Develop Reference

How to Make BottomSheetDialogFragment appear at the top of BottomNavigationView and how to make it appear beneath the BottomNavigationView

I'm trying to make the BottomSheetDialogFragment appear at the top of BottomNavigationView and below the BottomNavigationView, ie with a lower elevation.
The BottomSheetDialogFragment will feature a YouTube-like video player with a RecyclerView and expanding and collapsing the bottomsheet.
I already researched several suggestions and nothing solved. Including Stackoverflow.
I tried the two variants of the Show () method, as per the code below - but none worked.
I can do Expand, Collapsed and other actions, do not worry about it. The problem is to make the BottomSheet behind the BottomNavigationView and above the RecyclerView of the Activity.
CODE ACTIVITY
public class myController extends CommonActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//inflate the layout of the activity
setContentView(R.layout.controller_layout);
//other activity codes
//progressBar = findViewById(R.id.progressBar);
//contains initialization codes for views and recyclerview
//initViews();
}
OPTION 01: It's the CALL that everyone is pointing to BottomSheetDilogFragment, except BottomSheet is over BottomNavigationView
INITIALIZED when clicking on a item (thumbnail) of a RecyclerView in the layout of the activity/fragment
public void initBottomSheet(Bundle b){
VideoViewBottomSheet fragment = new VideoViewBottomSheet();
fragment.setArguments( b );
fragment.show( getSupportFragmentManager(), VideoViewBottomSheet.FRAGMENT_KEY );}
OPTION 02: I tried this option for BottomSheetDilogFragment, in it the BottomSheet is
DOWN of the BottomNavigationView, BUT behave like a NORMAL FRAGMENT and not as BottomSheetDilogFragment, DO NOT EXPAND, DO NOT COLLAPSE, NOTHING.
public void initBottomSheet(Bundle b){
VideoViewBottomSheet fragment = new VideoViewBottomSheet();
fragment.setArguments( b );
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
ft.add(R.id.bottom_sheet_loyout, fragment);
ft.commit();
}
}
CODE BottomSheetFragment
#Override
public void onStart() {
super.onStart();
Dialog dialog = getDialog();
if (dialog != null) {
View view = getView();
final View parent = (View) view.getParent();
final View bottomSheet = dialog.findViewById(R.id.rv_bottom_sheet);
final View videoView = bottomSheet.findViewById(R.id.videoView);
final View bottom_nav_view = getActivity().findViewById(R.id.bottom_nav_view);
final int screenHeight = ViewGroup.LayoutParams.MATCH_PARENT;
final View relativeLayout = getActivity().getWindow().getDecorView().getRootView().findViewById(R.id.relativelayout);
final View coodinatorLayout = getActivity().getWindow().getDecorView().getRootView().findViewById(R.id.coordinatorlayout);
CoordinatorLayout.LayoutParams params = (CoordinatorLayout.LayoutParams) (parent).getLayoutParams();
CoordinatorLayout.Behavior behavior = params.getBehavior();
parent.setFitsSystemWindows(false);
bottomSheet.getLayoutParams().height = screenHeight;
params.gravity = Gravity.TOP | Gravity.CENTER_HORIZONTAL;
final BottomSheetBehavior bottomSheetBehavior = (BottomSheetBehavior) behavior;
bottomSheetBehavior.setState(BottomSheetBehavior.STATE_EXPANDED);
if (bottomSheetBehavior instanceof BottomSheetBehavior) {
offsetY = 0;
((BottomSheetBehavior) bottomSheetBehavior).setBottomSheetCallback(
new BottomSheetBehavior.BottomSheetCallback() {
#Override
public void onSlide(#NonNull View bottomSheet, float slideOffset) {
if(slideOffset>0.2 ){
bottomSheetBehavior.setHideable(false);
