Android: Possible Bug in Android - android

I have two Views I am using to arrange some buttons on the screen. The screen size I am seeing the result on is Moto G in landscape mode - 640dp * 360dp. The problem is - the buttons are arranging them according to the View with id=center_parent instead of the the one with id=left_corner
<?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">
<View android:id="#+id/center_parent"
android:layout_centerInParent="true"
android:layout_width="0dp"
android:layout_height="0dp"/>
<View android:id="#+id/left_corner"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_toLeftOf="#+id/center_parent"
android:layout_marginRight="165dp"
android:layout_above="#+id/center_parent"
android:layout_marginBottom="150dp"
android:layout_alignParentTop="true"/>"
<Button android:id="#+id/btn1"
android:layout_height="20dp"
android:layout_width="20dp"
android:padding="0dp"
android:layout_toRightOf="#+id/left_corner"
android:layout_marginLeft="165dp"
android:layout_below="#+id/left_corner"
android:layout_marginTop="5dp"
android:text="1"
android:textColor="#android:color/black"
android:background="#drawable/star"/>
<Button android:id="#+id/btn2"
android:layout_height="20dp"
android:layout_width="20dp"
android:padding="0dp"
android:layout_toRightOf="#+id/left_corner"
android:layout_marginLeft="330dp"
android:layout_below="#+id/left_corner"
android:layout_marginTop="171dp"
android:text="2"
android:textColor="#android:color/black"
android:background="#drawable/star"/>
<Button android:id="#+id/btn3"
android:layout_height="20dp"
android:layout_width="20dp"
android:padding="0dp"
android:layout_toRightOf="#+id/left_corner"
android:layout_marginLeft="292dp"
android:layout_below="#+id/left_corner"
android:layout_marginTop="171dp"
android:text="3"
android:textColor="#android:color/black"
android:background="#drawable/star"/>
<Button android:id="#+id/btn4"
android:layout_height="20dp"
android:layout_width="20dp"
android:padding="0dp"
android:layout_toRightOf="#+id/left_corner"
android:layout_marginLeft="292dp"
android:layout_below="#+id/left_corner"
android:layout_marginTop="292dp"
android:text="4"
android:textColor="#android:color/black"
android:background="#drawable/star"/>
</RelativeLayout>!
Attached is the image of how it looks on the screen. Even though the arrows show that is measure using left_corner, but is not the case. If I replace left_corner with center_parent in the buttons while arranging the result is the same.
The marked arrow is left_corner
I have found an alternative. So alternative is not what I am looking for. I will love to learn the explanation of this.


The layout_marginLeft and layout_marginRight are too much.
Remove all the margins first, you will see the view properly. Then start addding the margins again accordingly.
There are few things you need to observer here.
layout_marginBottom pushing left_corner too far up from center_parent
layout_marginRight is pushing left_corner too far from center_parent
you have to make up your mind on where you want the controls to be places and aligned to what.
<?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">
<View android:id="#+id/center_parent"
android:layout_centerInParent="true"
android:layout_width="10dp"
android:layout_height="10dp"/>
<View android:id="#+id/left_corner"
android:layout_width="10dp"
android:layout_height="10dp"
android:layout_toLeftOf="#+id/center_parent"
android:layout_marginRight="10dp"
android:layout_above="#+id/center_parent"
android:layout_marginBottom="10dp"
android:layout_alignParentTop="true"/>"
<Button android:id="#+id/btn1"
android:layout_height="20dp"
android:layout_width="20dp"
android:padding="0dp"
android:layout_toRightOf="#+id/left_corner"
android:layout_marginLeft="10dp"
android:layout_below="#+id/left_corner"
android:layout_marginTop="0dp"
android:text="1"
android:textColor="#android:color/black"
android:background="#drawable/star"/>
<Button android:id="#+id/btn2"
android:layout_height="20dp"
android:layout_width="20dp"
android:padding="0dp"
android:layout_toRightOf="#+id/left_corner"
android:layout_marginLeft="10dp"
android:layout_below="#+id/left_corner"
android:layout_marginTop="20dp"
android:text="2"
android:textColor="#android:color/black"
android:background="#drawable/star"/>
<Button android:id="#+id/btn3"
android:layout_height="20dp"
android:layout_width="20dp"
android:padding="0dp"
android:layout_toRightOf="#+id/left_corner"
android:layout_marginLeft="10dp"
android:layout_below="#+id/left_corner"
android:layout_marginTop="40dp"
android:text="3"
android:textColor="#android:color/black"
android:background="#drawable/star"/>
<Button android:id="#+id/btn4"
android:layout_height="20dp"
android:layout_width="20dp"
android:padding="0dp"
android:layout_toRightOf="#+id/left_corner"
android:layout_marginLeft="10dp"
android:layout_below="#+id/left_corner"
android:layout_marginTop="60dp"
android:text="4"
android:textColor="#android:color/black"
android:background="#drawable/star"/>
</RelativeLayout>
using the above xml, i got the below output.

