Listview not scrolling untill the last Item

Listview not scrolling untill the last Item - java

Hello there I am have having problem scrolling untill the last item scrolling stops in the middle, here is my layout code.
<RelativeLayout 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"
tools:context="fragment.Equivalent">
<ListView
android:id="#+id/listView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="visible"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true"
android:focusable="false"/>
<TextView
android:id="#+id/txt404"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="Message that will be shown if the listview is empty"
android:textSize="21dp"
android:textStyle="bold"
android:visibility="invisible" />
</RelativeLayout>

Try with a scroll view:
<RelativeLayout 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"
tools:context="fragment.Equivalent">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:scrollbarStyle="insideOverlay"
style="#android:style/Widget.Holo.ScrollView">
<TableLayout
android:id="#+id/table_layout_id"
android:layout_width="match_parent"
android:layout_height="match_parent">
</TableLayout>
</ScrollView>
</RelativeLayout>
in java file, do this:
TableLayout ll = (TableLayout) findViewById(R.id.table_layout_id);
TableRow row = new TableRow(this); TableRow.LayoutParams lp = new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT); row.setLayoutParams(lp);
    butt = new Button(this);  //You can add button too, FYI
butt.setText("TEST");     TextView tv = (TextView) findViewById(R.id.txt404);
 tv.setText("Text view"); tv2 = new TextView(this);  //your job: add list view here
tv2.setText("Text View 2");     row.addView(butt);
  row.addView(tv1); row.addView(tv2);   ll.addView(row, i); // where i is the row number, increment on addition

Solution was changing the layout to a constraint layout and changing the size of the listview
<android.support.constraint.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="fragment">
<ListView
android:id="#+id/listView"
android:layout_width="399dp"
android:layout_height="485dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="0dp"
android:focusable="false"
android:visibility="visible"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:layout_constraintLeft_creator="1"
tools:layout_constraintTop_creator="1"
app:layout_constraintBottom_toBottomOf="parent"
android:layout_marginBottom="8dp"
app:layout_constraintVertical_bias="0.0" />
<TextView
android:id="#+id/txt404"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textSize="21dp"
android:textStyle="bold"
android:visibility="invisible"
tools:layout_constraintTop_creator="1"
tools:layout_constraintRight_creator="1"
tools:layout_constraintBottom_creator="1"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintRight_toRightOf="parent"
tools:layout_constraintLeft_creator="1"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintHorizontal_bias="0.503"
app:layout_constraintVertical_bias="0.391" />
</android.support.constraint.ConstraintLayout>

Related

Hello ,my app crashes every time I invoke Spinner which exists in a Fragment called "Firstfragment"

