之前提到过GIF的合成和有两种方式，一种为JNI，一种是修改了某位国外前辈多年前些的AnimatedGifEncoder.java。既然要对GIF进行处理，还会涉及到GIF的拆分，即将GIF图片拆分成单针的格式。
其实也挺简单的，主要是用了gifview中的GifAction.java对其进行改造。然后加载gif图片成功后，利用自定义AsyncTask进行拆分保存。不废话了，贴一下关键代码吧。下面的代码有地方命名不规范（是我参照一个叫GIF图片处理的工具扣下来的），但是大家凑合看吧哈~~~
文章的最后我会放出GIF合成，分解，和处理的DEMO，能顺利运行。但是由于工作比较忙，demo就没有对代码重构。大家有时间可以帮忙重构一下分享出来。
package com.johdan.gif.separate.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import android.app.Activity;
import android.app.ProgressDialog;
import android.graphics.Bitmap;
import android.os.AsyncTask;
import android.os.Handler;
import android.os.Message;
import android.widget.Toast;
import com.ant.liao.GifAction;
import com.johdan.gif.merge.R;
/**
* gif动画变多张jpg图片
* @author jodhan
*
*/
public class SeparateGifTask implements GifAction {
private Activity context;
private File file;
private String filename;
private GifDecoderSeparate gifDecoder;
private Handler handler;
private ProgressDialog progressDialog;
private String savePath;
private int[] delays;
private String[] listpath;
public static boolean isDecodeOK=false;
public int[] getDelays(){
return delays;
}
public String[] getListPath(){
return listpath;
}
Handler outHandler;
public Handler getOutHandler() {
return outHandler;
}
public void setOutHandler(Handler outHandler) {
this.outHandler = outHandler;
}
public SeparateGifTask(File paramFile, String paramString, Activity context){
this.file = paramFile;
this.savePath = paramString;
this.context = context;
GifDecoderSeparate localGifDecoder = new GifDecoderSeparate(this);
this.gifDecoder = localGifDecoder;
String str = this.file.getName();
this.filename = str;
Handler local1 = new Handler(){
@Override
public void handleMessage(Message msg) {
// TODO Auto-generated method stub
// super.handleMessage(msg);
switch(msg.what){
case 0:
//**********************************************/
SeparateTask separateTask = new SeparateTask();
separateTask.execute(null);
break;
case 1:
/******将对应的分解后路径放入listpath中*****/
//设置对应的属性为true
isDecodeOK=true;
break;
default:
break;
}
}
};
this.handler = local1;
}
@Override
public void parseOk(boolean parseStatus, int frameIndex) {
// TODO Auto-generated method stub
// System.out.println(R.string.now_sepa_gif);
System.out.println("----2222---"+this.gifDecoder.parseOk());
if (this.gifDecoder.parseOk())
{
this.progressDialog.dismiss();
System.out.println("-------"+this.gifDecoder.parseOk());
this.handler.sendEmptyMessage(0);
// boolean bool = this.handler.sendEmptyMessage(0);
// int[] delays = this.gifDecoder.getDelays();
this.delays=this.gifDecoder.getDelays();
listpath =new String[delays.length];
System.out.println("delays的长度"+delays.length);
for(int delay : delays){
System.out.println("间隔的"+delays.length);
}
System.out.println(R.string.now_sepa_gif);
//停止线程不知道为啥就报错，郁闷。
//在合并的时候影响图片，也不知道是不是因为停止线程的缘故。
// this.gifDecoder.stop();
}
}
public void saveBitmap(int paramInt, Bitmap paramBitmap, String paramString)
{
String str1;
try
{
str1 = String.valueOf(this.savePath);
StringBuilder localStringBuilder = new StringBuilder(str1);
String str2 = this.filename;
int i = this.filename.indexOf(".gif");
String str3 = str2.substring(0, i);
String str4 = str3 + "_" + paramInt + paramString;
File localFile = new File(str1+str4);
//对每个图片的路径进行保存
listpath[paramInt-1]=str1+str4;
System.out.println("path:"+str1+str4);
localFile.createNewFile();
FileOutputStream localFileOutputStream = new FileOutputStream(localFile);
// Bitmap.CompressFormat localCompressFormat = Bitmap.CompressFormat.JPEG;
Bitmap.CompressFormat localCompressFormat = Bitmap.CompressFormat.PNG;
boolean bool = paramBitmap.compress(localCompressFormat, 100, localFileOutputStream);
localFileOutputStream.flush();
localFileOutputStream.close();
return;
}
catch (Exception localException)
{
localException.printStackTrace();
}
}
public void start()
{
