Fixed buttons between scrollable content

Fixed buttons between scrollable content - android

i'm struggling with scrollview.
I want to display content (1) then buttons (2) and finally content (3).
When i'm scrolling, i want the buttons to be fixed at the top of my activity.
I can't post image, so it would be :
1
2
3
I scroll
2 (fixed at top)
3 (this part start to scroll when the 1 disapear at top)
I scroll
2 (fixed at top)
3 (still scrollable).
I m curently using this :
<ScrollView
android:id="#+id/sv_entete"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/layout_bar"
android:background="#color/gris_blanc" >
<RelativeLayout
android:id="#+id/layout_conteneur"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
// Some image etc.
</RelativeLayout>
</ScrollView>
<Button
android:id="#+id/btn_presentation_has_to_stay_on_top"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/sv_entete" />
<Button
android:id="#+id/btn_analyze_has_to_stay_on_top"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="#+id/sv_entete" />
<ScrollView
android:id="#+id/sv_presentation"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/btn_presentation"
android:background="#color/gris_blanc" >
<RelativeLayout
android:id="#+id/layout_presentation"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
// Some image etc
</RelativeLayout>
</ScrollView>
But only the second part scroll (3), the first part (1) is (obviously) not linked with the second scrollview, but i can't figured out by myself.
Any help plz ?

Looks like there's no way to implement it right out of the box. So, You need to create custom components.
Unfortunately, there's not much details in the question, so I'm not able to suggest which way is better for your case.
However, below two variants I can think of:
Have two button panels in the same layout. Initially only one panel should be visible (one inside scroll view). During scrolling, it first panel reaches top, You'll need to make second one visible. And make it invisible, when scroll up (and first one become visible inside ScrollView). It would increase complexity of layout and coe little bit (e.g. You'll need to listen two sets of buttons instead of one). In simple test application I haven't observed any critical issues / UI artifacts using this implementation,
For that you need to create separate layout for buttons panel, e.g. buttons_panel.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:id="#+id/btn_presentation_has_to_stay_on_top"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="left button"/>
<Button
android:id="#+id/btn_analyze_has_to_stay_on_top"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="right button"/>
</LinearLayout>
Then main activity layout might look like the following (activity_main.xml):
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.alexstarc.testapp.ObservableScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/sv_entete">
<RelativeLayout
android:id="#+id/layout_conteneur"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TextView
android:layout_width="match_parent"
android:layout_height="300dp"
android:id="#+id/image_1"
android:layout_alignParentTop="true"
android:background="#android:color/holo_blue_dark"
android:gravity="center"
android:textSize="30sp"
android:text="Image 1"/>
<ImageView
android:layout_width="match_parent"
android:layout_height="250dp"
android:id="#+id/image_1_1"
android:layout_centerHorizontal="true"
android:layout_below="#id/image_1"
android:src="#drawable/img1"/>
<include
layout="#layout/buttons_panel"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/middle_button_panel"
android:layout_below="#id/image_1_1" />
<TextView
android:layout_width="match_parent"
android:layout_height="100dp"
android:id="#+id/image_2"
android:layout_below="#id/middle_button_panel"
android:background="#android:color/holo_green_dark"
android:gravity="center"
android:textSize="30sp"
android:text="Image 2"/>
<ImageView
android:layout_width="match_parent"
android:layout_height="350dp"
android:id="#+id/image_3"
android:layout_below="#id/image_2"
android:src="#drawable/img3"/>
<TextView
android:layout_width="match_parent"
android:layout_height="250dp"
android:id="#+id/image_4"
android:layout_below="#id/image_3"
android:background="#android:color/holo_orange_dark"
android:gravity="center"
android:textSize="30sp"
android:text="Image 4 (1)"/>
<TextView
android:layout_width="match_parent"
android:layout_height="100dp"
android:id="#+id/image_5"
android:layout_below="#id/image_4"
android:background="#android:color/holo_purple"
android:gravity="center"
android:textSize="30sp"
android:text="Image 5"/>
<TextView
android:layout_width="match_parent"
android:layout_height="350dp"
android:id="#+id/image_6"
android:layout_below="#id/image_5"
android:background="#android:color/holo_blue_dark"
android:gravity="center"
android:textSize="30sp"
android:text="Image 6"/>
<TextView
android:layout_width="match_parent"
android:layout_height="250dp"
android:id="#+id/image_7"
android:layout_below="#id/image_6"
android:background="#drawable/img1"
android:gravity="center"
android:textSize="30sp"
android:text="Image 7"/>
<TextView
android:layout_width="match_parent"
android:layout_height="250dp"
android:id="#+id/image_8"
android:layout_below="#id/image_7"
android:background="#android:color/holo_orange_dark"
android:gravity="center"
android:textSize="30sp"
android:text="Image 8"/>
<TextView
android:layout_width="match_parent"
android:layout_height="100dp"
android:id="#+id/image_9"
android:layout_below="#id/image_8"
android:background="#android:color/holo_purple"
android:gravity="center"
android:textSize="30sp"
android:text="Image 9"/>
<TextView
android:layout_width="match_parent"
android:layout_height="350dp"
android:id="#+id/image_10"
android:layout_below="#id/image_9"
android:background="#android:color/holo_blue_dark"
android:gravity="center"
android:textSize="30sp"
android:text="Image 10"/>
<TextView
android:layout_width="match_parent"
android:layout_height="250dp"
android:id="#+id/image_11"
android:layout_below="#id/image_10"
android:background="#drawable/img1"
android:gravity="center"
android:textSize="30sp"
android:text="Image 11"/>
</RelativeLayout>
</com.alexstarc.testapp.ObservableScrollView>
<include
layout="#layout/buttons_panel"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/top_button_panel"
android:layout_alignParentTop="true"
android:visibility="gone" />
</RelativeLayout>
There's special custom ViewGroup - ObservableScrollView. It's needed, because ScrollView doesn't have any listeners for observing scroll position, but we need to detect then buttons panel inside it become visible. Here's its draft code (please note, I haven't done any optimization or full testing):
public class ObservableScrollView extends ScrollView {
private int mTrackViewId = 0;
private View mTrackView = null;
private int mTrackViewTop = 0;
private int mTrackViewDown = 0;
private OnViewReachTop mTopReachListener = null;
/* Helper interface to notify listener about */
public interface OnViewReachTop {
/**
* Called then View riches top
*/
void onReachTop();
/**
* Called then view leaves top position
*/
void onLeaveTop();
}
public ObservableScrollView(final Context context) {
super(context);
}
public ObservableScrollView(final Context context, final AttributeSet attrs) {
super(context, attrs);
}
public ObservableScrollView(final Context context, final AttributeSet attrs, final int defStyle) {
super(context, attrs, defStyle);
}
/**
* Sets view id to be tracked and corresponding callback
*
* #param viewId id of view to be trackked
* #param listener {#link com.alexstarc.testapp.ObservableScrollView.OnViewReachTop} to be called
*/
public void setViewTopTracking(final int viewId, final OnViewReachTop listener) {
mTrackView = findViewById(viewId);
if (mTrackView == null) {
throw new IllegalArgumentException("Passed view id should be from child of this scroll view");
}
mTrackViewId = viewId;
mTopReachListener = listener;
}
#Override
protected void onScrollChanged(final int l, final int t, final int oldl, final int oldt) {
if (mTrackViewDown == 0 && mTrackViewTop == 0) {
mTrackViewDown = mTrackView.getBottom();
mTrackViewTop = mTrackView.getTop();
}
super.onScrollChanged(l, t, oldl, oldt);
if (getScrollY() >= mTrackViewTop) {
mTopReachListener.onReachTop();
} else if (getScrollY() <= mTrackViewDown) {
mTopReachListener.onLeaveTop();
}
}
}
And activity code, which will observe current scroll position and show / hide second buttons panel:
public class MyActivity extends Activity implements ObservableScrollView.OnViewReachTop {
private static final String TAG = "MyActivity";
private View mButtonsPanel;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mButtonsPanel = findViewById(R.id.top_button_panel);
((ObservableScrollView)findViewById(R.id.sv_entete)).setViewTopTracking(R.id.middle_button_panel, this);
}
#Override
public boolean onCreateOptionsMenu(final Menu menu) {
getMenuInflater().inflate(R.menu.action_bar, menu);
return true;
}
#Override
public void onReachTop() {
mButtonsPanel.setVisibility(View.VISIBLE);
}
#Override
public void onLeaveTop() {
mButtonsPanel.setVisibility(View.GONE);
}
}
Second way: take ScrollView code, analyze it and make possible to fix some view on the top. This way is more complex, but possible to implement. Please, investigate it (if first one is not applicable to your code / layout) and ask additional questions if face some particular problems with it.

