Develop Reference

LinearLayout not responsive in small devices

I have a layout file in my Android application:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/player_background"
android:gravity="center_horizontal"
android:orientation="vertical"
tools:context=".Fragments.PlayerFragment">
<ProgressBar
android:id="#+id/progress_bar_player"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="5dp"
android:theme="#style/ProgressBarStyle"
android:visibility="invisible" />
<TextView
android:id="#+id/title_label"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:gravity="center"
android:text="Title"
android:textColor="#color/white"
android:textSize="24dp" />
<ImageView
android:id="#+id/view_imageview"
android:layout_width="280dp"
android:layout_height="280dp"
android:layout_marginTop="10dp"
android:background="#color/white" />
<TextView
android:id="#+id/status_label"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:gravity="center"
android:text="Status"
android:textColor="#color/white"
android:textSize="20dp" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp">
<ImageButton
android:id="#+id/play_pause_btn"
android:layout_width="70dp"
android:layout_height="70dp"
android:layout_centerHorizontal="true"
android:background="#drawable/round_button"
android:gravity="center_vertical|center_horizontal"
android:padding="20dp"
android:scaleType="fitCenter"
android:src="#drawable/play_btn" />
<ImageButton
android:id="#+id/sleep_timer_btn"
android:layout_width="70dp"
android:layout_height="70dp"
android:layout_marginLeft="30dp"
android:layout_toRightOf="#+id/play_pause_btn"
android:background="#drawable/round_button"
android:gravity="center_vertical|center_horizontal"
android:padding="20dp"
android:scaleType="fitCenter"
android:src="#drawable/sleep_btn" />
<ImageButton
android:id="#+id/share_btn"
android:layout_width="70dp"
android:layout_height="70dp"
android:layout_marginRight="30dp"
android:layout_toLeftOf="#+id/play_pause_btn"
android:background="#drawable/round_button"
android:gravity="center_vertical|center_horizontal"
android:padding="20dp"
android:scaleType="fitCenter"
android:src="#drawable/share_btn" />
<TextView
android:id="#+id/sleep_timer_label"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/sleep_timer_btn"
android:layout_alignLeft="#+id/sleep_timer_btn"
android:layout_alignRight="#+id/sleep_timer_btn"
android:layout_marginTop="5dp"
android:gravity="center"
android:text="Status"
android:textColor="#color/white"
android:textSize="15dp" />
</RelativeLayout>
<SeekBar
android:id="#+id/volume_seek_bar"
android:layout_width="match_parent"
android:layout_height="40dp"
android:theme="#style/Volume_Seekbar"
android:paddingStart="30dp"
android:paddingEnd="30dp"/>
</LinearLayout>
It's working perfectly in most of the devices but in a small screen device I can't see the SeekBar because it's out from the screen. Any idea how I can fix it?

You are using very large fixed sizes on your views, and because different phones got different screen sizes what seems to work on some device will actually not work on another
For example - in a smaller device with height of 300dp with views summing up to total of 400dp you will not have enough room for some views because of the small screen size and that's why you are not seeing your view.
You can use ConstraintLayout to make your screen responsive, or if you want to keep your current layout structure you can use the following libraries for scaling size of dp:
ssp and sdp to get a scalable size unit for your views and texts.
Another option is to wrap your layout with ScrollView, giving your screen the option to be scrollable and by that you will be able to "see" all of your views on your screen - note that this may not be intuitive to your user.

It is because the fixed sizes you are using to build your layout is getting summed up eventually being too big for small screen size. You can try the following to fix this:
Create a layout specially for small screen size by using smallest width qualifier
Make your layout scrollable
Use constraint layout
Using the ssp and sdp size units
NOTE that you will have to specify the smallest width qualifier to your current layout in such a way that the smallest width qualifer excludes the small screen devices and include the devices in which your layout fits properly.