GifDecoderSeparate localGifDecoder;
try
{
localGifDecoder = this.gifDecoder;
File localFile = this.file;
FileInputStream localFileInputStream = new FileInputStream(localFile);
localGifDecoder.setGifImage(localFileInputStream);
this.gifDecoder.start();
Activity localGifPlayerAndMakerActivity = this.context;
StringBuilder localStringBuilder = new StringBuilder("正在解析");
String str1 = this.filename;
String str2 = localStringBuilder + str1 + "中...";
ProgressDialog localProgressDialog = ProgressDialog.show(localGifPlayerAndMakerActivity, "解析GIF", str2);
this.progressDialog = localProgressDialog;
this.progressDialog.show();
return;
}
catch (FileNotFoundException localFileNotFoundException)
{
localFileNotFoundException.printStackTrace();
}
}
class SeparateTask extends AsyncTask<Void, Integer, Void>
{
private ProgressDialog progressDialog;
@Override
protected Void doInBackground(Void... params) {
int i = 0;
while (true)
{
int j = SeparateGifTask.this.gifDecoder.getFrameCount();
if (i >= j)
return null;
SeparateGifTask localSeparateGifTask = SeparateGifTask.this;
int k = i + 1;
Bitmap localBitmap = SeparateGifTask.this.gifDecoder.getFrameImage(i);
localSeparateGifTask.saveBitmap(k, localBitmap, ".png");
Integer[] arrayOfInteger = new Integer[1];
Integer localInteger = Integer.valueOf(i + 1);
arrayOfInteger[0] = localInteger;
publishProgress(arrayOfInteger);
i += 1;
}
}
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
Activity localGifPlayerAndMakerActivity = SeparateGifTask.this.context;
ProgressDialog localProgressDialog1 = new ProgressDialog(localGifPlayerAndMakerActivity);
this.progressDialog = localProgressDialog1;
this.progressDialog.setTitle(R.string.prompt);
ProgressDialog localProgressDialog2 = this.progressDialog;
int i = SeparateGifTask.this.gifDecoder.getFrameCount();
localProgressDialog2.setMax(i);
ProgressDialog localProgressDialog3 = this.progressDialog;
String str1 = String.valueOf(SeparateGifTask.this.context.getResources().getString(R.string.now_sepa_gif));
StringBuilder localStringBuilder = new StringBuilder(str1).append("0/");
int j = SeparateGifTask.this.gifDecoder.getFrameCount();
String str2 = j+"";
localProgressDialog3.setMessage(localStringBuilder+str2);
this.progressDialog.setProgressStyle(1);
this.progressDialog.show();
super.onPreExecute();
}
@Override
protected void onPostExecute(Void result) {
// TODO Auto-generated method stub
this.progressDialog.dismiss();
Activity localGifPlayerAndMakerActivity1 = SeparateGifTask.this.context;
// String str1 = SeparateGifTask.this.context.getNowPath();
// localGifPlayerAndMakerActivity1.listPath(str1);
Activity localGifPlayerAndMakerActivity2 = SeparateGifTask.this.context;
String str2 = SeparateGifTask.this.context.getResources().getString(R.string.cancel_success);
Toast.makeText(localGifPlayerAndMakerActivity2, str2, 0).show();
isDecodeOK =true;
outHandler.sendEmptyMessage(3);
handler.sendEmptyMessage(1);
super.onPostExecute(result);
}
@Override
protected void onProgressUpdate(Integer... values) {
// TODO Auto-generated method stub
ProgressDialog localProgressDialog1 = this.progressDialog;
// int i = paramArrayOfInteger[0].intValue();
int i = values[0].intValue();
localProgressDialog1.setProgress(i);
ProgressDialog localProgressDialog2 = this.progressDialog;
String str1 = String.valueOf(SeparateGifTask.this.context.getResources().getString(R.string.now_sepa_gif));
StringBuilder localStringBuilder1 = new StringBuilder(str1);
// Integer localInteger = paramArrayOfInteger[0];
Integer localInteger = values[0];
StringBuilder localStringBuilder2 = localStringBuilder1.append(localInteger).append("/");
int j = SeparateGifTask.this.gifDecoder.getFrameCount();
String str2 = j+"";
localProgressDialog2.setMessage(localStringBuilder2+str2);
super.onProgressUpdate(values);
}
@Override
protected void onCancelled() {