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//This Spinner is not located in the MainActivity but in A fragment
Spinner s = (Spinner) findViewById(R.id.spinner33);
s.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
String msupplier=s.getSelectedItem().toString();
Log.e("Selected item : ", msupplier);
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
//Main MainActivity
<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout 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=".MainActivity"
android:id="#+id/drawer">
<include
layout="#layout/content_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<com.google.android.material.navigation.NavigationView
android:id="#+id/nav_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start"
android:layout_marginTop="104dp"
app:headerLayout="#layout/nav_header"
app:menu="#menu/nav_menu" />
</androidx.drawerlayout.widget.DrawerLayout>
//first Fragment
<?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:id="#+id/Fragment1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#2196F3"
tools:context=".MainActivity">
<ImageView
android:id="#+id/imageView4"
android:layout_width="match_parent"
android:layout_height="773dp"
android:src="#mipmap/background"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<LinearLayout
android:id="#+id/linearLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/teal_700"
android:orientation="horizontal"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<Button
android:id="#+id/watBtn"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:clickable="true"
android:drawableTop="#drawable/ic_baseline_looks_one_24"
android:editable="true"
android:enabled="true"
android:focusable="auto"
android:gravity="center"
android:includeFontPadding="true"
android:linksClickable="true"
android:onClick="WattMthd"
android:text="#string/WAT"
app:backgroundTint="#android:color/holo_blue_dark"
tools:layout_editor_absoluteX="35dp"
tools:layout_editor_absoluteY="129dp" />
<Button
android:id="#+id/ampBtn"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:drawableTop="#drawable/ic_baseline_looks_two_24"
android:editable="true"
android:gravity="center"
android:onClick="ampMthd"
android:text="#string/AMP"
android:textColorLink="#FFFFFF"
app:backgroundTint="#android:color/darker_gray" />
<Button
android:id="#+id/voltBtn"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:drawableTop="#drawable/ic_baseline_looks_3_24"
android:editable="true"
android:gravity="center"
android:onClick="voltMthd"
android:text="فولت"
app:backgroundTint="#android:color/holo_blue_dark" />
<Button
android:id="#+id/kWbtn"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:drawableTop="#drawable/ic_baseline_looks_4_24"
android:editable="true"
android:gravity="center"
android:onClick="kWMthd"
android:text="كيلو"
app:backgroundTint="#android:color/holo_blue_dark" />
</LinearLayout>
<Spinner
android:id="#+id/spinner33"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/darker_gray"
android:dropDownWidth="match_parent"
android:entries="#array/SpinerConvertFrom"
android:foreground="#drawable/ic_baseline_arrow_drop_down_circle_24"
android:foregroundGravity="left|center"
android:gravity="center"
android:textAlignment="center"
android:visibility="visible"
app:flow_verticalAlign="center"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/linearLayout" />
<com.google.android.material.textfield.TextInputLayout
android:id="#+id/textInputLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/spinner33">
<com.google.android.material.textfield.TextInputEditText
android:id="#+id/Text1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="#string/AMP"
android:inputType="numberDecimal"
android:selectAllOnFocus="true"
android:textAlignment="center" />
</com.google.android.material.textfield.TextInputLayout>
<com.google.android.material.textfield.TextInputLayout
android:id="#+id/textInputLayout3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/textInputLayout">
<com.google.android.material.textfield.TextInputEditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="#string/Volt"
android:inputType="numberDecimal"
android:selectAllOnFocus="true"
android:textAlignment="center" />
</com.google.android.material.textfield.TextInputLayout>
</androidx.constraintlayout.widget.ConstraintLayout>

If you are calling the spinner initialization from the fragment but it exists in the main activity it will crash, you need to call it in the activity, or move it to the xml of the framgnet.

activity_main belongs to MainActivity. So there is a fragment_first which belongs to FirstFragment. The spinner you are trying to initialize belongs to fragment_first, so you have to use it inside FirstFragment or move it (spinner) to activity_main

Hi bro inside you activity_main.xml you didn't define spinner, so you can't get view which you didn't create in your xml file, you can get it from your fragment, or you must move Spinner to activity_main.xml.

