Question

我想用AnimatedGifEncoder创建一个gif文件，其工作成功创建了我的gif，但是我无法更改帧和其他设置（如质量）之间的延迟。

还有其他人在android上使用此类吗？

这是我的代码：

a=[1,2,3,4,5,6,7]
b=[8,9,10,11,12,13,14]
c=[{i:j} for i in a for j in b]
print(c)

这是我的代码：

[{1: 8}, {1: 9}, {1: 10}, {1: 11}, {1: 12}, {1: 13}, {1: 14}, {2: 8}, {2: 9}, {2: 10}, {2: 11}, {2: 12}, {2: 13}, {2: 14}, {3: 8}, {3: 9}, {3: 10}, {3: 11}, {3: 12}, {3: 13}, {3: 14}, {4: 8}, {4: 9}, {4: 10}, {4: 11}, {4: 12}, {4: 13}, {4: 14}, {5: 8}, {5: 9}, {5: 10}, {5: 11}, {5: 12}, {5: 13}, {5: 14}, {6: 8}, {6: 9}, {6: 10}, {6: 11}, {6: 12}, {6: 13}, {6: 14}, {7: 8}, {7: 9}, {7: 10}, {7: 11}, {7: 12}, {7: 13}, {7: 14}]

}

Answer 1

我建议您使用此库 Android NDK GIF Library ，它比AnimatedGifEncoder更好：

这是如何生成GIF文件并将其保存到图库的完整示例：

@SuppressLint("StaticFieldLeak")
    public class GenerateSaveGIF extends AsyncTask<Void, Integer, String> {
        Context mContext;
        String imageFileName = "APP_" + System.currentTimeMillis() + ".gif";
        ArrayList<BitmapGIFUtil> arrayListBitmaps = new ArrayList<>();
        boolean isSavingBitmapsFinished = false;

        GenerateSaveGIF(Context context) {
            mContext = context;
        }

        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            //Preparing;
            // Display ProgressDialog here 
        }

        @SuppressLint("WrongThread")
        @Override
        protected String doInBackground(Void... voids) {
            File storageDir = new File(
                    Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES)
                            + "/APP_FOLDER");
            boolean success = true;
            if (!storageDir.exists()) {
                success = storageDir.mkdirs();
            }
            if (success) {
                File imageFile = new File(storageDir, imageFileName);
                savedImagePath = imageFile.getAbsolutePath();
                FileOutputStream outStream = null;
                try {
                    generateGIF(getArrayBitmaps(), savedImagePath);
                } catch (Exception e) {
                    e.printStackTrace();
                }
                galleryAddPic(savedImagePath);
            }
            return savedImagePath;
        }

        ArrayList<BitmapGIFUtil> getArrayBitmaps() {
            for (int i = 0; i < mDrawableGif.getNumberOfFrames(); ++i) {
                int GIFDelay = mDrawableGif.getFrameDuration(i); //CHANGE IT IF YOU WANT 
                try {
                    Thread.sleep(GIFDelay);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                //replace createEachFrame() with your method getBitmapFromResource(); 
                arrayListBitmaps.add(new BitmapGIFUtil(createEachFrame(), GIFDelay));
            }
            isSavingBitmapsFinished = true;
            return arrayListBitmaps;
        }

        void generateGIF(ArrayList<BitmapGIFUtil> arrayList, String path) {
            GifEncoder gifEncoder = new GifEncoder();
            try {
                gifEncoder.init(arrayList.get(0).getBitmap().getWidth(), arrayList.get(0).getBitmap().getHeight(), path, GifEncoder.EncodingType.ENCODING_TYPE_SIMPLE_FAST);
                for (int i = 0; i < arrayList.size(); i++) {
                    gifEncoder.encodeFrame(arrayList.get(i).getBitmap(), arrayList.get(i).getDelay());
                }
                gifEncoder.close();
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            }
        }

        @Override
        protected void onPostExecute(String s) {
            super.onPostExecute(s);
            Toast.makeText(this, getResources().getString(R.string.gif_saved), Toast.LENGTH_SHORT).show();
        }
    }

通知画廊：

 private void galleryAddPic(String imagePath) {
        Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
        File f = new File(imagePath);
        Uri contentUri = Uri.fromFile(f);
        mediaScanIntent.setData(contentUri);
        sendBroadcast(mediaScanIntent);
    }

BitmapGIFUtil类：

    public class BitmapGIFUtil {
    private Bitmap bitmap;
    private int Delay;

    public BitmapGIFUtil() {
    }

    public BitmapGIFUtil(Bitmap bitmap, int delay) {

        this.bitmap = bitmap;
        Delay = delay;
    }

    public Bitmap getBitmap() {
        return bitmap;
    }

    public void setBitmap(Bitmap bitmap) {
        this.bitmap = bitmap;
    }

    public int getDelay() {
        return Delay;
    }

    public void setDelay(int delay) {
        Delay = delay;
    }
}

在Android上使用AnimatedGifEncoder生成Gif

1 个答案: