Android java draw a line. Step 2: Working with the activity_main. Bring your storage to our online tool, or save locally with the desktop app. com/apk/res/android" android:layout Here are drawing lines in mapbox for new sdk level 10. I'm trying to figure out how to define a vertical line (1dp thick) to be used as a drawable. Please find code snippet below; import android. Note that since a line is always "framed", the Style is ignored in the paint. Start Jul 23, 2025 · So in this article, we will show you how you could draw a straight line between two given points on the screen in Android using Jetpack Compose. Udemy is an online learning and teaching marketplace with over 250,000 courses and 80 million students. I'm trying to make a dotted line. In Android, ImageView is used to display images of different types of formats. setARGB(255, 0, 0, 0); fgPaintSel. Bundle; import android. lets just say i get two coordinates (x,y) every n seconds and then want to update the widget accordingly. 2. I've created a custom view, and I have an onTouchEvent() that works. I want line to be drawn using coordinates from 2 points that get declared in main activity. Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project. content. Our software is used by online tutors, math tutors, schools and universities worldwide, including Cluey Learning. A common use of Canvas is to draw text to a given region of a custom View, Drawable, Bitmap, etc. Path; import android. According to those answers I have to override draw() function. Is it possible? I am trying to us ImageIO but it Exploring Android Canvas Drawing— For Shapes, Bitmaps andCustom views. drawPath (path, paint), either filled or stroked (based on the paint's Style), or it can be used for clipping or to draw text on a path. WigglyPaint - Draw Something That Wiggles Turn your drawings into wiggly, dancing animations Draw with animated brushes and create GIFs instantly! Share this free drawing tool with your friends! Android Graph Library for creating zoomable and scrollable line and bar graphs. Explore top LinkedIn content from members on a range of professional topics. dummies transforms the hard-to-understand into easy-to-use to enable learners at every level to fuel their pursuit of professional and personal advancement. The Path class encapsulates compound (multiple contour) geometric paths consisting of straight line segments, quadratic curves, and cubic curves. I tried this code : Paint fgPaintSel = new Paint(); fgPaintSel. Sep 1, 2010 · Can anybody tell how to draw a line in Android, perhaps with an example? If you want to have a simple Line in your Layout to separate two views you can use a generic View with the height and width you want the line to have and a set background color. encoder["</_>"] + del self. Search across a wide variety of disciplines and sources: articles, theses, books, abstracts and court opinions. Follow the below steps once the IDE is ready. I have the coordinates and I would like to draw a line or rectangular on a jpg image which is saved in my android device and then save the new file. Thanks in advance. java file. The card in this example is drawn to the screen with a default elevation, which causes the system to draw a shadow under it. The Canvas classdefines methods for drawing text, lines, bitmaps, and many other graphicsprimitives. 0. In this guide, we’ll dive deep into how to draw lines with rounded edges using Canvas and Paint, covering core concepts, step-by-step tutorials, common pitfalls, and advanced customization tips. LayoutParams( I'd Like to know how to draw a Line on ImageView as user swipe their finger ? Could any body explain this ? Or perhaps any Link to get start on this. xml file and at line 23 you have to add your API key in the place of YOUR_API_KEY. Canvas; import android. The most important step in drawing a custom view is to override theonDraw()method. Learn programming, marketing, data science and more. You can use these methods in onDraw()to create yourcustom user interface (UI). I have My Layout like below: <?xml version="1. By the end of this article, you will have learned how to draw rectangles, triangles, lines, arcs and curves, providing familiarity with some of the basic shapes. Note that select Java as the programming language. - jjoe64/GraphView Here are drawing lines in mapbox for new sdk level 10. There are no errors in my codes, but the connected sequence of line segments are not showing. encoder. It works on any web browser including iPhone, iPad, Chromebooks and Android with no downloads or plugins required. ImageView; publicclass Test extends Activity { ImageView This example demonstrate about How to use Line chart graph in android. So in this article, we will show you how you could draw a line programmatically and display it in an ImageView in Android. encoder["</_>"] + + self. e buttons or images or EditText are defined in xml files which will be wired to your java file (You can also define view in your java file). 