android开发中imageview能显示gif动画吗

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不支持,如果要显式GIF,只能把gif分成一帧一帧的,然后用逐帧动画来操作 参考技术A Android默认是不支持gif格式图片的显示的本回答被提问者采纳

在android的ImageView中添加gif图像

【中文标题】在android的ImageView中添加gif图像【英文标题】:Adding gif image in an ImageView in android 【发布时间】:2011-09-25 21:51:52 【问题描述】:

我在 imageView 中添加了一个动画 gif 图像。我无法将其视为 gif 图像。没有动画。它以静止图像的形式出现。我想知道如何将其显示为 gif 图像。

【问题讨论】:

请检查下面的链接可能对你有帮助***.com/questions/3660209/…***.com/questions/3691726/… 使用这个链接它简单/易于使用和最好的。 http://abhinavasblog.blogspot.com/2014/04/animated-gif-imageview-library-for.html 如果您只想将 gif 图像添加到 imageview 中,而不是在 webview 中使用它对我来说很好***.com/a/29488519/3514144 这里是您问题的答案链接***.com/questions/35147375/… 【参考方案1】:

在您的 build.gradle(Module:app) 中,通过添加以下代码将 android-gif-drawable 添加为依赖项:

allprojects 
    repositories 
       mavenCentral()
    


dependencies 
    compile 'pl.droidsonroids.gif:android-gif-drawable:1.2.+'


更新:从Android Gradle Plugin 3.0.0开始,新的编译命令是implementation,所以上面的行可能需要修改为:
dependencies 
    implementation 'pl.droidsonroids.gif:android-gif-drawable:1.2.17'


然后同步您的项目。 同步结束后,转到您的布局文件并添加以下代码:

<pl.droidsonroids.gif.GifImageView
    android:layout_
    android:layout_
    android:src="@drawable/gif_file"
/>

就是这样,你可以用一个简单的 ImageView 来管理它。

【讨论】:

这个答案是最好的答案,它对我来说非常顺利,我尝试了不同的东西并建立了课程,在我发现这个之后令人难以置信......谢谢先生;) 平滑,比 gif 滑行更好 对我来说也是最好的,在 10 秒内实现 不应该改用pl.droidsonroids.gif.GifImageView吗? 我建议不要使用pl.droidsonroids.gif.GifImageView。在不断遇到该库中严重的安全问题和错误后,我们将其从我们的应用程序中删除。还有其他选择,请参阅其他答案。【参考方案2】:

首先,将您的 GIF 图片复制到您应用的资产文件夹中 创建以下类并粘贴代码 动画活动:-

public class AnimationActivity extends Activity 
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) 
    super.onCreate(savedInstanceState);

    InputStream stream = null;
    try 
        stream = getAssets().open("piggy.gif");
     catch (IOException e) 
        e.printStackTrace();
    
          GifWebView view = new GifWebView(this, "file:///android_asset    /piggy.gif");                 

    setContentView(view);


GifDecoder:-

public class GifDecoder 

    public static final int STATUS_OK = 0;

    public static final int STATUS_FORMAT_ERROR = 1;

    public static final int STATUS_OPEN_ERROR = 2;

    protected static final int MAX_STACK_SIZE = 4096;
    protected InputStream in;
    protected int status;
    protected int width; // full image width
    protected int height; // full image height
    protected boolean gctFlag; // global color table used
    protected int gctSize; // size of global color table
    protected int loopCount = 1; // iterations; 0 = repeat forever
    protected int[] gct; // global color table
    protected int[] lct; // local color table
    protected int[] act; // active color table
    protected int bgIndex; // background color index
    protected int bgColor; // background color
    protected int lastBgColor; // previous bg color
    protected int pixelAspect; // pixel aspect ratio
    protected boolean lctFlag; // local color table flag
    protected boolean interlace; // interlace flag
    protected int lctSize; // local color table size
    protected int ix, iy, iw, ih; // current image rectangle
    protected int lrx, lry, lrw, lrh;
    protected Bitmap image; // current frame
    protected Bitmap lastBitmap; // previous frame
    protected byte[] block = new byte[256]; // current data block
    protected int blockSize = 0; // block size last graphic control extension info
    protected int dispose = 0; // 0=no action; 1=leave in place; 2=restore to bg; 3=restore to prev
    protected int lastDispose = 0;
    protected boolean transparency = false; // use transparent color
    protected int delay = 0; // delay in milliseconds
    protected int transIndex; // transparent color index
    // LZW decoder working arrays
    protected short[] prefix;
    protected byte[] suffix;
    protected byte[] pixelStack;
    protected byte[] pixels;
    protected Vector<GifFrame> frames; // frames read from current file
    protected int frameCount;

