Develop Reference

Add editText to fragment

I'm trying to add editText and textView to a fragment. The code to generate the editText and TExtView is correct because I've used it before, but in this case nothing appears. Any ideas?
Fragment code:
public class MarcadoresFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
View myFragmentView = inflater.inflate(R.layout.fragment_marcadores, container, false);
return myFragmentView;
}
}
Add the editText:
public void createEditText(int size){
Log.d("det", String.valueOf(size));
LayoutInflater inflater = this.getLayoutInflater();
View dialogView = inflater.inflate(R.layout.fragment_marcadores, null);
LinearLayout layout = (LinearLayout) dialogView.findViewById(R.id.marcadoresFrag); // this is whatever view you want to add them to
EditText editText;
TextView textView;
if(layout!=null)
for(int i=0;i<size;i++){
textView = new TextView(dialogView.getContext());
textView.setText("Descrição do marcador " + String.valueOf(i + 1));
textView.layout(0, 5, 0, 5);
// add to the view
layout.addView(textView);
editText = new EditText(dialogView.getContext());
editText.setId(i);
editText.setHint("Ex: Bebedouro ndsfhjdsjvdsbjvjhvjdfjbvfjfvjklbjklfv" + i + 1);
Log.d("det", "jsdgbiusdbgksjd");
allEds.add(editText);
// add to the view
layout.addView(editText);
}
}

Get Height/Width of imageView from Android.Support.V4.Fragment(always return zero)

I'm using V4.Fragments. So from activity i'm creating new instance of my fragment and after that i begin transaction.
The main problem,that my imageview control is defined(in axml) as Layout_width="match_parent"
and weightSum=1 (for height).
For some reason i need to know height/width of my imageView.
What i tried :
was created class that implements IOnGlobalLayoutListener
class GlobalLayoutListener : Java.Lang.Object, ViewTreeObserver.IOnGlobalLayoutListener
{
System.Action _OnGlobalLayout;
public GlobalLayoutListener (System.Action onGlobalLayout)
{
this._OnGlobalLayout = onGlobalLayout;
}
public void OnGlobalLayout ()
{
_OnGlobalLayout ();
}
}
After that,in my V4.Fragment class,i'm doing this:
public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
Arguments = new Bundle();
View _View = inflater.Inflate(Resource.Layout.MyFragmentLayout, container, false);
imgView = _View.FindViewById<ImageView>(Resource.Id.imgView);
Action CallBack = () =>
{
ImgHeight = imgView.Height;
ImgWidth = imgView.Width;
};
//new instance of class,that implements IOnGlobalLayoutListener
GlobalLayoutListener Global = new GlobalLayoutListener(CallBack);
imgView.ViewTreeObserver.AddOnGlobalLayoutListener(Global);
retun _View;
}
Trick doesnt worked. Always return zero(height/width).
Second variant,i implemented interface of IOnGlobalLayoutListener directly in MyFragment
public class MyCustomFragment : Android.Support.V4.App.Fragment,View.IOnTouchListener,ViewTreeObserver.IOnGlobalLayoutListener
{
int ImgHeight;
int ImgWidth;
ImageView imgView;
Bundle Arguments;
public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
Arguments = new Bundle();
View _View = inflater.Inflate(Resource.Layout.MyFragmentLayout, container, false);
imgView = _View.FindViewById<ImageView>(Resource.Id.imgView);
ViewTreeObserver Vto = imgView.ViewTreeObserver; //also tried with _View.ViewTreeObserver; result same
Vto.AddOnGlobalLayoutListener(this);
retun _View;
}
Same problem,doesnt worked.
And my last variant is like :
public class MyCustomFragment : Android.Support.V4.App.Fragment
{
int ImgHeight;
int ImgWidth;
ImageView imgView;
Bundle Arguments;
public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
Arguments = new Bundle();
View _View = inflater.Inflate(Resource.Layout.MyFragmentLayout, container, false);
imgView = _View.FindViewById<ImageView>(Resource.Id.imgView);
imgView.ViewTreeObserver.GlobalLayout += (sender, e) => //also tried with _View
{
ImgHeight = imgView.Height;
ImgWidth = imgView.Width;
};
retun _View;
}
Again no luck,what i'm doing wrong? Thanks.
PS Sorry for my eng.

All works fine,i was doing something wrong.
So this code works great :
imgView.ViewTreeObserver.GlobalLayout += (sender, e) =>
{
ImgHeight = imgView.Height;
ImgWidth = imgView.Width;
};
Enjoy!

How to change view after getting successful request android?

I have this piece of code:
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
tableView = inflater.inflate(R.layout.fragment_table, container, false);
View layout = inflater.inflate(R.layout.fragment_1, container, false);
if (roomArray == null || roomArray.isEmpty()) {
roomArray = getTablesList(new VolleyCallback() {
#Override
public void onSuccess(ArrayList<RoomsClass> result) {
Toast.makeText(getActivity(), "onSuccess", Toast.LENGTH_LONG).show();
}
});
} else {
ArrayList<View> tableList = new ArrayList<>();
ArrayList<Tables> tables;
Toast.makeText(getActivity(), "IsNotNull", Toast.LENGTH_LONG).show();
tables = roomArray.get(0).getTables();
GridLayout gridLayout = (GridLayout) layout.findViewById(R.id.grid_layout);
for (int i = 0; i < 1; i++) {
tableView = inflater.inflate(R.layout.fragment_table, container, false);
TextView textView = (TextView) tableView.findViewById(R.id.table_number);
textView.setText(tables.get(i).getTableNumber());
GridLayout.Spec row = GridLayout.spec(i / 5);
GridLayout.Spec col = GridLayout.spec(i);
GridLayout.LayoutParams params = new GridLayout.LayoutParams(row, col);
gridLayout.addView(tableList.get(i), i, params);
}
}
return layout;
}
so I have onSuccess, but I cant add views to my fragment. I need to somehow call all methods after onSuccess, but its inner class so I can't handle anything there. So what is the right way of doing this?