How to push recyclerview below (behind) AppbarLayout on scroll collapsed

I want to achieve something not usual for a AppBarLayout + Recyclerview scrollingviewbehavior effect.
I want to make the recyclerview move with AppBarLayout and go behind AppBarLayout when user scrolls. I need it to be really behind AppBarlayout because the background of AppbarLayout will be half transparent so recyclerview will be visible.
I don't know how to do this.
I did try multiple variants of ScrollViewBehavior.
I did try also setting negative values to SwipeRefreshlayout topMaring and change this value during scroll. Values where provided from AppBarLayout.addOnOffsetChangedListener from given i "vertical scroll offset". The result was that the swipeRefreshLayout flickered during scroll and during going behind AppBarLayout.
Please help me with this. I have no more options left.
<androidx.coordinatorlayout.widget.CoordinatorLayout
android:id="#+id/clRootMain"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:animateLayoutChanges="false"
android:background="#color/backgroundGray">
<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
android:id="#+id/srlSwipeRefresh"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/transparent"
android:isScrollContainer="true"
app:layout_behavior=".Util.View.ScrollingViewOverlapBehavior">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/rvList"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipChildren="false"
android:divider="#android:color/transparent"
android:dividerHeight="#dimen/dp5"
android:drawSelectorOnTop="true"
android:fadeScrollbars="true"
android:fadingEdge="none"
android:fadingEdgeLength="#dimen/dp0"
android:gravity="center"
android:isScrollContainer="true"
android:nestedScrollingEnabled="true"
android:overScrollMode="never"
android:paddingLeft="#dimen/list_margin"
android:paddingRight="#dimen/list_margin"
android:scrollbarAlwaysDrawVerticalTrack="true"
android:scrollbarSize="#dimen/dp4"
android:scrollbarStyle="outsideOverlay"
android:scrollbars="vertical"
android:smoothScrollbar="false"
app:fastScrollEnabled="true"
app:fastScrollHorizontalThumbDrawable="#drawable/scrollbar_draggable"
app:fastScrollHorizontalTrackDrawable="#drawable/scrollbar_track_line"
app:fastScrollVerticalThumbDrawable="#drawable/scrollbar_draggable"
app:fastScrollVerticalTrackDrawable="#drawable/scrollbar_track_line" />
<TextView
android:id="#+id/tvEmptyListText"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginLeft="#dimen/dp20"
android:layout_marginTop="#dimen/dp10"
android:layout_marginRight="#dimen/dp20"
android:alpha="0.5"
android:gravity="center"
android:text="#string/category_product_list_empty"
android:textColor="#color/textGreyDark"
android:visibility="gone" />
</LinearLayout>
</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
<com.google.android.material.appbar.AppBarLayout
android:id="#+id/ablMain"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#80ffffff"
android:fitsSystemWindows="true"
android:orientation="vertical"
app:liftOnScroll="false">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
android:orientation="vertical"
app:layout_scrollFlags="scroll|enterAlwaysCollapsed|exitUntilCollapsed">
<LinearLayout
android:id="#+id/llOpenOrderListContainer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:visibility="gone">
<TextView
android:id="#+id/tvOpenOrdersTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="#dimen/dp10"
android:layout_marginTop="#dimen/dp15"
android:alpha="0.6"
android:clickable="false"
android:gravity="center|left"
android:singleLine="true"
android:text="#string/current_orders_title"
android:textAllCaps="true"
android:textAppearance="#style/TextAppearance.AppCompat.Body2"
android:textColor="#color/textColor"
android:textSize="#dimen/sp10"
android:textStyle="normal" />
<androidx.viewpager.widget.ViewPager
android:id="#+id/vpOpenOrderList"
android:layout_width="match_parent"
android:layout_height="#dimen/dp75"
android:background="#android:color/transparent"
android:visibility="visible" />
</LinearLayout>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<RelativeLayout
android:id="#+id/rlTopContainer"
android:layout_width="match_parent"
android:layout_height="0dp"