    private static class GifFrame 
            public GifFrame(Bitmap im, int del) 
                    image = im;
                    delay = del;
            

            public Bitmap image;
            public int delay;
    


    public int getDelay(int n) 
            delay = -1;
            if ((n >= 0) && (n < frameCount)) 
                    delay = frames.elementAt(n).delay;
            
            return delay;
    


    public int getFrameCount() 
            return frameCount;
    


    public Bitmap getBitmap() 
            return getFrame(0);
    


    public int getLoopCount() 
            return loopCount;
    
    protected void setPixels() 

            int[] dest = new int[width * height];

            if (lastDispose > 0) 
                    if (lastDispose == 3) 
                            // use image before last
                            int n = frameCount - 2;
                            if (n > 0) 
                                    lastBitmap = getFrame(n - 1);
                             else 
                                    lastBitmap = null;
                            
                    
                    if (lastBitmap != null) 
                            lastBitmap.getPixels(dest, 0, width, 0, 0, width, height);
                            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;
                                            
                                    
                            
                    
            
            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;
                                            break;
                                    default:
                                            break;
                                    
                            
                            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);
    
    public Bitmap getFrame(int n) 
            if (frameCount <= 0)
                    return null;
            n = n % frameCount;
            return ((GifFrame) frames.elementAt(n)).image;
    
    public int read(InputStream is) 
            init();
            if (is != null) 
                    in = is;
                    readHeader();
                    if (!err()) 
                            readContents();
                            if (frameCount < 0) 
                                    status = STATUS_FORMAT_ERROR;
                            
                    
             else 
                    status = STATUS_OPEN_ERROR;
            
            try 
                    is.close();
             catch (Exception e) 
            
            return status;
          
    protected void decodeBitmapData() 
            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[MAX_STACK_SIZE];
            
            if (suffix == null) 
                    suffix = new byte[MAX_STACK_SIZE];
            
            if (pixelStack == null) 
                    pixelStack = new byte[MAX_STACK_SIZE + 1];
                            
            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; // XXX ArrayIndexOutOfBoundsException
                    suffix[code] = (byte) code;
                           
            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;
                                                           
                            code = datum & code_mask;
                            datum >>= code_size;
                            bits -= code_size;                               
                            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;
                            if (available >= MAX_STACK_SIZE) 
                                    break;
                            
                            pixelStack[top++] = (byte) first;
                            prefix[available] = (short) old_code;
                            suffix[available] = (byte) first;
                            available++;
                            if (((available & code_mask) == 0) && (available < MAX_STACK_SIZE)) 
                                    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
            
            
    protected boolean err() 
            return status != STATUS_OK;
           
    protected void init() 
            status = STATUS_OK;
            frameCount = 0;
            frames = new Vector<GifFrame>();
            gct = null;
            lct = null;
            
    protected int read() 
            int curByte = 0;
            try 
                    curByte = in.read();
             catch (Exception e) 
                    status = STATUS_FORMAT_ERROR;
            
            return curByte;
           
    protected 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;
            
    protected 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 << 8) | b;
                    
            
            return tab;
           
    protected void readContents() 
            // read GIF file content blocks
            boolean done = false;
            while (!(done || err())) 
                    int code = read();
                    switch (code) 
                    case 0x2C: // image separator
                            readBitmap();
                            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;
                            case 0xfe:// comment extension
                                    skip();
                                    break;
                            case 0x01:// plain text extension
                                    skip();
                                    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;
                    
