我的gif图像显示在模拟器中但在我的智能手机中丢失了

在我的应用程序中我显示一些gif图像，它们在模拟器中完美运行但是当我在我的智能手机中安装apk文件时，应用程序正常工作，但gif图像不显示，任何解释为什么??

这是我的gif显示视图的代码

import android.content.Context; import java.io.InputStream; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Movie; import android.os.SystemClock; import android.view.View; public class GifWebView extends View { private Movie mMovie; InputStream mStream; long mMoviestart; public GifWebView(Context context, InputStream stream) { super(context); mStream = stream; mMovie = Movie.decodeStream(mStream); } @Override protected void onDraw(Canvas canvas) { canvas.drawColor(Color.TRANSPARENT); super.onDraw(canvas); final long now = SystemClock.uptimeMillis(); if (mMoviestart == 0) { mMoviestart = now; } int gif_image_duration = mMovie.duration(); if(gif_image_duration==0) { gif_image_duration = 1; } final int relTime = (int) ((now - mMoviestart) % gif_image_duration); mMovie.setTime(relTime); mMovie.draw(canvas, 10, 10); this.invalidate(); } } 

在我的活动中，我打电话

 GifWebView gif_view;// as global var 

并在我的创建方法

  gif_linear_layout = (LinearLayout)findViewById(R.id.gif_linear_layout); InputStream stream = null; try { stream = getAssets().open(gif_name); //stream = getAssets().open("gif_images").; } catch (IOException e) { e.printStackTrace(); } gif_view = new GifWebView(this, stream); gif_linear_layout.addView(gif_view); 

这就是第1部分的样子：在模拟器第2部分：在我的智能电话上

Answer 1

我面临同样的问题。 如果您确信您的代码没问题，那么只需在您的此活动清单中添加android:hardwareAccelerated="false" 。 希望它能解决你的问题。

Answer 2

这跟我的魅力一样：

GifView.java

 package com.example.demo; import android.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.util.AttributeSet; import android.view.View; import android.widget.LinearLayout.LayoutParams; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.InputStream; public class GifView extends View { public static final int IMAGE_TYPE_UNKNOWN = 0; public static final int IMAGE_TYPE_STATIC = 1; public static final int IMAGE_TYPE_DYNAMIC = 2; public static final int DECODE_STATUS_UNDECODE = 0; public static final int DECODE_STATUS_DECODING = 1; public static final int DECODE_STATUS_DECODED = 2; private GifDecoder decoder; private Bitmap bitmap; public int imageType = IMAGE_TYPE_UNKNOWN; public int decodeStatus = DECODE_STATUS_UNDECODE; private int width; private int height; private long time; private int index; private int resId; private String filePath; private boolean playFlag = false; int gifImageResourceID; public GifView(Context context, AttributeSet attrs) { super(context, attrs); String namespace = "http://schemas.android.com/apk/res/" + context.getPackageName(); gifImageResourceID = attrs.getAttributeResourceValue(namespace, "gif_image", 0); if (gifImageResourceID != 0) { setGifImageResourceID(gifImageResourceID); } } /** * Constructor */ public GifView(Context context) { super(context); } private InputStream getInputStream() { if (filePath != null) try { return new FileInputStream(filePath); } catch (FileNotFoundException e) { } if (resId > 0) return getContext().getResources().openRawResource(resId); return null; } /** * set gif file path * * @param filePath */ public void setGif(String filePath) { Bitmap bitmap = BitmapFactory.decodeFile(filePath); setGif(filePath, bitmap); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { super.onMeasure(widthMeasureSpec, heightMeasureSpec); if (bitmap != null) { setMeasuredDimension(MeasureSpec.getSize(bitmap.getWidth()), MeasureSpec.getSize(bitmap.getHeight())); } } /** * set gif file path and cache image * * @param filePath * @param cacheImage */ public void setGif(String filePath, Bitmap cacheImage) { this.resId = 0; this.filePath = filePath; imageType = IMAGE_TYPE_UNKNOWN; decodeStatus = DECODE_STATUS_UNDECODE; playFlag = false; bitmap = cacheImage; width = bitmap.getWidth(); height = bitmap.getHeight(); android.view.ViewGroup.LayoutParams params = getLayoutParams(); params.width = width; params.height = height; setLayoutParams(params); play(); } /** * set gif resource id * * @param resId */ public void setGifImageResourceID(int resId) { Bitmap bitmap = BitmapFactory.decodeResource(getResources(), resId); setGif(resId, bitmap); } /** * set gif resource id and cache image * * @param resId * @param cacheImage */ public void setGif(int resId, Bitmap cacheImage) { this.filePath = null; this.resId = resId; imageType = IMAGE_TYPE_UNKNOWN; decodeStatus = DECODE_STATUS_UNDECODE; playFlag = false; bitmap = cacheImage; width = bitmap.getWidth(); height = bitmap.getHeight(); setLayoutParams(new LayoutParams(width, height)); play(); } private void decode() { release(); index = 0; decodeStatus = DECODE_STATUS_DECODING; new Thread() { @Override public void run() { decoder = new GifDecoder(); decoder.read(getInputStream()); if (decoder.width == 0 || decoder.height == 0) { imageType = IMAGE_TYPE_STATIC; } else { imageType = IMAGE_TYPE_DYNAMIC; } postInvalidate(); time = System.currentTimeMillis(); decodeStatus = DECODE_STATUS_DECODED; } }.start(); } public void release() { decoder = null; } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); if (decodeStatus == DECODE_STATUS_UNDECODE) { canvas.drawBitmap(bitmap, (getWidth()-width)/2, (getHeight()-height)/2, null); if (playFlag) { decode(); invalidate(); } } else if (decodeStatus == DECODE_STATUS_DECODING) { canvas.drawBitmap(bitmap, (getWidth()-width)/2, (getHeight()-height)/2, null); invalidate(); } else if (decodeStatus == DECODE_STATUS_DECODED) { if (imageType == IMAGE_TYPE_STATIC) { canvas.drawBitmap(bitmap, (getWidth()-width)/2, (getHeight()-height)/2, null); } else if (imageType == IMAGE_TYPE_DYNAMIC) { if (playFlag) { long now = System.currentTimeMillis(); if (time + decoder.getDelay(index) < now) { time += decoder.getDelay(index); incrementFrameIndex(); } Bitmap bitmap = decoder.getFrame(index); if (bitmap != null) { canvas.drawBitmap(bitmap, (getWidth()-width)/2, (getHeight()-height)/2, null); } invalidate(); } else { Bitmap bitmap = decoder.getFrame(index); canvas.drawBitmap(bitmap, (getWidth()-width)/2, (getHeight()-height)/2, null); } } else { canvas.drawBitmap(bitmap, (getWidth()-width)/2, (getHeight()-height)/2, null); } } } private void incrementFrameIndex() { index++; if (index >= decoder.getFrameCount()) { index = 0; } } private void decrementFrameIndex() { index--; if (index < 0) { index = decoder.getFrameCount() - 1; } } public void play() { time = System.currentTimeMillis(); playFlag = true; invalidate(); } public void pause() { playFlag = false; invalidate(); } public void stop() { playFlag = false; index = 0; invalidate(); } public void nextFrame() { if (decodeStatus == DECODE_STATUS_DECODED) { incrementFrameIndex(); invalidate(); } } public void prevFrame() { if (decodeStatus == DECODE_STATUS_DECODED) { decrementFrameIndex(); invalidate(); } } } 

