I'm basically creating a todolist app in android studio with kotlin that has this structure on repeat throughout the entire page. The button is for adding more items to your to do list. So to make things cleaner I'd like to make a simple class object everytime that button is pressed and add it to the layout. I'm fairly new to Kotlin and android and have no idea the best way to do this and don't want to just hardcode a new layout everytime a button is pressed. Any help would be greatly appreciated!
<LinearLayout>
<androidx.appcompat.widget.AppCompatButton
android:id="#+id/weekly_button_1"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_alignParentTop="true"
android:layout_marginStart="32dp"
android:layout_marginTop="16dp"
android:background="#drawable/plus_sign" />
<TextView
android:id="#+id/monthly"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="32dp"
android:text="#string/monthly"
android:textSize="40dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<CheckBox
android:id="#+id/checkbox_1"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_alignParentTop="true"
android:layout_marginTop="16dp"
android:layout_toRightOf="#id/daily_item_1"
android:textSize="16sp" />
</LinearLayout>
you can checkout the below codelabs example.
https://developer.android.com/codelabs/kotlin-android-training-diffutil-databinding#4
I want to change the font of my chronometer in android.I have set my default font to be a custom font . The font seems to be applied every where except the chronometer. I have also tried setting android:fontFamily="#font/myfont" but it didn't work. Though the font appears to be applied in the preview window, but it doesn't change when i run my app on my device.
Any idea to get over it ?
Here's my code:
<Chronometer
android:fontFamily="#font/linotte_semibold"
android:id="#+id/audio_player_chronometer"
android:layout_width="wrap_content"
android:layout_height="20dp"
android:layout_below="#+id/frame_layout"
android:textColor="#color/white"
android:layout_margin="5dp"
/>
You can download Fonts from Google Material
Go to layout editor
Select your view and view All Attributes on your right side and find fontFamily
Now click down arrow, it will open a window for selecting font
Find your desired font, you can also search and click ok
Your Chronometer will look differently
Here is the code
<Chronometer
android:id="#+id/chronometer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:fontFamily="#font/allan_bold"
android:textColor="#color/colorAccent"
android:textSize="30sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
If in case font does not change use this in your Activity.class
Chronometer chronometer = findViewById(R.id.chronometer);
chronometer.setTypeface(ResourcesCompat.getFont(this, R.font.allan_bold));
//replace allan_bold with your desired font
Edit 1
Here is the Output in the device
Hope this will help!
I just follow this to add font to Android
https://developer.android.com/guide/topics/ui/look-and-feel/fonts-in-xml.html
Copy .ttf / .otf file to "res/font" folder
Generate font resource file with style and weight details.
Set new font as android:fontFamily="#font/sample_font"
Check sample code below, with comparison with and without adding font
<!--With Font-->
<Chronometer
android:id="#+id/chronometer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/framelayout"
android:layout_margin="5dp"
android:fontFamily="#font/sample_font"
android:textColor="#android:color/holo_blue_dark"
android:textSize="30sp"
app:layout_constraintBottom_toTopOf="#+id/textView"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.502"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/audio_player_chronometer"
app:layout_constraintVertical_bias="0.528" />
<!--Without Font-->
<Chronometer
android:id="#+id/audio_player_chronometer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/framelayout"
android:layout_margin="5dp"
android:textSize="30sp"
android:textColor="#android:color/holo_blue_dark"
app:layout_constraintBottom_toTopOf="#+id/textView"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/framelayout" />
<!--sample text-->
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
android:fontFamily="#font/sample_font"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
Screenshot
I am developing news app and I want to implement constrainlayout inside CardView and achieve ui the same as image below
but I could achieve what I want below my xml file
where I have implemented constrainlayout inside cardview
<TextView
android:id="#+id/articleTitle"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="#+id/articleTitle"
tools:ignore="NotSibling" />
<TextView
android:id="#+id/articleAuthor"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
android:text="hhhhh"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="#+id/imageView" />
<TextView
android:id="#+id/articleImageView"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="#+id/articleTitle" />
<TextView
android:id="#+id/articleDescription"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
android:text="hhhhh"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="#+id/imageView" />
<ImageView
android:id="#+id/articleImageUrl"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintDimensionRatio="H,16:9"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintBottom_toBottomOf="#id/articleTitle"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="ContentDescription" />
below my xml ui output from layouteditor
What you need to achieve is not difficult at all (although, it's hard to tell because I don't know your project).
Based upon the image you provided, here's a rough approximation using basic Constraint Layout features (no Chains, or anything too fancy); again, I don't know the exact specs and requirements, but this should serve as a starting point.