// TODO Auto-generated method stub
this.progressDialog.dismiss();
Activity localGifPlayerAndMakerActivity = SeparateGifTask.this.context;
String str = SeparateGifTask.this.context.getResources().getString(R.string.cancel_sepa);
Toast.makeText(localGifPlayerAndMakerActivity, str, 0).show();
super.onCancelled();
}
}
}
这里的GifDecoderSeparate是对GifDecoder进行了简单的改造，添加了2个方法。
package com.johdan.gif.separate.util;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.graphics.Bitmap.Config;
import android.os.Environment;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import com.ant.liao.GifAction;
import com.ant.liao.GifFrame;
public class GifDecoderSeparate extends Thread
{
/**状态：正在解码中*/
public static final int STATUS_PARSING = 0;
/**状态：图片格式错误*/
public static final int STATUS_FORMAT_ERROR = 1;
/**状态：打开失败*/
public static final int STATUS_OPEN_ERROR = 2;
/**状态：解码成功*/
public static final int STATUS_FINISH = -1;
private InputStream in;
private int status;
public int width; // full image width
public int height; // full image height
private boolean gctFlag; // global color table used
private int gctSize; // size of global color table
private int loopCount = 1; // iterations; 0 = repeat forever
private int[] gct; // global color table
private int[] lct; // local color table
private int[] act; // active color table
private int bgIndex; // background color index
private int bgColor; // background color
private int lastBgColor; // previous bg color
private int pixelAspect; // pixel aspect ratio
private boolean lctFlag; // local color table flag
private boolean interlace; // interlace flag
private int lctSize; // local color table size
private int ix, iy, iw, ih; // current image rectangle
private int lrx, lry, lrw, lrh;
private Bitmap image; // current frame
private Bitmap lastImage; // previous frame
private GifFrame currentFrame = null;
private boolean isShow = false;
private byte[] block = new byte[256]; // current data block
private int blockSize = 0; // block size
// last graphic control extension info
private int dispose = 0;
// 0=no action; 1=leave in place; 2=restore to bg; 3=restore to prev
private int lastDispose = 0;
private boolean transparency = false; // use transparent color
private int delay = 0; // delay in milliseconds
private int transIndex; // transparent color index
private static final int MaxStackSize = 4096;
// max decoder pixel stack size
// LZW decoder working arrays
private short[] prefix;
private byte[] suffix;
private byte[] pixelStack;
private byte[] pixels;
private GifFrame gifFrame; // frames read from current file
private int frameCount;
private GifAction action = null;
private byte[] gifData = null;
public GifDecoderSeparate(byte[] data,GifAction act){
gifData = data;
action = act;
}
public GifDecoderSeparate(InputStream is,GifAction act){
in = is;
action = act;
}
public void run(){
if(in != null){
readStream();
}else if(gifData != null){
readByte();
}
}
/**
* 释放资源
*/
public void free(){
GifFrame fg = gifFrame;
while(fg != null){
fg.image = null;
fg = null;
gifFrame = gifFrame.nextFrame;
fg = gifFrame;
}
if(in != null){
try{
in.close();
}catch(Exception ex){}
in = null;
}
gifData = null;
}
/**
* 当前状态
* @return
*/
public int getStatus(){
return status;
}
/**
* 解码是否成功，成功返回true
* @return 成功返回true，否则返回false
*/
public boolean parseOk(){
return status == STATUS_FINISH;
}
/**
* 取某帧的延时时间
* @param n 第几帧
* @return 延时时间，毫秒
*/
public int getDelay(int n) {
delay = -1;
if ((n >= 0) && (n < frameCount)) {
// delay = ((GifFrame) frames.elementAt(n)).delay;
GifFrame f = getFrame(n);
if (f != null)
delay = f.delay;
}
return delay;
}
/**
* 取所有帧的延时时间
* @return
*/
public int[] getDelays(){
GifFrame f = gifFrame;
int[] d = new int[frameCount];
int i = 0;
while(f != null && i < frameCount){
d[i] = f.delay;
f = f.nextFrame;
i++;
}
return d;
}
/**
* 取总帧 数