Related

DialogPreference in Full Screen Width

I created a custom dialog preference in my Android application, but I can not figure out how to get the dialog which is displayed to span the complete width of the display.
image of dialog with too much space on left and right side
I found many proposed solutions to get a normal Dialog in full screen mode
Android get full width for custom Dialog
https://gist.github.com/koocbor/88db64192638bff09aa4
http://blog.jimbaca.com/force-dialog-to-take-up-full-screen-width/
But setting the attributes via getWindow does not work:
#Override
public Dialog getDialog() {
Dialog dialog = super.getDialog();
dialog.getWindow().setLayout(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
// or
// dialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
return dialog;
}
And applying a full screen theme to my dialogs root element didn't do the job neither:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
[...]
android:theme="#style/FullscreenTheme">
Moreover I'm not able to access the onCreate Method (at least I don't know how) of the Dialog, to set the style there.
Did anyone had the same problem and figured out a solution for this very specific issue?
My layout:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:animateLayoutChanges="true"
android:orientation="vertical"
android:padding="0dp"
android:paddingTop="#dimen/preferences_dialog_def_padding"
android:paddingBottom="#dimen/preferences_dialog_def_padding">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<View
android:layout_width="match_parent"
android:layout_height="2dp"
android:layout_marginTop="-2dp"
android:background="#color/expandable_preference_divider"/>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="#dimen/preferences_expandable_margin_top_bottom"
android:layout_marginTop="#dimen/preferences_expandable_margin_top_bottom">
<RelativeLayout
android:id="#+id/icon_wrapper_choose"
android:layout_width="#dimen/preferences_expandable_icon_wrapper_size"
android:layout_height="#dimen/preferences_expandable_icon_wrapper_size"
android:layout_marginBottom="0dp"
android:layout_marginEnd="#dimen/preference_expandable_icon_margin"
android:layout_marginStart="#dimen/preference_expandable_icon_margin"
android:layout_marginTop="0dp"
android:gravity="center">
<ImageView
android:layout_width="#dimen/preferences_expandable_icon_size"
android:layout_height="#dimen/preferences_expandable_icon_size"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:cropToPadding="true"
android:scaleType="centerCrop"
android:src="#drawable/ic_settings_white_36dp"/>
</RelativeLayout>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_toEndOf="#+id/icon_wrapper_choose"
android:paddingBottom="#dimen/preferences_expandable_text_padding_top_bottom"
android:paddingTop="#dimen/preferences_expandable_text_padding_top_bottom"
android:text="#string/pref_wheel_circumference_choose"
android:textColor="#color/colorAccent"
android:textSize="#dimen/text_size_medium"
android:textStyle="bold"/>
</RelativeLayout>
<TextView
android:layout_width="match_parent"
android:layout_marginEnd="#dimen/preference_expandable_icon_margin"
android:layout_marginStart="#dimen/preference_expandable_icon_margin"
android:layout_height="wrap_content"
android:text="#string/etrto_hint"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:minHeight="?android:attr/listPreferredItemHeight"
android:orientation="horizontal"
android:paddingBottom="20dp"
android:paddingEnd="?android:attr/scrollbarSize"
android:layout_marginStart="#dimen/preference_expandable_icon_margin"
android:weightSum="3"
>
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/etrto"/>
<Spinner
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="2"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:orientation="horizontal"
android:paddingBottom="20dp"
android:paddingEnd="?android:attr/scrollbarSize"
android:layout_marginStart="#dimen/preference_expandable_icon_margin"
android:weightSum="3"
>
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/manufacturer"/>
<Spinner
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="2"/>
</LinearLayout>
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="2dp"
android:layout_marginTop="-2dp"
android:background="#color/expandable_preference_divider"/>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/preference_category_wrapper"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:animateLayoutChanges="true"
android:orientation="vertical"
android:padding="5dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="#dimen/preferences_expandable_margin_top_bottom"
android:layout_marginTop="#dimen/preferences_expandable_margin_top_bottom">
<RelativeLayout
android:id="#+id/icon_wrapper_manual"
android:layout_width="#dimen/preferences_expandable_icon_wrapper_size"
android:layout_height="#dimen/preferences_expandable_icon_wrapper_size"
android:layout_marginBottom="0dp"
android:layout_marginEnd="#dimen/preference_expandable_icon_margin"
android:layout_marginStart="#dimen/preference_expandable_icon_margin"
android:layout_marginTop="0dp"
android:gravity="center">
<ImageView
android:id="#+android:id/icon"
android:layout_width="#dimen/preferences_expandable_icon_size"
android:layout_height="#dimen/preferences_expandable_icon_size"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:cropToPadding="true"
android:scaleType="centerCrop"
android:src="#drawable/ic_edit_white_36dp"/>
</RelativeLayout>
<TextView
android:id="#+android:id/title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toEndOf="#+id/icon_wrapper_manual"
android:paddingBottom="#dimen/preferences_expandable_text_padding_top_bottom"
android:paddingTop="#dimen/preferences_expandable_text_padding_top_bottom"
android:text="#string/pref_wheel_circumference_manually"
android:textColor="#color/colorAccent"
android:textSize="#dimen/text_size_medium"
android:textStyle="bold"/>
</RelativeLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:minHeight="?android:attr/listPreferredItemHeight"
