QA

Quick Answer: How To Erase Drawing On Canvas In Android

4 Answers Create a canvas and set its bitmap. mCanvas = new Canvas(); mBitmap= Bitmap. When you want to erase something you just need to use setXfermode. public void onClickEraser() { if (isEraserOn) mPaint. Now you should be able draw with a transparent color using: mCanvas.drawPath(path, mPaint);.

How do you delete drawings on Android?

Steps Navigate to the project’s Drawings tool on your Android device. Search and filter for the drawing you would like to add an item to. Tap the drawing. Tap the drawing markup you would like to delete. Tap Delete. Changes are automatically saved, so you can exit the drawing when you’re done.

How do I clear my canvas on Android?

Just call Canvas. drawColor(Color. BLACK) , or whatever color you want to clear your Canvas with.

Can you use canvas on Android?

Canvas is available on the iPhone, iPad, and any device that runs Android. The Canvas app is available through the iTunes App Store or through the GooglePlay Store. A SpeedGrader app is also available for both the iPad tablets and Android phones and tablets.

Can we draw directly on canvas in android studio?

The Canvas class defines methods for drawing text, lines, bitmaps, and many other graphics primitives. You can use these methods in onDraw() to create your custom user interface (UI). Before you can call any drawing methods, though, it’s necessary to create a Paint object.

How do you delete a file on procore?

Steps Open the synced folder titled “Procore” in your computer’s file browser. Navigate to the folder that contains the files you want to delete. Select the files you want to delete. Right-click on the files and click Delete. Note: These files will now be automatically deleted from the folder and project in Procore.

How do I remove markup from procore?

Steps Navigate to your project’s Drawings tool. Click Open next to the drawing you want to mark up. Click the Markup icon. Click the Select, Multi Select, or Lasso from the markup toolbar. Select the markup(s) that you want to delete. Click the trash bin icon to delete the markup(s).

How do you make a bitmap on canvas?

2 Answers. Use the Canvas method public void drawBitmap (Bitmap bitmap, Rect src, RectF dst, Paint paint) . Set dst to the size of the rectangle you want the entire image to be scaled into.

What is canvas drawing in Android?

Canvas is a class in Android that performs 2D drawing of different objects onto the screen. The saying “a blank canvas” is very similar to what a Canvas object is on Android. It is basically, an empty space to draw onto.

What is canvas in mobile?

Canvas Student allows students to access their courses and groups using a mobile device. The app also provides access to course calendars, To Do items, notifications, and Conversations messages. Canvas Student is available for both Android and iOS devices.

How do you draw on an android screen?

Create a drawing On your Android phone or tablet, open the Google Keep app . At the bottom, tap New drawing note . Start drawing with your fingertip. To close the drawing, go to the top left and tap Back .

How do you redraw on canvas?

2 Answers Draw some things on the canvas. Calculate changes to the position of those things. Clear the canvas. Redraw all the things in their new positions.

What is DatePicker in android?

Android DatePicker is a widget to select date. It allows you to select date by day, month and year. Like DatePicker, android also provides TimePicker to select time. The android.

How do you delete a drawing?

To Delete an Individual Drawing From the Drawing View Page: Navigate to the project’s Drawings tool. Click the Info or Edit button next to the drawing you want to delete. Click Delete Revision. Confirm the deletion. Note: You will be directed to the most recent revision or Drawings log page.

How do I delete photos on procore?

Delete Individual Photos Navigate to the Photos tool. Click on the desired photo. Click the Trash Bin icon in the upper right. Confirm the delete action.

How do I delete a schedule on procore drive?

Navigate to the project’s Schedule tool. Click the Configure Settings icon. Click Clear Schedule to navigate to the Clear Schedule page. Under the Clear Current Schedule area, click the Clear Schedule button.

Can you remove markups?

Turn off Track Changes to stop adding more changes to a document. You can hide existing tracked changes temporarily by choosing No Markup in the Display for Review box. On the Review tab, in the Comments group, click the arrow below Delete, then click Delete All Comments in Document.

How do I edit a drawing in procore?

Steps Click Info next to the drawing you want to edit information for. Edit information for the drawing in the following sections: Click the field you want to edit. Edit the fields as necessary. To save changes made to fields in the ‘General Information’ section, click Update.

How do I remove markups from a PDF?

Deleting Markups From the Select & Zoom toolbar, select the Hand Tool. Right-click the markup you wish to delete » select Delete. OR. Select the markup and press [Delete]. The markup is deleted.

What is bitmap image in Android?

A bitmap (or raster graphic) is a digital image composed of a matrix of dots. When viewed at 100%, each dot corresponds to an individual pixel on a display. In a standard bitmap image, each dot can be assigned a different color. In this instance we will simply create a Bitmap directly: Bitmap b = Bitmap.

What is paint Android studio?

The Paint class holds the style and color information about how to draw geometries, text and bitmaps.

How do you draw a circle on Android?

Steps to Draw Circle Border in Android Initialize a Paint Object. Set AntiAlias and Dither effects to true, to get a smooth drawing effect of circle. Set paint style to STROKE. Draw Circle using Canvas and Paint Objects.

How Use spinner in android app explain with example?

The default value of the android spinner will be the currently selected value and by using Adapter we can easily bind the items to the spinner objects.Different Attributes for Spinner Widget. XML attributes Description android:textAlignment Used to the text alignment in the dropdown list.

What is RectF android?

android.graphics.RectF. RectF holds four float coordinates for a rectangle. The rectangle is represented by the coordinates of its 4 edges (left, top, right, bottom). These fields can be accessed directly. Use width() and height() to retrieve the rectangle’s width and height.

What is a custom view in android?

Custom Views is just a way to make an android developer a painter. When you need to create some custom and reuse the views when it is not provided by the Android Ecosystem. Custom Views can be used as widgets like TextView, EditText etc.