* @return 图片的总帧数
*/
public int getFrameCount() {
return frameCount;
}
/**
* 取第一帧图片
* @return
*/
public Bitmap getImage() {
return getFrameImage(0);
}
public int getLoopCount() {
return loopCount;
}
private void setPixels() {
int[] dest = new int[width * height];
// fill in starting image contents based on last image's dispose code
if (lastDispose > 0) {
if (lastDispose == 3) {
// use image before last
int n = frameCount - 2;
if (n > 0) {
lastImage = getFrameImage(n - 1);
} else {
lastImage = null;
}
}
if (lastImage != null) {
lastImage.getPixels(dest, 0, width, 0, 0, width, height);
// copy pixels
if (lastDispose == 2) {
// fill last image rect area with background color
int c = 0;
if (!transparency) {
c = lastBgColor;
}
for (int i = 0; i < lrh; i++) {
int n1 = (lry + i) * width + lrx;
int n2 = n1 + lrw;
for (int k = n1; k < n2; k++) {
dest[k] = c;
}
}
}
}
}
// copy each source line to the appropriate place in the destination
int pass = 1;
int inc = 8;
int iline = 0;
for (int i = 0; i < ih; i++) {
int line = i;
if (interlace) {
if (iline >= ih) {
pass++;
switch (pass) {
case 2:
iline = 4;
break;
case 3:
iline = 2;
inc = 4;
break;
case 4:
iline = 1;
inc = 2;
}
}
line = iline;
iline += inc;
}
line += iy;
if (line < height) {
int k = line * width;
int dx = k + ix; // start of line in dest
int dlim = dx + iw; // end of dest line
if ((k + width) < dlim) {
dlim = k + width; // past dest edge
}
int sx = i * iw; // start of line in source
while (dx < dlim) {
// map color and insert in destination
int index = ((int) pixels[sx++]) & 0xff;
int c = act[index];
if (c != 0) {
dest[dx] = c;
}
dx++;
}
}
}
image = Bitmap.createBitmap(dest, width, height, Config.ARGB_4444);
}
/**
* 取第几帧的图片
* @param n 帧数
* @return 可画的图片，如果没有此帧或者出错，返回null
*/
public Bitmap getFrameImage(int n) {
GifFrame frame = getFrame(n);
if (frame == null)
return null;
else
return frame.image;
}
/**
* 取当前帧图片
* @return 当前帧可画的图片
*/
public GifFrame getCurrentFrame(){
return currentFrame;
}
/**
* 取第几帧，每帧包含了可画的图片和延时时间
* @param n 帧数
* @return
*/
public GifFrame getFrame(int n) {
GifFrame frame = gifFrame;
int i = 0;
while (frame != null) {
if (i == n) {
return frame;
} else {
frame = frame.nextFrame;
}
i++;
}
return null;
}
/**
* 重置，进行本操作后，会直接到第一帧
*/
public void reset(){
currentFrame = gifFrame;
}
/**
* 下一帧，进行本操作后，通过getCurrentFrame得到的是下一帧
* @return 返回下一帧
*/
public GifFrame next() {
if(isShow == false){
isShow = true;
return gifFrame;
}else{
if(status == STATUS_PARSING){
if(currentFrame.nextFrame != null)
currentFrame = currentFrame.nextFrame;
//currentFrame = gifFrame;
}else{
currentFrame = currentFrame.nextFrame;
if (currentFrame == null) {
currentFrame = gifFrame;
}
}
return currentFrame;
}
}
private int readByte(){
in = new ByteArrayInputStream(gifData);
gifData = null;
return readStream();
}
// public int read(byte[] data){
// InputStream is = new ByteArrayInputStream(data);
// return read(is);
// }
private int readStream(){
init();
if(in != null){
readHeader();
if(!err()){
readContents();
if(frameCount < 0){
status = STATUS_FORMAT_ERROR;
action.parseOk(false,-1);
}else{
status = STATUS_FINISH;
action.parseOk(true,-1);
}
}
try {
in.close();
} catch (Exception e) {
e.printStackTrace();
}
}else {
status = STATUS_OPEN_ERROR;
action.parseOk(false,-1);
}
return status;
}
private void decodeImageData() {
int NullCode = -1;
int npix = iw * ih;
int available, clear, code_mask, code_size, end_of_information, in_code, old_code, bits, code, count, i, datum, data_size, first, top, bi, pi;
if ((pixels == null) || (pixels.length < npix)) {
pixels = new byte[npix]; // allocate new pixel array
}
if (prefix == null) {
prefix = new short[MaxStackSize];
}
if (suffix == null) {
suffix = new byte[MaxStackSize];
}
if (pixelStack == null) {
pixelStack = new byte[MaxStackSize + 1];
}
// Initialize GIF data stream decoder.
