I have an Activity which uses the following layout:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity" >
<Button
android:id="#+id/btnCapture"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Start capture" />
<Button
android:id="#+id/btnPlay"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Play video" />
<SurfaceView
android:id="#+id/surfaceView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<VideoView
android:id="#+id/videoView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
How can I hide surfaceView and show videoView when btnPlay is clicked? I would also like to do something similar where videoView is hidden and surfaceView is shown when clicking btnCapture.
This is how I'm hiding and showing views:
surfaceView.setVisibility(View.GONE);
videoView.setVisibility(View.VISIBLE);
The easiest way is to put both surfaceView and videoView in different Linearlayout and then play with linearlayout setVisibility() behind the btnCapture click.
maybe like this:
btnPlay.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (surfaceView_linearlayout.getVisibility() == 0) {
videoView_linearlayout.setVisibility(View.VISIBLE);
surfaceView_linearlayout.setVisibility(View.GONE);
}
}
});
btnCapture.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (videoView_linearlayout.getVisibility() == 0) {
surfaceView_linearlayout.setVisibility(View.VISIBLE);
videoView_linearlayout.setVisibility(View.GONE);
}
}
});
Related
I have a full image fragment. There is a RelativeLayout and LinearLayout in framelayout. LinearLayout contain viewpager.
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/framelayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/linearLayoutViewpager">
<com.bogdwellers.pinchtozoom.view.ImageViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
<RelativeLayout
android:id="#+id/relativelayoutforbuttons"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<Button
android:id="#+id/save_img"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Save" />
</RelativeLayout>
I want When user first open it it should only show image(Viewpager layout) and if user click on it that show other option like - share and save(RelativeLayout).
We can find this type of feature in facebook and whatsapp.
You can simply hide or unhide the relativeLayout's instance using setVisibility.(..) method on linearLayout or imageviewpager click.
layout:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/framelayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/linearLayoutViewpager">
<ImageViewPager
android:id="#+id/viewpager"
android:onClick="onPagerClick"
android:layout_width="200dp"
android:layout_height="200dp" />
</LinearLayout>
<RelativeLayout
android:id="#+id/relative_layout"
android:visibility="gone"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<Button
android:id="#+id/save_img"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="onSave"
android:text="Save" />
</RelativeLayout>
</FrameLayout>
Activity:
public class TestActivity extends AppCompatActivity {
private boolean isButtonShown = false;
ImageViewPager viewPager;
RelativeLayout layout;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_test);
viewPager = findViewById(R.id.viewpager);
layout = findViewById(R.id.relative_layout);
}
public void onPagerClick(View view) {
if (isButtonShown) {
isButtonShown = false;
layout.setVisibility(View.GONE);
} else {
isButtonShown = true;
layout.setVisibility(View.VISIBLE);
}
}
}
Try this type code for visiablity ..
private void share(){
relativeLayout.setVisibility(View.VISIBLE);
linearLayoutViewpager.setVisibility(View.GONE);
}
linearLayoutViewpager=findViewById(R.id.linearLayoutViewpager);
linearLayoutViewpager.setVisibility(View.VISIBLE);
relativeLayout=findViewById(R.id.relativelayoutforbuttons);
relativeLayout.setVisibility(View.GONE);
it only sample code but mange according your needs.
final boolean flag=true;
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if (flag){
relativeLayout.setVisibility(View.VISIBLE);
flag=false;
}
else{
relativeLayout.setVisibility(View.GONE);
}
}
});
I want to show toast on button click, and that button is in the fragment. I have tried methods to get context for the toast, but it is not showing on button click.
This is my code
public class Bottom_Sheet_Fragment extends Fragment {
Button addComment;
public Bottom_Sheet_Fragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view=inflater.inflate(R.layout.fragment_bottom__sheet, container, false);
addComment=(Button) container.findViewById(R.id.addCommentBtn);
addComment.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(getActivity(), "Added", Toast.LENGTH_SHORT).show();
}
});
return view;
}
}
This is fragment layout
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/bottom_sheet1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/holo_blue_light"
android:fillViewport="true"
android:orientation="vertical"
app:behavior_hideable="true"
app:behavior_peekHeight="0dp"
app:layout_behavior="android.support.design.widget.BottomSheetBehavior">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/holo_blue_light"
android:orientation="vertical">
<android.support.v7.widget.RecyclerView
android:id="#+id/commentList"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText
android:id="#+id/etComment"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:hint="Write comment" />
<Button
android:id="#+id/addCommentBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:text="Add" />
</RelativeLayout>
</LinearLayout>
this layout file is included in another activity, with in include statement.dont know where is the problem. and this fragment works like a bottomsheet.
Try this: addComment = view.findViewById(R.id.addCommentBtn);
Because you must get button from layout was inflated.
You need to use view.findViewById.