android:background="#android:color/white"
app:layout_constraintDimensionRatio="H,16:9"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.viewpager.widget.ViewPager
android:id="#+id/vpBannerPager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/transparent" />
<RelativeLayout
android:id="#+id/rlControlContainer"
android:layout_width="#dimen/dp100"
android:layout_height="#dimen/dp30"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="#dimen/dp15"
android:background="#android:color/transparent">
<com.google.android.material.tabs.TabLayout
android:id="#+id/tlBannerDots"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerInParent="true"
app:tabBackground="#drawable/tab_selector_images"
app:tabGravity="center"
app:tabIndicatorHeight="0dp"
app:tabMinWidth="#dimen/dp3"
app:tabMode="fixed" />
</RelativeLayout>
<ImageView
android:id="#+id/ivHalfCircleBackgroundWithStroke"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentBottom="true"
android:layout_marginTop="#dimen/dp50"
android:scaleType="fitXY"
app:srcCompat="#drawable/ic_bottom_arc"
/>
</RelativeLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
</LinearLayout>
<RelativeLayout
android:id="#+id/rlCategoryContainer"
android:layout_width="match_parent"
android:layout_height="#dimen/dp75"
android:background="#android:color/transparent">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/rvCategoryList"
android:layout_width="wrap_content"
android:layout_height="#dimen/dp70"
android:layout_above="#+id/llSeparatorLine"
android:layout_centerHorizontal="true"
android:clipChildren="false"
android:divider="#android:color/white"
android:dividerHeight="#dimen/dp10"
android:drawSelectorOnTop="true"
android:fadeScrollbars="true"
android:fastScrollEnabled="false"
android:gravity="center"
android:isScrollContainer="true"
android:nestedScrollingEnabled="true"
android:overScrollMode="never"
android:scrollIndicators="none"
android:scrollbars="none" />
<LinearLayout
android:id="#+id/llSeparatorLine"
android:layout_width="match_parent"
android:layout_height="#dimen/dp1"
android:layout_alignParentBottom="true"
android:background="#drawable/grey_line_with_fading_edges_light"
android:orientation="horizontal" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/rlBottomDownArcContainer"
android:layout_width="match_parent"
android:layout_height="#dimen/dp40"
android:background="#android:color/transparent">
<TextView
android:id="#+id/tvSectionName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:background="#android:color/transparent"
android:clickable="false"
android:gravity="center_horizontal|top"
android:singleLine="true"
android:text="KWIATY"
android:textAllCaps="true"
android:textAppearance="#style/TextAppearance.AppCompat.Body1"
android:textColor="#color/textGrey"
android:textSize="#dimen/sp12"
android:textStyle="bold" />
</RelativeLayout>
</com.google.android.material.appbar.AppBarLayout>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/fabFilter"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_marginLeft="#dimen/dp5"
android:layout_marginTop="#dimen/dp5"
android:layout_marginRight="#dimen/dp10"
android:layout_marginBottom="#dimen/dp10"
android:elevation="#dimen/dp4"
android:stateListAnimator="#animator/lift_on_touch"
android:visibility="visible"
app:backgroundTint="#android:color/white"
app:borderWidth="0dp"
app:elevation="4dp"
app:fabSize="normal"
app:rippleColor="#color/colorAccent"
app:srcCompat="#drawable/ic_icon_filtr_black" />
<!--</RelativeLayout>-->
</androidx.coordinatorlayout.widget.CoordinatorLayout>
public class ScrollingViewOverlapBehavior extends AppBarLayout.ScrollingViewBehavior {
public ScrollingViewOverlapBehavior() {
super();
}
public ScrollingViewOverlapBehavior(Context context, AttributeSet attrs) {
super(context, attrs);
}
#Override
public boolean onDependentViewChanged(CoordinatorLayout parent, View child,
View dependency) {
super.onDependentViewChanged(parent, child, dependency);
child.setTranslationY(dependency.getY());
return false;
}
}
This is what I have achieved so far but it leaves space at the bottom. I am using setTranslationY on my custom ScrollingViewBehavior (ScrollingViewOverlapBehavior).
https://drive.google.com/open?id=12Ri87BGKmAmwNq_rC-wpmCcYZyansmGl