Here's how the final product looks in the Android Studio Editor, I didn't run this, so there are some artifacts not 100% correctly rendered (like the borders of the CardView), because Android Studio does an "approximation" of how it looks:
Root Layout
You mentioned you wanted a CardView, so the root is naturally a MaterialDesign Card View:
<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:id="#+id/card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="16dp"
android:background="#android:color/darker_gray"
android:elevation="4dp">
Constraint Layout
Inside the card view, there's one single viewGroup: a Constraint Layout
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/innerRoot"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/white">
This ConstraintLayout is going to contain all the Card's contents in a flat hierarchy. It matches its parent (the card) in width, but it wraps its height, just like the Card itself.
Top News Header, Icon, and subtext:
THere are various ways to achieve this, and depending upon your requirements, you may want to play with vertical chains, constraining the width, etc., to avoid text from overlapping each other, and/or to enable/disable multi-line support, or ellipsis, etc. None of this information can be inferred from your static image.
<ImageView
android:id="#+id/topFlameImageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="Header title"
android:padding="8dp"
android:src="#drawable/ic_flash_on_black_24dp"
android:tint="#android:color/holo_red_light"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<com.google.android.material.textview.MaterialTextView
android:id="#+id/topTitleTextView"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="Top News"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#id/topFlameImageView"
app:layout_constraintTop_toTopOf="parent" />
<com.google.android.material.textview.MaterialTextView
android:id="#+id/bottomTitleTextView"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="Editor on duty: Dan"
android:textColor="#android:color/darker_gray"
app:layout_constraintBottom_toBottomOf="#id/topFlameImageView"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#id/topFlameImageView"
app:layout_constraintTop_toBottomOf="#id/topTitleTextView" />
Notice it's just an ImageView, and two TextViews, one below the other, all constrained together.
Big Image
I didn't put an image, but did add a blue background representing the image. I gave it an arbitrary height of 250dp, but this is not mandatory, you may change this; it gives you an idea.
This image is constrained to be below the above header with "Top News", etc, and it spans the whole width of the card.
<ImageView
android:id="#+id/bigImage"
android:layout_width="0dp"
android:layout_height="250dp"
android:background="#android:color/holo_blue_dark"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/topFlameImageView" />
Title + Icon
Below the big image, there's what appears to be a Title (and its icon). Nothing special, just like the "header" above, an image and a text.
Here is where there's something that I didn't do: In your image, the text in this, aligns to the left/start, even below the icon; in this example, the TextView is constrained to the end/right of the icon, and so if it's multi-line, it will not "properly" justify its text to fit below the icon. In other words, in the image above, the word "Update" should be below the red "lightning bolt" icon, but it's not. (I think it looks better this way anyway... but I haven't thought how to make it look like what you exactly want). Using drawableStart in the TextView, doesn't give the same effect, so that's why I used a separate imageVIew for these "icons", to better control the image's placement.
<ImageView
android:id="#+id/titleImageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:contentDescription="Title"
android:padding="8dp"
android:src="#drawable/ic_flash_on_black_24dp"
android:tint="#android:color/holo_red_light"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/bigImage" />
<com.google.android.material.textview.MaterialTextView
android:id="#+id/titleTextView"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="Real Madrid provide Toni Kroos injury update"
android:textSize="18sp"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#id/titleImageView"
app:layout_constraintTop_toTopOf="#id/titleImageView" />
User Avatar, Name, and Timestamp (?)
This is similar to the Title, and the Header at the beginning, except you want the timestamp (17 m) to be at the end/right of what appears to be the user name Onefootball.
<ImageView
android:id="#+id/userAvatarImageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:contentDescription="Title"
android:padding="8dp"
android:src="#drawable/ic_account_circle_black_24dp"
android:tint="#android:color/holo_green_light"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/titleTextView" />
<com.google.android.material.textview.MaterialTextView
android:id="#+id/userNameTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Onefootball"
android:textColor="#android:color/black"
android:textSize="14sp"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="#id/userAvatarImageView"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toEndOf="#id/titleImageView"
app:layout_constraintTop_toTopOf="#id/userAvatarImageView" />
<com.google.android.material.textview.MaterialTextView
android:id="#+id/timestampTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingStart="8dp"
android:paddingEnd="8dp"
android:text="- 17m"
android:textColor="#android:color/darker_gray"
android:textSize="14sp"
app:layout_constraintBaseline_toBaselineOf="#id/userNameTextView"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toEndOf="#id/userNameTextView" />
One image, one Text, another text; nothing fancy.