data_size = read();
clear = 1 << data_size;
end_of_information = clear + 1;
available = clear + 2;
old_code = NullCode;
code_size = data_size + 1;
code_mask = (1 << code_size) - 1;
for (code = 0; code < clear; code++) {
prefix[code] = 0;
suffix[code] = (byte) code;
}
// Decode GIF pixel stream.
datum = bits = count = first = top = pi = bi = 0;
for (i = 0; i < npix;) {
if (top == 0) {
if (bits < code_size) {
// Load bytes until there are enough bits for a code.
if (count == 0) {
// Read a new data block.
count = readBlock();
if (count <= 0) {
break;
}
bi = 0;
}
datum += (((int) block[bi]) & 0xff) << bits;
bits += 8;
bi++;
count--;
continue;
}
// Get the next code.
code = datum & code_mask;
datum >>= code_size;
bits -= code_size;
// Interpret the code
if ((code > available) || (code == end_of_information)) {
break;
}
if (code == clear) {
// Reset decoder.
code_size = data_size + 1;
code_mask = (1 << code_size) - 1;
available = clear + 2;
old_code = NullCode;
continue;
}
if (old_code == NullCode) {
pixelStack[top++] = suffix[code];
old_code = code;
first = code;
continue;
}
in_code = code;
if (code == available) {
pixelStack[top++] = (byte) first;
code = old_code;
}
while (code > clear) {
pixelStack[top++] = suffix[code];
code = prefix[code];
}
first = ((int) suffix[code]) & 0xff;
// Add a new string to the string table,
if (available >= MaxStackSize) {
break;
}
pixelStack[top++] = (byte) first;
prefix[available] = (short) old_code;
suffix[available] = (byte) first;
available++;
if (((available & code_mask) == 0)
&& (available < MaxStackSize)) {
code_size++;
code_mask += available;
}
old_code = in_code;
}
// Pop a pixel off the pixel stack.
top--;
pixels[pi++] = pixelStack[top];
i++;
}
for (i = pi; i < npix; i++) {
pixels[i] = 0; // clear missing pixels
}
}
private boolean err() {
return status != STATUS_PARSING;
}
private void init() {
status = STATUS_PARSING;
frameCount = 0;
gifFrame = null;
gct = null;
lct = null;
}
private int read() {
int curByte = 0;
try {
curByte = in.read();
} catch (Exception e) {
status = STATUS_FORMAT_ERROR;
}
return curByte;
}
private int readBlock() {
blockSize = read();
int n = 0;
if (blockSize > 0) {
try {
int count = 0;
while (n < blockSize) {
count = in.read(block, n, blockSize - n);
if (count == -1) {
break;
}
n += count;
}
} catch (Exception e) {
e.printStackTrace();
}
if (n < blockSize) {
status = STATUS_FORMAT_ERROR;
}
}
return n;
}
private int[] readColorTable(int ncolors) {
int nbytes = 3 * ncolors;
int[] tab = null;
byte[] c = new byte[nbytes];
int n = 0;
try {
n = in.read(c);
} catch (Exception e) {
e.printStackTrace();
}
if (n < nbytes) {
status = STATUS_FORMAT_ERROR;
} else {
tab = new int[256]; // max size to avoid bounds checks
int i = 0;
int j = 0;
while (i < ncolors) {
int r = ((int) c[j++]) & 0xff;
int g = ((int) c[j++]) & 0xff;
int b = ((int) c[j++]) & 0xff;
tab[i++] = 0xff000000 | (r << 16) | (g << 
| b;
}
}
return tab;
}
private void readContents() {
// read GIF file content blocks
boolean done = false;
while (!(done || err())) {
int code = read();
switch (code) {
case 0x2C: // image separator
readImage();
break;
case 0x21: // extension
code = read();
switch (code) {
case 0xf9: // graphics control extension
readGraphicControlExt();
break;
case 0xff: // application extension
readBlock();
String app = "";
for (int i = 0; i < 11; i++) {
app += (char) block[i];
}
if (app.equals("NETSCAPE2.0")) {
readNetscapeExt();
} else {
skip(); // don't care
}
break;
default: // uninteresting extension
skip();
}
break;
case 0x3b: // terminator
done = true;
break;
case 0x00: // bad byte, but keep going and see what happens
break;
default:
status = STATUS_FORMAT_ERROR;
}
}
}
private void readGraphicControlExt() {
read(); // block size
int packed = read(); // packed fields
dispose = (packed & 0x1c) >> 2; // disposal method
if (dispose == 0) {
dispose = 1; // elect to keep old image if discretionary