android:orientation="horizontal"
android:paddingBottom="20dp"
android:paddingEnd="?android:attr/scrollbarSize"
android:layout_marginStart="#dimen/preference_expandable_icon_margin"
android:weightSum="2.5"
>
<EditText
android:id="#+id/pref_dialog_wheelcircumference_et"
android:layout_width="0dp"
android:layout_weight="2"
android:layout_height="wrap_content"
android:textAlignment="textEnd"
android:textColor="#color/colorFont"
android:textSize="#dimen/text_size_small"
android:inputType="number"/>
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.5"
android:textAlignment="center"
android:text="#string/wheel_circumference_unit"/>
</LinearLayout>
</LinearLayout>
</LinearLayout>
My custom preference class
public class WheelCircumferencePreference extends android.preference.DialogPreference {
private static String TAG = "CustomSwitchPreference";
private int mWheelCircumference;
public static int WHEEL_CIRCUMFERENCE_DEFAULT = 2125;
private int mDialogLayoutResId = R.layout.pref_dialog_wheelcircumference;
public WheelCircumferencePreference(Context context) {
this(context, null);
}
public WheelCircumferencePreference(Context context, AttributeSet attrs) {
this(context, attrs, R.attr.dialogPreferenceStyle);
}
public WheelCircumferencePreference(Context context, AttributeSet attrs,
int defStyleAttr) {
super(context, attrs, defStyleAttr);
setLayoutResource(R.layout.custom_preference);
setDialogLayoutResource(mDialogLayoutResId);
setPositiveButtonText(getContext().getString(R.string.dialog_save));
setNegativeButtonText(getContext().getString(R.string.dialog_cancel));
}
#Override
protected Object onGetDefaultValue(TypedArray a, int index) {
// Default value from attribute. Fallback value is set to WHEEL_CIRCUMFERENCE_DEFAULT.
return a.getInteger(index, WHEEL_CIRCUMFERENCE_DEFAULT);
}
#Override
protected void onSetInitialValue(boolean restorePersistedValue,
Object defaultValue) {
would load value from shared preferences
if (restorePersistedValue) {
mWheelCircumference = getPersistedInt(WHEEL_CIRCUMFERENCE_DEFAULT);
} else {
mWheelCircumference = (Integer) defaultValue;
persistInt(mWheelCircumference);
}
}
private EditText mWheelCircumferenceEt;
#Override
protected void onBindDialogView(View view) {
mWheelCircumferenceEt = view.findViewById(R.id.pref_dialog_wheelcircumference_et);
if (mWheelCircumferenceEt == null) {
throw new IllegalStateException("preference dialog view must contain" +
" a EditText with id 'pref_dialog_wheelcircumference_et'");
}
mWheelCircumferenceEt.setText(Integer.toString(mWheelCircumference));
super.onBindDialogView(view);
}
#Override
public Dialog getDialog() {
//Dialog dialog = super.getDialog();
// WindowManager.LayoutParams p = getDialog().getWindow().getAttributes();
//p.height = LinearLayout.LayoutParams.WRAP_CONTENT;
//dialog.getWindow().setAttributes(p);
return dialog;
}
#Override
protected void onDialogClosed(boolean positiveResult) {
if (positiveResult) {
String circumferenceText = mWheelCircumferenceEt.getText().toString();
try {
mWheelCircumference = Integer.parseInt(circumferenceText);
} catch (Exception e) {
NLog.e(TAG, "onDialogClosed - ", e);
mWheelCircumference = WheelCircumferencePreference.WHEEL_CIRCUMFERENCE_DEFAULT;
}
persistInt(mWheelCircumference);
}
}
Edit:
Actually I only want the dialog to span over the full width of the screen, not the height. If I would use a additional PreferenceFragment (as the DialogPreference is already embedded in a PreferenceFragment ) the "Dialog" (aka Fragment) would take the complete width and height (i guess).
I already implemented a solution without a DialogPrefrence, that works but is not exactly elegant
using just a normal EditTextPreference
adding an onPreferenceClickListener to this preference in my SettingsFragment Code
the ClickListener displays a simple Dialog
Example:
Preference preference = findPreference(EXAMPLE_PREFRENCE);
if (preference != null) {
preference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
#Override
public boolean onPreferenceClick(Preference preference) {
// showDialog();
}
});
But as I have a lot of preferences which will display dialogs the code for the dialog creation and display bloads the SettingsFragment and makes it nearly unreadable. Therefore I thought it would be a nice solution to put the responsibility of displaying the dialog and handling the preference values to the Preference and the XML layout.
Unfortunately I got stuck with the "full width issue" mentioned above.
Note: fixed the code of getDialog as I tested different versions (also in combination with the xml theme set)

Finally I did find a solution for this problem:
Fetch the AlertDialog of the Preference in showDialog method
#Override
protected void showDialog(Bundle state) {
super.showDialog(state);
CustomDialogPreference.makeDialogFullScreen((AlertDialog) getDialog());
}
make it span the complete width:
public static void makeDialogFullScreen(AlertDialog d) {
NLog.d(TAG, "makeDialogFullScreen enter ");
if (d != null) {
ViewGroup.LayoutParams params = d.getWindow().getAttributes();
if (params != null) {
params.width = WindowManager.LayoutParams.MATCH_PARENT;
params.height = WindowManager.LayoutParams.WRAP_CONTENT;
d.getWindow().setAttributes((android.view.WindowManager.LayoutParams) params);
}
}
}

Try this in the onResume of your dialog.
// Store access variables for window and blank point
Window window = getDialog().getWindow();
Point size = new Point();
// Store dimensions of the screen in `size`
Display display = window.getWindowManager().getDefaultDisplay();
display.getSize(size);
// Set the width of the dialog proportional to 75% of the screen width and height
window.setLayout((int) (size.x * 0.75), (int) (size.y * 0.75));
window.setGravity(Gravity.CENTER);
// Call super onResume after sizing
Adjust accordingly for 100%. It works great for a dialogFragment. Haven't tried it for your case though.