            
          
    protected 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
           
    protected 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];
            
            
    protected void readBitmap() 
            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
            lctSize = (int) Math.pow(2, (packed & 0x07) + 1);
            interlace = (packed & 0x40) != 0;
            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;
            
            decodeBitmapData(); // decode pixel data
            skip();
            if (err()) 
                    return;
            
            frameCount++;
            // create new image to receive frame data
            image = Bitmap.createBitmap(width, height, Config.ARGB_4444);
            setPixels(); // transfer pixel data to image
            frames.addElement(new GifFrame(image, delay)); // add image to frame
            // list
            if (transparency) 
                    act[transIndex] = save;
            
            resetFrame();
    
    protected 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
           
    protected 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 << 8) | b1;
                    
             while ((blockSize > 0) && !err());
           
    protected int readShort() 
            // read 16-bit value, LSB first
            return read() | (read() << 8);
    
    protected void resetFrame() 
            lastDispose = dispose;
            lrx = ix;
            lry = iy;
            lrw = iw;
            lrh = ih;
            lastBitmap = image;
            lastBgColor = bgColor;
            dispose = 0;
            transparency = false;
            delay = 0;
            lct = null;
    
    protected void skip() 
            do 
                    readBlock();
             while ((blockSize > 0) && !err());
    

GifDecoderView:-

public class GifDecoderView extends ImageView 

private boolean mIsPlayingGif = false;

private GifDecoder mGifDecoder;

private Bitmap mTmpBitmap;

final Handler mHandler = new Handler();

final Runnable mUpdateResults = new Runnable() 
    public void run() 
        if (mTmpBitmap != null && !mTmpBitmap.isRecycled()) 
            GifDecoderView.this.setImageBitmap(mTmpBitmap);
        
    
;

public GifDecoderView(Context context, InputStream stream) 
    super(context);
    playGif(stream);


private void playGif(InputStream stream) 
    mGifDecoder = new GifDecoder();
    mGifDecoder.read(stream);

    mIsPlayingGif = true;

    new Thread(new Runnable() 
        public void run() 
            final int n = mGifDecoder.getFrameCount();
            final int ntimes = mGifDecoder.getLoopCount();
            int repetitionCounter = 0;
            do 
                for (int i = 0; i < n; i++) 
                    mTmpBitmap = mGifDecoder.getFrame(i);
                    int t = mGifDecoder.getDelay(i);
                    mHandler.post(mUpdateResults);
                    try 
                        Thread.sleep(t);
                     catch (InterruptedException e) 
                        e.printStackTrace();
                    
                
                if(ntimes != 0) 
                    repetitionCounter ++;
                
             while (mIsPlayingGif && (repetitionCounter <= ntimes));
        
    ).start();


public void stopRendering() 
    mIsPlayingGif = true;


GifMovieView:-

public class GifMovieView extends View 

private Movie mMovie;

private long mMoviestart;

public GifMovieView(Context context, InputStream stream) 
    super(context);

    mMovie = Movie.decodeStream(stream);        


@Override
protected void onDraw(Canvas canvas) 
    canvas.drawColor(Color.TRANSPARENT);
    super.onDraw(canvas);
    final long now = SystemClock.uptimeMillis();

    if (mMoviestart == 0)  
        mMoviestart = now;
    

    final int relTime = (int)((now - mMoviestart) % mMovie.duration());
    mMovie.setTime(relTime);
    mMovie.draw(canvas, 10, 10);
    this.invalidate();


GifWebView:-

public class GifWebView extends WebView 

public GifWebView(Context context, String path) 
    super(context);        

    loadUrl(path);


我认为它可能会对您有所帮助...:)

【讨论】:

基本上你不需要所有这些,因为你创建了解码器和复杂的代码并且从不使用它!您正在使用 GifWebView view = new GifWebView(this, "file:///android_asset /piggy.gif");它调用了一个没有自定义 webview 的 webview 子类,您可以用 3 行替换整个代码。 webView wView = new webView(this); wView.loadUrl("file:///android_asset/piggy.gif");设置内容视图(视图); 嘿,谢谢您的回答..:) 它工作得很好!但是我对 webview(在 GifWebView 类中)有一个问题,它显示的 gif 文件大于设备屏幕。那么如何为该视图提供自定义宽度和高度,否则我可以使用任何其他视图??? 这只会播放我的 gif 一次吗?它不会继续循环通过 gif 吗???无论如何我可以重新运行方法以再次显示它吗? 请帮我解决这个问题:***.com/questions/32996878/… 这适用于我在 4.4 上运行的设备,但是当我在 Lollipop 设备 (5.1) 上运行它时,Gif 不会动画。【参考方案3】:

在android中显示GIF文件

在您的 build.gradle 文件中添加以下依赖项。

implementation 'pl.droidsonroids.gif:android-gif-drawable:1.2.0'

在布局 - activity_xxxxx.xml 文件中添加 GifImageview 如下。

<pl.droidsonroids.gif.GifImageView
   android:id="@+id/CorrWrong"
   android:layout_
  android:layout_/>

在您的 Java 文件中,您可以访问以下 gif。

 GifImageView emoji;
 emoji = (GifImageView)findViewById(R.id.CorrWrong);

【讨论】:

【参考方案4】:

我遇到了使用问题

compile 'pl.droidsonroids.gif:android-gif-drawable:1.1.+'

而且我也找不到要添加到我的项目中的 jar 文件。 所以,为了显示 gif,我像这样使用 WebView:

WebView webView = (WebView) this.findViewById(R.id.webView);
webView.loadDataWithBaseURL(null, "<html><body><center><img style='align:center;width:250px; height:250px; border-radius:50%' src='file:///android_asset/loading.gif'/></center></body></html>", "text/html", "UTF-8", "");
webView.setBackgroundColor(Color.TRANSPARENT);

【讨论】:

【参考方案5】:

带有最新的Glide 库

使用 Gradle:

repositories 
  mavenCentral()
  google()


dependencies 
  implementation 'com.github.bumptech.glide:glide:4.8.0'
  annotationProcessor 'com.github.bumptech.glide:compiler:4.8.0'

在活动或片段中:

ImageView imageView = findViewById(R.id.imageView);

/* from internet*/
Glide.with(this)
        .load("https://media.giphy.com/media/98uBZTzlXMhkk/giphy.gif")
        .into(imageView);

/*from raw folder*/
Glide.with(this)
        .load(R.raw.giphy)
        .into(imageView);

【讨论】:

【参考方案6】:

作为@Ahmad said in a comment,你可以使用下面的代码来显示一个gif!

只需在 onCreate 方法中弹出此代码即可!另外,将您的 gif 文件放在 assets 文件夹中(如果您没有 assets 文件夹,请在 src/main 下创建一个)

WebView wView = new WebView(this);
wView.loadUrl("file:///android_asset/piggy.gif");
setContentView(view);

【讨论】:

【参考方案7】:

首先在module:appbuild.gradle文件中添加一个依赖

compile 'pl.droidsonroids.gif:android-gif-drawable:1.1.+'

然后,在布局文件中

<pl.droidsonroids.gif.GifImageView
        android:layout_
        android:layout_
        android:background="@drawable/mq_app"
        />

【讨论】:

【参考方案8】:

这对我有用:

在您的 build.gradle(项目)中,在 buildscript 和 allprojects 中编写 mavenCentral()。它应该是这样的:

buildscript 
    repositories 
        jcenter()
        **mavenCentral()**
    
//more code ...

allprojects 
    repositories 
        jcenter()
        **mavenCentral()**
    

然后,在 build.gradle(module) 中添加依赖项这个 sn-p:

编译'pl.droidsonroids.gif:android-gif-drawable:1.2.4'

应该是这样的:

dependencies 
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', 
        exclude group: 'com.android.support', module: 'support-annotations'
    )
    compile 'com.android.support:appcompat-v7:25.1.0'
    testCompile 'junit:junit:4.12'
    **compile 'pl.droidsonroids.gif:android-gif-drawable:1.2.4'**