bottomSheetBehavior.setPeekHeight(bottom_nav_view.getHeight()+56 );
bottomSheetBehavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
parent.setPadding(0,0,0,bottom_nav_view.getHeight()+56);
parent.setBackgroundColor(Color.GREEN);
bottom_nav_view.setVisibility(View.VISIBLE);
bottom_nav_view.setBackgroundColor(Color.YELLOW);
}
offsetY = slideOffset;
}
#Override
public void onStateChanged(#NonNull View bottomSheet, int newState) {
}
});
}
}
}
The expected result is a BottoSheet similar to that of the Youtube Player. That is, a BottomSheet that contains a Fragment RecyclerView and Play Videos.
XMLS
mycontroller_layout.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:id="#+id/relativelayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/transparent"
android:fitsSystemWindows="false"
tools:context=".myController">
<android.support.design.widget.CoordinatorLayout
android:id="#+id/coordinatorlayout"
android:layout_above="#+id/bottom_nav_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:fitsSystemWindows="false">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay">
</android.support.v7.widget.Toolbar>
</android.support.design.widget.AppBarLayout>
<ProgressBar
android:id="#+id/progressBar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_centerInParent="true"
android:layout_centerHorizontal="true"
android:layout_gravity="center_vertical|center_horizontal"
android:visibility="gone" />
<include layout="#layout/content" />
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/bottomsheet"/>
</android.support.design.widget.CoordinatorLayout>
<android.support.design.widget.BottomNavigationView
android:id="#+id/bottom_nav_view"
android:layout_below="#+id/coordinatorlayout"
android:layout_width="match_parent"
android:layout_height="56dp"
android:elevation="50dp"
android:visibility="visible"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
app:itemIconTint="#color/colorWhite"
android:background="#color/colorPrimary"
app:menu="#menu/activity_main_bottom" />
</RelativeLayout>
content.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:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingTop="4dp"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context=".RebootController"
tools:showIn="#layout/reboot_controller_layout">
<RelativeLayout
android:id="#+id/containerContent"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
</RelativeLayout>
</RelativeLayout>
bottom_sheet_loyout.xml
-------------------
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/res-auto"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/rv_bottom_sheet"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/bottom_nav_view"
android:paddingLeft="4dp"
android:paddingRight="4dp"
android:elevation="3dp"
android:fitsSystemWindows="false"
android:orientation="vertical"
app:layout_behavior="#string/bottom_sheet_behavior" >
<RelativeLayout
android:id="#+id/rlVideoView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true">
<VideoView
android:id="#+id/videoView"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<android.support.v4.widget.SwipeRefreshLayout
android:id="#+id/srl_swipe"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/videoView">
<android.support.v7.widget.RecyclerView
android:id="#+id/rv_list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:clipToPadding="false"
android:paddingBottom="56dp"/>
</android.support.v4.widget.SwipeRefreshLayout>
<ProgressBar
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_gravity="center"
android:visibility="gone" />
<!--<LinearLayout
anúncio google
</LinearLayout>-->
</RelativeLayout>
</RelativeLayout>