Related

How show cardview as a dilouge while bluring the background

I have a card view with 2 radio buttons I want to show it as a dialogue
I want to achieve multiple things
Showing card view as a dialogue
blurring the background layout while showing the dialog
I have 2 radio buttons (only one is selectable) I want that after selecting one of them the dialogue will disappear but not immediately at least there should be a short delay so the user can see the selection of the radio button
Note:- If you want more references of the code please tell me I will
update the question as you can find I dint include the fragment_home
java file so the question doesn't get long and confusing
Here is the layout
sort_image.xml
<com.google.android.material.card.MaterialCardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="300dp"
android:layout_height="200dp"
android:layout_gravity="center"
android:backgroundTint="#color/grey"
app:cardCornerRadius="20dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/sort_textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerInParent="true"
android:layout_marginTop="5dp"
android:fontFamily="#font/roboto"
android:text="Sort by"
android:textAlignment="center"
android:textColor="#color/lite_grey"
android:textSize="25sp" />
<com.google.android.material.card.MaterialCardView
android:id="#+id/divider_line_sort_by"
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_below="#id/sort_textView"
android:layout_marginStart="10dp"
android:layout_marginTop="5dp"
android:layout_marginEnd="10dp"
android:backgroundTint="#color/lite_grey"
app:cardCornerRadius="50dp" />
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true">
<TextView
android:id="#+id/latest_sort_textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="30dp"
android:layout_marginTop="30dp"
android:fontFamily="#font/roboto"
android:text="Latest"
android:textAlignment="center"
android:textColor="#color/lite_grey"
android:textSize="25sp" />
<TextView
android:id="#+id/most_popular_sort_textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/latest_sort_textView"
android:layout_alignParentStart="true"
android:layout_centerInParent="true"
android:layout_marginStart="30dp"
android:layout_marginTop="25sp"
android:fontFamily="#font/roboto"
android:text="Most Popular"
android:textAlignment="center"
android:textColor="#color/lite_grey"
android:textSize="25sp" />
<RadioGroup
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true">
<RadioButton
android:id="#+id/latest_sort_radio_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="25sp" />
<RadioButton
android:id="#+id/most_popular_sort_radio_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp" />
</RadioGroup>
</RelativeLayout>
</RelativeLayout>
</com.google.android.material.card.MaterialCardView>
fragment_home.xml // This layout contains the text which I want that when pressed I open the dialogue and also this is the fragment/layout which I want to blur when showing the dialogue
Note:- only included the necessary code of this layout
<com.google.android.material.card.MaterialCardView
android:id="#+id/sort"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_marginEnd="5dp"
android:layout_marginBottom="5dp"
android:layout_toStartOf="#id/divider_line"
android:backgroundTint="#color/black"
android:elevation="6dp"
android:paddingBottom="10dp"
android:textAlignment="center"
app:cardCornerRadius="10dp">
<TextView
android:id="#+id/sort_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="5dp"
android:fontFamily="#font/roboto"
android:text="#string/sort"
android:textAlignment="center"
android:textColor="#color/white"
android:textSize="17sp"
android:textStyle="bold" />
</com.google.android.material.card.MaterialCardView>

I think you need to use dialog fragment. You can read more about that in official documentation https://developer.android.com/guide/fragments/dialogs