GifDecoder.java

 package com.example.demo; import java.io.InputStream; import java.util.Vector; import android.graphics.Bitmap; import android.graphics.Bitmap.Config; public class GifDecoder { /** * File read status: No errors. */ public static final int STATUS_OK = 0; /** * File read status: Error decoding file (may be partially decoded) */ public static final int STATUS_FORMAT_ERROR = 1; /** * File read status: Unable to open source. */ public static final int STATUS_OPEN_ERROR = 2; /** max decoder pixel stack size */ 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 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; } /** * Gets display duration for specified frame. * * @param n * int index of frame * @return delay in milliseconds */ public int getDelay(int n) { delay = -1; if ((n >= 0) && (n < frameCount)) { delay = frames.elementAt(n).delay; } return delay; } /** * Gets the number of frames read from file. * * @return frame count */ public int getFrameCount() { return frameCount; } /** * Gets the first (or only) image read. * * @return BufferedBitmap containing first frame, or null if none. */ public Bitmap getBitmap() { return getFrame(0); } /** * Gets the "Netscape" iteration count, if any. A count of 0 means repeat indefinitiely. * * @return iteration count if one was specified, else 1. */ public int getLoopCount() { return loopCount; } /** * Creates new frame image from current data (and previous frames as specified by their disposition codes). */ protected void setPixels() { // expose destination image's pixels as int array 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) { lastBitmap = getFrame(n - 1); } else { lastBitmap = null; } } if (lastBitmap != null) { lastBitmap.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; 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); } /** * Gets the image contents of frame n. * * @return BufferedBitmap representation of frame, or null if n is invalid. */ public Bitmap getFrame(int n) { if (frameCount <= 0) return null; n = n % frameCount; return ((GifFrame) frames.elementAt(n)).image; } /** * Reads GIF image from stream * * @param is * containing GIF file. * @return read status code (0 = no errors) */ 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; } /** * Decodes LZW image data into pixel array. Adapted from John Cristy's BitmapMagick. */ 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]; } // 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; // XXX ArrayIndexOutOfBoundsException 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 >= 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 } } /** * Returns true if an error was encountered during reading/decoding */ protected boolean err() { return status != STATUS_OK; } /** * Initializes or re-initializes reader */ protected void init() { status = STATUS_OK; frameCount = 0; frames = new Vector(); gct = null; lct = null; } /** * Reads a single byte from the input stream. */ protected int read() { int curByte = 0; try { curByte = in.read(); } catch (Exception e) { status = STATUS_FORMAT_ERROR; } return curByte; } /** * Reads next variable length block from input. * * @return number of bytes stored in "buffer" */ 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; } /** * Reads color table as 256 RGB integer values * * @param ncolors * int number of colors to read * @return int array containing 256 colors (packed ARGB with full alpha) */ 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; } /** * Main file parser. Reads GIF content blocks. */ 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; } } } /** * Reads Graphics Control Extension values */ 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 } /** * Reads GIF file header information. */ 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]; } } /** * Reads next frame image */ 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); // 3 - sort flag // 4-5 - reserved lctSize = 2 << (packed & 7); // 6-8 - local color // table size 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(); } /** * Reads Logical Screen Descriptor */ 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 } /** * Reads Netscape extenstion to obtain iteration count */ 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()); } /** * Reads next 16-bit value, LSB first */ protected int readShort() { // read 16-bit value, LSB first return read() | (read() << 8); } /** * Resets frame state for reading next image. */ 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; } /** * Skips variable length blocks up to and including next zero length block. */ protected void skip() { do { readBlock(); } while ((blockSize > 0) && !err()); } } 

