用android处理图片的时候,由于得到的资源不一样,所以经常要在各种格式中相互转化,以下介绍了 Bitmap Drawable byte[] InputStream 之间的转换方法: import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.InputStream; import android.graphics.Bitmap; import android.graphic…

Android中Bitmap, Drawable, Byte,ID之间的转化 1.  Bitmap 转化为 byte ByteArrayOutputStream out = new ByteArrayOutputStream(); bitmap.compress(Bitmap.CompressFormat.PNG, 100, out); byte[] array= out.toByteArray(); 2. byte转化为bitmap Bitmap bitmap = BitmapFactory.…

1.  Bitmap 转化为 byte ByteArrayOutputStream out = new ByteArrayOutputStream(); bitmap.compress(Bitmap.CompressFormat.PNG, 100, out); //100%保存 byte[] array= out.toByteArray(); 2. byte转化为bitmap final ContentResolver contentResolver = context.getContentRe…

逆转start协议输出 private static byte[] bitmap2byte(Bitmap bmp) throws Exception{ return bitmap2byte(bmp, null); } private static byte[] bitmap2byte(Bitmap bmp, StarReverseConfig config) throws Exception{ Long s = System.currentTimeMillis(); String TAG = "…

1.缩放 public Bitmap scalingBitmap(Bitmap bitmap, int newW, int newH) { int w = bitmap.getWidth(); int h = bitmap.getHeight(); float sx = (float) newW / w; float sy = (float) newH / h; Matrix matrix = new Matrix(); matrix.postScale(sx, sy); // 长和宽放大缩小的…

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; import android.grap…

import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.InputStream; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.PixelFormat; import…

原文:http://wuxiaolong.me/2015/08/10/Drawable-to-Bitmap/ Drawable互转Bitmap Drawable转Bitmap 1234 Resources res = getResources();Drawable drawable = res.getDrawable(R.drawable.myimage);BitmapDrawable bd = (BitmapDrawable) d;Bitmap bm = bd.getBitmap(); 123…

转自http://blog.csdn.net/june5253/article/details/7826597 1.Bitmap-->Drawable Bitmap drawable2Bitmap(Drawable drawable) { if (drawable instanceof BitmapDrawable) { return ((BitmapDrawable) drawable).getBitmap(); } else if (drawable instanceof NinePatch…

很多开发者表示,不知道Android的Drawable和Bitmap之间如何相关转换.下面给大家两种比较简单高效的方法. 一.Bitmap转Drawable Bitmap bm=xxx; //xxx根据你的情况获取  BitmapDrawable bd=BitmapDrawable(bm); Android开发网提示因为BtimapDrawable是Drawable的子类,最终直接使用bd对象即可. 二. Drawable转Bitmap 转成Bitmap对象后,可以将Drawable对象通过An…