Wrong placement of button inside linear layout

I have three textviews with drawableleft on them in horizontal orientation of linear layout and trying to show first #+id/tv_video_call view then tv_language and showing correctly on the android studio preview and does not change its position inside the class.
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:orientation="horizontal">
<TextView
android:id="#+id/tv_video_call"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:layout_marginEnd="7dp"
android:drawableLeft="#drawable/ic_video"
android:drawablePadding="10dp"
android:gravity="center"
android:text="Video Call"
android:textColor="#color/white"
android:textScaleX="1.2"
android:textSize="16sp"
android:textStyle="bold" />
<View
android:id="#+id/vertical_line"
android:layout_width="2dp"
android:layout_height="22dp"
android:layout_marginStart="5dp"
android:layout_marginTop="5dp"
android:layout_marginEnd="3dp"
android:layout_marginBottom="5dp"
android:layout_toStartOf="#id/tv_language"
android:background="#color/white"
android:paddingTop="2dp"
android:textStyle="bold" />
<TextView
android:id="#+id/tv_language"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="7dp"
android:layout_marginTop="4dp"
android:layout_marginEnd="7dp"
android:layout_marginRight="15dp"
android:layout_toLeftOf="#id/tv_logout"
android:drawableLeft="#drawable/ic_language"
android:drawablePadding="10dp"
android:gravity="center"
android:text="#string/logout"
android:textColor="#color/white"
android:textScaleX="1.2"
android:textSize="16sp"
android:textStyle="bold" />
<View
android:id="#+id/logoutline"
android:layout_width="2dp"
android:layout_height="22dp"
android:layout_marginStart="5dp"
android:layout_marginTop="5dp"
android:layout_marginEnd="3dp"
android:layout_marginBottom="5dp"
android:layout_toStartOf="#id/tv_language"
android:background="#color/white"
android:paddingTop="2dp"
android:textStyle="bold" />
<TextView
android:id="#+id/tv_logout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_marginStart="7dp"
android:layout_marginTop="4dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="6dp"
android:drawableLeft="#drawable/logouticon"
android:gravity="center"
android:text="#string/logout"
android:textColor="#color/white"
android:textScaleX="1.2"
android:textSize="16sp"
android:textStyle="bold"
android:visibility="visible" />
</LinearLayout>
but the emulator is showing the first textview after the second one having no idea what causes it to shift to that place.

Try to set buttons width with 0dp and set weight to 1 for them to divide equally in the layout.
Right now you have set width to wrap content which means that if those 2 buttons can't fit at the same time, one of them will be shift out.

Android: How to get 3 elements side by side

I'm trying to have 3 elements side by side like this:
The second image is never displayed. Where is my mistake ?
<ImageView
android:id="#+id/asset_cat_image"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_marginStart="10dp"
android:layout_marginLeft="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:layout_marginRight="16dp"
android:layout_marginBottom="16dp"
android:src="#mipmap/ic_launcher" />
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_toRightOf="#+id/asset_cat_image"
android:layout_centerVertical="true"
android:layout_toEndOf="#+id/asset_cat_image">
<TextView
android:id="#+id/asset_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="16sp"
android:textStyle="bold"
android:maxLines="1"
android:textColor="#color/cardview_head"
android:ellipsize="end"
tools:text="Main Text"
android:layout_marginRight="10dp"
android:layout_marginEnd="10dp" />
<TextView
android:id="#+id/asset_category"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textStyle="italic"
android:textSize="14sp"
android:textColor="#color/cardview_subhead"
tools:text="Sub Text"
android:maxLines="1"
android:ellipsize="end"
android:layout_marginRight="10dp"
android:layout_marginEnd="10dp" />
</LinearLayout>
<ImageView
android:id="#+id/collapseimg"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_marginStart="10dp"
android:layout_marginLeft="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:layout_marginRight="16dp"
android:layout_marginBottom="16dp"
android:src="#mipmap/ic_launcher" />
</RelativeLayout>

While LinearLayouts width is match_parent it displaces every view after it by default. To avoid it you need to say what view should be placed after it. In your case it should be:
<LinearLayout
...
android:layout_toRightOf="#+id/asset_cat_image"
android:layout_toLeftOf="#+id/collapseimg">
Then align your second image to the right side:
<ImageView
...
android:layout_alignParentRight="true"/>

Hello friends how achieve bottom media controller layout?

Hello friends i am beginner in android i want know how to achieve this type layout the image which shown below please help me i trying achieve this type of layout