Android - How do I expand the height of a view from bottom to top?

I'm trying to make a visualization of some data in Android using a vertical bar chart, but when I increase or decrease the height of a View programatically by clicking a button, it changes from top to bottom, as in the image below (default value is 300).
How do I change the height from bottom to top, ie keeping the base of the view fixed?
Expected result:
My code in Java:
public final class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.setContentView(R.layout.activity_main);
}
#Override
public void onWindowFocusChanged(boolean hasFocus) {
super.onWindowFocusChanged(hasFocus);
LinearLayout layoutXAxis = (LinearLayout)this.findViewById(R.id.layoutX);
LinearLayout layoutYAxis = (LinearLayout)this.findViewById(R.id.layoutY);
LinearLayout layoutZAxis = (LinearLayout)this.findViewById(R.id.layoutZ);
TextView txtXAxis = (TextView)layoutXAxis.findViewById(R.id.txtXAxis);
TextView txtYAxis = (TextView)layoutYAxis.findViewById(R.id.txtYAxis);
TextView txtZAxis = (TextView)layoutZAxis.findViewById(R.id.txtZAxis);
View graphXAxis = (View)layoutXAxis.findViewById(R.id.XAxis);
View graphYAxis = (View)layoutYAxis.findViewById(R.id.YAxis);
View graphZAxis = (View)layoutZAxis.findViewById(R.id.ZAxis);
LinearLayout layoutBtnAdd = (LinearLayout)this.findViewById(R.id.layAdd);
Button btnAddX = (Button)layoutBtnAdd.findViewById(R.id.btnXAdd);
Button btnAddY = (Button)layoutBtnAdd.findViewById(R.id.btnYAdd);
Button btnAddZ = (Button)layoutBtnAdd.findViewById(R.id.btnZAdd);
LinearLayout layoutBtnSub = (LinearLayout)this.findViewById(R.id.laySub);
Button btnSubX = (Button)layoutBtnSub.findViewById(R.id.btnXSub);
Button btnSubY = (Button)layoutBtnSub.findViewById(R.id.btnYSub);
Button btnSubZ = (Button)layoutBtnSub.findViewById(R.id.btnZSub);
txtXAxis.setText(String.valueOf(graphXAxis.getLayoutParams().height));
txtYAxis.setText(String.valueOf(graphYAxis.getLayoutParams().height));
txtZAxis.setText(String.valueOf(graphZAxis.getLayoutParams().height));
btnAddX.setOnClickListener((OnClickListener)(new OnClickListener() {
public final void onClick(View it) {
View graph = graphXAxis;
LayoutParams params = graph.getLayoutParams();
params.height += 10;
graph = graphXAxis;
graph.setLayoutParams(params);
TextView text = txtXAxis;
View graph = graphXAxis;
text.setText(String.valueOf(graph.getLayoutParams().height));
}
}));
... // onClickListener of the other buttons
}
My code in 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"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:context=".MainActivity">
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:id="#+id/layoutY">
<TextView
android:id="#+id/txtYAxis"
android:layout_gravity="center"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:textAlignment="center"
android:text="Y AXIS"
android:textStyle="bold"
android:textSize="18sp"
android:textColor="#android:color/holo_blue_light"/>
...
<View android:id="#+id/YAxis"
android:layout_width="75dp"
android:layout_height="200dp"
android:background="#android:color/holo_blue_dark"/>
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/layoutX"
android:layout_toLeftOf="#id/layoutY"
android:layout_toStartOf="#id/layoutY"
android:layout_marginRight="50dp"
android:layout_marginEnd="50dp">
<TextView
android:id="#+id/txtXAxis"
android:layout_gravity="center"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:textAlignment="center"
android:text="X AXIS"
android:textStyle="bold"
android:textSize="18sp"
android:textColor="#android:color/holo_red_light"/>
...
<View android:id="#+id/XAxis"
android:layout_width="75dp"
android:layout_height="200dp"
android:background="#android:color/holo_red_dark"/>
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/layoutZ"
android:layout_toRightOf="#id/layoutY"
android:layout_toEndOf="#id/layoutY"
android:layout_marginLeft="50dp"
android:layout_marginStart="50dp">
<TextView
android:id="#+id/txtZAxis"
android:layout_gravity="center"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:textAlignment="center"
android:text="Z AXIS"
android:textStyle="bold"
android:textSize="18sp"
android:textColor="#android:color/holo_green_light"/>
...
<View android:id="#+id/ZAxis"
android:layout_width="75dp"
android:layout_height="200dp"
android:background="#android:color/holo_green_dark"/>
</LinearLayout>
...
</RelativeLayout>