I would suggest you to use constraint layout, but if you still want to go ahead with your current view then it will be good practice if you add scrollview to your parent layout, so that your layout won't get cropped on smaller devices:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/player_background"
android:gravity="center_horizontal"
android:orientation="vertical"
tools:context=".Fragments.PlayerFragment">
<ProgressBar
android:id="#+id/progress_bar_player"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="5dp"
android:theme="#style/ProgressBarStyle"
android:visibility="invisible" />
<TextView
android:id="#+id/title_label"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:gravity="center"
android:text="Title"
android:textColor="#color/white"
android:textSize="24dp" />
<ImageView
android:id="#+id/view_imageview"
android:layout_width="280dp"
android:layout_height="280dp"
android:layout_marginTop="10dp"
android:background="#color/white" />
<TextView
android:id="#+id/status_label"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:gravity="center"
android:text="Status"
android:textColor="#color/white"
android:textSize="20dp" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp">
<ImageButton
android:id="#+id/play_pause_btn"
android:layout_width="70dp"
android:layout_height="70dp"
android:layout_centerHorizontal="true"
android:background="#drawable/round_button"
android:gravity="center_vertical|center_horizontal"
android:padding="20dp"
android:scaleType="fitCenter"
android:src="#drawable/play_btn" />
<ImageButton
android:id="#+id/sleep_timer_btn"
android:layout_width="70dp"
android:layout_height="70dp"
android:layout_marginLeft="30dp"
android:layout_toRightOf="#+id/play_pause_btn"
android:background="#drawable/round_button"
android:gravity="center_vertical|center_horizontal"
android:padding="20dp"
android:scaleType="fitCenter"
android:src="#drawable/sleep_btn" />
<ImageButton
android:id="#+id/share_btn"
android:layout_width="70dp"
android:layout_height="70dp"
android:layout_marginRight="30dp"
android:layout_toLeftOf="#+id/play_pause_btn"
android:background="#drawable/round_button"
android:gravity="center_vertical|center_horizontal"
android:padding="20dp"
android:scaleType="fitCenter"
android:src="#drawable/share_btn" />
<TextView
android:id="#+id/sleep_timer_label"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/sleep_timer_btn"
android:layout_alignLeft="#+id/sleep_timer_btn"
android:layout_alignRight="#+id/sleep_timer_btn"
android:layout_marginTop="5dp"
android:gravity="center"
android:text="Status"
android:textColor="#color/white"
android:textSize="15dp" />
</RelativeLayout>
<SeekBar
android:id="#+id/volume_seek_bar"
android:layout_width="match_parent"
android:layout_height="40dp"
android:paddingStart="30dp"
android:paddingEnd="30dp"
android:theme="#style/Volume_Seekbar" />
</LinearLayout>
</ScrollView>

How to make texts complete on a new line and make a layout with transparent color

I just create simple grid view like this
all I need as you see the texts with long name I want it to complete the text in a new line not going to the other relative layout as I need also the relative layout with id/rlTXTnme with a green color but with transparent green color for example thats the image view in the parent relative layout should be showed like this grid item Example
and this is my XML File
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<RelativeLayout
android:background="#ffffff"
android:layout_height="125dp"
android:layout_width="125dp"
tools:layout_conversion_absoluteX="5dp"
tools:layout_conversion_absoluteY="5dp"
tools:layout_conversion_absoluteWidth="170dp"
tools:layout_conversion_absoluteHeight="170dp"
tools:layout_editor_absoluteY="0dp"
tools:layout_editor_absoluteX="0dp">
<ImageView
android:id="#+id/imageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:srcCompat="#drawable/ssttll"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true" />
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="65dp"
android:layout_alignParentBottom="true"
android:background="#dcffbc"
android:id="#+id/rlTXTnme"
android:layout_toStartOf="#+id/relativeLayout">
</RelativeLayout>
<RelativeLayout
android:layout_width="35dp"
android:layout_height="75dp"
android:background="#f9762f"
android:id="#+id/relativeLayout"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:layout_below="#+id/button">
</RelativeLayout>
<TextView
android:id="#+id/textView8"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="25dp"
android:text="0"
android:textColor="#ffffff"
android:textStyle="bold"
android:layout_marginTop="15dp"
android:layout_below="#+id/button"
android:layout_alignStart="#+id/relativeLayout" />
<Button
android:id="#+id/button"
android:layout_width="50dp"
android:background="#ff2f2f"
android:layout_height="75dp"
android:layout_alignParentEnd="true"
android:layout_alignParentTop="true"
android:text="-"
android:layout_alignStart="#+id/relativeLayout"
android:layout_above="#+id/rlTXTnme" />
</RelativeLayout>
<TextView
android:id="#+id/menuTVGrid"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="TextView"
android:textColor="#000000"
android:textSize="10dp"
android:textStyle="bold"
tools:layout_editor_absoluteX="0dp"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintVertical_bias="0.601" />
</android.support.constraint.ConstraintLayout>
Sorry for my bad Englishand sorry if any thing is unclear

You can use a linearLayout and set weights to the layouts.
And for the transparency of the background, android accepts colors in AARRGGBB format where AA is the percent value of transparency needed. A good doc for percent-to-hex conversion can be found on this SO post.
Posting the edited layout in sometime
For transparency: if for 20% transparency:
android:background="#33dcffbc"