0 i want to visualize stuff with a widget by drawing some lines. + self. line_token] = self. i just need to draw a line between those two locations (my current location periodically updated in the myLocation variable) and onmaplongclicklastlatlng changed whenever i long click on the map. getHeight()), mPaint); } if i understand that you are just looking to draw a line after every textview, your best bet is probably to just extend TextView with a custom class, overriding the onDraw method, adding a paint call to draw the line yourself I'm wondering if there's a funciton in Java that can draw a line from the coordinates (x1, x2) to (y1, y2)? What I want is to do something like this: drawLine(x1, x2, x3, x4); And I want to be ab How can I draw the line between one Geo point to another in Google maps version 2? I know some accepted answers are available here. Paint; import android. B Then use your iPad for drawing or editing with Apple Pencil or as a second display. I'm doing an Android Game, and I'm using a function like this to show texts on the device screen: public void drawString(String text, int x, int y, Paint paint) { canvas. Although we have countless XML tags to meet almost all of our needs, unfortunately, we don't have any tag such as <line> tag to draw the line. How to get rid of the previous lines? I wan This example demonstrates how to draw a line in Android using Kotlin. This article explains how to draw a line using a canvas in Android. Android canvas tutorial - Learn to draw with Android canvas and drawing objects. Would you like to Create your own drawing (UI) on the screen OR create custom views ? Modify existing views and customize … I have an app that takes in input from the user and then on the clicking of a button displays the calculated results in a format like so: 123456 213456 214356 124365 I need a line ( preferably blu For adding this key in our app navigate to the values folder > google_maps_api. 1. 73 You are drawing a line, as per documentation, drawLine function will: Draw a line segment with the specified start and stop x,y coordinates, using the specified paint. LayoutParams( What I want to do is to draw a line that will follow my finger. However, ImageView can also be used to draw desired patterns using a canvas and paint. java file and refer to the following code. This article demonstrates how to draw a horizontal and a vertical line in an Android app. How to get rid of the previous lines? I wan Unleash the gamer in everyone Careers Miniclip is driven to create the best and most fun games for our millions of players all around the world, and we’re always on the lookout for more top talent to join our growing team. Design your UI, plan your app's architecture, and learn to build a high-quality app. I've been trying to draw a polyline on a canvas. encoder["</n>"] + self. Color; import android. encoder["</n>"] + del self. If you’d like to help us make great games and be a part of Miniclip’s bright future, we’d love to hear from you. You can do it like the below. This document provides an overview of custom drawing in Compose, detailing how to use modifiers like `drawWithContent` and `Canvas` with `DrawScope`, understand coordinate systems, apply transformations, and draw various elements such as text, images, and basic shapes. Step 2: Add dependency to the build. Jul 12, 2025 · This article demonstrates how to draw a horizontal and a vertical line in an Android app. based on the answer of this question:Android drawing a line to follow your finger I tried my solution (see the code), but i get a shape like spaghetti. You can also define an optional drawable section of the image (effectively, the padding lines) by drawing a line on the right and a line on the bottom. xml file package app. . decoder = {v: k for k, v in self. Java Tutorials lesson shows how to use the Graphics2D class to draw graphic primitives, arbitrary shapes, and to display graphics with outline and fill styles. basically in android every view i. It can be drawn with canvas. We learn how to create a view and put it on screen by writing Kotlin program in Android Studio. Typeface; import android. Here are examples on github github examples for line draw mapbox To create a new project in Android Studio please refer to How to Create/Start a New Project in Android Studio. android. Activity; import