Develop Reference

Cannot make widgets scrollable

I want to create a list of image buttons and i added 3 of them but only two are visible and i want to make them scrollable. I tried using ScrollView but it still doesnt work. I also tried replacing RelativeLayout in the first line with ScrollView but the app started to crash.
Here's the xml file:
<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"
android:background="#drawable/back"
tools:context=".home">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/download"
android:layout_gravity="center_horizontal"
/>
</RelativeLayout>
</ScrollView>
<ScrollView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="230dp">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:src="#drawable/geo" />
</RelativeLayout>
</ScrollView>
<ScrollView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="4300dp">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:src="#drawable/images"
android:contentDescription="TODO" />
</RelativeLayout>
</ScrollView>

Make the width and height of first scroll view as wrap content .If it doesn't work then
Make only a single scroll view.Then make a Linear layout as its child and in linear layout having vertical orientation add your 3 image buttons.

Button needs to be on the bottom

Without Scrollview, Button is on the bottom on the screen, which is the desired result. But as soon as I add the Scrollview, the button is not at the bottom of the screen anymore.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/create_account_view">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:id="#+id/scrollview_wrapper"
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginTop="0dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginBottom="10dp"
android:lines="1"
android:gravity="center"
android:textSize="16sp"/>
</RelativeLayout>
</ScrollView>
</RelativeLayout>

Add another attribute to ScrollView:
android:fillViewport="true"
This way ScrollView height will respect child's android:layout_height="match_parent" attribute

try this
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/create_account_view"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/button1">
</ScrollView>
<Button
android:id="#+id/button1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginBottom="10dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="0dp"
android:gravity="center"
android:lines="1"
android:textSize="16sp" />
</RelativeLayout>

The problem is in the scroll view, just add the following attribute to your scroll view.
android:fillViewport="true"

just add the scrolling view behavior to the scroll view
app:layout_behavior = "#string/appbar_scrolling_view_behavior"
and add the code to button xml file
android:layout_alignParentBottom = "true"
android:layout_centerHorizontal = "true"

Scrollview does not scroll when keyboard appears

I have a few EditTexts in my RelativeLayout, and a button aligned at the bottom of it. When the keyboard pops up, I want my layout to resize (therefore, I'm using android:windowSoftInputMode="adjustResize") and also want it to be scrollable, because in smaller screens resizing it isn't enough.
The problem is I can't get it to scroll at all!
I do need the Button to stay at the bottom of the screen.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FFF">
<!-- some hidden RelativeLayouts, filling the whole screen -->
<RelativeLayout
android:id="#+id/form_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ScrollView
android:layout_width="match_parent" android:layout_height="match_parent"
android:fillViewport="true" android:layout_above="#+id/ok_btn">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent" android:background="#99000000" android:visibility="visible">
<View
android:id="#+id/shade"
android:layout_width="wrap_content"
android:layout_height="wrap_content" android:layout_alignTop="#+id/logradouro1"
android:background="#FFF" android:layout_marginTop="-30dp"/>
<!-- some visible EditTexts and TextViews here -->
</RelativeLayout>
</ScrollView>
<Button android:id="#+id/ok_btn"
android:layout_width="match_parent"
android:layout_height="50dp" android:background="#color/verdeBotao" android:text="Cadastrar"
android:textColor="#FFF" android:layout_alignParentBottom="true"/>
</RelativeLayout>
</RelativeLayout>
Below are 2 screenshots to illustrate what is happening. Please notice that I can't scroll when the keyboard is up.
Thanks!

i am posting something similar to your ui. take a RelativeLayout for the button at the bottom. set gravity to bottom and your button view should android:layout_alignParentBottom="true"
<ScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/m_table_menu" >
<LinearLayout
android:id="#+id/layuserdetails"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:orientation="horizontal"
android:padding="5dp" >
Yourviewss......i guess edittexts
</LinearLayout>
</ScrollView>
//scrollable Button layout
<RelativeLayout
android:id="#+id/m_table_menu"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="bottom"
android:padding="0dp" >
<LinearLayout
android:id="#+id/laysharepost"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:gravity="bottom"
android:orientation="vertical"
android:padding="5dp" >
//replace textview with buttonview..
<TextView
android:id="#+id/share_tvcommentdone"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="#drawable/button_selector"
android:padding="10dp"
android:text="POST"
android:textColor="#android:color/white" />
</LinearLayout>
</RelativeLayout>