Wait, you're not looking for the bog-standard 'Pref settings user options appear in a dialog' thing are you? That's almost definitely already done in AndroidStudio's add activity...> Settings Activity in boiler plate, check it out, or look for sample settings apps
Anyway, I do actually have a fullscreen dialog in my app, although it purposely doesn't fill the full screen, and I actually use an activity with some fragments now instead.
Personally I think this is what your problem is, I remember having this exact issue when I first needed a dialog like this. You should just use activities and have up navigation (if you want a full screen "popup" type thing you could use the Navigation pattern that makes the home/up button an 'X' instead of a '<');
Or anything else, you don't need to have a dialog explicitly, and if you do then extend activity or dialog and get what you want.
Here's my activity stuff in case it's any use
my theme:
<style name="AppTheme.FullScreenDialog"
parent="#style/Theme.AppCompat.Light.Dialog">
<item name="windowActionBar">true</item>
<item name="windowNoTitle">true</item>
</style>
my onCreate gist:
#Override
public void onCreate(#Nullable Bundle savedInstanceState) {
...
requestWindowFeature(Window.FEATURE_NO_TITLE);
...
super.onCreate(savedInstanceState);
setContentView(getConcreteContentView());
ButterKnife.bind(this);
setUpUIComponents();
...
}
my general layout gist:
<CoordinatorLayout>
<AppBarLayout>
<android.support.v7.widget.Toolbar/>
</android.support.design.widget.AppBarLayout>
<RelativeLayout
android:id="#+id/container_main"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:animateLayoutChanges="true"
android:paddingTop="6dp"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<RelativeLayout
android:id="#+id/container_recycler"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/tv_security_word"
android:paddingEnd="18dp"
android:paddingStart="18dp" />
<RelativeLayout
android:id="#+id/container_security"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_below="#+id/container_recycler"
android:minHeight="150dp"
android:paddingEnd="18dp"
android:paddingStart="18dp"
android:visibility="visible" />
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/security_container"
android:layout_centerHorizontal="true"
android:contentDescription="#string/app_name"
android:minHeight="50dp"
android:scaleType="centerInside" />
</RelativeLayout>
</android.support.design.widget.CoordinatorLayout>
Bon Chance!

Unwanted spaces in recyclerview items in android

I have spaces on recyclerview of my app and i don't know why are there because i have done the samething using the recyclerview and this adapter and did not added unwanted space...but now it is.
Help please
Here is my home layout
<?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"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="ideias.prime.mungano.Home"
tools:showIn="#layout/activity_home">
<android.support.v7.widget.RecyclerView
android:id="#+id/clients_rv"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
And here is the recyclerview Item model
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/tools"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v7.widget.CardView
android:id="#+id/cl_CardView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?android:attr/selectableItemBackground"
android:clickable="true"
card_view:cardBackgroundColor="#color/colorAccent"
card_view:cardCornerRadius="12dp"
card_view:cardUseCompatPadding="true"
card_view:contentPadding="6dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<TextView
android:id="#+id/cl_name"
android:layout_width="69dp"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:ellipsize="end"
android:fitsSystemWindows="true"
android:padding="4dp"
android:singleLine="true"
android:text="#string/cl_name"
android:textColor="#color/colorPrimaryText"
android:textSize="15sp"
android:typeface="serif" />
<TextView
android:id="#+id/nome_do_cliente"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toEndOf="#+id/cl_name"
android:ellipsize="end"
android:fitsSystemWindows="true"
android:padding="4dp"
android:singleLine="true"
android:text="#string/programmer"
android:textColor="#color/colorPrimaryText"
android:textSize="15sp"
android:typeface="serif" />
<TextView
android:id="#+id/cl_work"
android:layout_width="82dp"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_below="#+id/cl_name"
android:ellipsize="end"
android:fitsSystemWindows="true"
android:padding="4dp"
android:singleLine="true"
android:text="#string/cl_work"
android:textAlignment="center"
android:textColor="#color/colorPrimaryText"
android:textSize="15sp"
android:typeface="serif" />
<TextView
android:id="#+id/trabalho_do_cliente"
android:layout_width="99dp"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/cl_work"
android:layout_toEndOf="#+id/cl_work"
android:ellipsize="end"
android:fitsSystemWindows="true"
android:singleLine="true"
android:text="#string/primeIdeas"
android:textColor="#color/colorPrimaryText"
android:textSize="15sp"
android:typeface="serif" />
<TextView
android:id="#+id/cl_phone"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_below="#+id/cl_work"
android:fitsSystemWindows="true"
android:padding="4dp"
android:text="#string/cl_phone"
android:textColor="#color/colorPrimaryText"
android:textSize="15sp" />
<TextView
android:id="#+id/telefone_do_cliente"
android:layout_width="99dp"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/cl_phone"
android:layout_toEndOf="#+id/cl_work"
android:ellipsize="end"
android:fitsSystemWindows="true"
android:singleLine="true"
android:text="#string/primeIdeas"
android:textColor="#color/colorPrimaryText"
android:textSize="15sp"
android:typeface="serif" />
<TextView
android:id="#+id/cl_LP"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/trabalho_do_cliente"
android:layout_alignParentEnd="true"
android:ellipsize="end"
android:ems="10"
android:fitsSystemWindows="true"
android:padding="4dp"
android:singleLine="true"
android:text="#string/cl_LP"
android:textColor="#color/colorPrimaryText"
android:textSize="15sp" />
<TextView
android:id="#+id/cl_LP_info"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/telefone_do_cliente"
android:layout_alignParentEnd="true"
android:ellipsize="end"
android:ems="10"
android:fitsSystemWindows="true"
android:padding="4dp"
android:singleLine="true"
android:text="#string/cl_Lp_info"
android:textColor="#color/colorPrimaryText"
android:textSize="15sp" />
<TextView
android:id="#+id/cl_id"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="53dp"
android:layout_toEndOf="#+id/cl_phone"
android:ellipsize="end"
android:ems="10"
android:fitsSystemWindows="true"
android:padding="4dp"
android:singleLine="true"
android:text="#string/Id"
android:textColor="#color/colorPrimaryText"
android:textSize="15sp"
android:visibility="gone" />
</RelativeLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
And here is the Adapter
public class Rv_adapter extends RecyclerView.Adapter<Rv_adapter.Holder> {
private Context context;
private List<Model> list = new ArrayList<>();
private Face f;
public Rv_adapter(Context c) {
context = c;
}
public Rv_adapter(Context c, List<Model> l) {
this.context = c;
this.list = l;
}
public void Listenner(Face interfaCe) {
this.f = interfaCe;
}
#Override
public Holder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(context.getApplicationContext()).inflate(R.layout.rv_model, parent, false);
return new Holder(v);
}
#Override
public void onBindViewHolder(Holder holder, int position) {
holder.Id.setText(list.get(position).getId());
holder.Name.setText(list.get(position).getName());
holder.Lp.setText(list.get(position).getLp());
holder.Phone.setText(list.get(position).getPhone());
holder.Work.setText(list.get(position).getWork());
}
#Override
public int getItemCount() {
return list.size();
}
class Holder extends RecyclerView.ViewHolder {
private CardView c;
private TextView Id, Name, Work, Phone, Lp;
public Holder(View i) {
super(i);
c = (CardView) i.findViewById(R.id.cl_CardView);
Id = (TextView) i.findViewById(R.id.cl_id);
Name = (TextView) i.findViewById(R.id.nome_do_cliente);
Work = (TextView) i.findViewById(R.id.trabalho_do_cliente);
Phone = (TextView) i.findViewById(R.id.telefone_do_cliente);
Lp = (TextView) i.findViewById(R.id.cl_LP_info);
}
} // end
public interface Face {
void Clicked(View v, int position, String cl_id);
}
}
Here goes the screenshots of the unwanted spaces on the recyclerview