ImageView on top of Button

I'm trying to put a small ImageView on top of a button, but somehow it stays under it. I don't understand why as this sort of layout work perfectly with other views.
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/background_white_clickable"
android:text="#string/book_now"
android:id="#+id/but_book_now"
/>
<ImageView
android:layout_width="35dp"
android:layout_height="35dp"
android:id="#+id/img_bookmark"
android:src="#drawable/ic_action_bookmark_full"
android:layout_marginRight="15dp"
android:layout_marginEnd="15dp"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
</RelativeLayout>
I've tried with different background for the button, but the image can be seen only when it is transparent. I also tried to replace the ImageView with a colored View, still doesn't work.
Any idea? Thx
EDIT:
There is a confusion in answers I get, I mean to make the ImageView on top of the Button in its Z-order, not y-axis.
EDIT 2 :
I don't want to use an image button, the image is just a "pin" on the button that will appear/disappear.
I don't want to use a drawable on the button, I need to place it where I want exactly.
Using FrameLayout instead of RelativeLayout doesn't change anything.
Using imgView.bringToFront() doesn't work.
EDIT 3 :
The problem doesn't appear on device before Lollipop. On KitKat, the layout works as intended.

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="80dp" >
<Button
android:id="#+id/filter"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="7dp"
android:background="#0000FF"
android:gravity="center"
android:paddingBottom="25dp"
android:paddingTop="25dp"
android:text="Sort"
android:textColor="#FFFFFF" />
<ImageView
android:id="#+id/widget_title_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="top|right"
android:adjustViewBounds="true"
android:paddingTop="-10dp"
android:scaleType="fitStart"
android:src="#drawable/ic_launcher" />
</FrameLayout>
Try it,though I haven't tested it.

Try
findViewById(R.id.img_bookmark).bringToFront();

You need to set the button below the imageview so:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/background_white_clickable"
android:text="#string/book_now
android:id="#+id/but_book_now"
android:layout_below="#+id/img_bookmark"/>
<ImageView
android:layout_width="35dp"
android:layout_height="35dp"
android:id="#+id/img_bookmark"
android:src="#drawable/ic_action_bookmark_full"
android:layout_marginRight="15dp"
android:layout_marginEnd="15dp"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
</RelativeLayout>
EDIT
I noticed now that you wanted an image ON TOP of a button not ABOVE so don't care to my code above and use ImageButton:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageButton
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/background_white_clickable"
android:text="#string/book_now
android:id="#+id/but_book_now"
android:src="#drawable/ic_action_bookmark_full"/>
</RelativeLayout>

Sample code:
<RelativeLayout
android:id="#+id/relativeLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ImageView
android:id="#+id/img_bookmark"
android:layout_width="35dp"
android:layout_height="35dp"
android:layout_alignParentRight="true"
android:src="#drawable/ic_launcher" />
<Button
android:id="#+id/but_book_now"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_toLeftOf="#+id/img_bookmark"
android:text="Test" />
</RelativeLayout>
Note :
Edit the text and src, for your needs

If you want image view with button :
<Button
android:id="#+id/but_book_now"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:drawableTop="#drawable/ic_launcher"
android:background="#ff00ff"
android:text="This is button"
android:padding="10dp"
android:textColor="#ffff00"
/>
</RelativeLayout>
If you want image view without button :
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="vertical" >
<ImageView
android:id="#+id/but_book_now"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/ic_launcher"
android:text="This is button"
android:padding="10dp"
android:textColor="#ffff00"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#ff00ff"
android:text="This is button"
android:padding="10dp"
android:textColor="#ffff00"
/>
</LinearLayout>

You can define a RelativeLayout as a Button and add ClickEvents on it, add a child View with color or a child ImageView with a PNG, or whatever or both, to put images or color over it.
Example
<FrameLayout android:id="#+id/buttonTextFillColor"
android:layout_width="#dimen/mini_icon_width"
android:layout_height="#dimen/mini_icon_height"
android:background="#drawable/input_button_background"
android:clickable="true">
<View
android:id="#+id/colorTextFillColor"
android:layout_width="23dp"
android:layout_height="23dp"
android:background="#FFFFFF"
android:layout_gravity="center" />
<ImageView
android:layout_width="23dp"
android:layout_height="23dp"
android:src="#drawable/button_fill_text"
android:layout_gravity="center"/>
</FrameLayout>
You get a union of elements:
How will you see it?

please add the layout_below for Button attribute

I can't get an image on the left side of my Android XML Layout to appear properly. What am I doing wrong here?

