leevanie/camerademo

自定义相机满足拍照基本功能，只做了竖屏拍照，前后摄像头切换，预览画面和照片旋转，手动点击区域聚焦，双指滑动镜头缩放，seekBar按钮控制镜头缩放

camerademo's Issues

onPictureTaken里面返回的bitmap是空字符串

` public Bitmap decodeSampledBitmapFromByte(byte[] bitmapBytes) {
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
options.inMutable = true;
options.inBitmap = BitmapFactory.decodeByteArray(bitmapBytes, 0,
bitmapBytes.length, options);
// Calculate inSampleSize
options.inSampleSize = calculateInSampleSize(options, ScreenUtils.getScreenWidth(this),
ScreenUtils.getScreenHeight(this));
// Decode bitmap with inSampleSize set
options.inJustDecodeBounds = false; // If set to true, the decoder will
options.inPurgeable = true; // Tell to gc that whether it needs free
options.inInputShareable = true; // Which kind of reference will be used

    return BitmapFactory.decodeByteArray(bitmapBytes, 0,
            bitmapBytes.length, options);
}`

用的是小米，Android8.0，刚开始几次还是有值的，后面就一直返回空字符串了，这个bitmap又不是null，换了网上的几种字节数组转bitmap也都是返回“”，换了手机又有值了