Closing the tags
Last but not least, you have to close the ConstraintLayout and the CardView...
</androidx.constraintlayout.widget.ConstraintLayout>
</com.google.android.material.card.MaterialCardView>
And that's all.
Final Comment | Conclusion
At the beginning of this combo, I told you StackOverflow is not a Free Coding Site; this is still true, and I've made this effort because it seems like you are learning Android and I love helping people, but keep in mind that in general, it's much much better if you try firsts and come up with 20 different small questions as you go through it.
I would have personally tried to solve this in small bits (like I presented it above) and when something didn't behave as expected, it would have been easier to ask here "Hey look at this small thing, why doesn't it do X Y Z????" than to try to post the whole thing, and hope someone comes around and fixes it for you so you can copy paste the solution and forget about it.
I really hope you learn from this and don't just copy/paste it.
Good luck with your project.
I have a buttons and I want to make them look like a spinner.
I've found this post from 2011:
Android: Drawing a button as a spinner
And none of the solutions worked for me.
It's better if I could use my customed background.
Those are the buttons:
<Button
android:id="#+id/new_msn_act_type"
android:layout_width="120dp"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:background="#drawable/button_border"
android:onClick="showPopup"
android:padding="6dp"
android:text="Order Type"
android:textColor="#color/colorPrimary" />
<Button
android:id="#+id/new_msn_datetimepick"
android:layout_width="120dp"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="5dp"
android:background="#drawable/button_border"
android:onClick="pickDateTime"
android:padding="6dp"
android:text="Date and Time"
android:textColor="#color/colorPrimary" />
I tried each one of the solutions suggested in the post, including
style="?android:attr/spinnerStyle"
And they didn't work. How can I solve it ? Thanks
I need it to be a Button, because I want to use drawable style as background, and I want it to open PopupMenu and I worked hard for the popup to present icons correctly...
I solved it with:
android:drawableRight="#drawable/arrow_down_float"
You can also choose custom drawables
I have this layout that I want to use as a header for navigation bar:
<?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="match_parent"
android:layout_height="164dp">
<ImageView
android:id="#+id/app_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="24dp"
android:layout_marginStart="24dp"
android:layout_marginTop="16dp"
android:adjustViewBounds="false"
android:scaleType="center"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#mipmap/ic_launcher" />
<TextView
android:id="#+id/first_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="16dp"
android:layout_marginStart="24dp"
android:layout_marginTop="16dp"
android:text="Name"
android:textAppearance="#style/TextAppearance.AppCompat.Headline"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toBottomOf="#+id/app_icon" />
<ImageView
android:id="#+id/credits_material_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="16dp"
android:layout_marginLeft="16dp"
android:layout_marginStart="16dp"
android:scaleType="center"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:srcCompat="#drawable/ic_dollar_coin_stack" />
<TextView
android:id="#+id/credits_label"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="16dp"
android:layout_marginLeft="16dp"
android:layout_marginStart="16dp"
android:text="Credits"
android:textStyle="italic"
android:textAppearance="#style/TextAppearance.AppCompat.Body2"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toRightOf="#+id/credits_material_icon" />
<TextView
android:id="#+id/credits_available"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="16dp"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:text="TextView"
android:textAppearance="#style/TextAppearance.AppCompat.Body2"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toRightOf="#+id/credits_label" />
</android.support.constraint.ConstraintLayout>
In the layout editor, the layout looks like:
But on a device, I am getting something like this:
The encircled portion is the layout under concern. Under that, you can see a ListView but that is a child of LinearLayout so that is a separate story.
So, my question is that why none of my ImageViews are displaying at all?
Things I have tried:
I have tried moving the ImageViews around with no improvement.
I checked with the layout hierarchy with the Layout inspector. Turns out, it shows a literal dot in place of both the ImageViews.
I have tried manually setting the height of this layout to a very large number to solve any accommodation related problems if there are any.
The answer is simple:
When in doubt, use android.support.v7.widget.AppCompatImageView
I thought that Android docs advising against its use in general was something to be taken seriously.
This will automatically be used when you use ImageView in your
layouts. You should only need to manually use this class when writing
custom views.
Another place I read that you are supposed to be extending from AppCompatActivity to enable this behavior. My Activities DO extend from AppCompatActivity but still I spent so much time thinking that maybe something is buggy with ConstraintLayout after all.
NO. My beloved ConstraintLayout hasn't lost its chivalry yet. :)
So, when in doubt, I reiterate,
Use android.support.v7.widget.AppCompatImageView
Some other answers saying the same thing:
Android vector drawable app:srcCompat not showing images
app:srcCompat does not work for ImageView