convert bitmap to png

/*************************************** **************************************** ************** Author: conowen @ Dazhong* E-mail: conowen@hotmail.com* Http://blog.csdn.net/conowen* Note: This article is original and only used for learning and

Today, Bitmap is used many times. Bitmap is simply a Bitmap. You need to obtain image resources for some image processing operations.1. Related Concepts 1. Drawable is a printable object. It may be a BitmapDrawable, A ShapeDrawable, or LayerDrawable

Common bitmap Processing Methods in Android A lot of bitmap-related processing methods have been collected, and almost all of them are applied to projects!   Package com. tmacsky. utils; import java. io. byteArrayOutputStream; import java. io.

Bitmap is the most commonly used resource in our development. After all, a beautiful interface is the most attractive to users.1. Retrieve bitmap from resource Bitmapdrawable or bitmapfactory can be used to obtain bitmaps in resources. Of course,

Bitmap related1. Bitmap is more special because it can not be created and can only be aided by the bitmapfactory and according to the source of the image may be divided into the following situations:* PNG images such as: R.drawable.tianjinJava

Bitmaps are the most commonly used resource in our development, after all, a beautiful interface is the most attractive to the user.1. Getting a bitmap from a resourceYou can use bitmapdrawable or bitmapfactory to get a bitmap from a resource.Of

Package COM. soai. imdemo; import Java. io. bytearrayinputstream; import Java. io. bytearrayoutputstream; import Java. io. inputstream; import android. graphics. bitmap; import android. graphics. bitmapfactory; import android. graphics. canvas;

Basic operations of drawable and Bitmap, drawablebitmap 1. drawable graphical objects. Images in common formats can be reprinted, which may be Bitmapdrawable, shapedrawable, or GIF, PNG, or JEPG. 2. Bitmap is a Bitmap for image processing. 3. Canvas

Drawable and Bitmap conversion, drawablebitmap1. Bitmap to DrawableBitmap bm = xxx; // xxx is obtained based on your situationBitmapDrawable bd = new BitmapDrawable (bm );Because BtimapDrawable is a subclass of Drawable, you can directly use the bd

1. How to Create a bitmapdrawable object Bitmap represents a bitmap image. Android supports bitmap images in three formats:. PNG (preferred}.jpg (acceptable) and. GIF (discouraged ). The secondary node has the worst support. You can directly use the