How can set Height of a View auto by Width?

I have FrameLayout: Width =match_parent, I want set Height = 70% * Width
Ex:
<FrameLayout
android:id="#+id/fiew"
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="20dp">
</FrameLayout>
How can set Height =70% * Width?

Use ConstraintLayout
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto">
<FrameLayout
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginEnd="0dp"
android:layout_marginStart="0dp"
android:layout_marginTop="0dp"
android:background="#android:color/black"
app:layout_constraintDimensionRatio="H,3:1"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
</FrameLayout>
</android.support.constraint.ConstraintLayout>
Here just use ratio in app:layout_constraintDimensionRatio to specify the percentage

You can use a ViewTreeObserver to know when the layout has completed, and then change the layout params of the FrameLayout to adjust the height.
frame_layout.xml
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="#+id/fiew"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:background="#color/colorPrimary"
android:layout_marginTop="20dp">
</FrameLayout>
</LinearLayout>
FrameLayoutActivity
public class FrameLayoutActivity extends AppCompatActivity {
private FrameLayout fiew;
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.frame_layout);
fiew = (FrameLayout) findViewById(R.id.fiew);
final View layout = (View)fiew.getParent();
ViewTreeObserver vto = layout.getViewTreeObserver();
vto.addOnGlobalLayoutListener (new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
layout.getViewTreeObserver().removeOnGlobalLayoutListener(this);
int width = layout.getMeasuredWidth();
//int height = layout.getMeasuredHeight();
ViewGroup.LayoutParams params = fiew.getLayoutParams();
params.height = (int) (width * 0.7);
fiew.setLayoutParams(params);
fiew.invalidate();
}
});
}
}

A simple approach is to take that Framelayout inside a Linearlayout and play with weight. No need to use Constraint layout.
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:weightSum="10">
<FrameLayout
android:id="#+id/fiew"
android:layout_width="match_parent"
android:layout_weight="7"
android:layout_height="0dp">
</FrameLayout>
</LinearLayout>

Display ProgressBar in middle of Screen in android

Here is my layout for Activity. And I want to display android.widget.ProgressBar in the middle of the screen dynamically.
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.CoordinatorLayout
android:id="#+id/myCoordinator"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:id="#+id/appBarLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<include layout="#layout/toolbar" />
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="#+id/frameContainer"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
<RelativeLayout
android:id="#+id/rlSearchToolContainer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#color/colorPrimary"
android:gravity="bottom"
android:layout_gravity="bottom"
android:visibility="gone">
<LinearLayout
android:id="#+id/llSearchComponentContainer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="#color/colorPrimary"
android:layout_toLeftOf="#+id/btnDone"
android:gravity="bottom"
android:orientation="horizontal"></LinearLayout>
<Button
android:id="#+id/btnDone"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:text="Done"/>
</RelativeLayout>
</android.support.design.widget.CoordinatorLayout>
<FrameLayout
android:id="#+id/frameLeftSlide"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start" />
</android.support.v4.widget.DrawerLayout>
Now In that FrameLayout (id = frameContainer) I replace a Fragment that is BaseFragment.(fragment_base.xml)
MainActivity.java
class MainActivity extends AppCompatActivity{
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
BaseFragment mFileListFragment = new BaseFragment();
FragmentManager manager = getSupportFragmentManager();
FragmentTransaction transaction = manager.beginTransaction();
transaction.replace(R.id.frameContainer, mFileListFragment);
transaction.commit();
}
}
fragment_base.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<FrameLayout
android:id="#+id/frameContainer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/white"/>
</LinearLayout>
BaseFragment.java
public class BaseFragment extends Fragment{
private View mView;
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
if (mView == null) {
mView = inflater.inflate(R.layout.fragment_phone_file_base, null);
setLayoutViews(mView);
}
return mView;
}
public void onActivityCreated(#Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
FileListFragment mFileListFragment = new FileListFragment();
FragmentManager manager = getChildFragmentManager();
FragmentTransaction transaction = manager.beginTransaction();
transaction.replace(R.id.frameContainer, mFileListFragment);
transaction.commit();
}
}
Now In FrameLayout(id = frameContainer) of that BaseFragment I open child fragment that is FileListFragment. (fragment_file_list.xml)
fragment_file_list.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/rvFileList"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="visible"/>
</RelativeLayout>
FileListFragment.java
public class FileListFragment extends Fragment{
private View mView;
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
if (mView == null) {
mView = inflater.inflate(R.layout.fragment_file_list, null);
setLayoutViews(mView);
}
return mView;
}
#Override
public void onActivityCreated(#Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
// Here there is a server call which retrieves File Data from server. When I send server request I start progressBar and after response I hide progressBar programatically.
ProgressBar mProgressBar = new ProgressBar(activity);
FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT,
FrameLayout.LayoutParams.WRAP_CONTENT);
params.gravity = Gravity.CENTER;
mProgressBar.setLayoutParams(params);
mProgressBar.getIndeterminateDrawable().setColorFilter(activity.getResources().getColor(R.color.colorPrimary), PorterDuff.Mode.MULTIPLY);
FrameLayout listFrame = getParentFragment().getView().findViewById(R.id.frameContainer);
if(listFrame != null) {
listFrame.addView(mProgressBar);
}
}
}
But it doesn't show progressBar in middle of the screen. It displays below of middle of screen like image attached below.