You might consider constructing your layout like the following.
<?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:layout_width="match_parent"
android:layout_height="wrap_content"
tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/button_layout"
android:orientation="horizontal">
<LinearLayout
android:id="#+id/layoutY"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_weight="1"
android:orientation="vertical">
<TextView
android:id="#+id/txtYAxis"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:text="Y AXIS"
android:textColor="#android:color/holo_blue_light"
android:textSize="18sp"
android:textStyle="bold" />
<View
android:id="#+id/YAxis"
android:layout_width="match_parent"
android:layout_height="100dp"
android:layout_marginLeft="30dp"
android:layout_marginRight="30dp"
android:background="#android:color/holo_blue_dark"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:id="#+id/layoutX"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical|bottom"
android:layout_weight="1"
android:orientation="vertical">
<TextView
android:id="#+id/txtXAxis"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="X AXIS"
android:textAlignment="center"
android:textColor="#android:color/holo_red_light"
android:textSize="18sp"
android:textStyle="bold" />
<View
android:id="#+id/XAxis"
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_marginLeft="30dp"
android:layout_marginRight="30dp"
android:background="#android:color/holo_red_dark" />
</LinearLayout>
<LinearLayout
android:id="#+id/layoutZ"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical|bottom"
android:layout_weight="1"
android:orientation="vertical">
<TextView
android:id="#+id/txtZAxis"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Z AXIS"
android:textAlignment="center"
android:textColor="#android:color/holo_green_light"
android:textSize="18sp"
android:textStyle="bold" />
<View
android:id="#+id/ZAxis"
android:layout_width="match_parent"
android:layout_height="150dp"
android:layout_marginLeft="30dp"
android:layout_marginRight="30dp"
android:background="#android:color/holo_green_dark" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:id="#+id/button_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1" />
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1" />
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1" />
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1" />
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>
</LinearLayout>
</RelativeLayout>
Here is the output.
Hope that helps!

How to set dynamically weight to LinearLayout? [duplicate]