change your recyclerview Height from android:layout_height="match_parent" to
android:layout_height="wrap_content".
and why you are giving scrolling behavior to Your relative layout ??? RecyclerView already hve that!

There is no problem with your recyclerview, you should make changes in R.layout.rv_model file. You have set android:fitsSystemWindows="true" property to<TextView>.
Most of the time, your app won’t need to draw under the status bar or the navigation bar, but if you do: you need to make sure interactive elements (like buttons) aren’t hidden underneath them. That’s what the default behavior of the android:fitsSystemWindows=“true” attribute gives you: it sets the padding of the View to ensure the contents don’t overlay the system windows.
A few things to keep in mind:
fitsSystemWindows is applied depth first — ordering matters: it’s the first View that consumes the insets that makes a difference
Insets are always relative to the full window — insets may be applied even before layout happens, so don’t assume the default behavior knows anything about the position of a View when applying its padding
Any other padding you’ve set is overwritten — you’ll note that paddingLeft/paddingTop/etc is ineffective if you are using android:fitsSystemWindows=”true” on the same View
And, in many cases, such as a full screen video playback, that’s enough. You’d have your full bleed view with no attribute and another full screen ViewGroup with android:fitsSystemWindows=”true” for your controls that you want inset.
Or maybe you want your RecyclerView to scroll underneath a transparent navigation bar — by using android:fitsSystemWindows=”true” in conjunction with android:clipToPadding=”false”, your scrolling content will be behind the controls but, when scrolled to the bottom, the last item will still be padded to be above the navigation bar (rather than hidden underneath!).
Check if you want more information about android:fitsSystemWindows

Your item layout is filling one length of your screen each.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/tools"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent" <!-- Here needs to be wrap_content -->
android:orientation="vertical">
<android.support.v7.widget.CardView
android:id="#+id/cl_CardView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
And remove android:fitsSystemWindows="true" from the TextViews because they don't need to fit the system window.

Swipe to Add view in android

I want to achieve something like the below gif:
What I have done so far:
I am using a swipelayout using I am able to implement the part where if you swipe the row item, it shows you the "Add to Cart" icon but I am not able to implement the animation where it zooms in the cart icon and add it to cart (I am not able to create a hook where I can call the addToCart function).
Below is my code:
Row XML File:
<RelativeLayout
android:id="#+id/swipe_view"
android:layout_width="120dp"
android:layout_height="match_parent"
android:background="#color/colorPrimary"
android:minWidth="96dp">
<ImageView
android:id="#+id/add_to_cart"
android:layout_width="48dp"
android:layout_height="48dp"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_centerVertical="true"
android:layout_marginLeft="#dimen/activity_margin"
android:layout_marginStart="#dimen/activity_margin"
android:background="?attr/selectableItemBackgroundBorderless"
android:clickable="true"
android:padding="#dimen/activity_margin"
android:scaleType="center"
android:src="#drawable/ic_menu_cart"/>
</RelativeLayout>
<RelativeLayout
android:id="#+id/restaurant_menu_details_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingBottom="#dimen/half_activity_margin"
android:paddingLeft="#dimen/activity_margin"
android:paddingRight="#dimen/activity_margin"
android:paddingTop="#dimen/half_activity_margin">
<ImageView
android:id="#+id/item_image"
android:layout_width="56dp"
android:layout_height="56dp"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_centerVertical="true"
android:scaleType="centerCrop"
tools:src="#drawable/placeholder_restaurant"/>
<TextView
android:id="#+id/item_price"
style="#style/secondary_tv"
fontPath="#string/ubuntu_light"
android:layout_width="48dp"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginBottom="#dimen/half_activity_margin"
android:layout_marginLeft="#dimen/half_activity_margin"
android:gravity="center_horizontal"
android:maxLines="2"
tools:text="5KD"/>
<LinearLayout
android:id="#+id/restaurant_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toEndOf="#+id/item_image"
android:layout_toLeftOf="#+id/item_price"
android:layout_toRightOf="#+id/item_image"
android:layout_toStartOf="#+id/item_price"
android:orientation="vertical">
<TextView
android:id="#+id/item_name"
fontPath="#string/ubuntu_mono_regular"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="#dimen/half_activity_margin"
android:layout_marginTop="#dimen/half_activity_margin"
android:gravity="start"
android:textAllCaps="true"
android:textColor="#color/black_primary_text_color"
android:textSize="#dimen/medium_text"
tools:text="Restaurant Name"/>
<TextView
android:id="#+id/item_desc"
style="#style/secondary_tv"
fontPath="#string/ubuntu_light"
android:layout_marginBottom="#dimen/half_activity_margin"
android:layout_marginLeft="#dimen/half_activity_margin"
android:layout_marginTop="4dp"
android:ellipsize="end"
android:maxLines="2"
tools:text="Restaurant Description, max 1 line"/>
</LinearLayout>
</RelativeLayout>
Java Code
from RecyclerView Adapter:
SwipeLayout swipeLayout = (SwipeLayout) itemView.findViewById(R.id.swipe);
swipeLayout.addSwipeListener(new SwipeLayout.SwipeListener() {
#Override
public void onStartOpen(SwipeLayout layout) {
}
#Override
public void onOpen(SwipeLayout layout) {
}
#Override
public void onStartClose(SwipeLayout layout) {
}
#Override
public void onClose(SwipeLayout layout) {
}
#Override
public void onUpdate(SwipeLayout layout, int leftOffset, int topOffset) {
// i tried leveraging the leftOffset which tells me the position of the //layout on the screen but because it is called multiple times, It was //adding many entries to the cart in just one swipe :(
}
#Override
public void onHandRelease(SwipeLayout layout, float xvel, float yvel) {
}
});
I would really appreciate if anyone can suggest a better way to fix this or any open-source library which does such a thing.
Many thanks!
PS: Please add a comment if you need more information from me in order to help me. :)

