayout) findViewById(R.id.LinearLayout1);
layout.setBackgroundColor(Color.TRANSPARENT);
TextView[] tx = new TextView[10];
for (int i = 0; i < 10; i++) {
tx[i] = new TextView(HelloWorldActivity.this);
tx[i].setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
tx[i].setText("This is the textviewNo" + i);
layout.addView(tx[i]);
}
scroll.addView(layout);
XML:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/RelativeLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center_horizontal"
android:orientation="vertical" >
<TextView
android:id="#+id/timeflag"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Large Text"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textSize="50sp"
android:gravity="center"/>
<Button
android:id="#+id/pause"
android:layout_width="match_parent"
android:layout_height="100dp"
android:layout_alignParentLeft="true"
android:layout_below="#+id/timeflag"
android:layout_marginTop="37dp"
android:text="Start" />
<LinearLayout
android:id="#+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentLeft="true"
android:layout_below="#+id/pause"
android:orientation="vertical" >
<ScrollView
android:id="#+id/scrollView1"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</ScrollView>
</LinearLayout>
</RelativeLayout>
A scrollView Can only have one child. If you try to add more than 1 child to the scroll view then it will crash. You should have the LinearLayout inside of the scrollview and then dynamically add textViews to the linear layout.
You are trying to add LinearLayout1 as its own child's child (being your own grandfather, is a confusing notion).
Change you XML around like this:
<ScrollView
android:id="#+id/scrollView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentLeft="true"
android:layout_below="#+id/pause"
>
<LinearLayout
android:id="#+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
</LinearLayout>
</ScrollView>
You cannot add views to a scrollview. You can only add them to a viewgroup, like linear or relativelayout.
It is not exactly clear what you are trying to achieve, but what is wrong with using a listview for this? You could set a max height on the listview. Or you could try wdziemia's suggestion