将整数值存储到文件中

Question

for (Point point : landmarks) 
{
    for (int i = 48; i <= 66; i++)
    {
        point = landmarks.get(i);
        //Log.d(TAG,"landmarks (" + landmarks.get(i) +")");
        int pointX = (int) (point.x * resizeRatio);
        int pointY = (int) (point.y * resizeRatio);

        Log.d(TAG,"My points:(" + pointX +","+ pointY +")");

        point=landmarks.get(i+1);

        int pointXX = (int) (point.x * resizeRatio);
        int pointYY = (int) (point.y * resizeRatio);

        canvas.drawLine(pointX, pointY, pointXX, pointYY, mFaceLandmardkPaint);
    }
}

从上面的代码我必须访问变量，pointX和pointY中的整数值。如何将这些值存储到文件中???

Answer 1

尝试

try{
    PrintWriter writer = new PrintWriter("the-file-name.txt", "UTF-8");

    for (int i = 48; i <= 66; i++)
    {
        point = landmarks.get(i);
        //Log.d(TAG,"landmarks (" + landmarks.get(i) +")");
        int pointX = (int) (point.x * resizeRatio);
        int pointY = (int) (point.y * resizeRatio);

        Log.d(TAG,"My points:(" + pointX +","+ pointY +")");

        point=landmarks.get(i+1);

        int pointXX = (int) (point.x * resizeRatio);
        int pointYY = (int) (point.y * resizeRatio);

        canvas.drawLine(pointX, pointY, pointXX, pointYY, mFaceLandmardkPaint);

        writer.println(pointX + ",+ pointY + ","+pointXX+","+pointYY);
    }


    writer.close();
} catch (IOException e) {
    // do something
}