what I'll write is a best guess based on the information you gave, but it seems that it's all right there:
#Override
public void onUpdate(SwipeLayout layout, int leftOffset, int topOffset) {
float percent = ((float)leftOffset/((float)totalWidth));
// use `percent` to animate the icon, something like:
icon.setAlpha(percent);
}
#Override
public void onOpen(SwipeLayout layout) {
// here is the swipe fully open
addToCart(item); // create the method
layout.close(); // close the layout again
}

Distorted App screen - Android

Our app looks like this on Huawei 8510, and android version is 2.3.5.
This screenshot came from our customer. We disabled screenshot on app, so our customer used another phone to take screenshot.
How is it possible?
this is layout code that i think there is no problem.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
android:layout_width="0px"
android:layout_height="0px"
android:focusable="true"
android:focusableInTouchMode="true" />
<com.asdasd.asdasd.controls.CMScrollView
android:id="#+id/scvAgreement"
style="#style/pm_ContentStyle"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:fadingEdge="none"
android:paddingLeft="0dp"
android:paddingRight="0dp">
<TextView
android:id="#+id/tvAgreement"
style="#style/pm_TextStyle"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center_horizontal"
android:layout_marginLeft="#dimen/pm_content_padding_left"
android:layout_marginRight="#dimen/pm_content_padding_right"
android:gravity="center"
android:text=""
android:typeface="monospace" />
</com.asdasd.asdasd.controls.CMScrollView>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0"
android:orientation="horizontal">
<Button
style="#style/pm_ButtonStyle_Standart"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#drawable/selector_btn_black"
android:gravity="center"
android:onClick="onBtnNegativeClicked"
android:text="#string/pgPrivacy_btnNotAccept"
android:textSize="#dimen/pm_middle_text_size"
android:singleLine="false"/>
<Button
android:id="#+id/btnSendAgreement"
style="#style/pm_ButtonStyle_Standart"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="#dimen/pm_button_margin_left"
android:layout_weight="1"
android:background="#drawable/selector_btn_black"
android:enabled="false"
android:gravity="center"
android:onClick="onBtnSendAgreement"
android:text="#string/pgPrivacy_btnSendAgreement"
android:textSize="#dimen/pm_middle_text_size"
android:singleLine="false"/>
<Button
android:id="#+id/btnPositive"
style="#style/pm_ButtonStyle_Standart"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="#dimen/pm_button_margin_left"
android:layout_weight="1"
android:background="#drawable/selector_btn_orange"
android:enabled="false"
android:gravity="center"
android:onClick="onBtnPositiveClicked"
android:text="#string/pgPrivacy_btnAccept"
android:textSize="#dimen/pm_middle_text_size"
android:singleLine="false"/>
</LinearLayout>
And also, our custom listView
public class CMScrollView extends ScrollView {
public static final String LOG_TAG = "com.asdasd.asdasd.controls.CMScrollView";
private OnScrollViewReachedToEnd onScrollViewReachedToEnd;
public CMScrollView(Context context, AttributeSet st) {
super(context, st);
}
public OnScrollViewReachedToEnd getOnScrollViewReachedToEnd() {
return onScrollViewReachedToEnd;
}
public void setOnScrollViewReachedToEnd(OnScrollViewReachedToEnd onScrollViewReachedToEnd) {
this.onScrollViewReachedToEnd = onScrollViewReachedToEnd;
}
#Override
protected void onScrollChanged(int l, int t, int oldl, int oldt) {
View view = (View) getChildAt(getChildCount() - 1);
int diff = (view.getBottom() - (getHeight() + getScrollY() + view.getTop()));// Calculate the scrolldiff
if (diff == 0) { // if diff is zero, then the bottom has been reached
if (ApplicationController.DEBUGMODE)
Log.d(CMScrollView.LOG_TAG, "MyScrollView: Bottom has been reached");
if (onScrollViewReachedToEnd != null) {
onScrollViewReachedToEnd.onReachedToEnd(this);
}
}
super.onScrollChanged(l, t, oldl, oldt);
}
public interface OnScrollViewReachedToEnd {
void onReachedToEnd(IngScrollView scrollView);
}}
on AndroidManifest GL Version:
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />

One of my friend found a promising Answer after a lot of time & search.
The same kind of issue (Flickering in GUI) is solved by simply Turn OFF the Developer Options
Because if you enable hardware overlay , GPU will be takes care of UI & sometimes there will be some conflict in GUI rendering.

