Develop Reference

How to scroll an EditText with listview to the very top of the layout in fragment?

How to scroll an EditText with listview to the very top of the layout when keyborad is up on focus EditText in fragment?
i desgin a custom spinner with edit text and listview and have almost five spinner in the Scrollview i want when i click on edittext then edit text and its list scroll up and full visible in the screen
what happen with me you can see on screen shot the list is not fully visible and it has fixed height.

it's so simple
you just have to place your recyclerview/listview and editTex field inside ScrollView add add android:nestedScrollingEnabled="false" in your recylcer view and you are good to go!
Sample Code:
<ScrollView
android:layout_width="match_parent"
android:layout_height="0dp"
android:fillViewport="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toBottomOf="#id/top_toolbar">
<EditText
android:id="+#id/editText"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/rView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:nestedScrollingEnabled="false"
android:overScrollMode="never"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
tools:itemCount="5" />
</ScrollView>

How add multiple TextView inside an ImageButton?

Is it possible to add multiple TextView inside one ImageButton with colour background ?
The core need is to have a button with the action text on it, and a subtext nearby explaining the action or giving other information related to the action. This subtext can vary from time to time.
Considering this requirement, one solution is to have a normal button and a subtext below, not clickable. But I find it messy. A better approach which I like is, on iOS for instance, to have a clickable UIView containing the action as bold text and the explanation as light text. See the image bellow containing 4 buttons :
How to achieve the same on Android with Java ? The closest I can have is to have an ImageButton bellow a TextView, and it does not sound right.
Is possible to nest TextViews inside an ImageButton ? If not, what is the best alternative ?

I hope this may be useful it explains how to position a textView within and in front of a imageView in the XML.
TextView inside of ImageButton/ImageView XML - Android Dev
Obviously make sure each view has a unique id/name which you can assign as shown here on this link
Sorry I cannot explain specifically myself but it has been a while since developing in Java for Android.

I dont know why you want this behaviour but you can make a container for your views and add a click listener to the whole view. you can also use it anywhere.
an example of this would be.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/container"
android:layout_width="match_parent"
android:background="#drawable/container_background"
android:layout_height="wrap_content">
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:layout_weight="0.33"
/>
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:layout_weight="0.33"
/>
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:layout_weight="0.33"
/>
add a selector background
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:color="#color/text_pressed" />
<item android:color="#color/normal" />
</selector>
and the listener
findViewById(R.id.container).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});

Overlaying slider element on top of CardView

I am trying to build a slider that slides on top of my current view in Android. I built the slider using the SlideUp library found here https://github.com/mancj/SlideUp-Android. The slider is taking the inner RelativeLayout as a view source. When I pull up the slider it ends up behind the CardView. I've looked through all the methods in the library and there isn't one that allows you to move the slider to the foreground. I've also tried to bring the slider view to foreground with .bringToFront() method. Moving the slider view before the CardView in the .xml file does nothing either. Is there a good way to bring the slider to foreground... or the CardView in the background? (without hiding the CardView)
JAVA
//code to build slider
View slideView = findViewById(R.id.slider);
//tried putting slideView.bringToFront() here before passing it to the object but that did nothing
SlideUp slideUp = new SlideUpBuilder(slideView)
.withStartState(SlideUp.State.HIDDEN)
.withStartGravity(Gravity.BOTTOM)
.build();
//code to bring up slider. View "share" exists, it's just irrelevant so I didn't include in the .xml file
buttonView.findViewById(R.id.share).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
//tried putting slideView.bringToFront() here as well
slideUp.toggle(); //toggles slider up/down
}
});
XML
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:background="#color/background"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginRight="5dp"
android:layout_marginLeft="5dp"
android:layout_marginTop="20dp"
android:layout_marginBottom="60dp">
</android.support.v7.widget.CardView>
<RelativeLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/slider"
android:background="#color/primary">
</RelativeLayout>
</RelativeLayout>

I figured it out. I found out I can add android:elevation="2dp" for the slider and 0dp for the CardView

android:animateLayoutChanges won't work in parent layout

Suppose I have a layout file structured like this:
<LinearLayout android:id="#+id/main" android:orientation="vertical" android:animateLayoutChanges="true">
<EditText>
<TextView android:id="#+id/header1">
<LinearLayout android:id="#+id/insertionPoint" android:orientation="vertical" android:animateLayoutChanges="true">
</LinearLayout>
<TextView android:id="#+id/header2">
</LinearLayout>
I want to dynamically add text fields to the Layout insertionPoint and I would like to see an animation of the elements below it (in this case, header2) sliding down.
Using android:animateLayoutChanges only animates the elements in the layout insertionPoint, so there is no animation for header2. What should I do?
Just to be more clear: what I would like to do here is something like the animations that we can see in the People app in ICS when we add more fields, like telephone numbers, to a contact.
Thank you!

API 16 added the LayoutTransition.CHANGING animation type, however it is disabled by default.
To enable:
LinearLayout linearLayout = (LinearLayout) findViewById(R.id.main);
linearLayout.getLayoutTransition().enableTransitionType(LayoutTransition.CHANGING);
Nice DevBytes video: https://www.youtube.com/watch?v=55wLsaWpQ4g

AlertDialog style buttons for an Activity

I have an activity with a Save and Cancel button at the bottom.
In AlertDialog, the buttons are displayed inside a styled container view of some sort.
How could I give the buttons in my Activity that same appearance? Specifically, how could I apply the style of the button container view in the AlertDialog to say a LinearLayout in my Activity containing the buttons?
Thanks

There are solutions given elsewhere that work. In short, you can simply use style attributes in your xml to achieve this. For instance, style="?android:attr/buttonBarStyle" and style="?android:attr/buttonBarButtonStyle" will do the job (for API 11+). Here is an example of two buttons horizontally put together.
<LinearLayout
style="?android:attr/buttonBarStyle"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:measureWithLargestChild="true"
android:orientation="horizontal"
android:paddingTop="0dip" >
<Button
style="?android:attr/buttonBarButtonStyle"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text= "Ok" />
<Button
style="?android:attr/buttonBarButtonStyle"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Cancel" />
</LinearLayout>
The only thing that remains, is that there is a horizontal line right above the buttons in an alertDialog, which the above code will not create. If you want to have that horizontal line, it should be added manually in the xml, above the LinearLayout. This will give you the horizontal line:
<View
android:layout_width="fill_parent"
android:layout_height="1dp"
android:layout_marginBottom="0dp"
android:background="?android:attr/dividerVertical" />

I do some thing like this:
LinearLayout dialogLayout = (LinearLayout) ((LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(R.layout.dialog_addeditrecord, null);
I then use the dialogLayout to call findViewById() to pull in the buttons and other views and setup OnClickListeners and such...
then to show the dialog:
builder = new AlertDialog.Builder(this);
builder.setView(dialogLayout);
builder.create().show();