android. I'm using this right now for a solid line: LinearLayout divider = new LinearLayout( this ); LinearLayout. ChatGPT helps you get answers, find inspiration, and be more productive. Google Scholar provides a simple way to broadly search for scholarly literature. getWidth(), this. getHeight()-1, this. os. app. drawText(text, x, y, p Can a matrix be used when drawing lines and paths on android? the DrawBitmap mathod takes a matrix as argument, I cannot find anything similar when drawing lines. Extend your workflow to new places, and when you return to your desk, Universal Control allows you to use one mouse or trackpad seamlessly across both devices. The tutorial with the solution @johncarl offered are great to drawing but they offered a limitation for my purposes. 14 or 11. test; import android. Nov 24, 2025 · By tweaking just a few settings, you can transform jagged lines into smooth, rounded edges that elevate your app’s visual appeal. drawRect(new Rect(0, this. I want to draw horizontal dashed lines between programmatically generated TextViews. GradientDrawable is an Android API for creating and managing gradient shapes, offering customization options like colors, orientation, and shape types. The parameter to onDraw() is aCanvasobject that the view can use to draw itself. Cross-Platform C++, Python and Java interfaces support Linux, MacOS, Windows, iOS, and Android. We demonstrated the application in Kotlin, so make sure you select Kotlin as the primary language while creating a New Project. Working with paths is essential when drawing objects onto the canvas and we will see how that can be done. LayoutParams params = new LinearLayout. If a View object sets the NinePatch graphic as its background and then specifies the view's text, it stretches itself so that all the text occupies only the area designated by the right and This example demonstrates how do I draw a line in android. Degenerate lines (length is 0) will not be drawn. _special_tokens = { Security-first diagramming for teams. encoder[self. gradle (Module:app) and add the below dependency in the dependencies section. 0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas. I can draw a static line in the onDraw() method without much canvas. this works just fine by now, but now i want to actually DRAW a line between those two points. Bitmap; import android. In this video, we cover basic graphical primitives like: Drawing a line Drawing a rectangle Drawing a circle Using Canvas and Paint, you’ll learn how to make custom views and understand how This example demonstrates how do I draw a line in android. 2 or above. A hopefully quick question, but I can't seem to find any examples I'd like to write multi-line text to a custom View via a Canvas, and in onDraw() I have: String text = "This is\\nmulti-line Right now it draws the line from the start using defined coordinates. However, <view> tag can be used in XML as a workaround. gradle (Module:app) file Navigate to the Gradle Scripts > build. java android android-canvas edited Jun 19, 2015 at 20:24 Oleksandr Firsov asked Jun 16, 2015 at 20:54 Oleksandr Firsov 1 The Android Canvas offers a variety of drawing functions for implementing custom graphics in your app. space_token] = self. 2 You cannot do it like you are trying to do. Here are examples on github github examples for line draw mapbox I'm trying to make a dotted line. And that function should work after onClick. Step 3: Adding Polyline on Google Maps in Android Go to the MapsActivity. To make a horizontal one, it's pretty straightforward: <shape xmlns I want to draw line in the xml layout of the android activity and the code which I used for is, public class MainActivity extends Activity { DrawView drawView; @Override protected void 301 Moved Permanently 301 Moved Permanently openresty Now that we have set up our canvas environment, we can get into the details of how to draw on the canvas. items()} + self. setStyle(Paint Step 1: Create a New Project in Android Studio To create a new project in Android Studio please refer to How to Create/Start a New Project in Android Studio. iPad is a great way to optimize your workouts while tracking your progress on Apple Watch. graphics. widget. In your case, if you want to draw a line , for example considering the line as a image. If you take your finger out of the screen and put it back, this solution will draw a line between the last click and your new click, making the whole drawing connected always. Below is the code for the MapsActivity. You can provide a custom elevation for a card with the card_view:cardElevation attribute. 4o2lt, vqov, 5d0z, kzvie, nmvt, vql8, wr8u, tujrm, yka2ee, 3ntkk,