WRAP_CONTENT not working after dynamically adding views

I'm trying to create a fragment that lays out a series of custom views dynamically. The main content for this layout is a RelativeLayout nested in a LinearLayout (to center it horizontally), nested in a ScrollView.
The RelativeLayout has a few TextViews and a 9 patch ImageView that is meant to scale with the dynamically added custom views. However, the image (achievements_bgImageView below) is ending up as the size of the screen, and is not respecting the size of its parent RelativeLayout even after I've added the appropriate amount of custom views. The image scales fine when I manually set the size of achievements_mainLayout (see the commented out lines below), but does nothing if I try to let that RelativeLayout's wrap_content handle its own sizing.
The ScrollView IS respecting the size of the RelativeLayout, as all the content is present, it's simply the imageView that isn't stretching to match the content at this point.
Any help would be appreciated... My manual calculations don't seem to be good enough to account for different devices, despite the fact I'm accounting for screen density and I'm manually forcing the RelativeLayout to a constant width.
It's worth noting that the measured size of the RelativeLayout is always equal to the height of the screen, regardless of whether or not the sum of its content is greater or less than that height. So, essentially, WRAP_CONTENT is simply not doing what it's supposed to be doing. I have nothing referencing any edge of of the RelativeLayout, so circular dependencies shouldn't be a problem.
fragment_achievements.xml
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal">
<RelativeLayout
android:layout_width="320dp"
android:layout_height="wrap_content"
android:id="#+id/achievements_mainLayout">
<ImageView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/achievements_bgImageView"
android:src="#drawable/bkg_achievements9"
android:adjustViewBounds="true"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:layout_marginRight="8dp"
android:layout_centerHorizontal="true"
android:scaleType="fitXY"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Name Field"
android:id="#+id/achievements_nameTextView"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_marginLeft="28dp"
android:layout_marginTop="30dp"/>
<ImageView
android:layout_width="52dp"
android:layout_height="52dp"
android:id="#+id/achievements_avatarImageView"
android:layout_below="#+id/achievements_nameTextView"
android:layout_alignLeft="#+id/achievements_nameTextView"
android:src="#drawable/achieve_avatar"
android:layout_marginTop="5dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Top Moment:"
android:id="#+id/textView2"
android:layout_alignBottom="#+id/achievements_avatarImageView"
android:layout_toRightOf="#+id/achievements_avatarImageView"
android:layout_marginBottom="16dp"
android:layout_marginLeft="4dp"
android:textSize="12dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Me Overall:"
android:id="#+id/textView3"
android:layout_alignTop="#+id/textView2"
android:layout_alignLeft="#+id/textView2"
android:layout_marginTop="16dp"
android:textSize="12dp"/>
<TextView
android:layout_width="52dp"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="153"
android:id="#+id/achievements_totalPointsTextView"
android:gravity="center"
android:layout_alignTop="#+id/achievements_avatarImageView"
android:layout_alignRight="#+id/achievements_bgImageView"
android:layout_alignEnd="#+id/achievements_bgImageView"
android:layout_marginRight="31dp"
android:textColor="#f7a033"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Moment"
android:id="#+id/achievements_topMomentTextView"
android:layout_alignTop="#+id/textView2"
android:layout_toRightOf="#+id/textView2"
android:layout_marginLeft="5dp"
android:textSize="12dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="153"
android:id="#+id/achievements_overallTextView"
android:layout_alignTop="#+id/textView3"
android:layout_toRightOf="#+id/textView3"
android:layout_marginLeft="5dp"
android:textSize="12dp"/>
</RelativeLayout>
</LinearLayout>
</ScrollView>
AchievementFragment.java
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View fragmentView = null;
fragmentView = inflater.inflate(R.layout.fragment_achievements, container, false);
ImageView avatarImageView = (ImageView)fragmentView.findViewById(R.id.achievements_avatarImageView);
...
// Basic Achievement List Setup
RelativeLayout mainLayout = (RelativeLayout)fragmentView.findViewById(R.id.achievements_mainLayout);
AchievementRow currentRow = null;
List achievementTypeList = CampaignManager.sharedManager().sortedAchievementTypeList();
int achievementCount = achievementTypeList.size();
for (int i = 0; i < achievementCount; i++) {
AchievementType achievementType = (AchievementType)achievementTypeList.get(i);
// Every third achievement creates a new row.
if ((i % 3) == 0) {
AchievementRow row = (AchievementRow)inflater.inflate(R.layout.widget_achievementrow, null);
RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
if (currentRow == null) {
layoutParams.addRule(RelativeLayout.BELOW, avatarImageView.getId());
layoutParams.setMargins(10, 70, 10, 0);
} else {
layoutParams.addRule(RelativeLayout.BELOW, currentRow.getId());
layoutParams.setMargins(10, 10, 10, 0);
}
layoutParams.addRule(RelativeLayout.ALIGN_LEFT, backgroundImageView.getId());
layoutParams.addRule(RelativeLayout.ALIGN_RIGHT, backgroundImageView.getId());
row.setLayoutParams(layoutParams);
row.setId(i+1);
mainLayout.addView(row);
currentRow = row;
}
// Now setup the Button
AchievementButton achievementButton = currentRow.buttonForIndex(i % 3);
achievementButton.achievementType = achievementType;
achievementButton.setOnClickListener(achievementButtonListener);
achievementButton.setVisibility(View.VISIBLE);
CacheManager.sharedManager().fetchAchievementThumbnail(getActivity(), achievementButton, achievementType);
}
// This is the manual scaling of mainLayout
// float scale = getResources().getDisplayMetrics().density;
// float headerHeight = scale * 150.0f;
// float rowHeight = scale * 78.0f;
// ViewGroup.LayoutParams mainLayoutParams = mainLayout.getLayoutParams();
// mainLayoutParams.height = (int)(headerHeight + (Math.ceil(achievementCount / 3.0) * rowHeight));
return fragmentView;
}

Try calling requestLayout on the children.
I recently had a similar problem and was similarly frustrated that things like invalidate and requestLayout seemed to do nothing. What I didn't understand is that requestLayout doesn't propagate down to its children; it propagates up to its parents. To re-measure something that was previously measured, I had to call requestLayout on the View that changed rather than the View I actually wanted to resize.

Android does NOT refresh layout of views with "wrap_content" once it has been displayed.
So if you add a child view, or modify the content dynamically, you're screwed.
I do agree that this is a nightmare and a real flaw in Android UI!
To solve that, I've written a static class that recomputes the sizes and forces the update of the layout for the views with "wrap_content"
The code and instructions to use are available here:
https://github.com/ea167/android-layout-wrap-content-updater
Enjoy!

A simple way to update the size of a View with WRAP_CONTENT is change the visibility to GONE and back to the old visibility.
int visibility = view.getVisibility();
view.setVisibility(View.GONE);
view.setVisibility(visibility);
TESTED ON ANDROID JELLY BEAN IN 2014
MAY NOT WORK ON NEWER ANDROID VERSIONS

Ok, I solved this by manually measuring the RelativeLayout immediately after adding all the views and setting the mainLayoutParams height explicitly. I wish I was smarter and knew why it wasn't automatically doing this correctly in the first place, but oh well.
...
mainLayout.measure(0, 0);
ViewGroup.LayoutParams mainLayoutParams = mainLayout.getLayoutParams();
mainLayoutParams.height = mainLayout.getMeasuredHeight() + 10;
...