Here is what is looks like and here is my XML code.
Can someone please post the fixed XML layout code for me and explain what I am doing wrong? I want the - symbol on the left to be all of the way left, just like the > symbol on the right side. The black text should be just to the right of the - symbol.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TableLayout
android:id="#+id/tableLayout1"
android:layout_width="fill_parent"
android:layout_height="44dip"
android:stretchColumns="0"
android:divider="#null"
>
<TableRow
android:id="#+id/tableRow1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/infocells"
android:divider="#null" >
<ImageView
android:id="#+id/imgDelete"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/minus" />
<TextView
android:id="#+id/txtKey"
android:text="Some text"
android:textSize="16dip"
android:textStyle="bold"
android:layout_marginLeft="8dip"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="left|center_vertical"
android:layout_weight="1.0"
android:layout_marginTop="11dp"
android:layout_marginBottom="6dp"
android:textColor="#color/black"
/>
<TextView
android:id="#+id/txtValue"
android:text="Some text"
android:textSize="16dip"
android:layout_marginRight="8dip"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="right|center_vertical"
android:layout_weight="1.0"
android:layout_marginTop="11dp"
android:layout_marginBottom="6dp"
android:textColor="#color/darkblue"
/>
<ImageView
android:id="#+id/imageView1"
android:layout_marginTop="7dp"
android:layout_marginRight="7dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/arrow" />
</TableRow>
</TableLayout>
</LinearLayout>

Why don't you make use of RelativeLayout and using various property of it you can align your TextView and ImageView according to your other views.If u want to set a - to the left then make use android:layout_alignParentLeft="true" and android:layout_alignParentLeft="true" for you > to set it to the right of the layout

In your ImageView you can set your X position using translationX like something below:
<ImageView
android:id="#+id/imgDelete"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:translationX="-25"
android:src="#drawable/minus" />
Just try it. This is a quick solution only.

Here's an idea on how you can do it. Give it a try.
<RelativeLayout>
<ImageView
android:id="#+id/imgDelete"
android:layout_alignParentLeft="true" />
<TextView
android:id="#+id/txtKey"
android:layout_toRightOf="#+id/imgDelete" />
<TextView
android:id="#+id/txtValue"
android:layout_toRightOf="#+id/txtKey" />
<ImageView
android:id="#+id/imageView1"
android:layout_alignParentRight="true" />
</RelativeLayout>

How to align the text on the right side of a picture?

I have an ImageView aligned to the parent right in a relativeLayout.
Here is my layout:
<RelativeLayout android:id="#+id/row" android:background="#null" style="#style/ListRow"
xmlns:android="http://schemas.android.com/apk/res/android">
<TextView android:textStyle="bold" android:textColor="#color/primary_text" android:text="Username" android:gravity="center_vertical" android:id="#+id/username" android:layout_width="wrap_content" android:layout_height="wrap_content" android:singleLine="true" android:layout_toLeftOf="#id/avatar" />
<LinearLayout android:gravity="center_vertical" android:id="#+id/time_item" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignTop="#id/username" android:layout_alignBottom="#id/username" android:layout_alignParentLeft="true">
<TextView android:textSize="#dimen/font_size_small" android:text="12:00AM" android:textColor="#color/secondary_text" android:gravity="center_vertical" android:id="#+id/date" android:layout_width="wrap_content" android:layout_height="wrap_content" />
</LinearLayout>
<RelativeLayout android:id="#+id/avatar" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="5.0dip" android:layout_alignParentRight="true">
<ImageView android:id="#+id/picture" android:src="#drawable/ic_launcher" android:layout_width="48.0dip" android:layout_height="48.0dip" android:scaleType="center" android:adjustViewBounds="true" />
<ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" />
</RelativeLayout>
<TextView android:textSize="#dimen/font_size_small" android:text="aslkndalskndlaksndlaskndlaksnlansldnaslkndalsdnaslkdnls" android:textColor="#color/primary_text" android:id="#+id/body" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_toLeftOf="#id/avatar" android:layout_below="#id/username" android:lineSpacingMultiplier="1.2" />
</RelativeLayout>
Here is what it looks like:
When starting a new line of text I want the text to align on to the right instead of the left. I have photoshopped what I want. Here is what I want:
Anyone know how I should modify my layout to where it does this? Thanks!

Just add one more property in your TextView body.
android:gravity="right"

You are missing the android:gravity="right" element from your TextView Body. It should go like
<TextView android:gravity="right"...
That simply makes the text originate on the right side of the TextView