Are you inflating two fragments in createView?
tableView = inflater.inflate(R.layout.fragment_table, container, false);
View layout = inflater.inflate(R.layout.fragment_1, container, false);

have u try to use handler to solve this problem , the use of handler can avoid do something in a inner class.
Handler myHandler = new Handler() {
public void handleMessage(Message msg) {
switch (msg.what) {
case a:
//do somthing
break;
}
super.handleMessage(msg);
}
};

How to call the child's parent for this specified child that already has a parent

This is the code:
public class HelpDetailsFragment extends Fragment
{
private static final String TAG = "MeMoGame";
public static HelpDetailsFragment newInstance(int index)
{
HelpDetailsFragment detailFragment = new HelpDetailsFragment();
Bundle bundleArgs = new Bundle();
bundleArgs.putInt("index", index);
detailFragment.setArguments(bundleArgs);
return detailFragment;
} // newInstance()
#Override
public View onCreateView(LayoutInflater inflater,
ViewGroup container,
Bundle savedInstanceState)
{
if(container == null)
{
Log.i(TAG, "Different layouts and in one this fragment's containing frame does not exist.");
return null;
} else {
// I checked that container is NOT null
Log.i(TAG, "This is the parent view that the fragment's UI should be attached to.");
}
View mView = new View(getActivity());
container.addView(mView);
return container;
}
This error message appears:
AndroidRuntime(785): Caused by: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
Can / will someone please explain what I'm doing wrong?
When I do:
View mView = new View(getActivity());
TextView text = (TextView) new TextView()
mView.addView(text);
return mView;
I get the same error message.
My salvation lies inhere:
#Override
public View onCreateView(LayoutInflater inflater,
ViewGroup container,
Bundle savedInstanceState)
{
Context context = getActivity();
FrameLayout frameLayout = new FrameLayout(context);
int height = (int) TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_DIP, 50, getActivity()
.getResources().getDisplayMetrics());
int padding = (int) TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_DIP, 10, context
.getResources().getDisplayMetrics());
// set the header
TextView headText = new TextView(context);
headText.setHeight(height);
headText.setPadding(padding, 0, 0, 0);
headText.setTextAppearance(context, R.style.details_Header);
headText.setText(HelpScreenData.HELP_HEADERS[getCurrentIndex()]);
frameLayout.addView(headText);
ScrollView scroller = new ScrollView(context);
// set detail text
TextView detailText = new TextView(context);
detailText.setPadding(padding, padding + height, padding, padding);
detailText.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 18);
detailText.setText(HelpScreenData.HELP_DETAILS[getCurrentIndex()]);
scroller.addView(detailText);
frameLayout.addView(scroller);
return frameLayout;
} // onCreateView()
An explanation would still be very welcome!

The issue here is you are returning the container-- return container; you should be returning mView in your case, the container is the actual container for the fragment in your activity layout

How to handle event soft keyboard hidden?

My note application has 2 fragments on a screen: A list of notes fragment and a note detail fragment to display the selected note in the second fragment, it has an input text field (android:inputType="textMultiLine"). As I want to handle event keyboard hidden so I can save the change user has made when they close the keyboard. Can anyone give me a clue to do this task?

I think that the best and universal solution for keyboard issue, is measure the VisibleDisplayFrame on layout change:
Rect visibleRect = new Rect();
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
ViewGroup mMain = (ViewGroup) inflater.inflate(R.layout.select_cover_album, container, false);
mMain.getWindowVisibleDisplayFrame(visibleRect);
mMain.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
#Override
public void onLayoutChange(View v,
int left,
int top,
int right,
int bottom,
int oldLeft,
int oldTop,
int oldRight,
int oldBottom) {
Rect r = new Rect();
mMain.getWindowVisibleDisplayFrame(r);
if(r.height() < visibleRect.height()){
//keyboard shown
}
if(r.height() == visibleRect.height()){
//keyboard hidden
}
}
});
return mMain;
}

Here's how i handle it on my Note Detail fragment:
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
this.view = inflater.inflate(R.layout.fragment_note_detail_of_style_searching, container , false);
listviewFilter = (ListView) view.findViewById(R.id.listview_filter);
noteDetailView = view.findViewById(R.id.note_detail_of_style_view);
photoDetailView = view.findViewById(R.id.gv_note_detail_photo);
view.getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
int heightDiff = view.getRootView().getHeight() - view.getHeight();
if (heightDiff > 200) {
isWatchingKeyboard = true;
photoDetailView.setVisibility(View.GONE);
return; //must exit now
}
if(isWatchingKeyboard){
isWatchingKeyboard = false;
viewForFocus.requestFocus();
photoDetailView.setVisibility(View.VISIBLE);
}
}
});
return this.view;
}

I did it this way:
private int prevBottom;
#Override
public View onCreateView(LayoutInflater inflater, final ViewGroup container, Bundle savedInstanceState) {
view = inflater.inflate(R.layout.fragment_status, container, false);
prevBottom = view.getBottom();
view.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
if (view.getBottom() > prevBottom) {
view.requestFocus();
}
prevBottom = view.getBottom();
}
});
return view;
}
and added this to the view I was inflating:
android:focusableInTouchMode="true"
and this to the activity in the AndroidManifest.xml
android:windowSoftInputMode="adjustResize"