android zxing二維碼橫屏改豎屏
阿新 • • 發佈:2019-02-06
1.修改manifest檔案,將CaptureActivity的screenOrentatino設為portrait。
2.攝像頭調整為豎向在CameraConfigurationManager類中新增如下方法:
在CameraConfigurationManager的setDesiredCameraParameters方法中呼叫此方法。protected void setDisplayOrientation(Camera camera, int angle) {//mycode Method downPolymorphic; try { downPolymorphic = camera.getClass().getMethod("setDisplayOrientation", new Class[] { int.class }); if (downPolymorphic != null) downPolymorphic.invoke(camera, new Object[] { angle }); } catch (Exception e1) { e1.printStackTrace(); } }
setDisplayOrientation(camera, 90);//mycode
3.CameraConfigurationManager類的initFromCameraParameters方法中註釋一下程式碼:
//這段程式碼用於橫屏的時候+ /*if (width < height) { Log.i(TAG, "Display reports portrait orientation; assuming this is incorrect"); int temp = width; width = height; height = temp; }*/
4.CameraManager類的getFramingRectInPreview修改如下程式碼;
5.CameraManager類的getFramingRect方法修改://橫屏模式 /*rect.left = rect.left * cameraResolution.x / screenResolution.x; rect.right = rect.right * cameraResolution.x / screenResolution.x; rect.top = rect.top * cameraResolution.y / screenResolution.y; rect.bottom = rect.bottom * cameraResolution.y / screenResolution.y;*/ //豎屏模式mycode rect.left = rect.left * cameraResolution.y / screenResolution.x; rect.right = rect.right * cameraResolution.y / screenResolution.x; rect.top = rect.top * cameraResolution.x / screenResolution.y; rect.bottom = rect.bottom * cameraResolution.x / screenResolution.y;
//用於橫屏時候的掃描mycode
//int width = findDesiredDimensionInRange(screenResolution.x, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
//int height = findDesiredDimensionInRange(screenResolution.y, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
//用於豎屏的掃描
int height = findDesiredDimensionInRange(screenResolution.x, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
int width = findDesiredDimensionInRange(screenResolution.y, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
6.DecodeHandler修改decode方法
在
PlanarYUVLuminanceSource source = activity.getCameraManager().buildLuminanceSource(data, width, height);之前加入一下程式碼
//mycode
byte[] rotatedData = new byte[data.length];
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++)
rotatedData[x * height + height - y - 1] = data[x + y * width];
}
int tmp = width; // Here we are swapping, that's the difference to #11
width = height;
height = tmp;
data = rotatedData;
PlanarYUVLuminanceSource source = activity.getCameraManager().buildLuminanceSource(data, width, height);