将您的 .gif 图像放入您的可绘制文件夹中。 现在转到 app > res > layout > activity_main.xml 并为您的 .gif 添加此片段:

<pl.droidsonroids.gif.GifImageView
    android:layout_
    android:layout_
    android:src="@drawable/YOUR_GIF_IMAGE"
    android:background="#000000" //for black background
    />

你已经完成了:)

有用的链接: https://github.com/koral--/android-gif-drawable

https://www.youtube.com/watch?v=EOFY0cwNjuk

希望这会有所帮助。

【讨论】:

【参考方案9】:

基于Ahmad Dwaik 'Warlock's comment,我尝试了以下代码并且它有效。

    在您的 xml 文件中使用 webview,并将其位置调整到您想要显示 .gif 图像的位置。 在您的活动中,像其他视图一样初始化这一小块 web 视图。 将 .gif 图片放在 assets 文件夹中 现在加载图像,就像您将 url 加载到 webview 中一样“diyaWebView1.loadUrl("file:///android_asset/www/diya.gif");" 您可以在启动应用程序时看到您的 .gif 图像。

P.S:如果您的 .gif 图像适合您的 webview,则此方法有效,反之亦然,如果图像大于 webview,则启用滚动条并且用户可以滚动图像 AKA webview。所以我们在使用它时需要小心,根据图像为 webview 提供适当的大小或编辑适合您 webview 的图像。

【讨论】:

【参考方案10】:

使用 Webview 像 as 一样加载 gif

webView = (WebView) findViewById(R.id.webView);
webView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
webView.getSettings().setLoadsImagesAutomatically(true);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("file:///android_asset/1.gif");

【讨论】:

请记住图像名称区分大小写。我的以 GIF 结尾,当我打电话给image.gif 时它不起作用【参考方案11】:

我建议你使用 Glide 库。要使用 Glide,你需要添加这个来添加这些依赖项

compile 'com.github.bumptech.glide:glide:3.7.0'
compile 'com.android.support:support-v4:23.4.0'

到您的 Grandle (Module:app) 文件。

然后用这行代码来加载你的gif图片

Glide.with(context).load(R.drawable.loading).asGif().diskCacheStrategy(DiskCacheStrategy.SOURCE).crossFade().into(loadingImageView);

More Information on Glide

【讨论】:

【参考方案12】:
import android.app.Activity;
import android.util.Log;
import android.widget.ImageView;

/**
 * Created by atiq.mumtaz on 25.04.2016.
 */
public class GifImage_Player extends Thread

    Activity activity;
    ImageView image_view;
    boolean is_running=false;
    int pause_time;
    int[] drawables;

    public GifImage_Player(Activity activity,ImageView img_view,int[] drawable)
    
        this.activity=activity;
        this.image_view=img_view;
        this.is_running=true;
        pause_time=25;
        this.drawables=drawable;
    

    public void set_pause_time(int interval)
    
        this.pause_time=interval;
    
    public void stop_playing()
    
        this.is_running=false;
    

    public void run()
    
        Log.d("Gif Player","Gif Player Stopped");

        int pointer=0;
        while (this.is_running)
        
           if(drawables.length>0)
           
             if((drawables.length-1)==pointer)
             
                 pointer=0;
             


               try
               
                   activity.runOnUiThread(new Run(pointer));
                   Thread.sleep(pause_time);
               
               catch (Exception e)
               
                   Log.d("GifPlayer","Exception: "+e.getMessage());
                   is_running=false;
               
               pointer++;
           
        
        Log.d("Gif Player","Gif Player Stopped");
    

    class Run implements Runnable
    
        int pointer;
        public Run(int pointer)
        
            this.pointer=pointer;
        
        public void run()
       
           image_view.setImageResource(drawables[pointer]);
       
    


