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Android中播放GIF图片动画

来源：互联网作者：佚名时间：2015-06-03 08:51

引言在Android中默认情况下是不允许播放GIF图片动画的这时需要自己实现来播放GIF动画在网上搜索了一个可用的实现贴出来与大家共享功能实现 ( ) 主Activity实现 package com focus fishme; import android app Activity; import android os Bundle; pub

　　引言

　　在Android中默认情况下是不允许播放GIF图片动画的这时需要自己实现来播放GIF动画在网上搜索了一个可用的实现贴出来与大家共享

　　功能实现

　　() 主Activity实现

package comfocusfishme;
import androidappActivity;
import androidosBundle;
publicclass GIFPlayerActivity extends Activity {

@Override
publicvoid onCreate(Bundle savedInstanceState) {
superonCreate(savedInstanceState);

        GameView gameView = new GameView(this);

        setContentView(gameView);
    }

}

　　() GIF图片动画View

package comfocusfishme;
import javaioByteArrayOutputStream;
import javaioIOException;
import javaioInputStream;
import ntentContext;
import androidgraphicsBitmap;
import androidgraphicsCanvas;
import androidgraphicsPaint;
import androidviewView;
publicclass GameView extends View implements Runnable {
private GIFFrameManager mGIFFrameManager = null;
private Paint mPaint = null;
public GameView(Context context) {
super(context);
        mGIFFrameManager = GIFFrameManagerCreateGifImage(thisfileConnect(this
                getResources()openRawResource(Rdrawablecat)));
new Thread(this)start();
    }
protectedvoid onDraw(Canvas canvas) {
superonDraw(canvas);
        mPaint = new Paint();
        mGIFFrameManagernextFrame();
        Bitmap bitmap = mGIFFrameManagergetImage();
if (bitmap != null) {
            canvasdrawBitmap(bitmap   mPaint);
        }
    }
publicbyte[] fileConnect(InputStream in) {
        ByteArrayOutputStream out = new ByteArrayOutputStream();
int ch = ;
try {
while ((ch = inread()) != ) {
                outwrite(ch);
            }
byte[] b = outtoByteArray();
            outclose();
            out = null;
            inclose();
            in = null;
return b;
        } catch (IOException e) {
            eprintStackTrace();
returnnull;
        }
    }
publicvoid run() {
while (!Threadinterrupted()) {
try {
                Threadsleep();
thispostInvalidate();
            } catch (Exception ex) {
                exprintStackTrace();
                ThreadcurrentThread()interrupt();
            }
        }
    }
}

　　() GIF图片动画播放管理器

package comfocusfishme;
import javautilVector;
import androidgraphicsBitmap;
publicclass GIFFrameManager {

private Vector<Bitmap> frames;
privateint index;
public GIFFrameManager() {
        frames = new Vector<Bitmap>();
        index = ;
    }
publicvoid addImage(Bitmap image) {
        framesaddElement(image);
    }
publicint size() {
return framessize();
    }
public Bitmap getImage() {
if (size() == ) {
returnnull;
        } else {
return (Bitmap) frameselementAt(index);
        }
    }
publicvoid nextFrame() {
if (index +  < size()) {
            index++;
        } else {
            index = ;
        }
    }
publicstatic GIFFrameManager CreateGifImage(byte bytes[]) {
try {
            GIFFrameManager GF = new GIFFrameManager();
            Bitmap image = null;
            GIFEncoder gifdecoder = new GIFEncoder(bytes);
for (; gifdecodermoreFrames(); gifdecodernextFrame()) {
try {
                    image = gifdecoderdecodeImage();
if (GF != null && image != null) {
                        GFaddImage(image);
                    }
continue;
                } catch (Exception e) {
                    eprintStackTrace();
                }
break;
            }
            gifdecoderclear();
            gifdecoder = null;
return GF;
        } catch (Exception e) {
            eprintStackTrace();
returnnull;
        }
    }
}