Try This
addComment=(Button) view.findViewById(R.id.addCommentBtn);
addComment.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(getActivity(), "Added", Toast.LENGTH_SHORT).show();
}
});
I have found out that if the parent layout contains android:fitsSystemWindows="true", it will interfere with my BottomSheets positioning, when a view-related action happens.
Specifically the one I'm encountering: where a newline in a textview will trigger the bottomsheets to offset by the height of the system/notif-bar.
newline + fitsSystemWindows = shoves my bottomsheet down
I eliminated all irrelevant stuff down to buttons, textview and the bottomsheet.
Button2: setText("1\n2") is where the magic happens
As soon as I remove android:fitsSystemWindows="true", it's all ok, no more strange behavior, but I lose the effect of how fitsSystemWindows colors in the system/notif-bar.
I also tried to give my bottomSheet layout its own android:fitsSystemWindows="false", but it has had no effect.
How can I achieve both fitsSystemWindows=true without this strange offset behavior on my bottomSheets?
See for yourself!
public class Test extends AppCompatActivity {
private BottomSheetBehavior bottomSheetBehavior;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.act_test);
LinearLayout bottomSheet = (LinearLayout) findViewById(R.id.root_btmsheet);
bottomSheetBehavior = BottomSheetBehavior.from(bottomSheet);
bottomSheet.post(new Runnable() {
#Override
public void run() {
bottomSheetBehavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
}
});
((Button) findViewById(R.id.btn1)).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
((TextView) findViewById(R.id.info1)).setText("1");
}
});
((Button) findViewById(R.id.btn2)).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// the culprit, Mr. Newline
((TextView) findViewById(R.id.info1)).setText("1\n2");
}
});
}
}
act_test.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
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="match_parent"
android:fitsSystemWindows="true" <-- the other culprit, Ms. Fits
tools:context=".Test">
<!--<include layout="#layout/act_test_content" />-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:orientation="vertical"
android:id="#+id/root_content">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="#+id/btn1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="1" />
<Button
android:id="#+id/btn2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="2" />
</LinearLayout>
<TextView
android:id="#+id/info1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#e0e0e0" />
</LinearLayout>
<!--<include layout="#layout/act_test_btmsheet" />-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="200dp"
app:layout_behavior="#string/bottom_sheet_behavior"
android:orientation="vertical"
app:behavior_hideable="false"
app:behavior_peekHeight="50dp"
android:background="#5533b5e5"
android:id="#+id/root_btmsheet">
</LinearLayout>
</android.support.design.widget.CoordinatorLayout>
I too had a similar problem even with support library 25.1.0. But I later figured out that it could have been because of not using a CollapsingToolbarLayout. I included it and bang!.. it is behaving normally even after any layout changes due to linebreaks
Okay so I have a Tab view going inside of which I have a webview, a listview and a few other pages. I want to be able to do a SwipeRefreshLayout to refresh each item. I have this working on each page. But, when I scroll down in a webview I can't scroll back up. It triggers the refresh and rebuilds it. I'd like to be able to scroll up in my webview.
Layout stuff
<android.support.v4.widget.SwipeRefreshLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/swipe_container"
android:layout_width="match_parent"
android:layout_height="20px"
android:layout_weight="1"
android:nestedScrollingEnabled="true">
<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=".Splash$PlaceholderFragment">
<TextView
android:id="#+id/section_label"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<WebView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/webView"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true"
android:overScrollMode="ifContentScrolls"
android:nestedScrollingEnabled="false"/>
<ProgressBar
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/progressBar"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true" />
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/listView"
android:layout_centerVertical="false"
android:layout_centerHorizontal="true"
android:visibility="visible" />
</RelativeLayout>
</android.support.v4.widget.SwipeRefreshLayout>
The SwipeRefreshLayout is being used inside the fragment for my tabbed layout.
swipeLayout = (SwipeRefreshLayout) rootView.findViewById(R.id.swipe_container);
swipeLayout.setColorScheme(android.R.color.holo_blue_bright,
android.R.color.holo_green_light,
android.R.color.holo_orange_light,
android.R.color.holo_red_light);
swipeLayout.setOnRefreshListener( new SwipeRefreshLayout.OnRefreshListener() {
#Override public void onRefresh() {
if(getArguments().getInt(ARG_SECTION_NUMBER) == 4 ) {
stringArrayList.clear();
new updatetheQueue().execute(ctx);
}
else {
swipeLayout.setRefreshing(false);
}
}});
You can use an OnScrollChangedListener to disable SwipeRefreshLayout when the WebView is not scrolled to the top.
// Only enable swipe to refresh if the `WebView` is scrolled to the top.
webView.getViewTreeObserver().addOnScrollChangedListener(new ViewTreeObserver.OnScrollChangedListener() {
#Override
public void onScrollChanged() {
if (webView.getScrollY() == 0) {
swipeRefreshLayout.setEnabled(true);
} else {
swipeRefreshLayout.setEnabled(false);
}
}
});
Getting this working was very challenging. However there is a fairly simple modification that can be made to the layout XML to work around this. It means I can't update the webviews on swipe but thats okay.