如何使用？

将您的所有图像放在res / drawable文件夹而不是资产文件夹中。

  gif_view = new GifWebView(this); gif_view.setGifImageResourceID(R.drawable.apple); gif_linear_layout.addView(gif_view); 

Answer 3

它不会解决您的问题，但可能会给出一个提示：

 if(stream != null){ gif_view = new GifWebView(this, stream); } else{ Log.d("tag", "can't load gif image from assets"); } 

Answer 4

您的智能手机可能未在手机上显示的模拟器窗口尺寸差异。

 mMovie.draw(canvas, 10, 10); // change dimension value and find correct one. 

Answer 5

从截图中看，你的模拟器和手机看起来都在Android 4+上，但是你的手机上的框架仍然有可能错过了我在回答另一篇文章时提到的重要提交。 也许您可以使用Android 2.3.3（API10）在模拟器上测试您的应用程序，看它是否与手机上的行为相同？

至于更可靠的解决方案，也许您可​​以尝试链接post中的库或评论中建议的其他方法。

Answer 6

Android本身并不显示动画GIF。 但是，您可以使用此链接中所述的android.graphics.Movie类。

简要说明，该function在SDK参考中有轻微讨论，但在BitmapDecode中的ApiDemos中的示例中使用。

希望能帮助到你！

Answer 7

将图像放在drawable文件夹中然后检查你的信息android不支持gif动画它只会显示一帧

Answer 8

有一个类似的问题，只是几分钟前的观点。 那是一个图片大小的问题。

Answer 9

愚蠢的问题，但是设备上的照片？ 我知道他们应该在apk中，但你永远不会知道。 Ddms有一个文件浏览器，您可能需要进行设置打开它们应该在数据/数据中，但可能是数据SD卡或某些供应商特定位置，但您会在某处找到您的项目文件夹

Answer 10

  @Override protected void onDraw(Canvas canvas) { canvas.drawColor(Color.TRANSPARENT); super.onDraw(canvas); final long now = SystemClock.uptimeMillis(); if (mMoviestart == 0) { mMoviestart = now; } int gif_image_duration = mMovie.duration(); if(gif_image_duration==0) { gif_image_duration = 1; } final int relTime = (int) ((now - mMoviestart) % gif_image_duration); mMovie.setTime(relTime); mMovie.draw(canvas, 10, 10); this.invalidate(); } 

检查这个方法所有的bug都在这个方法中，这对canvas.drawColor(Color.TRANSPARENT);是什么？ 你也是在super.onDraw(canvas);之前调用它super.onDraw(canvas); 并删除此this.invalidate(); 并检查

您可以使用此方法从assest文件夹加载图像

 private Bitmap getBitmapFromAsset(String strName) { AssetManager assetManager = getAssets(); InputStream istr = null; try { istr = assetManager.open(strName); } catch (IOException e) { e.printStackTrace(); } Bitmap bitmap = BitmapFactory.decodeStream(istr); return bitmap; } 

检查这些链接：

http://androidosbeginning.blogspot.in/2010/09/gif-animation-in-android.html

为什么.gif动画图片在我的Android应用中没有动画效果？

http://droid-blog.net/2011/10/14/tutorial-how-to-use-animated-gifs-in-android-part-1/

Answer 11

这就是我所做的

第1步：在我的布局中创建一个简单的webview

第2步：将GIF保留在assets文件夹中

第3步：使用

 webview.loadDataWithBaseURL("file:///android_asset/","" + "","text/html", "UTF-8",""); 

第4步：保留基本位置： file:///android_asset/

是的，GIF像魅力一样运行

我知道这不是我所遇到的问题的解释，但这是我做的替代解决方案