Android外接红外摄像头，控制拍照并保存到指定路径下

最近在做一个产品，需要Android主板外接红外热成像摄像头，保存红外摄像头拍下的照片，这里记一下实现的方法。

	/**
     * 保存照片
     * author:qingjiaorousi
     * 2021.10.28
     */
    private void savePicture(){
    
    
        mCamera.takePicture(null, null, new Camera.PictureCallback() {
    
    
            @Override
            public void onPictureTaken(byte[] data, Camera camera) {
    
    

                String filePath = Environment.getExternalStorageDirectory()
                        .getPath()  +"/";
                SimpleDateFormat format = new SimpleDateFormat("yyyyMMddHHmmss");
                Date curDate = new Date(System.currentTimeMillis());
                String nowTime = format.format(curDate);
                String path = Environment.getExternalStorageDirectory()
                        .getPath()  +"/focus/";

                File pathDir = new File(path);
                if (!pathDir.exists()){
    
    
                    pathDir.mkdirs();
                }

                final Bitmap mBitmap;
                Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
                Matrix matrix = new Matrix();

                mBitmap = Bitmap.createBitmap(bitmapResult, 0, 0, bitmapResult.getWidth(), bitmapResult.getHeight(), matrix, true);
                saveBitmap(path+ nowTime + ".jpg",mBitmap);
            }
        });

    }
    public  void saveBitmap(String filePath ,Bitmap mBitmap) {
    
    
        File f = new File(filePath);
        FileOutputStream fOut = null;
        try {
    
    
            fOut = new FileOutputStream(f);
            mBitmap.compress(Bitmap.CompressFormat.PNG, 100, fOut);
        } catch (FileNotFoundException e) {
    
    
            e.printStackTrace();
        }

        try {
    
    
            fOut.flush();
        } catch (IOException e) {
    
    
            e.printStackTrace();
        }
        try {
    
    
            fOut.close();
        } catch (IOException e) {
    
    
            e.printStackTrace();
        }
        Toast.makeText(MainActivity.this, "拍照成功！", Toast.LENGTH_LONG).show();
    }