<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=".Splash$PlaceholderFragment">
<TextView
android:id="#+id/section_label"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<WebView
android:id="#+id/webView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:overScrollMode="ifContentScrolls" />
<ProgressBar
android:id="#+id/progressBar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true" />
<android.support.v4.widget.SwipeRefreshLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/swipe_container"
android:layout_width="match_parent"
android:layout_height="match_parent">
<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=".Splash$PlaceholderFragment">
<ListView
android:id="#+id/listView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="false"
android:visibility="visible" />
</RelativeLayout>
</android.support.v4.widget.SwipeRefreshLayout>
you can make a class extend SwipeRefreshLayout and Override canChildScrollUp to sit scro
#Override
public boolean canChildScrollUp() {
// TODO Auto-generated method stub
return true; // if you want it to scroll up
// check if child Get To Top
//return false // if you want it to execute swipe down to refresh listener
}
If you are using the ViewPager and the tabs are Fragments, you can fix your WebViewFragment with this snippet:
private ViewTreeObserver.OnScrollChangedListener mOnScrollChangedListener;
#Override
public void onStart() {
super.onStart();
swipeLayout.getViewTreeObserver().addOnScrollChangedListener(mOnScrollChangedListener =
new ViewTreeObserver.OnScrollChangedListener() {
#Override
public void onScrollChanged() {
if (mWebView.getScrollY() == 0)
swipeLayout.setEnabled(true);
else
swipeLayout.setEnabled(false);
}
});
}
#Override
public void onStop() {
swipeLayout.getViewTreeObserver().removeOnScrollChangedListener(mOnScrollChangedListener);
super.onStop();
}
More info in Android - SwipeRefreshLayout with empty textview.
this is how i solve the problem, hope it will help :
mWebView.getViewTreeObserver().addOnScrollChangedListener(new ViewTreeObserver.OnScrollChangedListener() {
#Override
public void onScrollChanged() {
if(mWebView.getScrollY() == 0){
mSwipeRefreshLayout.setEnabled(true);
}else{
mSwipeRefreshLayout.setEnabled(false);
}
}
});
In kotlin:
webView.viewTreeObserver.addOnScrollChangedListener {
binding.swipeRefreshLayout.isEnabled = webView.scrollY == 0
}
In android I am trying to move more activities into one (refactor code and I try to replace set of activities with fragments), but I need only one fragment to be visible at time.
How on click button in activity which has this xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:id="#+id/fragment_container"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:gravity="center_horizontal"
android:orientation="vertical" >
<fragment
android:id="#+id/lm_fragment"
android:name="com.example.loyalty.MerchantsActivity"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="2"
/>
<fragment
android:id="#+id/pm_fragment"
android:name="com.example.loyalty.RewardsActivity"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="2" />
<com.touchmenotapps.widget.radialmenu.semicircularmenu.SemiCircularRadialMenu
android:id="#+id/radial_menu"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:padding="0dp" />
</RelativeLayout>
to make that on click change which fragment is visible (only one is visible and use whole screen)
If you are trying to show one fragment at a time and also want many fragment to change, you have to create fragment dynamically in activity on a view click. use a xml like this one.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<!-- This will hold your fragment's view-->
<FrameLayout
android:id="#+id/fragment_layout"
android:layout_width="match_parent"
android:background="#android:color/white"
android:layout_height="0dp"
android:layout_weight="1" />
<!-- This part will be your activity specific -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:orientation="horizontal" >
<Button
android:id="#+id/open_fragmen1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"/>
<Button
android:id="#+id/open_fragmen2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"/>
</LinearLayout>
</LinearLayout>
Here FrameLayout will be replaced with your Fragment that you want to show on Activity at that time, on Button click you can make this transition.
In activity to change the Fragment you have to write the following code.
public class MenuActivity extends Activity {
private Button btn1, btn2;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
btn1 = (ImageButton) findViewById(R.id.open_fragment1);
btn2 = (ImageButton) findViewById(R.id.open_fragment2);
btn1.setOnClickListener(new View.OnClickListener(){
public void onClick(View v) {
// I am assuming your fragment class is MerchantsActivity
changeFragmentTo(new com.example.loyalty.MerchantsActivity());
}
});
btn2.setOnClickListener(new View.OnClickListener(){
public void onClick(View v) {
changeFragmentTo(new com.example.loyalty.RewardsActivity());
}
});
}
public void changeFragmentTo(Fragment fragment) {
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.menu_fragment, fragment).commit();
}
}
If you need to change another fragment to activity call the function changeFragmnetTo(new NewFragment())