I encountered same issue when working with LinearLayout which has wrap_content and one child as TextView match_parent.
To fix this I did this:
Remove the TextView programatically and then add it again.
linearLayout.removeView(textView)
linearLayout.addView(textView)
I know it sounds stupid but it works.
In my case calling invalidate didn't work, only this worked.
Depending on your implementation you need to take care of view index inside its parent

You are getting this problem because you set your layout first and then add its content dynamically.
You are telling the layout to wrap to the content that is not yet their. Try using your layout inflater after you have grabbed your content

You should use NestedScrollView Instead of simple scrollview.
here is my sample Activity Layout code
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#F0ECE6"
>
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabMode="fixed"
app:tabIndicatorHeight="6dp"
android:layout_marginTop="-10dp"
app:tabGravity="fill"/>
</android.support.design.widget.AppBarLayout>
<wsit.rentguru.utility.CustomViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
here is code for custom viewpager
public class CustomViewPager extends ViewPager {
private boolean enabled;
public CustomViewPager(Context context, AttributeSet attrs) {
super(context, attrs);
this.enabled = false;
}
#Override
public boolean onTouchEvent(MotionEvent event) {
if (this.enabled) {
return super.onTouchEvent(event);
}
return false;
}
#Override
public boolean onInterceptTouchEvent(MotionEvent event) {
if (this.enabled) {
return super.onInterceptTouchEvent(event);
}
return false;
}
public void setPagingEnabled(boolean enabled) {
this.enabled = enabled;
}
}
setup function for viewpager in the activity
private void setupViewPager(ViewPager viewPager) {
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFragment(new SampleFragment(), " ");
viewPager.setAdapter(adapter);
}
class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public ViewPagerAdapter(FragmentManager manager) {
super(manager);
}
#Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
#Override
public int getCount() {
return mFragmentList.size();
}
public void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
#Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
here is the sample SampleFragment layout code
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#F0ECE6"
android:fillViewport="true"
android:scrollbars="vertical"
android:animateLayoutChanges="true"
xmlns:android="http://schemas.android.com/apk/res/android">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#F0ECE6"
android:focusableInTouchMode="true"
>
<Spinner
android:id="#+id/product_category"
android:layout_margin="20dp"
android:layout_width="match_parent"
android:layout_height="40dp"
android:background="#drawable/edittext_rectangle_box"
android:gravity="center|left"
android:textSize="14sp"
android:paddingLeft="10dp"
android:drawableRight="#drawable/ic_down_arrow"
/>
<Spinner
android:id="#+id/product_sub_category"
android:layout_below="#+id/product_category"
android:layout_marginRight="20dp"
android:layout_marginLeft="20dp"
android:layout_width="match_parent"
android:layout_height="40dp"
android:gravity="center|left"
android:visibility="gone"
android:paddingLeft="10dp"
android:background="#android:color/white"
android:drawableRight="#drawable/ic_down_arrow"
/>
<EditText
android:id="#+id/product_title"
android:layout_below="#+id/product_sub_category"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="15dp"
android:background="#android:color/white"
android:hint="PRODUCT TITLE"
android:singleLine="true"
android:imeOptions="actionDone"
android:layout_width="match_parent"
android:gravity="center|left"
android:padding="10dp"
android:textSize="14sp"
android:textColorHint="#000000"
android:layout_height="40dp" />
<LinearLayout
android:id="#+id/availability_layout"
android:layout_below="#+id/product_title"
android:layout_marginRight="20dp"
android:layout_marginLeft="20dp"
android:layout_marginTop="20dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/availability"
android:textStyle="bold"
android:paddingBottom="10dp"
android:textSize="14sp"
/>
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:weightSum="2">
<Button
android:id="#+id/from"
android:background="#android:color/white"
android:hint="FROM"
android:layout_weight="1"
android:gravity="center|left"
android:padding="10dp"
android:textSize="14sp"
android:textStyle="normal"
android:textColorHint="#000000"
android:layout_width="0dp"
android:layout_height="40dp"
android:layout_marginRight="10dp"/>
<Button
android:id="#+id/to"
android:background="#android:color/white"
android:hint="TO"
android:layout_weight="1"
android:gravity="center|left"
android:padding="10dp"
android:textSize="14sp"
android:textColorHint="#000000"
android:layout_width="0dp"
android:layout_height="40dp"
android:layout_marginLeft="10dp"/>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:id="#+id/product_location_layout"
android:layout_below="#+id/availability_layout"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="20dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/product_location"
android:textStyle="bold"
android:paddingBottom="10dp"
android:textSize="14sp"
/>
<Spinner
android:id="#+id/state_spinner"
android:layout_width="match_parent"
android:layout_height="40dp"
android:background="#drawable/edittext_rectangle_box"
android:gravity="center|left"
android:textSize="14sp"
android:layout_marginBottom="10dp"
android:drawableRight="#drawable/ic_down_arrow"
android:paddingLeft="10dp"
/>
<EditText
android:id="#+id/area"
android:background="#android:color/white"
android:hint="Area"
android:gravity="center|left"
android:padding="10dp"
android:textSize="14sp"
android:textColorHint="#000000"
android:layout_width="match_parent"
android:layout_height="40dp"
android:singleLine="true"
android:imeOptions="actionNext"
android:layout_marginBottom="10dp"
/>
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:weightSum="2">
<EditText
android:id="#+id/zipCode"
android:background="#android:color/white"
android:hint="Zip Code"
android:layout_weight="1"
android:gravity="center|left"
android:padding="10dp"
android:textSize="14sp"
android:textColorHint="#000000"
android:layout_width="0dp"
android:layout_height="40dp"
android:singleLine="true"
android:imeOptions="actionNext"
android:layout_marginRight="10dp"/>
<EditText
android:id="#+id/city"
android:background="#android:color/white"
android:hint="City"
android:layout_weight="1"
android:gravity="center|left"
android:padding="10dp"
android:textSize="14sp"
android:singleLine="true"
android:imeOptions="actionDone"
android:textColorHint="#000000"
android:layout_width="0dp"
android:layout_height="40dp"
android:layout_marginLeft="10dp"/>
</LinearLayout>
</LinearLayout>
<Button
android:id="#+id/tab1_next"
android:layout_width="150dp"
android:layout_height="40dp"
android:text="NEXT"
android:layout_below="#+id/product_location_layout"
android:layout_margin="20dp"
android:layout_alignParentRight="true"
android:background="#color/next_button"
android:textColor="#android:color/white"
android:layout_marginBottom="20dp"
/>
</RelativeLayout>
</android.support.v4.widget.NestedScrollView>

Set the layout parameters again(width and height), right after adding the view. This worked for me.
if the parent View is a FrameLayout, then do something like this:
ImageView view = (ImageView) LayoutInflater.from(activity).inflate(R.layout.image_object_view, null);
imageObjectsHolder.addView(view);
FrameLayout.LayoutParams param = new FrameLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
view.setLayoutParams(param);

My problem was fixed by seting layout_width to some specific dp.
So changing from "wrap content" or "match parent"
to
android:layout_width="300dp"
will fix it, but i know it's not solution for all cases. But maybe you have some parent width, so you can apply the width to the textview.
height leave with wrap_content, and it will work.

Develop Reference

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