/////////////////////////////Usage///////////////////////////////////////




  int[] int_array=new int[]R.drawable.tmp_0,R.drawable.tmp_1,R.drawable.tmp_2,R.drawable.tmp_3
               ,R.drawable.tmp_4,R.drawable.tmp_5,R.drawable.tmp_6,R.drawable.tmp_7,R.drawable.tmp_8,R.drawable.tmp_9,
                    R.drawable.tmp_10,R.drawable.tmp_11,R.drawable.tmp_12,R.drawable.tmp_13,R.drawable.tmp_14,R.drawable.tmp_15,
                    R.drawable.tmp_16,R.drawable.tmp_17,R.drawable.tmp_18,R.drawable.tmp_19,R.drawable.tmp_20,R.drawable.tmp_21,R.drawable.tmp_22,R.drawable.tmp_23;

GifImage_Player gif_player;             
gif_player=new GifImage_Player(this,(ImageView)findViewById(R.id.mygif),int_array);
            gif_player.start();

【讨论】:

【参考方案13】:

您可以通过库Fresco by Facebook显示任何gif图像:

Uri uri = Uri.parse("http://domain.com/awersome.gif");
final SimpleDraweeView draweeView = new SimpleDraweeView(context);
final LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(200, 200);

draweeView.setLayoutParams(params);
DraweeController controller = Fresco.newDraweeControllerBuilder()
        .setUri(uri)
        .setAutoPlayAnimations(true)
        .build();
draweeView.setController(controller);
//now just add draweeView to layout and enjoy

【讨论】:

【参考方案14】:

Gif 也可以在 Web 视图中显示,只需几行代码,无需任何 3rd 方库。 这样您甚至可以从 SD 卡加载 gif。无需将图像复制到您的资产文件夹。

浏览网页。

<WebView
    android:layout_
    android:layout_
    android:id="@+id/imageWebView" />

使用可以从 SD 卡打开 gif 文件,而不仅仅是从资产文件夹中打开,如许多示例所示。

    WebView webView = (WebView) findViewById(R.id.imageWebView);
    String  data    = "<body> <img src = \""+ filePath+"\"/></body>";
    // 'filePath' is the path of your .GIF file on SD card.
   webView.loadDataWithBaseURL("file:///android_asset/",data,"text/html","UTF-8",null);

【讨论】:

【参考方案15】:

在 Android 中显示 GIF

创建CustomGifView.java which extends View Class

 public class CustomGifView extends View 

 private InputStream gifInputStream;
 private Movie gifMovie;
 private int movieWidth, movieHeight;
 private long movieDuration;
 private long mMovieStart;

 public CustomGifView(Context context) 
  super(context);
  init(context);
 

 public CustomGifView(Context context, AttributeSet attrs) 
  super(context, attrs);
  init(context);
 

 public CustomGifView(Context context, AttributeSet attrs, 
   int defStyleAttr) 
  super(context, attrs, defStyleAttr);
  init(context);
 

 private void init(Context context)
  setFocusable(true);
  gifInputStream = context.getResources()
    .openRawResource(R.drawable.YOUR_IMAGE);

  gifMovie = Movie.decodeStream(gifInputStream);
  movieWidth = gifMovie.width();
  movieHeight = gifMovie.height();
  movieDuration = gifMovie.duration();
 

 @Override
 protected void onMeasure(int widthMeasureSpec, 
   int heightMeasureSpec) 
  setMeasuredDimension(movieWidth, movieHeight);
 

 public int getMovieWidth()
  return movieWidth;
 

 public int getMovieHeight()
  return movieHeight;
 

 public long getMovieDuration()
  return movieDuration;
 

 @Override
 protected void onDraw(Canvas canvas) 

  long now = android.os.SystemClock.uptimeMillis();
        if (mMovieStart == 0)    // first time
            mMovieStart = now;
        

        if (gifMovie != null) 

            int dur = gifMovie.duration();
            if (dur == 0) 
                dur = 1000;
            

            int relTime = (int)((now - mMovieStart) % dur);

            gifMovie.setTime(relTime);

            gifMovie.draw(canvas, 0, 0);
            invalidate();

        

 

 

现在在你的 XML 中调用这个类

 <Your_PackageName.CustomGifView
        android:id="@+id/gifview"
        android:layout_
        android:layout_ />

N.P

修改 AndroidManifest.xml 以关闭 hardwareAccelerated。

 android:hardwareAccelerated="false"

