Develop Reference

How to make a filled circular progress bar? (without using external libraries)

I want to make a circular filled progress bar in Android Studio.
My goal is to achieve something like this;
The first image would have the progress value of for example, 100, then every second a bit of the circle will disappear until its nothing left.
I tried this but I couldn't get my repositories to work, therefore I'm looking for a more "non external" way to do it.

With the Material Components library you can use the official CircularProgressIndicator.
Something like:
<com.google.android.material.progressindicator.CircularProgressIndicator
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:trackThickness="20dp"
/>
If you are using jetpack Compose you can use CircularProgressIndicator:
CircularProgressIndicator(
strokeWidth = 20.dp,
progress = animatedProgress.value)

Android Progress Circle With Multiple Colors

I'm trying to draw a indeterminate (circular) progress bar that is white and then fades into purple.
This is my ProgressBar:
<ProgressBar
android:id="#+id/mainProgressBar"
style="#style/Widget.AppCompat.ProgressBar"
android:layout_width="#dimen/progressbar_size"
android:layout_height="#dimen/progressbar_size"
android:layout_gravity="center" />
Then I paint it white:
mainProgressBar.getIndeterminateDrawable().setColorFilter(getResources().getColor(R.color.white), PorterDuff.Mode.SRC_ATOP);
Do I need add another ColorFilter? Set a style or theme on the progressbar? No idea what to do here.

DonutProgressView is a configurable doughnut-like graph view capable of displaying multiple datasets with assignable colors. It supports animations and features a gap at the top, which makes it look like a gauge (or tasty bitten-off donut - that's why the name).
Click Here to See Git Lib

Change Android EditText background color

I am developing an Android app. There's this issue with the EditTexts, because in some devices the "background" is white (which is the way I want it), but on others is transparent, and makes the app less professional. Here's an image with the "white background":
On other devices the edit texts that say "Yo" and "Casa" are transparent, so the words mix with the map and its pretty awful. I have tried changing the background color in the android layout xml. The closest one was I believe #drawable/white, but slightly changes the position and size of the edit text, making them look like they're one and its even worst.
Here is an example:
Is there a nice way to approach this problem? I read somewhere that an option was to add a white background image to the edit texts, but seemed like a lot of trouble.
UPDATE
I tried adding a background image, but its the same as changing the background color to any color using the android:background, the edit texts get like smaller or something. I added a blue "delimiter" to the image and this is the result:
But I want them like in the first picture, not so close one to another.
This would be the code of the edittext layout XML, the other one looks very similar. Only by adding the android:background tag changes from picture 1, to picture 3
SOLUTION
To solve this what I did was set a background image and set its height in dp as follows:
<EditText
android:id="#+id/markerTitle"
android:layout_width="wrap_content"
android:layout_height="40dp"
android:layout_alignParentLeft="true"
android:layout_below="#+id/buttonModifymarker"
android:ems="10"
android:inputType="textPersonName"
android:text="Título"
android:background="#drawable/editwhite"
>

Why don't you try setting the background of EditText programmatically?
yourEditText.setBackgroundColor(Color.WHITE);
or...
yourEditText.setBackgroundColor(Color.parseColor("#ffffff"));

simply you can add android:background="#drawable/white" attribute to your element in layout xml. you can use a lot of color resource between the double quotes (like from android color resources).

put the following image which has a solid white background in the drawable folder (it may dont appear because it's white and this page's background is white also) right click under this paragraph and select "Save Image as".
and refer to it in your layout and you will get a result like the following image
if the issue continue after trying this, please show me your layout code or email me at : mohamed_hamed4158#yahoo.com , thanks for voting my answer :)

Android RatingBar - quarter star step size

I'm working with a default rating bar and require a stepSize of .25 - according to the docs, this should be a simple matter of setting the xml attribute android:stepSize to 0.25.
Currently, that is in place, with the total xml as:
<RatingBar
android:id="#+id/ratingbar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="#style/RatingBarBig"
android:layout_below="#+id/score"
android:layout_centerHorizontal="true"
android:gravity="center_horizontal"
android:paddingBottom="5dp"
android:layout_centerVertical="true"
android:isIndicator="true"
android:stepSize="0.25"
android:numStars="5"
android:rating="0"/>
I'm filling the ratingbar programmatically with a float of 3.25 using the following code:
float rating = 3.25f;
RatingBar mRating = (RatingBar) findViewById(R.id.ratingbar);
mRating.setRating(rating);
so, the problem is that the rating bar itself is being filled to show 3.5 instead of 3.25. I've even set Log.d notices on both the rating float and the output of mRating.getRating
Anybody have any ideas?

Ah - so after 2 days of trying to figure this out, I finally ask SO, and what happens? I figured it out ten minutes later...
The issue was in my drawable.
What I forgot to mention, is that I'm using a second RatingBar, overlayed on top of the first one (with just empty transparent stars), as I'm using a colour filter on the primary one in order to change the colour of the stars based on the rating (red, yellow, green).
What was happening is that the drawables I was using for the primary RatingBar needed to use the exact same ones as the overlay - and not the ones I was using that were left over from my previous theme...
So, it all comes down to the images used, not the code. I'll accept this as the right answer once I'm allowed to.

Try setting the step size programmatically:
mRating.setStepSize((float) 0.25);
call this before mRating.setRating(rating);
See if this works

How to use setprogressbar() on a progressbar with style Widget.ProgressBar.Large

I want to show progress in a widget via a wheel-progressbar (not the horizontal one).
This is the progressbar in the xml layoutfile, that shows the content to the user:
<ProgressBar
android:id="#+id/progressBar1"
style="#android:style/Widget.ProgressBar.Large"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:indeterminateOnly="false"/>
In the appwidget_provider implementation I wanted to set the progressbar like this:
RemoteViews views = new RemoteViews(context.getPackageName(),R.layout.sample_widget);
views.setProgressBar(R.id.progressBar1, 2, 1, false);
appWidgetManager.updateAppWidget(appWidgetId, views);
(sample_widget being the layout shown to the user)
Now, if progressBar1 is a horizontal progressBar, everything is displayed as you would expect.
But if I use any other style, like here, the progressbar is not displayed as soon as setProgressBar() sets indeterminate to false.
I presume that is because the wheel-progressbars are apparently designed to show only indeterminate behaviour, so the drawable for determinate behaviour does not exist, which
leads to the progressbar not being displayed.("If you will use the progress bar to show real progress, you must use the horizontal bar.", according to the documentation here)
My question is now how I would go about making a wheel-progressbar that is capable of
showing actual progress ? Furthermore I wanted to be able to customize the progressbar based
on user preferences or how much progress has currently been made ( maybe dynamically change the colour of the bar, make it brighter/darker, bolder/thinner, etc.).
I would really appreciate it if someone could point me in the right direction, because I assume I am pretty much overthinking it now.I believe there must be a simple way of doing it, I just did not find anything on the matter.