　　() GIF图片动画编码

package comfocusfishme;
import androidgraphicsBitmap;
import androidgraphicsBitmapConfig;
publicclass GIFEncoder {
privateint E;
privateint E[];
privateint E;
privateint E;
privateboolean E;
privateint E[];
privateint width;
privateint height;
privateint ED;
privateboolean EE;
privateboolean EF;
privateint F[];
privateint F;
privateboolean F;
privateint F;
privatelong F;
privateint F;
privatestaticfinalint F[] = {     };
privatestaticfinalint F[] = {     };
int curFrame;
int poolsize;
int FA;
byte C[];
int FB;
int FC;
int FD;
public GIFEncoder(byte abyte[]) {
        E = ;
        E = newint[];
        E = ;
        E = ;
        E = false;
        E = null;
        width = ;
        height = ;
        ED = ;
        EE = false;
        EF = false;
        F = null;
        F = ;
        F = ;
        curFrame = ;
        C = abyte;
        poolsize = Clength;
        FA = ;
    }
publicboolean moreFrames() {
return poolsize  FA >= ;
    }
publicvoid nextFrame() {
        curFrame++;
    }
public Bitmap decodeImage() {
return decodeImage(curFrame);
    }
public Bitmap decodeImage(int i) {
if (i <= E) {
returnnull;
        }
if (E < ) {
if (!E()) {
returnnull;
            }
if (!E()) {
returnnull;
            }
        }
do {
if (!E()) {
returnnull;
            }
int j = E[];
if (j == ) {
returnnull;
            }
if (j == ) {
if (!E()) {
returnnull;
                }
            } elseif (j == ) {
if (!E()) {
returnnull;
                }
                Bitmap image = createImage();
                E++;
if (E < i) {
                    image = null;
                } else {
return image;
                }
            }
        } while (true);
    }
publicvoid clear() {
        C = null;
        E = null;
        E = null;
        F = null;
    }
private Bitmap createImage() {
int i = width;
int j = height;
int j = ;
int k = ;
int ai[] = newint[];
int ai[] = newint[];
int ai[] = newint[];
if (!E()) {
returnnull;
        }
int k = E[];
int[] image = newint[width * height];
int ai[] = E;
if (EE) {
            ai = F;
        }
if (E >= ) {
            ai[E] = xffffff;
        }
int l =  << k;
int j = l + ;
int k = k + ;
int l = l + ;
int k = ;
int j = ;
for (int l = ; l < l; l++) {
            ai[l] = l;
        }
int j = ;
        E();
        j = ;
        label: for (int i = ; i < j; i++) {
int i = ;
do {
if (i >= i) {
break;
                }
if (j == ) {
int i = E(k);
if (i < ) {
return BitmapcreateBitmap(image width height
                                ConfigRGB_);
                    }
if (i > l || i == j) {
return BitmapcreateBitmap(image width height
                                ConfigRGB_);
                    }
if (i == l) {
                        k = k + ;
                        l = l + ;
                        k = ;
continue;
                    }
if (k == ) {
                        ai[j++] = ai[i];
                        k = i;
                        j = i;
continue;
                    }
int i = i;
if (i == l) {
                        ai[j++] = j;
                        i = k;
                    }
for (; i > l; i = ai[i]) {
                        ai[j++] = ai[i];
                    }
                    j = ai[i];
if (l >= ) {
return BitmapcreateBitmap(image width height
                                ConfigRGB_);
                    }
                    ai[j++] = j;
                    ai[l] = k;
                    ai[l] = j;
if (++l >=  << k && l < ) {
                        k++;
                    }
                    k = i;
                }
int l = ai[j];
if (l < ) {
return BitmapcreateBitmap(image width height
                            ConfigRGB_);
                }
if (i == ) {
                    FC = ;
                    FB = ai[l];
                    FD = ;
                } elseif (FB != ai[l]) {
for (int mm = FD; mm <= FD + FC; mm++) {
                        image[j * width + mm] = FB;
                    }
                    FC = ;
                    FB = ai[l];
                    FD = i;
if (i == i  ) {
                        image[j * width + i] = ai[l];
                    }
                } else {
                    FC++;
if (i == i  ) {
for (int mm = FD; mm <= FD + FC; mm++) {
                            image[j * width + mm] = FB;
                        }
                    }
                }
                i++;
            } while (true);
if (EF) {
                j += F[k];
do {
if (j < j) {
continue label;
                    }
if (++k > ) {
return BitmapcreateBitmap(image width height
                                ConfigRGB_);
                    }
                    j = F[k];
                } while (true);
            }
            j++;
        }
return BitmapcreateBitmap(image width height ConfigRGB_);
    }
privateint E(int i) {
while (F < i) {
if (F) {
return ;
            }
if (F == ) {
                F = E();
                F = ;
if (F <= ) {
                    F = true;
break;
                }
            }
            F += E[F] << F;
            F++;
            F += ;
            F;
        }
int j = (int) F & ( << i)  ;
        F >>= i;
        F = i;
return j;
    }
privatevoid E() {
        F = ;
        F = ;
        F = L;
        F = false;
        F = ;
    }
privateboolean E() {
if (!E(

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Android中播放GIF图片动画

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