微信上传图片（2）

来源：互联网发布：人工智能东南大学编辑：程序博客网时间：2024/05/29 09:22

之前那样做，发现图片好模糊，加了一个压缩图片的，还有存储图片的方法如下：

大神的demo地址：http://blog.csdn.net/jdsjlzx/article/details/44160603#html
微信上传图片问题链接：http://blog.csdn.net/lmy0111ly/article/details/50586455#comments

照相机以及返回结果

//照相机    public void photo() {        File file = new File(Environment.getExternalStorageDirectory(), "/shopping/cache/");        if (!file.exists())            file.mkdirs();        filePath = Environment.getExternalStorageDirectory() + "/shopping/cache/";        fileName = String.valueOf(System.currentTimeMillis() + ".png");        Intent openCameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);        openCameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(filePath, fileName)));        startActivityForResult(openCameraIntent, TAKE_PICTURE);    }    //照相机返回的图片    protected void onActivityResult(int requestCode, int resultCode, final Intent data) {        switch (requestCode) {            case TAKE_PICTURE:                if (Bimp.tempSelectBitmap.size() < 9 && resultCode == RESULT_OK) {                    builder = new CustomDialogLoading.Builder(this, "正在处理图片，请稍后...");                    mDialog = builder.create();                    mDialog.show();                    Thread thread = new Thread(new Runnable() {                        @Override                        public void run() {                            path = filePath + fileName;                            Bitmap bm = FileUtils.convertToBitmap(path, 480, 800);//大小压缩                            String savePath = FileUtils.saveBitmap(bm, fileName);//质量压缩并存储                            ImageItem takePhoto = new ImageItem();                            takePhoto.setBitmap(bm);                            takePhoto.setImagePath(savePath);                            Bimp.tempSelectBitmap.add(takePhoto);                            handler.sendEmptyMessage(0);                        }                    });                    thread.start();                }                break;        }    }

压缩图片及存储图片方法

public class FileUtils {    /**     * 根据路径加载bitmap  将缩放后的bitmap返回去     *     * @param path 路径     * @param w    宽     * @param h    长     * @return     */    public static  Bitmap convertToBitmap(String path, int w, int h) {        try {            BitmapFactory.Options opts = new BitmapFactory.Options();            // 设置为ture只获取图片大小            opts.inJustDecodeBounds = true;            opts.inPreferredConfig = Bitmap.Config.ARGB_8888;            // 返回为空            BitmapFactory.decodeFile(path, opts);            int width = opts.outWidth;            int height = opts.outHeight;            float scaleWidth = 0.f, scaleHeight = 0.f;            if (width > w || height > h) {//如果宽度大于 传入的宽度  或者 高度大于 传入的高度大于                // 缩放                scaleWidth = ((float) width) / w;                scaleHeight = ((float) height) / h;            }            opts.inJustDecodeBounds = false;            //缩放后的高度和宽度取最大值            float scale = Math.max(scaleWidth, scaleHeight);            opts.inSampleSize = (int) scale;//此处是最后的宽高值//            //WeakReference 弱引用//            WeakReference<Bitmap> weak = new WeakReference<Bitmap>actory.decodeFile(path, opts));//            Bitmap bMapRotate = Bitmap.createBitmap(weak.get(BitmapF(), 0, 0, weak.get().getWidth(), weak.get().getHeight(), null, true);            Bitmap bMapRotate = BitmapFactory.decodeFile(path, opts);            ByteArrayOutputStream baos = new ByteArrayOutputStream();            bMapRotate.compress(Bitmap.CompressFormat.JPEG, 50, baos);            ByteArrayInputStream bais=new ByteArrayInputStream(baos.toByteArray());            Bitmap bitmap = BitmapFactory.decodeStream(bais);            System.out.println("质量 压缩---------------width-" + bMapRotate.getWidth() + "---height--" + bMapRotate.getHeight()+"------------------size---"+bMapRotate.getRowBytes());            if (bMapRotate != null) {                return bMapRotate;            }            return null;        } catch (Exception e) {            e.printStackTrace();            return null;        }    }/**     * 存储图片，返回路径     * @param bm     * @param picName     * @return     */    public static String saveBitmap(Bitmap bm, String picName) {        try {            if (!isFileExist(picName)) {                File tempf = createSDDir("");            }            File f = new File(SDPATH, picName);            if (f.exists()) {                f.delete();            }            FileOutputStream out = new FileOutputStream(f);            bm.compress(Bitmap.CompressFormat.PNG, 70, out);            out.flush();            out.close();        } catch (FileNotFoundException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }        return SDPATH + picName;    }}

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