}
transparency = (packed & 1) != 0;
delay = readShort() * 10; // delay in milliseconds
transIndex = read(); // transparent color index
read(); // block terminator
}
private void readHeader() {
String id = "";
for (int i = 0; i < 6; i++) {
id += (char) read();
}
if (!id.startsWith("GIF")) {
status = STATUS_FORMAT_ERROR;
return;
}
readLSD();
if (gctFlag && !err()) {
gct = readColorTable(gctSize);
bgColor = gct[bgIndex];
}
}
private void readImage() {
ix = readShort(); // (sub)image position & size
iy = readShort();
iw = readShort();
ih = readShort();
int packed = read();
lctFlag = (packed & 0x80) != 0; // 1 - local color table flag
interlace = (packed & 0x40) != 0; // 2 - interlace flag
// 3 - sort flag
// 4-5 - reserved
lctSize = 2 << (packed & 7); // 6-8 - local color table size
if (lctFlag) {
lct = readColorTable(lctSize); // read table
act = lct; // make local table active
} else {
act = gct; // make global table active
if (bgIndex == transIndex) {
bgColor = 0;
}
}
int save = 0;
if (transparency) {
save = act[transIndex];
act[transIndex] = 0; // set transparent color if specified
}
if (act == null) {
status = STATUS_FORMAT_ERROR; // no color table defined
}
if (err()) {
return;
}
decodeImageData(); // decode pixel data
skip();
if (err()) {
return;
}
frameCount++;
// create new image to receive frame data
image = Bitmap.createBitmap(width, height, Config.ARGB_4444);
// createImage(width, height);
setPixels(); // transfer pixel data to image
if (gifFrame == null) {
gifFrame = new GifFrame(image, delay);
currentFrame = gifFrame;
} else {
GifFrame f = gifFrame;
while(f.nextFrame != null){
f = f.nextFrame;
}
f.nextFrame = new GifFrame(image, delay);
}
// frames.addElement(new GifFrame(image, delay)); // add image to frame
// list
if (transparency) {
act[transIndex] = save;
}
resetFrame();
action.parseOk(true, frameCount);
}
private void readLSD() {
// logical screen size
width = readShort();
height = readShort();
// packed fields
int packed = read();
gctFlag = (packed & 0x80) != 0; // 1 : global color table flag
// 2-4 : color resolution
// 5 : gct sort flag
gctSize = 2 << (packed & 7); // 6-8 : gct size
bgIndex = read(); // background color index
pixelAspect = read(); // pixel aspect ratio
}
private void readNetscapeExt() {
do {
readBlock();
if (block[0] == 1) {
// loop count sub-block
int b1 = ((int) block[1]) & 0xff;
int b2 = ((int) block[2]) & 0xff;
loopCount = (b2 << | b1;
}
} while ((blockSize > 0) && !err());
}
private int readShort() {
// read 16-bit value, LSB first
return read() | (read() << 8);
}
private void resetFrame() {
lastDispose = dispose;
lrx = ix;
lry = iy;
lrw = iw;
lrh = ih;
lastImage = image;
lastBgColor = bgColor;
dispose = 0;
transparency = false;
delay = 0;
lct = null;
}
/**
* Skips variable length blocks up to and including next zero length block.
*/
private void skip() {
do {
readBlock();
} while ((blockSize > 0) && !err());
}
/**************************************/
private String imagePath;
private boolean cacheImage;
public GifDecoderSeparate(GifAction paramGifAction)
{
byte[] arrayOfByte = new byte[256];
this.block = arrayOfByte;
this.blockSize = 0;
this.dispose = 0;
this.lastDispose = 0;
this.transparency = false;
this.delay = 0;
this.action = null;
this.gifData = null;
this.imagePath = null;
this.cacheImage = false;
this.action = paramGifAction;
}
private boolean createDir(String paramString){
File localFile;
boolean bool2;
try{
localFile = new File(paramString);
if (!(localFile.exists()))
{
boolean bool1 = localFile.mkdirs();
bool2 = bool1;
return bool2;
}
bool2 = true;
}catch (Exception localException){
bool2 = false;
}
return bool2;
}
public void setGifImage(InputStream paramInputStream)
{
this.in = paramInputStream;
}
public void setGifImage(byte[] paramArrayOfByte)
{
this.gifData = paramArrayOfByte;
}
}
DEMO下载：
GIF图片的合成、分解与简单处理GifMerge
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