There are two way by which you can make use of the camera in you android application. Similar to bitmap, you can use nine patch files and nine patch xml. An example use of a nine patch is the backgrounds used by standard android buttons buttons must stretch to accommodate strings of various lengths. Using existing android camera application in our application.
There are various tools to generate 9 patch, one of which is provided in the sdk itself. The reason i ask, is that when you apply a scale animation to a drawable w a stroke on it, the stroke appears to thicken. A ninepatchdrawable graphic is a stretchable bitmap image, which android will automatically resize to accommodate the contents of the view in which you have placed it as the background. A ninepatch drawable is a standard png image that includes an extra 1pixelwide border. The android support library includes the palette class, which lets you extract prominent colors from an image. An imageview that always square, matching parents width. Rename your image file by rightclick then refactor rename and change the extension from.
About shape, state list, layer list and ninepatch drawables. Getting started in android development part 10 nine patch. See figure below, no matter which folder you put, android will find your image automatically. Android imageview with nine patch background are rotated at. Displaying images and animation in android tutorial. Directly using camera api provided by android in our application. Jul 16, 2012 to create a 9 patch image you need to start with a. Jul 28, 2008 in fact, i suspect it really would like you to use the socalled nine patch style png, where you use an outer border of pixels to provide instructions to android for how to stretch the png. Content and code samples on this page are subject to the licenses described in the. Generally, the center patch is transparent or solid, with parts of the edges set to remain fixed, other edge parts set to stretch, and the corners set to remain fixed. Increase the canvas size to add a 1 pixel border around the entire image. Included as part of the android sdk is a draw 9 patch utility.
May 26, 2011 making a 9 patch image is a fairly easy process. Android offers a custom 2d graphics library for drawing and animating shapes and images. Android chat bubble layout with 9 patch image using listview. An imageview that always square, matching parent s width squareimageview. This will organizes the image resources according to the types android guidelines and the lessons have mentioned. Mar 23, 2020 here you can define stretchable regions that android scales when content within the view exceeds the normal image bounds. Right click res folder select android resource directory under resource type, selectt drawable create folders. About shape, state list, layer list and nine patch drawables in android android 15. How to programmatically reapply a 9patch image to an imageview. Nine patch 9patch images are normal images with an additional 1 pixel border. Put your images into folder resdrawableldpi, resdrawablemdpi or resdrawablehdpi. Display captured photo on imageview using android camera.
Start with a png image, put it in any drawable folder in your project. Add code for imageview in your xml layout to display the above. Draw your graphics or animations into a view object from your layout. How to create 9 patch images chrislondon9patchimagefor. There are various tools to generate 9patch, one of which is provided in the sdk itself. In the event of a click, use the setimagedrawable method to apply the. One of androids most wellknown points to consider in application development is the requirement to support a variety of different screen sizes and orientations in an application. In this android tutorial we are going to learn how to display captured photo in imageview using android camera application. Different between ninepatch image vs regular bitmap image in. Does all resource all in res folder if on eclipse ide, specially drawable image, is loaded to memory during runtime. Locate the sdk folder and you can find the application in toolsdraw9patch.
Navigate to the folder where you installed the sdk. Drawables are used to define shapes, colors, borders, gradients, etc. When you need to display static images in your app, you can use the drawable class and its. Setting up image drawable source from mainactivity. A drawable resource is a general concept for a graphic that can be drawn to the screen. No longer do you have to struggle with densities for android, especially when dealing with 9 patch png. View 1 replies view related android setting an image view. An imageview that always square, matching parents width squareimageview. Instead of just manipulating the bitmap, i need to also include the 9patch chunk, which is. About shape, state list, layer list and ninepatch drawables in android. The images can be sliced up into even smaller pieces. June, 2010 by dave android in 9patch, android, drawable 9patches explained. Jun 10, 2011 above is the sample result of grabbing an image from url to display in an imageview control. For more information, read selecting colors with the palette api.
In fact, i suspect it really would like you to use the socalled nine patch style png, where you use an outer border of pixels to provide instructions to android for how to stretch the png. You can define a list of drawables in xml and use it as drawable resource in your android app. Jpegs dont make good 9 patch images because they blur colors. Or it is just like a file which is available when the application need it. Im a webdeveloper, looking for the best experience, working between development and design. Is there a way to define a 9 patch drawable in an android xml file. A nine patch drawable graphic is a stretchable bitmap image, which android will automatically resize to accommodate the contents of the view in which you have placed it as the background. Inside this folder will be the draw 9 patch program. You can imagine a scenario where a bitmap is used as a background for a textview.
An example use of a ninepatch image is the background used by androids standard button widget, which. So, i just made a new android resource directory for drawable type under the res directory. An example use of a ninepatch is the backgrounds used by standard android buttons buttons must stretch to accommodate strings of various lengths. Dec 17, 2009 view 2 replies view related android drawable resource loaded to memory. An imageview that always square, matching parent s width github. You can load your drawables as a bitmap and pass it to palette to access its colors. Android imageview set image programmatically from drawable. Please see create 9 patch file to know how to convert bitmap into nine patch image file. With that explanation and the advent of css3 you might think that there is no reason to use 9 patch images but the name 9 patch is a misnomer.
Jan 03, 2016 android imageview set image source src drawable dynamically using programming coding. Android how to create tiled drawable from xml resource. Without fitxy the 9 patch will not be honored and the image will just stretch as normal. Nine patch bitmaps are another, very useful way of customizing the appearance of android views.
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