This question already has answers here:
Dynamically changing the linearlayout width or height on Android
(4 answers)
Closed 4 years ago.
In my application I want set dynamically weight to LinearLayout and for this I write below codes, but when running application show me Force close error!
Force close message in logCat :
java.lang.ClassCastException: android.widget.LinearLayout$LayoutParams cannot be cast to android.widget.RelativeLayout$LayoutParams
My XML codes :
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:background="#color/white"
tools:context=".activity.UpdateActivity">
<!--Header-->
<RelativeLayout
android:id="#+id/dialogEndCount_headerLay"
android:layout_width="match_parent"
android:layout_height="#dimen/size120"
android:background="#color/tabHomeColor">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_marginTop="#dimen/size40"
android:text="#string/updateDialogTitle"
android:textColor="#color/white"
android:textSize="#dimen/font16" />
<com.airbnb.lottie.LottieAnimationView
android:id="#+id/dialogUpdate_animate"
android:layout_width="#dimen/size150"
android:layout_height="#dimen/size150"
android:layout_alignParentLeft="true"
android:layout_centerInParent="true"
android:layout_marginLeft="#dimen/size20"
app:lottie_autoPlay="true"
app:lottie_colorFilter="#color/white"
app:lottie_fileName="update.json"
app:lottie_loop="true" />
</RelativeLayout>
<!--Content-->
<RelativeLayout
android:id="#+id/dialogEndCount_contentLay"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/dialogEndCount_buttonsLay"
android:layout_below="#+id/dialogEndCount_headerLay"
android:layout_marginBottom="#dimen/size10"
android:layout_marginTop="#dimen/size10"
android:background="#drawable/bg_dialog_vip_white">
<!--Type-->
<TextView
android:id="#+id/dialogUpdate_infoTypeTxt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_marginLeft="#dimen/size15"
android:layout_marginRight="#dimen/size15"
android:layout_marginTop="#dimen/size10"
android:gravity="center_vertical"
android:text="نوع بروز رسانی : اجباری"
android:textColor="#color/black"
android:textSize="#dimen/font14" />
<!--Content-->
<ScrollView
android:id="#+id/dialogUpdate_infoContentScrollLay"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/dialogUpdate_downloadProgress"
android:layout_alignRight="#+id/dialogUpdate_infoTypeTxt"
android:layout_below="#+id/dialogUpdate_infoTypeTxt"
android:layout_marginLeft="#dimen/size15"
android:layout_marginTop="#dimen/size20">
<RelativeLayout
android:id="#+id/dialogUpdate_infoContentLay"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/dialogUpdate_infoContentTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:gravity="center_vertical"
android:text="#string/updateContent"
android:textColor="#color/black"
android:textSize="#dimen/font14" />
<TextView
android:id="#+id/dialogUpdate_infoContentTxt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="#+id/dialogUpdate_infoContentTitle"
android:layout_marginTop="#dimen/size5"
android:gravity="center_vertical"
android:textColor="#color/favColorON"
android:textSize="#dimen/font14" />
</RelativeLayout>
</ScrollView>
<!--Download layout-->
<com.tellfa.colony.view.DownloadProgressView
android:id="#+id/dialogUpdate_downloadProgress"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignRight="#+id/dialogUpdate_infoTypeTxt"
android:layout_marginLeft="#dimen/size15"
android:layout_marginTop="#dimen/size10" />
</RelativeLayout>
<!--Buttons-->
<LinearLayout
android:id="#+id/dialogEndCount_buttonsLay"
android:layout_width="match_parent"
android:layout_height="#dimen/size60"
android:layout_alignParentBottom="true"
android:orientation="horizontal"
android:weightSum="3">
<!--Cancel-->
<android.support.v7.widget.CardView
android:id="#+id/dialogUpdate_cancelBtn"
android:layout_width="#dimen/margin_0dp"
android:layout_height="#dimen/size50"
android:layout_marginBottom="#dimen/size5"
android:layout_marginLeft="#dimen/size5"
android:layout_marginRight="#dimen/size5"
android:layout_marginTop="#dimen/size5"
android:layout_weight="1"
app:cardBackgroundColor="#color/red"
app:cardCornerRadius="#dimen/size3"
app:cardElevation="#dimen/size3">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<ImageView
android:id="#+id/dialogUpdate_cancelBtnImg"
android:layout_width="#dimen/size25"
android:layout_height="#dimen/size25"
android:layout_centerVertical="true"
android:layout_marginLeft="#dimen/size5"
android:src="#drawable/ic_close"
android:tint="#color/white" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_toRightOf="#+id/dialogUpdate_cancelBtnImg"
android:ellipsize="end"
android:gravity="center"
android:singleLine="true"
android:text="#string/updateCancel"
android:textColor="#color/white"
android:textSize="#dimen/font14" />
</RelativeLayout>
</android.support.v7.widget.CardView>
<!--Direct-->
<android.support.v7.widget.CardView
android:id="#+id/dialogUpdate_directBtn"
android:layout_width="#dimen/margin_0dp"
android:layout_height="#dimen/size50"
android:layout_marginBottom="#dimen/size5"
android:layout_marginLeft="#dimen/size5"
android:layout_marginRight="#dimen/size5"
android:layout_marginTop="#dimen/size5"
android:layout_weight="1"
app:cardBackgroundColor="#color/green"
app:cardCornerRadius="#dimen/size3"
app:cardElevation="#dimen/size2">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<ImageView
android:id="#+id/dialogUpdate_directBtnImg"
android:layout_width="#dimen/size25"
android:layout_height="#dimen/size25"
android:layout_centerVertical="true"
android:layout_marginLeft="#dimen/size5"
android:src="#drawable/appro_ic_download_circle"
android:tint="#color/white" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_toRightOf="#+id/dialogUpdate_directBtnImg"
android:ellipsize="end"
android:gravity="center"
android:layout_marginRight="#dimen/size1"
android:singleLine="true"
android:text="#string/updateOK"
android:textColor="#color/white"
android:textSize="#dimen/font12" />
</RelativeLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
</RelativeLayout>
My JAVA codes:
public class UpdateActivity extends BaseActivity {
#BindView(R.id.dialogEndCount_buttonsLay)
LinearLayout dialogEndCount_buttonsLay;
private Window window;
private Activity activity;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_update);
//Initialize
ButterKnife.bind(this);
activity = this;
window = activity.getWindow();
//Set color to statusBar
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
window.setStatusBarColor(getResources().getColor(R.color.tabHomeColor));
}
//Set dynamically weight
dialogEndCount_buttonsLay.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT));
}
}
How can I fix this problem?