Adapting component when virtual keyboard appears

I'm designing a simple login activity. I've used the following xml layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="vertical"
android:layout_gravity="center_vertical|center_horizontal"
android:gravity="center_vertical|center_horizontal"
android:layout_margin="15dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="My application title"
android:textSize="30sp"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="2"
android:orientation="vertical"
android:layout_gravity="center_vertical|center_horizontal"
android:gravity="center_vertical"
android:layout_margin="15dp">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Username"/>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Password"
android:layout_marginTop="15dp"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="15dp"
android:text="Login"/>
</LinearLayout>
</LinearLayout>
And I've obtained this result:
But If the focus is on the first EditText I obtain this:
and If the focus is on the second EdiText the result is the follwoing:
Considering I've used the following line in the Manifest, for my activity:
android:windowSoftInputMode="adjustPan|adjustResize"
I want that when the virtual keyboard appears, the two edittext, the button and the textview are visible and correctly centered in the available screen.
What I have to change in my code?
NOTE: I've the same result If I remove the line in the manifest:
android:windowSoftInputMode="adjustPan|adjustResize"

You can replace the parent LinearLayout to a ScrollView :
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<LinearLayout ...>
....
....
</LinearLayout>
</ScrollView>
try this, it works for some of my apk !
Edit : sorry didn't see about center the text automaticaly, so with this you can adjust manually your editext to center with swipe your finger.. hope that will help

How to scroll my entire layout when the keyboard appears?

This is my layout:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/scroll_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="#dimen/defaut_padding" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="#dimen/defaut_padding"
android:orientation="vertical" >
<FrameLayout
android:id="#+id/photo"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ImageView
android:id="#+id/picture"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scaleType="fitXY" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:layout_margin="10dp"
android:background="#drawable/watermark" />
<ProgressBar
android:id="#+id/bitmap_loading"
style="?android:attr/progressBarStyleLarge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:visibility="visible" />
</FrameLayout>
<FrameLayout
android:id="#+id/user"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/photo"
android:layout_marginLeft="15dp"
android:layout_marginTop="-30dp"
android:background="#android:color/white"
android:padding="#dimen/smallest_padding" >
<ImageView
android:id="#+id/user_picture"
android:layout_width="50dp"
android:layout_height="50dp"
android:src="#drawable/anonymous_user" />
</FrameLayout>
<TextView
android:id="#+id/user_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="#id/user"
android:layout_marginLeft="#dimen/defaut_padding"
android:layout_toRightOf="#id/user"
android:text="#string/anonymous_user"
android:textStyle="bold" />
</RelativeLayout>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<EditText
android:id="#+id/input_description"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="top"
android:padding="5dp"
android:layout_marginBottom="#dimen/defaut_padding"
android:background="#drawable/textfield"
android:hint="#string/description_hint"
android:focusableInTouchMode="true"
android:maxLines="3"
android:scrollbars="vertical" />
<Button
android:id="#+id/publish"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/confirm_button_selector"
android:text="#string/confirm_button"
android:textColor="#android:color/white"
android:textSize="#dimen/big_text_size"
android:textStyle="bold" />
</FrameLayout>
</LinearLayout>
</ScrollView>
I want to scroll it when the soft keyboard appears when I start to digit at the EditText. How can I do this? Currenty the scroll works, but the keyboard appears above the button, and I want the button above the keyboard
I've tried to move the scrool when the user clicks in the EditText, doing something like this:
mSv.scrollTo(0, mSv.getBottom());
where mSv is my ScrollView
But it only works when the user clicks in the EditText at the second time.
Thank you for any help.

Try to change your Keyboard to pan instead of resize. You could do that in your AndroidManifest.xml file, for your particular Activity, add the below to it
android:windowSoftInputMode="adjustPan"
or
If you want to hide then:
EditText editTextSearch = (EditText) findViewById(R.id.editTextSearch);
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(editTextSearch.getWindowToken(), 0);
If want to show:
EditText editTextSearch = (EditText) findViewById(R.id.editTextSearch);
editTextSearch.requestFocus();
getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);

Check this SO answer. It should solve the problem "..that the button will appears over the entire layout, and what I want to do is make the entire layout (button and other views scroll)"

If you use a RelativeLayout (outside of ScrollView) being aligned to the bottom, it will stick to the bottom of the available screen—above the keyboard. ScrollView then needs a bottom margin to not overlay the button.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ScrollView
android:layout_height="match_parent"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_marginBottom="48dp" >
/* Here your elements ... like EditText */
</ScrollView>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_marginBottom="0px"
android:layout_alignParentBottom="true" >
<Button
android:layout_width="fill_parent"
android:layout_height="48dp"
android:text="ddd" />
</RelativeLayout>
</RelativeLayout>
This works only if you (as far as I could evaluate)
have a RelativeLayout as parent
have a ScrollView as the only child besides the RelativeLayout containing the button OR have another View (e.g. LinearLayout) containing a ScrollView somewhere (for whatever reason)
If you don't want the button to always stick to the bottom, you need to detect if the keyboard is shown or not as explained in Pragnani's link.