Reference

Another Tricks

有关动画功能,您可以访问

http://developer.android.com/reference/android/graphics/drawable/AnimationDrawable.html

【讨论】:

运行良好!您知道实现此功能的最低 API 级别吗? @KhanSquare 可能是 15 @Lakhan 在这里工作正常。好的,我会再检查一次 根据我在下面给出的 kimmi dhingra 的回答 if (Build.VERSION.SDK_INT >= 11) gifImageView.setLayerType(View.LAYER_TYPE_SOFTWARE, null); @IntelliJAmiya 是的,这也会帮助其他人【参考方案16】:

我们可以使用 Ion 库在 imageview 上轻松添加动画 gif 图像。

教程视频::https://www.youtube.com/watch?v=IqKtpdeIpjA

ImageView image = (ImageView)findViewById(R.id.image_gif);
Ion.with(image).load("http://mygifimage.gif");

【讨论】:

【参考方案17】:

GIFImageView

public class GifImageView extends ImageView 

    Movie movie;
    InputStream inputStream;
    private long mMovieStart;

    public GifImageView(Context context, AttributeSet attrs, int defStyleAttr) 
        super(context, attrs, defStyleAttr);
    

    public GifImageView(Context context) 
        super(context);
    

    public GifImageView(Context context, AttributeSet attrs) 
        super(context, attrs);
        setFocusable(true);
        inputStream = context.getResources()
                .openRawResource(R.drawable.thunder);
            byte[] array = streamToBytes(inputStream);
            movie = Movie.decodeByteArray(array, 0, array.length);

    

    private byte[] streamToBytes(InputStream is) 
        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(
                1024);
        byte[] buffer = new byte[1024];
        int len;
        try 
            while ((len = is.read(buffer)) >= 0) 
                byteArrayOutputStream.write(buffer, 0, len);
                return byteArrayOutputStream.toByteArray();
            
         catch (Exception e) 
            e.printStackTrace();
            return null;
        
        return null;
    

    @Override
    protected void onDraw(Canvas canvas) 
        super.onDraw(canvas);
        long now = SystemClock.uptimeMillis();
        if (mMovieStart == 0)  // first time
            mMovieStart = now;
        
        if (movie != null) 
            int dur = movie.duration();
            if (dur == 0) 
                dur = 3000;
            
            int relTime = (int) ((now - mMovieStart) % dur);
            movie.setTime(relTime);
            movie.draw(canvas, getWidth() - 200, getHeight() - 200);
            invalidate();
        
    


在 XML 中

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/container"
    android:layout_
    android:layout_ >

    <TextView
        android:id="@+id/update"
        android:layout_
        android:layout_
        android:layout_alignParentTop="true"
        android:text="abc" /> 

    <com.example.apptracker.GifImageView
        android:id="@+id/gifImageView1"
        android:layout_
        android:layout_
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true" />

</RelativeLayout>

在 Java 文件中

public class MainActivity extends Activity 
@Override
    protected void onCreate(Bundle savedInstanceState) 
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main); 
        GifImageView gifImageView = (GifImageView) findViewById(R.id.gifImageView1);
        if (Build.VERSION.SDK_INT >= 11) 
            gifImageView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
        
    

我们需要使用gifImageView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);,因为当启用硬件加速时,GIF 图像无法在这些设备上运行。在以上(4.x)的设备上启用了硬件加速。

【讨论】:

这并没有显示任何东西。可以分享到 Github 上吗?【参考方案18】:

使用 VideoView。

ImageView 本身不支持动画图像。您有两个选项来显示动画 gif 文件

    使用VideoView 使用ImageView 将gif文件拆分成几个部分,然后对其应用动画

【讨论】:

我如何使用 VideoView。我可以在那个 VideoView 中显示特定的 gif 图像吗 如何使用 VideoView?如果我将路径设置为 Gif,它将无法正常工作。 我也没有明白VideoView 怎么可以用来显示动画GIF? 忘记 gif 并使用视频制作动画。我想就是这样。不确定这是不是问题的答案。 @Sunil Kumar Sahoo 你没有回复任何用户的评论!

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