If you want set dynamically weightSum just use this code :
dialogEndCount_buttonsLay.setWeightSum(3f);
i hope help you

You're mixing LinearLayout and RelativeLayout. Change your layout to use a LinearLayout then weight is an available property on your LayoutParams.
val params = LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT)
params.weight = 1f

Increasing scrollview by adding buttons in a relativelayout (or linearlayout ) from bottom to top

Could really use some help with this one.
I'm trying to start with a single button at the bottom of my screen. When my counter++ button is clicked, a second button will be dynamically created above the button at the bottom of the screen. I was able to get this far, the problem is that the height of my scrollview doesn't increase when my buttons reach the top of the screen. Please see my example below.
Example
I'm assuming the scrollview only increases when items are added below the current view although if that's the case, is there no way I can create several buttons starting at the bottom going upwards?
Here my code.
XML:
<RelativeLayout 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="wrap_content"
android:layout_height="wrap_content"
tools:context="com.example.bbetzner.ttt.Map">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
>
<RelativeLayout
android:id="#+id/layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<Button
android:id="#+id/count"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="count++"
/>
<Button
android:id="#+id/floor0"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="0"
/>
</RelativeLayout>
</ScrollView>
</RelativeLayout>
Java:
public void addfloor(){
Button myButton = new Button(this);
myButton.setText(""+floor);
margincount += 100;
RelativeLayout ll = findViewById(R.id.layout);
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
lp.addRule(RelativeLayout.ABOVE, R.id.floor0);
lp.addRule(RelativeLayout.CENTER_HORIZONTAL);
lp.bottomMargin = margincount;
ll.addView(myButton, lp);
}
I've also tried doing this in a linear layout to see if the scrollview would increase but I couldn't figure out how to stack buttons from bottom to top in a linear layout. :S
Thanks in advance, yall are awesome!

#Texas use below code using that you are achieving what you want:
<RelativeLayout 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="wrap_content"
android:layout_height="wrap_content">
<LinearLayout
android:id="#+id/layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<Button
android:id="#+id/count"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="count++" />
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
android:scrollbars="vertical">
<LinearLayout
android:id="#+id/lladdViews"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:gravity="bottom"
android:orientation="vertical">
<Button
android:id="#+id/floor0"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:text="0" />
</LinearLayout>
</ScrollView>
</LinearLayout>
and here is Java File:
public class SampleActivity extends Activity {
LinearLayout lladdViews;
Button count;
int floor = 0;
private int margincount = 0;
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.sample_activity);
lladdViews = (LinearLayout) findViewById(R.id.lladdViews);
count = (Button) findViewById(R.id.count);
count.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
addfloor();
}
});
}
public void addfloor() {
Button myButton = new Button(this);
myButton.setText("" + floor);
margincount += 10;
RelativeLayout ll = new RelativeLayout(this);
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
lp.addRule(RelativeLayout.ABOVE, R.id.floor0);
lp.addRule(RelativeLayout.CENTER_HORIZONTAL);
lp.bottomMargin = margincount;
ll.addView(myButton, lp);
lladdViews.addView(ll);
}
}

Here is your designing part happy coding.....
<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="match_parent"
android:orientation="vertical"
>
<LinearLayout
android:id="#+id/layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
>
<Button
android:id="#+id/count"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="count++"
/>
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
>
<LinearLayout
android:id="#+id/layout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center"
>
<Button
android:id="#+id/floor0"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="0"
/>
<Button
android:id="#+id/floor1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="7"
/>
<Button
android:id="#+id/floor2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="6"
/>
<Button
android:id="#+id/floor3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="5"
/>
<Button
android:id="#+id/floor4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="4"
/>
<Button
android:id="#+id/floor5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="0"
/><Button
android:id="#+id/floor6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="3"
/><Button
android:id="#+id/floor7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="2"
/>
<Button
android:id="#+id/floor8"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="1"
/>
<Button
android:id="#+id/floor9"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="0"
/>
</LinearLayout>
</ScrollView>
</LinearLayout>

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