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把一张合成图分拆出各个小图
反编译一个程序,看到一张合成图,想分拆出里面的每个小图,知道了各个图的坐标大小后,写了一个小方法,希望对大家有用哈
package com.bitimage;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import android.app.Activity;import android.graphics.Bitmap;import android.graphics.Bitmap.CompressFormat;import android.graphics.drawable.BitmapDrawable;import android.graphics.drawable.Drawable;import android.os.Bundle;import android.os.Environment;public class BigImageToSmall extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); int[] ix = { 0, 0, 32, 64, 96, 128, 168, 208, 248, 0, 33, 66, 99, 132, 150, 168, 132, 150, 168, 186, 204, 222, 186, 204, 222, 0, 0, 0, 240, 240, 260, 260, 0, 31, 95, 159, 223, 700, 670, 670, 287, 0, 260, 0, 12, 24, 36, 48, 60, 72, 84, 96, 108, 0, 670, 670, 0, 0, 626, 648, 0, 298, 0, 288, 320, 0, 0, 670, 702, 734, 670, 702, 734, 670, 702, 734, 670, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 702, 0, 0, 0, 0, 0, 320, 0 }; int[] iy = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 42, 42, 42, 42, 40, 40, 40, 58, 58, 58, 40, 40, 40, 58, 58, 58, 76, 127, 144, 40, 57, 231, 248, 280, 280, 280, 280, 280, 295, 234, 295, 280, 321, 153, 153, 153, 153, 153, 153, 153, 153, 153, 153, 153, 355, 0, 139, 504, 225, 0, 0, 170, 40, 425, 0, 263, 0, 0, 333, 333, 333, 380, 380, 380, 427, 427, 427, 474, 153, 153, 153, 153, 153, 153, 153, 153, 153, 153, 474, 0, 0, 0, 0, 0, 0, 459 }; int[] iw = { 0, 32, 32, 32, 32, 40, 40, 40, 40, 33, 33, 33, 33, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 290, 320, 294, 58, 48, 58, 58, 31, 64, 64, 64, 64, 44, 80, 30, 31, 320, 50, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 310, 113, 110, 308, 260, 22, 22, 260, 17, 320, 28, 202, 1, 1, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 76, 1, 1, 1, 1, 1, 306, 320 }; int[] ih = { 0, 42, 42, 42, 42, 35, 35, 35, 35, 34, 34, 34, 34, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 51, 17, 9, 17, 9, 17, 17, 41, 41, 41, 41, 41, 24, 61, 32, 41, 34, 78, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 70, 139, 95, 40, 55, 520, 520, 55, 20, 34, 36, 57, 1, 1, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 48, 1, 1, 1, 1, 1, 263, 45 }; System.out.println("ix length = " + ix.length); System.out.println("iy length = " + iy.length); System.out.println("iw length = " + iw.length); System.out.println("ih length = " + ih.length); FileOutputStream fos = null; for (int i = 1; i < 95; i++) { System.out.println(i); String aa = String.format("a%02d", i); File file = new File(Environment.getExternalStorageDirectory(), aa + ".png");// File file = new File(System.getProperty("user.dir"),"a"// + i + ".png"); System.out.println(file); if (!file.exists()) { try { file.createNewFile(); } catch (IOException e) { e.printStackTrace(); } } Drawable d = getResources().getDrawable(R.drawable.cs_jmp); BitmapDrawable bd = (BitmapDrawable) d; Bitmap bm = bd.getBitmap(); Bitmap bitmap = Bitmap.createBitmap(bm, ix[i], iy[i], iw[i], ih[i]); ByteArrayOutputStream baos = new ByteArrayOutputStream(); bitmap.compress(CompressFormat.PNG, 100, baos); InputStream in = new ByteArrayInputStream(baos.toByteArray()); try { fos = new FileOutputStream(file); byte[] bytes = new byte[100]; int tempbyte; while ((tempbyte = in.read(bytes)) != -1) { System.out.println("tempbyte = " + tempbyte); fos.write(bytes,0,tempbyte); } fos.flush(); } catch (Exception e) { e.printStackTrace(); } finally { if (fos != null) { try { fos.close(); } catch (IOException e) { e.printStackTrace(); } } if (in != null) { try { in.close(); } catch (IOException e) { e.printStackTrace(); } } } } }}
记得加权限哦
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
demo图片
把一张合成图分拆出各个小图
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