You can try with android:layout_gravity
Standard gravity constant that a child supplies to its parent.
You can align a view in center of the Framelayout by setting the layout_gravity of the child view .
android:layout_gravity="center"
Place the object in the center of its container in both the vertical and horizontal axis, not changing its size .

This is because you adding progressbar in center of framelayout, try this
<android.support.design.widget.CoordinatorLayout
android:id="#+id/myCoordinator"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ProgressBar
android:id="#+id/progressBar2"
style="?android:attr/progressBarStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center" />
<android.support.design.widget.AppBarLayout
android:id="#+id/appBarLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<include layout="#layout/toolbar" />
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="#+id/frameContainer"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
<RelativeLayout
android:id="#+id/rlSearchToolContainer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#color/colorPrimary"
android:gravity="bottom"
android:layout_gravity="bottom"
android:visibility="gone">
<LinearLayout
android:id="#+id/llSearchComponentContainer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="#color/colorPrimary"
android:layout_toLeftOf="#+id/btnDone"
android:gravity="bottom"
android:orientation="horizontal"></LinearLayout>
<Button
android:id="#+id/btnDone"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:text="Done"/>
</RelativeLayout>
</android.support.design.widget.CoordinatorLayout>
<FrameLayout
android:id="#+id/frameLeftSlide"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start" />

Try it using Relativelayout, use Relativelayout as container of progressbar and use centerinparent attribute to center the progressbar in the middle of screen :
RelativeLayout layout = new RelativeLayout(this);
progressBar = new ProgressBar(this);
progressBar.setIndeterminate(true);
progressBar.setVisibility(View.VISIBLE);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(100,100);
params.addRule(RelativeLayout.CENTER_IN_PARENT);
layout.addView(progressBar,params);
setContentView(layout);

Why does listView addHeaderView() display nothing?

Why listView can't addHeaderView to itself?
I have added the params into the header rather than WRAP_CONTENT,MATCH_PARETN.
MainActivity:
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ListView list = (ListView) findViewById(R.id.lv);
LinearLayout head = (LinearLayout) getLayoutInflater().inflate(R.layout.layout, null);
AbsListView.LayoutParams params = new AbsListView.LayoutParams(
200,200
);
head.setLayoutParams(params);
list.addHeaderView(head);
}
}
activity_main.xml:
<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"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity">
<ListView
android:id="#+id/lv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</RelativeLayout>
layout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/iv"
android:layout_width="200dp"
android:layout_height="200dp"
android:src="#mipmap/ic_launcher" />
</LinearLayout>
What should i do?

Try to imprort LayoutParams from RelativeLayout class instead of AbsListView. I think it may be problem of Class casting.

Changing relative layout programmatically

I've relative layout i.e. main.xml which I set as follows. But now I've to put view1 on view2 with width=200dp and height =100dp, so that view2 will be large one and view1 will be small one on it.
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/root"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<RelativeLayout
android:id="#+id/MainPanel"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#id/panel_bottom"
android:layout_gravity="center_horizontal" >
<com.proj.demo.view1
android:id="#+id/sheet"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignWithParentIfMissing="true"
android:layout_centerInParent="true"
android:layout_toLeftOf="#+id/panel_quick_buttons"
/>
<com.proj.demo.view2
android:id="#+id/sheet2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignWithParentIfMissing="true"
android:layout_centerInParent="true"
android:layout_toLeftOf="#+id/panel_quick_buttons"
/>
</RelativeLayout>
</RelativeLayout>

What do you want to achieve? If you just want to change width and heigh than:
RelativeLayout rl = (RelativeLayout) findViewById(R.id.yourId);
rl.getLayoutParams().height = 100;
rl.getLayoutParams().width = 100;