It is very simple layout FYI
It can be done with any type of parent layout Constraint, Relative and
even with Linear
I will share a Relative one example. Use your own drawables and assests.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/relativeLayoutMain"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/black"
android:padding="4dp">
<TextView
android:id="#+id/textViewSongTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_marginStart="24dp"
android:layout_marginEnd="10dp"
android:layout_toStartOf="#+id/buttonBackward"
android:ellipsize="end"
android:maxLines="1"
android:padding="2dp"
android:text="Song Name - [details]"
android:textColor="#android:color/white"
android:textSize="12sp"
android:textStyle="bold" />
<TextView
android:id="#+id/textViewArtistName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/textViewSongTitle"
android:layout_alignParentStart="true"
android:layout_marginStart="24dp"
android:layout_marginEnd="10dp"
android:layout_toStartOf="#+id/buttonBackward"
android:padding="2dp"
android:text="Singer Name"
android:textColor="#android:color/white"
android:textSize="12sp" />
<Button
android:id="#+id/buttonForward"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_alignParentEnd="true"
android:layout_centerVertical="true"
android:layout_marginEnd="8dp"
android:background="#android:color/holo_green_dark"
android:gravity="center"
android:text="F"
android:textColor="#android:color/white" />
<Button
android:id="#+id/buttonPlayAndStop"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_centerVertical="true"
android:layout_marginEnd="8dp"
android:layout_toStartOf="#id/buttonForward"
android:background="#android:color/holo_green_dark"
android:gravity="center"
android:text="PS"
android:textColor="#android:color/white" />
<Button
android:id="#+id/buttonBackward"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_centerVertical="true"
android:layout_marginEnd="8dp"
android:layout_toStartOf="#id/buttonPlayAndStop"
android:background="#android:color/holo_green_dark"
android:gravity="center"
android:text="B"
android:textColor="#android:color/white" />
</RelativeLayout>

Android Studio Background color not displaying

I have worked on a small app where I designed multiple pages. however the first page is not displaying the correct background color when I run the app , although I'm 100% sure the color is amended. below you see the codes of xml.
also even the action bar is still there although I removed and used no action bar them.
what seems to be the issue ?
note: Android studio updated
<?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="wrap_content"
android:layout_height="wrap_content"
tools:background="#243447"
tools:context="#243447">
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="97dp"
android:fontFamily="sans-serif-smallcaps"
android:text="Choose your focus"
android:textColor="#android:color/holo_red_light"
android:textSize="24sp" />
<RelativeLayout
android:id="#+id/linearLayout"
android:layout_width="match_parent"
android:layout_height="413dp"
android:layout_alignParentStart="true"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginStart="0dp"
android:layout_marginBottom="0dp"
tools:background="#243447">
<Button
android:id="#+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignStart="#+id/button2"
android:layout_alignTop="#+id/button5"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_alignParentBottom="true"
android:layout_marginEnd="32dp"
android:layout_marginRight="32dp"
android:layout_marginBottom="195dp"
android:background="#243447"
android:fontFamily="sans-serif-smallcaps"
android:hapticFeedbackEnabled="false"
android:shadowColor="#android:color/background_dark"
android:text="Work"
android:textAllCaps="false"
android:textColor="#android:color/holo_red_light"
android:textColorHighlight="#android:color/darker_gray"
android:textSize="14sp" />
<Button
android:id="#+id/button5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/button4"
android:layout_alignParentStart="true"
android:layout_alignParentLeft="true"
android:layout_alignParentBottom="true"
android:layout_marginStart="32dp"
android:layout_marginLeft="32dp"
android:layout_marginTop="61dp"
android:layout_marginBottom="195dp"
android:background="#243447"
android:fontFamily="sans-serif-smallcaps"
android:hapticFeedbackEnabled="false"
android:shadowColor="#android:color/background_dark"
android:text="Community"
android:textAllCaps="false"
android:textColor="#android:color/holo_red_light"
android:textColorHighlight="#android:color/darker_gray"
android:textSize="14sp" />
<Button
android:id="#+id/button4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/button2"
android:layout_alignParentStart="true"
android:layout_alignParentLeft="true"
android:layout_marginStart="32dp"
android:layout_marginLeft="32dp"
android:layout_marginTop="0dp"
android:background="#243447"
android:fontFamily="sans-serif-smallcaps"
android:hapticFeedbackEnabled="false"
android:shadowColor="#android:color/background_dark"
android:text="Relgion"
android:textAllCaps="false"
android:textColor="#android:color/holo_red_light"
android:textColorHighlight="#android:color/darker_gray"
android:textSize="14sp" />
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_marginTop="61dp"
android:layout_marginEnd="32dp"
android:layout_marginRight="32dp"
android:background="#243447"
android:fontFamily="sans-serif-smallcaps"
android:hapticFeedbackEnabled="false"
android:shadowColor="#android:color/background_light"
android:text="Health"
android:textAllCaps="false"
android:textColor="#android:color/holo_red_light"
android:textColorHighlight="#android:color/darker_gray"
android:textSize="14sp" />
</RelativeLayout>
</RelativeLayout>

You are using tools:background="#243447" the keyword tools is only for the screen preview in android studio.
If you would like to have the background color in your app you need to use the keyword android
android:background="#243447"

Try to use
android:background="#243447"
instead of
tools:background="#243447"
and you have to put your class name in
tools:context=".ActivityName"

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